diff --git a/FORMAT b/FORMAT deleted file mode 100644 index ce8c3ee..0000000 --- a/FORMAT +++ /dev/null @@ -1,18 +0,0 @@ -scrypt encrypted data format ----------------------------- - -offset length -0 6 "scrypt" -6 1 scrypt data file version number (== 0) -7 1 log2(N) (must be between 1 and 63 inclusive) -8 4 r (big-endian integer; must satisfy r * p < 2^30) -12 4 p (big-endian integer; must satisfy r * p < 2^30) -16 32 salt -48 16 first 16 bytes of SHA256(bytes 0 .. 47) -64 32 HMAC-SHA256(bytes 0 .. 63) -96 X data xor AES256-CTR key stream generated with nonce == 0 -96+X 32 HMAC-SHA256(bytes 0 .. 96 + (X - 1)) - -AES256-CTR is computed with a 256-bit AES key key_enc, and HMAC-SHA256 is -computed with a 256-bit key key_hmac, where - scrypt(password, salt, N, r, p, 64) == [key_enc][key_hmac] diff --git a/Makefile.in b/Makefile.in deleted file mode 100644 index 28e1e1f..0000000 --- a/Makefile.in +++ /dev/null @@ -1,739 +0,0 @@ -# Makefile.in generated by automake 1.10.1 from Makefile.am. -# @configure_input@ - -# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, -# 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. -# This Makefile.in is free software; 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An attacker who obtains your site-specific -password and the site's URL could attempt to determine your -master password by brute-force. Typically, these password generators -work by combining your master password with the site's URL and -computing a cryptographic (SHA1 or MD5) hash (perhaps using HMAC). -These hashes were designed such that they could be calculated very -quickly, which the opposite of what we want. A more secure method -would be to use PBKDF2 or bcrypt or Colin Percival's new scrypt -algorithm, which would make a brute-force attack many orders of -magnitude more difficult. - -This project uses Colin Percival's scrypt as a password generator. - -For documentation on how to use it, see - - https://github.com/chrisoei/scrypt-genpass/wiki - -For more details of how scrypt works, see - - http://www.tarsnap.com/scrypt.html +This fork of scrypt-genpass has been abandoned. Instead, a complete rewrite +named [CryptoPassphrase](https://fl.nil.im/cryptopassphrase) is being actively +maintained. Please use that instead! diff --git a/config.aux/depcomp b/config.aux/depcomp deleted file mode 100755 index e5f9736..0000000 --- a/config.aux/depcomp +++ /dev/null @@ -1,589 +0,0 @@ -#! /bin/sh -# depcomp - compile a program generating dependencies as side-effects - -scriptversion=2007-03-29.01 - -# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007 Free Software -# Foundation, Inc. - -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2, or (at your option) -# any later version. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. - -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA -# 02110-1301, USA. - -# As a special exception to the GNU General Public License, if you -# distribute this file as part of a program that contains a -# configuration script generated by Autoconf, you may include it under -# the same distribution terms that you use for the rest of that program. - -# Originally written by Alexandre Oliva . - -case $1 in - '') - echo "$0: No command. 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Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This file was originally written by Colin Percival as part of the Tarsnap - * online backup system. - */ -#include "scrypt_platform.h" - -#include -#include - -#include -#include -#include -#include - -#include "sha256.h" -#include "sysendian.h" - -#include "crypto_scrypt.h" - -static void blkcpy(void *, void *, size_t); -static void blkxor(void *, void *, size_t); -static void salsa20_8(uint32_t[16]); -static void blockmix_salsa8(uint32_t *, uint32_t *, uint32_t *, size_t); -static uint64_t integerify(void *, size_t); -static void smix(uint8_t *, size_t, uint64_t, uint32_t *, uint32_t *); - -static void -blkcpy(void * dest, void * src, size_t len) -{ - size_t * D = dest; - size_t * S = src; - size_t L = len / sizeof(size_t); - size_t i; - - for (i = 0; i < L; i++) - D[i] = S[i]; -} - -static void -blkxor(void * dest, void * src, size_t len) -{ - size_t * D = dest; - size_t * S = src; - size_t L = len / sizeof(size_t); - size_t i; - - for (i = 0; i < L; i++) - D[i] ^= S[i]; -} - -/** - * salsa20_8(B): - * Apply the salsa20/8 core to the provided block. - */ -static void -salsa20_8(uint32_t B[16]) -{ - uint32_t x[16]; - size_t i; - - blkcpy(x, B, 64); - for (i = 0; i < 8; i += 2) { -#define R(a,b) (((a) << (b)) | ((a) >> (32 - (b)))) - /* Operate on columns. */ - x[ 4] ^= R(x[ 0]+x[12], 7); x[ 8] ^= R(x[ 4]+x[ 0], 9); - x[12] ^= R(x[ 8]+x[ 4],13); x[ 0] ^= R(x[12]+x[ 8],18); - - x[ 9] ^= R(x[ 5]+x[ 1], 7); x[13] ^= R(x[ 9]+x[ 5], 9); - x[ 1] ^= R(x[13]+x[ 9],13); x[ 5] ^= R(x[ 1]+x[13],18); - - x[14] ^= R(x[10]+x[ 6], 7); x[ 2] ^= R(x[14]+x[10], 9); - x[ 6] ^= R(x[ 2]+x[14],13); x[10] ^= R(x[ 6]+x[ 2],18); - - x[ 3] ^= R(x[15]+x[11], 7); x[ 7] ^= R(x[ 3]+x[15], 9); - x[11] ^= R(x[ 7]+x[ 3],13); x[15] ^= R(x[11]+x[ 7],18); - - /* Operate on rows. */ - x[ 1] ^= R(x[ 0]+x[ 3], 7); x[ 2] ^= R(x[ 1]+x[ 0], 9); - x[ 3] ^= R(x[ 2]+x[ 1],13); x[ 0] ^= R(x[ 3]+x[ 2],18); - - x[ 6] ^= R(x[ 5]+x[ 4], 7); x[ 7] ^= R(x[ 6]+x[ 5], 9); - x[ 4] ^= R(x[ 7]+x[ 6],13); x[ 5] ^= R(x[ 4]+x[ 7],18); - - x[11] ^= R(x[10]+x[ 9], 7); x[ 8] ^= R(x[11]+x[10], 9); - x[ 9] ^= R(x[ 8]+x[11],13); x[10] ^= R(x[ 9]+x[ 8],18); - - x[12] ^= R(x[15]+x[14], 7); x[13] ^= R(x[12]+x[15], 9); - x[14] ^= R(x[13]+x[12],13); x[15] ^= R(x[14]+x[13],18); -#undef R - } - for (i = 0; i < 16; i++) - B[i] += x[i]; -} - -/** - * blockmix_salsa8(Bin, Bout, X, r): - * Compute Bout = BlockMix_{salsa20/8, r}(Bin). The input Bin must be 128r - * bytes in length; the output Bout must also be the same size. The - * temporary space X must be 64 bytes. - */ -static void -blockmix_salsa8(uint32_t * Bin, uint32_t * Bout, uint32_t * X, size_t r) -{ - size_t i; - - /* 1: X <-- B_{2r - 1} */ - blkcpy(X, &Bin[(2 * r - 1) * 16], 64); - - /* 2: for i = 0 to 2r - 1 do */ - for (i = 0; i < 2 * r; i += 2) { - /* 3: X <-- H(X \xor B_i) */ - blkxor(X, &Bin[i * 16], 64); - salsa20_8(X); - - /* 4: Y_i <-- X */ - /* 6: B' <-- (Y_0, Y_2 ... Y_{2r-2}, Y_1, Y_3 ... Y_{2r-1}) */ - blkcpy(&Bout[i * 8], X, 64); - - /* 3: X <-- H(X \xor B_i) */ - blkxor(X, &Bin[i * 16 + 16], 64); - salsa20_8(X); - - /* 4: Y_i <-- X */ - /* 6: B' <-- (Y_0, Y_2 ... Y_{2r-2}, Y_1, Y_3 ... Y_{2r-1}) */ - blkcpy(&Bout[i * 8 + r * 16], X, 64); - } -} - -/** - * integerify(B, r): - * Return the result of parsing B_{2r-1} as a little-endian integer. - */ -static uint64_t -integerify(void * B, size_t r) -{ - uint32_t * X = (void *)((uintptr_t)(B) + (2 * r - 1) * 64); - - return (((uint64_t)(X[1]) << 32) + X[0]); -} - -/** - * smix(B, r, N, V, XY): - * Compute B = SMix_r(B, N). The input B must be 128r bytes in length; - * the temporary storage V must be 128rN bytes in length; the temporary - * storage XY must be 256r + 64 bytes in length. The value N must be a - * power of 2 greater than 1. The arrays B, V, and XY must be aligned to a - * multiple of 64 bytes. - */ -static void -smix(uint8_t * B, size_t r, uint64_t N, uint32_t * V, uint32_t * XY) -{ - uint32_t * X = XY; - uint32_t * Y = &XY[32 * r]; - uint32_t * Z = &XY[64 * r]; - uint64_t i; - uint64_t j; - size_t k; - - /* 1: X <-- B */ - for (k = 0; k < 32 * r; k++) - X[k] = le32dec(&B[4 * k]); - - /* 2: for i = 0 to N - 1 do */ - for (i = 0; i < N; i += 2) { - /* 3: V_i <-- X */ - blkcpy(&V[i * (32 * r)], X, 128 * r); - - /* 4: X <-- H(X) */ - blockmix_salsa8(X, Y, Z, r); - - /* 3: V_i <-- X */ - blkcpy(&V[(i + 1) * (32 * r)], Y, 128 * r); - - /* 4: X <-- H(X) */ - blockmix_salsa8(Y, X, Z, r); - } - - /* 6: for i = 0 to N - 1 do */ - for (i = 0; i < N; i += 2) { - /* 7: j <-- Integerify(X) mod N */ - j = integerify(X, r) & (N - 1); - - /* 8: X <-- H(X \xor V_j) */ - blkxor(X, &V[j * (32 * r)], 128 * r); - blockmix_salsa8(X, Y, Z, r); - - /* 7: j <-- Integerify(X) mod N */ - j = integerify(Y, r) & (N - 1); - - /* 8: X <-- H(X \xor V_j) */ - blkxor(Y, &V[j * (32 * r)], 128 * r); - blockmix_salsa8(Y, X, Z, r); - } - - /* 10: B' <-- X */ - for (k = 0; k < 32 * r; k++) - le32enc(&B[4 * k], X[k]); -} - -/** - * crypto_scrypt(passwd, passwdlen, salt, saltlen, N, r, p, buf, buflen): - * Compute scrypt(passwd[0 .. passwdlen - 1], salt[0 .. saltlen - 1], N, r, - * p, buflen) and write the result into buf. The parameters r, p, and buflen - * must satisfy r * p < 2^30 and buflen <= (2^32 - 1) * 32. The parameter N - * must be a power of 2 greater than 1. - * - * Return 0 on success; or -1 on error. - */ -int -crypto_scrypt(const uint8_t * passwd, size_t passwdlen, - const uint8_t * salt, size_t saltlen, uint64_t N, uint32_t r, uint32_t p, - uint8_t * buf, size_t buflen) -{ - void * B0, * V0, * XY0; - uint8_t * B; - uint32_t * V; - uint32_t * XY; - uint32_t i; - - /* Sanity-check parameters. */ -#if SIZE_MAX > UINT32_MAX - if (buflen > (((uint64_t)(1) << 32) - 1) * 32) { - errno = EFBIG; - goto err0; - } -#endif - if ((uint64_t)(r) * (uint64_t)(p) >= (1 << 30)) { - errno = EFBIG; - goto err0; - } - if (((N & (N - 1)) != 0) || (N == 0)) { - errno = EINVAL; - goto err0; - } - if ((r > SIZE_MAX / 128 / p) || -#if SIZE_MAX / 256 <= UINT32_MAX - (r > SIZE_MAX / 256) || -#endif - (N > SIZE_MAX / 128 / r)) { - errno = ENOMEM; - goto err0; - } - - /* Allocate memory. */ -#ifdef HAVE_POSIX_MEMALIGN - if ((errno = posix_memalign(&B0, 64, 128 * r * p)) != 0) - goto err0; - B = (uint8_t *)(B0); - if ((errno = posix_memalign(&XY0, 64, 256 * r + 64)) != 0) - goto err1; - XY = (uint32_t *)(XY0); -#ifndef MAP_ANON - if ((errno = posix_memalign(&V0, 64, 128 * r * N)) != 0) - goto err2; - V = (uint32_t *)(V0); -#endif -#else - if ((B0 = malloc(128 * r * p + 63)) == NULL) - goto err0; - B = (uint8_t *)(((uintptr_t)(B0) + 63) & ~ (uintptr_t)(63)); - if ((XY0 = malloc(256 * r + 64 + 63)) == NULL) - goto err1; - XY = (uint32_t *)(((uintptr_t)(XY0) + 63) & ~ (uintptr_t)(63)); -#ifndef MAP_ANON - if ((V0 = malloc(128 * r * N + 63)) == NULL) - goto err2; - V = (uint32_t *)(((uintptr_t)(V0) + 63) & ~ (uintptr_t)(63)); -#endif -#endif -#ifdef MAP_ANON - if ((V0 = mmap(NULL, 128 * r * N, PROT_READ | PROT_WRITE, -#ifdef MAP_NOCORE - MAP_ANON | MAP_PRIVATE | MAP_NOCORE, -#else - MAP_ANON | MAP_PRIVATE, -#endif - -1, 0)) == MAP_FAILED) - goto err2; - V = (uint32_t *)(V0); -#endif - - /* 1: (B_0 ... B_{p-1}) <-- PBKDF2(P, S, 1, p * MFLen) */ - PBKDF2_SHA256(passwd, passwdlen, salt, saltlen, 1, B, p * 128 * r); - - /* 2: for i = 0 to p - 1 do */ - for (i = 0; i < p; i++) { - /* 3: B_i <-- MF(B_i, N) */ - smix(&B[i * 128 * r], r, N, V, XY); - } - - /* 5: DK <-- PBKDF2(P, B, 1, dkLen) */ - PBKDF2_SHA256(passwd, passwdlen, B, p * 128 * r, 1, buf, buflen); - - /* Free memory. */ -#ifdef MAP_ANON - if (munmap(V0, 128 * r * N)) - goto err2; -#else - free(V0); -#endif - free(XY0); - free(B0); - - /* Success! */ - return (0); - -err2: - free(XY0); -err1: - free(B0); -err0: - /* Failure! */ - return (-1); -} diff --git a/lib/crypto/crypto_scrypt-ref.c b/lib/crypto/crypto_scrypt-ref.c deleted file mode 100644 index b47ca45..0000000 --- a/lib/crypto/crypto_scrypt-ref.c +++ /dev/null @@ -1,284 +0,0 @@ -/*- - * Copyright 2009 Colin Percival - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This file was originally written by Colin Percival as part of the Tarsnap - * online backup system. - */ -#include "scrypt_platform.h" - -#include -#include -#include -#include - -#include "sha256.h" -#include "sysendian.h" - -#include "crypto_scrypt.h" - -static void blkcpy(uint8_t *, uint8_t *, size_t); -static void blkxor(uint8_t *, uint8_t *, size_t); -static void salsa20_8(uint8_t[64]); -static void blockmix_salsa8(uint8_t *, uint8_t *, size_t); -static uint64_t integerify(uint8_t *, size_t); -static void smix(uint8_t *, size_t, uint64_t, uint8_t *, uint8_t *); - -static void -blkcpy(uint8_t * dest, uint8_t * src, size_t len) -{ - size_t i; - - for (i = 0; i < len; i++) - dest[i] = src[i]; -} - -static void -blkxor(uint8_t * dest, uint8_t * src, size_t len) -{ - size_t i; - - for (i = 0; i < len; i++) - dest[i] ^= src[i]; -} - -/** - * salsa20_8(B): - * Apply the salsa20/8 core to the provided block. - */ -static void -salsa20_8(uint8_t B[64]) -{ - uint32_t B32[16]; - uint32_t x[16]; - size_t i; - - /* Convert little-endian values in. */ - for (i = 0; i < 16; i++) - B32[i] = le32dec(&B[i * 4]); - - /* Compute x = doubleround^4(B32). */ - for (i = 0; i < 16; i++) - x[i] = B32[i]; - for (i = 0; i < 8; i += 2) { -#define R(a,b) (((a) << (b)) | ((a) >> (32 - (b)))) - /* Operate on columns. */ - x[ 4] ^= R(x[ 0]+x[12], 7); x[ 8] ^= R(x[ 4]+x[ 0], 9); - x[12] ^= R(x[ 8]+x[ 4],13); x[ 0] ^= R(x[12]+x[ 8],18); - - x[ 9] ^= R(x[ 5]+x[ 1], 7); x[13] ^= R(x[ 9]+x[ 5], 9); - x[ 1] ^= R(x[13]+x[ 9],13); x[ 5] ^= R(x[ 1]+x[13],18); - - x[14] ^= R(x[10]+x[ 6], 7); x[ 2] ^= R(x[14]+x[10], 9); - x[ 6] ^= R(x[ 2]+x[14],13); x[10] ^= R(x[ 6]+x[ 2],18); - - x[ 3] ^= R(x[15]+x[11], 7); x[ 7] ^= R(x[ 3]+x[15], 9); - x[11] ^= R(x[ 7]+x[ 3],13); x[15] ^= R(x[11]+x[ 7],18); - - /* Operate on rows. */ - x[ 1] ^= R(x[ 0]+x[ 3], 7); x[ 2] ^= R(x[ 1]+x[ 0], 9); - x[ 3] ^= R(x[ 2]+x[ 1],13); x[ 0] ^= R(x[ 3]+x[ 2],18); - - x[ 6] ^= R(x[ 5]+x[ 4], 7); x[ 7] ^= R(x[ 6]+x[ 5], 9); - x[ 4] ^= R(x[ 7]+x[ 6],13); x[ 5] ^= R(x[ 4]+x[ 7],18); - - x[11] ^= R(x[10]+x[ 9], 7); x[ 8] ^= R(x[11]+x[10], 9); - x[ 9] ^= R(x[ 8]+x[11],13); x[10] ^= R(x[ 9]+x[ 8],18); - - x[12] ^= R(x[15]+x[14], 7); x[13] ^= R(x[12]+x[15], 9); - x[14] ^= R(x[13]+x[12],13); x[15] ^= R(x[14]+x[13],18); -#undef R - } - - /* Compute B32 = B32 + x. */ - for (i = 0; i < 16; i++) - B32[i] += x[i]; - - /* Convert little-endian values out. */ - for (i = 0; i < 16; i++) - le32enc(&B[4 * i], B32[i]); -} - -/** - * blockmix_salsa8(B, Y, r): - * Compute B = BlockMix_{salsa20/8, r}(B). The input B must be 128r bytes in - * length; the temporary space Y must also be the same size. - */ -static void -blockmix_salsa8(uint8_t * B, uint8_t * Y, size_t r) -{ - uint8_t X[64]; - size_t i; - - /* 1: X <-- B_{2r - 1} */ - blkcpy(X, &B[(2 * r - 1) * 64], 64); - - /* 2: for i = 0 to 2r - 1 do */ - for (i = 0; i < 2 * r; i++) { - /* 3: X <-- H(X \xor B_i) */ - blkxor(X, &B[i * 64], 64); - salsa20_8(X); - - /* 4: Y_i <-- X */ - blkcpy(&Y[i * 64], X, 64); - } - - /* 6: B' <-- (Y_0, Y_2 ... Y_{2r-2}, Y_1, Y_3 ... Y_{2r-1}) */ - for (i = 0; i < r; i++) - blkcpy(&B[i * 64], &Y[(i * 2) * 64], 64); - for (i = 0; i < r; i++) - blkcpy(&B[(i + r) * 64], &Y[(i * 2 + 1) * 64], 64); -} - -/** - * integerify(B, r): - * Return the result of parsing B_{2r-1} as a little-endian integer. - */ -static uint64_t -integerify(uint8_t * B, size_t r) -{ - uint8_t * X = &B[(2 * r - 1) * 64]; - - return (le64dec(X)); -} - -/** - * smix(B, r, N, V, XY): - * Compute B = SMix_r(B, N). The input B must be 128r bytes in length; the - * temporary storage V must be 128rN bytes in length; the temporary storage - * XY must be 256r bytes in length. The value N must be a power of 2. - */ -static void -smix(uint8_t * B, size_t r, uint64_t N, uint8_t * V, uint8_t * XY) -{ - uint8_t * X = XY; - uint8_t * Y = &XY[128 * r]; - uint64_t i; - uint64_t j; - - /* 1: X <-- B */ - blkcpy(X, B, 128 * r); - - /* 2: for i = 0 to N - 1 do */ - for (i = 0; i < N; i++) { - /* 3: V_i <-- X */ - blkcpy(&V[i * (128 * r)], X, 128 * r); - - /* 4: X <-- H(X) */ - blockmix_salsa8(X, Y, r); - } - - /* 6: for i = 0 to N - 1 do */ - for (i = 0; i < N; i++) { - /* 7: j <-- Integerify(X) mod N */ - j = integerify(X, r) & (N - 1); - - /* 8: X <-- H(X \xor V_j) */ - blkxor(X, &V[j * (128 * r)], 128 * r); - blockmix_salsa8(X, Y, r); - } - - /* 10: B' <-- X */ - blkcpy(B, X, 128 * r); -} - -/** - * crypto_scrypt(passwd, passwdlen, salt, saltlen, N, r, p, buf, buflen): - * Compute scrypt(passwd[0 .. passwdlen - 1], salt[0 .. saltlen - 1], N, r, - * p, buflen) and write the result into buf. The parameters r, p, and buflen - * must satisfy r * p < 2^30 and buflen <= (2^32 - 1) * 32. The parameter N - * must be a power of 2. - * - * Return 0 on success; or -1 on error. - */ -int -crypto_scrypt(const uint8_t * passwd, size_t passwdlen, - const uint8_t * salt, size_t saltlen, uint64_t N, uint32_t r, uint32_t p, - uint8_t * buf, size_t buflen) -{ - uint8_t * B; - uint8_t * V; - uint8_t * XY; - uint32_t i; - - /* Sanity-check parameters. */ -#if SIZE_MAX > UINT32_MAX - if (buflen > (((uint64_t)(1) << 32) - 1) * 32) { - errno = EFBIG; - goto err0; - } -#endif - if ((uint64_t)(r) * (uint64_t)(p) >= (1 << 30)) { - errno = EFBIG; - goto err0; - } - if (((N & (N - 1)) != 0) || (N == 0)) { - errno = EINVAL; - goto err0; - } - if ((r > SIZE_MAX / 128 / p) || -#if SIZE_MAX / 256 <= UINT32_MAX - (r > SIZE_MAX / 256) || -#endif - (N > SIZE_MAX / 128 / r)) { - errno = ENOMEM; - goto err0; - } - - /* Allocate memory. */ - if ((B = malloc(128 * r * p)) == NULL) - goto err0; - if ((XY = malloc(256 * r)) == NULL) - goto err1; - if ((V = malloc(128 * r * N)) == NULL) - goto err2; - - /* 1: (B_0 ... B_{p-1}) <-- PBKDF2(P, S, 1, p * MFLen) */ - PBKDF2_SHA256(passwd, passwdlen, salt, saltlen, 1, B, p * 128 * r); - - /* 2: for i = 0 to p - 1 do */ - for (i = 0; i < p; i++) { - /* 3: B_i <-- MF(B_i, N) */ - smix(&B[i * 128 * r], r, N, V, XY); - } - - /* 5: DK <-- PBKDF2(P, B, 1, dkLen) */ - PBKDF2_SHA256(passwd, passwdlen, B, p * 128 * r, 1, buf, buflen); - - /* Free memory. */ - free(V); - free(XY); - free(B); - - /* Success! */ - return (0); - -err2: - free(XY); -err1: - free(B); -err0: - /* Failure! */ - return (-1); -} diff --git a/lib/crypto/crypto_scrypt-sse.c b/lib/crypto/crypto_scrypt-sse.c deleted file mode 100644 index 875175e..0000000 --- a/lib/crypto/crypto_scrypt-sse.c +++ /dev/null @@ -1,366 +0,0 @@ -/*- - * Copyright 2009 Colin Percival - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This file was originally written by Colin Percival as part of the Tarsnap - * online backup system. - */ -#include "scrypt_platform.h" - -#include -#include - -#include -#include -#include -#include -#include - -#include "sha256.h" -#include "sysendian.h" - -#include "crypto_scrypt.h" - -static void blkcpy(void *, void *, size_t); -static void blkxor(void *, void *, size_t); -static void salsa20_8(__m128i *); -static void blockmix_salsa8(__m128i *, __m128i *, __m128i *, size_t); -static uint64_t integerify(void *, size_t); -static void smix(uint8_t *, size_t, uint64_t, void *, void *); - -static void -blkcpy(void * dest, void * src, size_t len) -{ - __m128i * D = dest; - __m128i * S = src; - size_t L = len / 16; - size_t i; - - for (i = 0; i < L; i++) - D[i] = S[i]; -} - -static void -blkxor(void * dest, void * src, size_t len) -{ - __m128i * D = dest; - __m128i * S = src; - size_t L = len / 16; - size_t i; - - for (i = 0; i < L; i++) - D[i] = _mm_xor_si128(D[i], S[i]); -} - -/** - * salsa20_8(B): - * Apply the salsa20/8 core to the provided block. - */ -static void -salsa20_8(__m128i B[4]) -{ - __m128i X0, X1, X2, X3; - __m128i T; - size_t i; - - X0 = B[0]; - X1 = B[1]; - X2 = B[2]; - X3 = B[3]; - - for (i = 0; i < 8; i += 2) { - /* Operate on "columns". */ - T = _mm_add_epi32(X0, X3); - X1 = _mm_xor_si128(X1, _mm_slli_epi32(T, 7)); - X1 = _mm_xor_si128(X1, _mm_srli_epi32(T, 25)); - T = _mm_add_epi32(X1, X0); - X2 = _mm_xor_si128(X2, _mm_slli_epi32(T, 9)); - X2 = _mm_xor_si128(X2, _mm_srli_epi32(T, 23)); - T = _mm_add_epi32(X2, X1); - X3 = _mm_xor_si128(X3, _mm_slli_epi32(T, 13)); - X3 = _mm_xor_si128(X3, _mm_srli_epi32(T, 19)); - T = _mm_add_epi32(X3, X2); - X0 = _mm_xor_si128(X0, _mm_slli_epi32(T, 18)); - X0 = _mm_xor_si128(X0, _mm_srli_epi32(T, 14)); - - /* Rearrange data. */ - X1 = _mm_shuffle_epi32(X1, 0x93); - X2 = _mm_shuffle_epi32(X2, 0x4E); - X3 = _mm_shuffle_epi32(X3, 0x39); - - /* Operate on "rows". */ - T = _mm_add_epi32(X0, X1); - X3 = _mm_xor_si128(X3, _mm_slli_epi32(T, 7)); - X3 = _mm_xor_si128(X3, _mm_srli_epi32(T, 25)); - T = _mm_add_epi32(X3, X0); - X2 = _mm_xor_si128(X2, _mm_slli_epi32(T, 9)); - X2 = _mm_xor_si128(X2, _mm_srli_epi32(T, 23)); - T = _mm_add_epi32(X2, X3); - X1 = _mm_xor_si128(X1, _mm_slli_epi32(T, 13)); - X1 = _mm_xor_si128(X1, _mm_srli_epi32(T, 19)); - T = _mm_add_epi32(X1, X2); - X0 = _mm_xor_si128(X0, _mm_slli_epi32(T, 18)); - X0 = _mm_xor_si128(X0, _mm_srli_epi32(T, 14)); - - /* Rearrange data. */ - X1 = _mm_shuffle_epi32(X1, 0x39); - X2 = _mm_shuffle_epi32(X2, 0x4E); - X3 = _mm_shuffle_epi32(X3, 0x93); - } - - B[0] = _mm_add_epi32(B[0], X0); - B[1] = _mm_add_epi32(B[1], X1); - B[2] = _mm_add_epi32(B[2], X2); - B[3] = _mm_add_epi32(B[3], X3); -} - -/** - * blockmix_salsa8(Bin, Bout, X, r): - * Compute Bout = BlockMix_{salsa20/8, r}(Bin). The input Bin must be 128r - * bytes in length; the output Bout must also be the same size. The - * temporary space X must be 64 bytes. - */ -static void -blockmix_salsa8(__m128i * Bin, __m128i * Bout, __m128i * X, size_t r) -{ - size_t i; - - /* 1: X <-- B_{2r - 1} */ - blkcpy(X, &Bin[8 * r - 4], 64); - - /* 2: for i = 0 to 2r - 1 do */ - for (i = 0; i < r; i++) { - /* 3: X <-- H(X \xor B_i) */ - blkxor(X, &Bin[i * 8], 64); - salsa20_8(X); - - /* 4: Y_i <-- X */ - /* 6: B' <-- (Y_0, Y_2 ... Y_{2r-2}, Y_1, Y_3 ... Y_{2r-1}) */ - blkcpy(&Bout[i * 4], X, 64); - - /* 3: X <-- H(X \xor B_i) */ - blkxor(X, &Bin[i * 8 + 4], 64); - salsa20_8(X); - - /* 4: Y_i <-- X */ - /* 6: B' <-- (Y_0, Y_2 ... Y_{2r-2}, Y_1, Y_3 ... Y_{2r-1}) */ - blkcpy(&Bout[(r + i) * 4], X, 64); - } -} - -/** - * integerify(B, r): - * Return the result of parsing B_{2r-1} as a little-endian integer. - */ -static uint64_t -integerify(void * B, size_t r) -{ - uint32_t * X = (void *)((uintptr_t)(B) + (2 * r - 1) * 64); - - return (((uint64_t)(X[13]) << 32) + X[0]); -} - -/** - * smix(B, r, N, V, XY): - * Compute B = SMix_r(B, N). The input B must be 128r bytes in length; - * the temporary storage V must be 128rN bytes in length; the temporary - * storage XY must be 256r + 64 bytes in length. The value N must be a - * power of 2 greater than 1. The arrays B, V, and XY must be aligned to a - * multiple of 64 bytes. - */ -static void -smix(uint8_t * B, size_t r, uint64_t N, void * V, void * XY) -{ - __m128i * X = XY; - __m128i * Y = (void *)((uintptr_t)(XY) + 128 * r); - __m128i * Z = (void *)((uintptr_t)(XY) + 256 * r); - uint32_t * X32 = (void *)X; - uint64_t i, j; - size_t k; - - /* 1: X <-- B */ - for (k = 0; k < 2 * r; k++) { - for (i = 0; i < 16; i++) { - X32[k * 16 + i] = - le32dec(&B[(k * 16 + (i * 5 % 16)) * 4]); - } - } - - /* 2: for i = 0 to N - 1 do */ - for (i = 0; i < N; i += 2) { - /* 3: V_i <-- X */ - blkcpy((void *)((uintptr_t)(V) + i * 128 * r), X, 128 * r); - - /* 4: X <-- H(X) */ - blockmix_salsa8(X, Y, Z, r); - - /* 3: V_i <-- X */ - blkcpy((void *)((uintptr_t)(V) + (i + 1) * 128 * r), - Y, 128 * r); - - /* 4: X <-- H(X) */ - blockmix_salsa8(Y, X, Z, r); - } - - /* 6: for i = 0 to N - 1 do */ - for (i = 0; i < N; i += 2) { - /* 7: j <-- Integerify(X) mod N */ - j = integerify(X, r) & (N - 1); - - /* 8: X <-- H(X \xor V_j) */ - blkxor(X, (void *)((uintptr_t)(V) + j * 128 * r), 128 * r); - blockmix_salsa8(X, Y, Z, r); - - /* 7: j <-- Integerify(X) mod N */ - j = integerify(Y, r) & (N - 1); - - /* 8: X <-- H(X \xor V_j) */ - blkxor(Y, (void *)((uintptr_t)(V) + j * 128 * r), 128 * r); - blockmix_salsa8(Y, X, Z, r); - } - - /* 10: B' <-- X */ - for (k = 0; k < 2 * r; k++) { - for (i = 0; i < 16; i++) { - le32enc(&B[(k * 16 + (i * 5 % 16)) * 4], - X32[k * 16 + i]); - } - } -} - -/** - * crypto_scrypt(passwd, passwdlen, salt, saltlen, N, r, p, buf, buflen): - * Compute scrypt(passwd[0 .. passwdlen - 1], salt[0 .. saltlen - 1], N, r, - * p, buflen) and write the result into buf. The parameters r, p, and buflen - * must satisfy r * p < 2^30 and buflen <= (2^32 - 1) * 32. The parameter N - * must be a power of 2 greater than 1. - * - * Return 0 on success; or -1 on error. - */ -int -crypto_scrypt(const uint8_t * passwd, size_t passwdlen, - const uint8_t * salt, size_t saltlen, uint64_t N, uint32_t r, uint32_t p, - uint8_t * buf, size_t buflen) -{ - void * B0, * V0, * XY0; - uint8_t * B; - uint32_t * V; - uint32_t * XY; - uint32_t i; - - /* Sanity-check parameters. */ -#if SIZE_MAX > UINT32_MAX - if (buflen > (((uint64_t)(1) << 32) - 1) * 32) { - errno = EFBIG; - goto err0; - } -#endif - if ((uint64_t)(r) * (uint64_t)(p) >= (1 << 30)) { - errno = EFBIG; - goto err0; - } - if (((N & (N - 1)) != 0) || (N == 0)) { - errno = EINVAL; - goto err0; - } - if ((r > SIZE_MAX / 128 / p) || -#if SIZE_MAX / 256 <= UINT32_MAX - (r > (SIZE_MAX - 64) / 256) || -#endif - (N > SIZE_MAX / 128 / r)) { - errno = ENOMEM; - goto err0; - } - - /* Allocate memory. */ -#ifdef HAVE_POSIX_MEMALIGN - if ((errno = posix_memalign(&B0, 64, 128 * r * p)) != 0) - goto err0; - B = (uint8_t *)(B0); - if ((errno = posix_memalign(&XY0, 64, 256 * r + 64)) != 0) - goto err1; - XY = (uint32_t *)(XY0); -#ifndef MAP_ANON - if ((errno = posix_memalign(&V0, 64, 128 * r * N)) != 0) - goto err2; - V = (uint32_t *)(V0); -#endif -#else - if ((B0 = malloc(128 * r * p + 63)) == NULL) - goto err0; - B = (uint8_t *)(((uintptr_t)(B0) + 63) & ~ (uintptr_t)(63)); - if ((XY0 = malloc(256 * r + 64 + 63)) == NULL) - goto err1; - XY = (uint32_t *)(((uintptr_t)(XY0) + 63) & ~ (uintptr_t)(63)); -#ifndef MAP_ANON - if ((V0 = malloc(128 * r * N + 63)) == NULL) - goto err2; - V = (uint32_t *)(((uintptr_t)(V0) + 63) & ~ (uintptr_t)(63)); -#endif -#endif -#ifdef MAP_ANON - if ((V0 = mmap(NULL, 128 * r * N, PROT_READ | PROT_WRITE, -#ifdef MAP_NOCORE - MAP_ANON | MAP_PRIVATE | MAP_NOCORE, -#else - MAP_ANON | MAP_PRIVATE, -#endif - -1, 0)) == MAP_FAILED) - goto err2; - V = (uint32_t *)(V0); -#endif - - /* 1: (B_0 ... B_{p-1}) <-- PBKDF2(P, S, 1, p * MFLen) */ - PBKDF2_SHA256(passwd, passwdlen, salt, saltlen, 1, B, p * 128 * r); - - /* 2: for i = 0 to p - 1 do */ - for (i = 0; i < p; i++) { - /* 3: B_i <-- MF(B_i, N) */ - smix(&B[i * 128 * r], r, N, V, XY); - } - - /* 5: DK <-- PBKDF2(P, B, 1, dkLen) */ - PBKDF2_SHA256(passwd, passwdlen, B, p * 128 * r, 1, buf, buflen); - - /* Free memory. */ -#ifdef MAP_ANON - if (munmap(V0, 128 * r * N)) - goto err2; -#else - free(V0); -#endif - free(XY0); - free(B0); - - /* Success! */ - return (0); - -err2: - free(XY0); -err1: - free(B0); -err0: - /* Failure! */ - return (-1); -} diff --git a/lib/crypto/crypto_scrypt.h b/lib/crypto/crypto_scrypt.h deleted file mode 100644 index f72e1f4..0000000 --- a/lib/crypto/crypto_scrypt.h +++ /dev/null @@ -1,46 +0,0 @@ -/*- - * Copyright 2009 Colin Percival - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This file was originally written by Colin Percival as part of the Tarsnap - * online backup system. - */ -#ifndef _CRYPTO_SCRYPT_H_ -#define _CRYPTO_SCRYPT_H_ - -#include - -/** - * crypto_scrypt(passwd, passwdlen, salt, saltlen, N, r, p, buf, buflen): - * Compute scrypt(passwd[0 .. passwdlen - 1], salt[0 .. saltlen - 1], N, r, - * p, buflen) and write the result into buf. The parameters r, p, and buflen - * must satisfy r * p < 2^30 and buflen <= (2^32 - 1) * 32. The parameter N - * must be a power of 2 greater than 1. - * - * Return 0 on success; or -1 on error. - */ -int crypto_scrypt(const uint8_t *, size_t, const uint8_t *, size_t, uint64_t, - uint32_t, uint32_t, uint8_t *, size_t); - -#endif /* !_CRYPTO_SCRYPT_H_ */ diff --git a/lib/crypto/sha256.c b/lib/crypto/sha256.c deleted file mode 100644 index 52148a3..0000000 --- a/lib/crypto/sha256.c +++ /dev/null @@ -1,412 +0,0 @@ -/*- - * Copyright 2005,2007,2009 Colin Percival - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ -#include "scrypt_platform.h" - -#include - -#include -#include - -#include "sysendian.h" - -#include "sha256.h" - -/* - * Encode a length len/4 vector of (uint32_t) into a length len vector of - * (unsigned char) in big-endian form. Assumes len is a multiple of 4. - */ -static void -be32enc_vect(unsigned char *dst, const uint32_t *src, size_t len) -{ - size_t i; - - for (i = 0; i < len / 4; i++) - be32enc(dst + i * 4, src[i]); -} - -/* - * Decode a big-endian length len vector of (unsigned char) into a length - * len/4 vector of (uint32_t). Assumes len is a multiple of 4. - */ -static void -be32dec_vect(uint32_t *dst, const unsigned char *src, size_t len) -{ - size_t i; - - for (i = 0; i < len / 4; i++) - dst[i] = be32dec(src + i * 4); -} - -/* Elementary functions used by SHA256 */ -#define Ch(x, y, z) ((x & (y ^ z)) ^ z) -#define Maj(x, y, z) ((x & (y | z)) | (y & z)) -#define SHR(x, n) (x >> n) -#define ROTR(x, n) ((x >> n) | (x << (32 - n))) -#define S0(x) (ROTR(x, 2) ^ ROTR(x, 13) ^ ROTR(x, 22)) -#define S1(x) (ROTR(x, 6) ^ ROTR(x, 11) ^ ROTR(x, 25)) -#define s0(x) (ROTR(x, 7) ^ ROTR(x, 18) ^ SHR(x, 3)) -#define s1(x) (ROTR(x, 17) ^ ROTR(x, 19) ^ SHR(x, 10)) - -/* SHA256 round function */ -#define RND(a, b, c, d, e, f, g, h, k) \ - t0 = h + S1(e) + Ch(e, f, g) + k; \ - t1 = S0(a) + Maj(a, b, c); \ - d += t0; \ - h = t0 + t1; - -/* Adjusted round function for rotating state */ -#define RNDr(S, W, i, k) \ - RND(S[(64 - i) % 8], S[(65 - i) % 8], \ - S[(66 - i) % 8], S[(67 - i) % 8], \ - S[(68 - i) % 8], S[(69 - i) % 8], \ - S[(70 - i) % 8], S[(71 - i) % 8], \ - W[i] + k) - -/* - * SHA256 block compression function. The 256-bit state is transformed via - * the 512-bit input block to produce a new state. - */ -static void -SHA256_Transform(uint32_t * state, const unsigned char block[64]) -{ - uint32_t W[64]; - uint32_t S[8]; - uint32_t t0, t1; - int i; - - /* 1. Prepare message schedule W. */ - be32dec_vect(W, block, 64); - for (i = 16; i < 64; i++) - W[i] = s1(W[i - 2]) + W[i - 7] + s0(W[i - 15]) + W[i - 16]; - - /* 2. Initialize working variables. */ - memcpy(S, state, 32); - - /* 3. Mix. */ - RNDr(S, W, 0, 0x428a2f98); - RNDr(S, W, 1, 0x71374491); - RNDr(S, W, 2, 0xb5c0fbcf); - RNDr(S, W, 3, 0xe9b5dba5); - RNDr(S, W, 4, 0x3956c25b); - RNDr(S, W, 5, 0x59f111f1); - RNDr(S, W, 6, 0x923f82a4); - RNDr(S, W, 7, 0xab1c5ed5); - RNDr(S, W, 8, 0xd807aa98); - RNDr(S, W, 9, 0x12835b01); - RNDr(S, W, 10, 0x243185be); - RNDr(S, W, 11, 0x550c7dc3); - RNDr(S, W, 12, 0x72be5d74); - RNDr(S, W, 13, 0x80deb1fe); - RNDr(S, W, 14, 0x9bdc06a7); - RNDr(S, W, 15, 0xc19bf174); - RNDr(S, W, 16, 0xe49b69c1); - RNDr(S, W, 17, 0xefbe4786); - RNDr(S, W, 18, 0x0fc19dc6); - RNDr(S, W, 19, 0x240ca1cc); - RNDr(S, W, 20, 0x2de92c6f); - RNDr(S, W, 21, 0x4a7484aa); - RNDr(S, W, 22, 0x5cb0a9dc); - RNDr(S, W, 23, 0x76f988da); - RNDr(S, W, 24, 0x983e5152); - RNDr(S, W, 25, 0xa831c66d); - RNDr(S, W, 26, 0xb00327c8); - RNDr(S, W, 27, 0xbf597fc7); - RNDr(S, W, 28, 0xc6e00bf3); - RNDr(S, W, 29, 0xd5a79147); - RNDr(S, W, 30, 0x06ca6351); - RNDr(S, W, 31, 0x14292967); - RNDr(S, W, 32, 0x27b70a85); - RNDr(S, W, 33, 0x2e1b2138); - RNDr(S, W, 34, 0x4d2c6dfc); - RNDr(S, W, 35, 0x53380d13); - RNDr(S, W, 36, 0x650a7354); - RNDr(S, W, 37, 0x766a0abb); - RNDr(S, W, 38, 0x81c2c92e); - RNDr(S, W, 39, 0x92722c85); - RNDr(S, W, 40, 0xa2bfe8a1); - RNDr(S, W, 41, 0xa81a664b); - RNDr(S, W, 42, 0xc24b8b70); - RNDr(S, W, 43, 0xc76c51a3); - RNDr(S, W, 44, 0xd192e819); - RNDr(S, W, 45, 0xd6990624); - RNDr(S, W, 46, 0xf40e3585); - RNDr(S, W, 47, 0x106aa070); - RNDr(S, W, 48, 0x19a4c116); - RNDr(S, W, 49, 0x1e376c08); - RNDr(S, W, 50, 0x2748774c); - RNDr(S, W, 51, 0x34b0bcb5); - RNDr(S, W, 52, 0x391c0cb3); - RNDr(S, W, 53, 0x4ed8aa4a); - RNDr(S, W, 54, 0x5b9cca4f); - RNDr(S, W, 55, 0x682e6ff3); - RNDr(S, W, 56, 0x748f82ee); - RNDr(S, W, 57, 0x78a5636f); - RNDr(S, W, 58, 0x84c87814); - RNDr(S, W, 59, 0x8cc70208); - RNDr(S, W, 60, 0x90befffa); - RNDr(S, W, 61, 0xa4506ceb); - RNDr(S, W, 62, 0xbef9a3f7); - RNDr(S, W, 63, 0xc67178f2); - - /* 4. Mix local working variables into global state */ - for (i = 0; i < 8; i++) - state[i] += S[i]; - - /* Clean the stack. */ - memset(W, 0, 256); - memset(S, 0, 32); - t0 = t1 = 0; -} - -static unsigned char PAD[64] = { - 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 -}; - -/* Add padding and terminating bit-count. */ -static void -SHA256_Pad(SHA256_CTX * ctx) -{ - unsigned char len[8]; - uint32_t r, plen; - - /* - * Convert length to a vector of bytes -- we do this now rather - * than later because the length will change after we pad. - */ - be32enc_vect(len, ctx->count, 8); - - /* Add 1--64 bytes so that the resulting length is 56 mod 64 */ - r = (ctx->count[1] >> 3) & 0x3f; - plen = (r < 56) ? (56 - r) : (120 - r); - SHA256_Update(ctx, PAD, (size_t)plen); - - /* Add the terminating bit-count */ - SHA256_Update(ctx, len, 8); -} - -/* SHA-256 initialization. Begins a SHA-256 operation. */ -void -SHA256_Init(SHA256_CTX * ctx) -{ - - /* Zero bits processed so far */ - ctx->count[0] = ctx->count[1] = 0; - - /* Magic initialization constants */ - ctx->state[0] = 0x6A09E667; - ctx->state[1] = 0xBB67AE85; - ctx->state[2] = 0x3C6EF372; - ctx->state[3] = 0xA54FF53A; - ctx->state[4] = 0x510E527F; - ctx->state[5] = 0x9B05688C; - ctx->state[6] = 0x1F83D9AB; - ctx->state[7] = 0x5BE0CD19; -} - -/* Add bytes into the hash */ -void -SHA256_Update(SHA256_CTX * ctx, const void *in, size_t len) -{ - uint32_t bitlen[2]; - uint32_t r; - const unsigned char *src = in; - - /* Number of bytes left in the buffer from previous updates */ - r = (ctx->count[1] >> 3) & 0x3f; - - /* Convert the length into a number of bits */ - bitlen[1] = ((uint32_t)len) << 3; - bitlen[0] = (uint32_t)(len >> 29); - - /* Update number of bits */ - if ((ctx->count[1] += bitlen[1]) < bitlen[1]) - ctx->count[0]++; - ctx->count[0] += bitlen[0]; - - /* Handle the case where we don't need to perform any transforms */ - if (len < 64 - r) { - memcpy(&ctx->buf[r], src, len); - return; - } - - /* Finish the current block */ - memcpy(&ctx->buf[r], src, 64 - r); - SHA256_Transform(ctx->state, ctx->buf); - src += 64 - r; - len -= 64 - r; - - /* Perform complete blocks */ - while (len >= 64) { - SHA256_Transform(ctx->state, src); - src += 64; - len -= 64; - } - - /* Copy left over data into buffer */ - memcpy(ctx->buf, src, len); -} - -/* - * SHA-256 finalization. Pads the input data, exports the hash value, - * and clears the context state. - */ -void -SHA256_Final(unsigned char digest[32], SHA256_CTX * ctx) -{ - - /* Add padding */ - SHA256_Pad(ctx); - - /* Write the hash */ - be32enc_vect(digest, ctx->state, 32); - - /* Clear the context state */ - memset((void *)ctx, 0, sizeof(*ctx)); -} - -/* Initialize an HMAC-SHA256 operation with the given key. */ -void -HMAC_SHA256_Init(HMAC_SHA256_CTX * ctx, const void * _K, size_t Klen) -{ - unsigned char pad[64]; - unsigned char khash[32]; - const unsigned char * K = _K; - size_t i; - - /* If Klen > 64, the key is really SHA256(K). */ - if (Klen > 64) { - SHA256_Init(&ctx->ictx); - SHA256_Update(&ctx->ictx, K, Klen); - SHA256_Final(khash, &ctx->ictx); - K = khash; - Klen = 32; - } - - /* Inner SHA256 operation is SHA256(K xor [block of 0x36] || data). */ - SHA256_Init(&ctx->ictx); - memset(pad, 0x36, 64); - for (i = 0; i < Klen; i++) - pad[i] ^= K[i]; - SHA256_Update(&ctx->ictx, pad, 64); - - /* Outer SHA256 operation is SHA256(K xor [block of 0x5c] || hash). */ - SHA256_Init(&ctx->octx); - memset(pad, 0x5c, 64); - for (i = 0; i < Klen; i++) - pad[i] ^= K[i]; - SHA256_Update(&ctx->octx, pad, 64); - - /* Clean the stack. */ - memset(khash, 0, 32); -} - -/* Add bytes to the HMAC-SHA256 operation. */ -void -HMAC_SHA256_Update(HMAC_SHA256_CTX * ctx, const void *in, size_t len) -{ - - /* Feed data to the inner SHA256 operation. */ - SHA256_Update(&ctx->ictx, in, len); -} - -/* Finish an HMAC-SHA256 operation. */ -void -HMAC_SHA256_Final(unsigned char digest[32], HMAC_SHA256_CTX * ctx) -{ - unsigned char ihash[32]; - - /* Finish the inner SHA256 operation. */ - SHA256_Final(ihash, &ctx->ictx); - - /* Feed the inner hash to the outer SHA256 operation. */ - SHA256_Update(&ctx->octx, ihash, 32); - - /* Finish the outer SHA256 operation. */ - SHA256_Final(digest, &ctx->octx); - - /* Clean the stack. */ - memset(ihash, 0, 32); -} - -/** - * PBKDF2_SHA256(passwd, passwdlen, salt, saltlen, c, buf, dkLen): - * Compute PBKDF2(passwd, salt, c, dkLen) using HMAC-SHA256 as the PRF, and - * write the output to buf. The value dkLen must be at most 32 * (2^32 - 1). - */ -void -PBKDF2_SHA256(const uint8_t * passwd, size_t passwdlen, const uint8_t * salt, - size_t saltlen, uint64_t c, uint8_t * buf, size_t dkLen) -{ - HMAC_SHA256_CTX PShctx, hctx; - size_t i; - uint8_t ivec[4]; - uint8_t U[32]; - uint8_t T[32]; - uint64_t j; - int k; - size_t clen; - - /* Compute HMAC state after processing P and S. */ - HMAC_SHA256_Init(&PShctx, passwd, passwdlen); - HMAC_SHA256_Update(&PShctx, salt, saltlen); - - /* Iterate through the blocks. */ - for (i = 0; i * 32 < dkLen; i++) { - /* Generate INT(i + 1). */ - be32enc(ivec, (uint32_t)(i + 1)); - - /* Compute U_1 = PRF(P, S || INT(i)). */ - memcpy(&hctx, &PShctx, sizeof(HMAC_SHA256_CTX)); - HMAC_SHA256_Update(&hctx, ivec, 4); - HMAC_SHA256_Final(U, &hctx); - - /* T_i = U_1 ... */ - memcpy(T, U, 32); - - for (j = 2; j <= c; j++) { - /* Compute U_j. */ - HMAC_SHA256_Init(&hctx, passwd, passwdlen); - HMAC_SHA256_Update(&hctx, U, 32); - HMAC_SHA256_Final(U, &hctx); - - /* ... xor U_j ... */ - for (k = 0; k < 32; k++) - T[k] ^= U[k]; - } - - /* Copy as many bytes as necessary into buf. */ - clen = dkLen - i * 32; - if (clen > 32) - clen = 32; - memcpy(&buf[i * 32], T, clen); - } - - /* Clean PShctx, since we never called _Final on it. */ - memset(&PShctx, 0, sizeof(HMAC_SHA256_CTX)); -} diff --git a/lib/crypto/sha256.h b/lib/crypto/sha256.h deleted file mode 100644 index 289a523..0000000 --- a/lib/crypto/sha256.h +++ /dev/null @@ -1,62 +0,0 @@ -/*- - * Copyright 2005,2007,2009 Colin Percival - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD: src/lib/libmd/sha256.h,v 1.2 2006/01/17 15:35:56 phk Exp $ - */ - -#ifndef _SHA256_H_ -#define _SHA256_H_ - -#include - -#include - -typedef struct SHA256Context { - uint32_t state[8]; - uint32_t count[2]; - unsigned char buf[64]; -} SHA256_CTX; - -typedef struct HMAC_SHA256Context { - SHA256_CTX ictx; - SHA256_CTX octx; -} HMAC_SHA256_CTX; - -void SHA256_Init(SHA256_CTX *); -void SHA256_Update(SHA256_CTX *, const void *, size_t); -void SHA256_Final(unsigned char [32], SHA256_CTX *); -void HMAC_SHA256_Init(HMAC_SHA256_CTX *, const void *, size_t); -void HMAC_SHA256_Update(HMAC_SHA256_CTX *, const void *, size_t); -void HMAC_SHA256_Final(unsigned char [32], HMAC_SHA256_CTX *); - -/** - * PBKDF2_SHA256(passwd, passwdlen, salt, saltlen, c, buf, dkLen): - * Compute PBKDF2(passwd, salt, c, dkLen) using HMAC-SHA256 as the PRF, and - * write the output to buf. The value dkLen must be at most 32 * (2^32 - 1). - */ -void PBKDF2_SHA256(const uint8_t *, size_t, const uint8_t *, size_t, - uint64_t, uint8_t *, size_t); - -#endif /* !_SHA256_H_ */ diff --git a/lib/genpass/genpass.c b/lib/genpass/genpass.c deleted file mode 100644 index 39c9a81..0000000 --- a/lib/genpass/genpass.c +++ /dev/null @@ -1,207 +0,0 @@ -/*- - * Copyright 2009 Colin Percival - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This file was originally written by Colin Percival as part of the Tarsnap - * online backup system. - */ -#include "scrypt_platform.h" - -#include -#include -#include -#include -#include -#include -#include - -#include - -#include "crypto_scrypt.h" -#include "sha256.h" -#include "sysendian.h" - -#include "genpass.h" - -#define ENCBLOCK 65536 -#define MEGA (1024*1024) - -static int pickparams(uint32_t, uint32_t, - int *, uint32_t *, uint32_t *); -static int checkparams(uint32_t, uint32_t, int, uint32_t, uint32_t); -static int getsalt(uint8_t[32], char* site, bool verbose); - -static int -pickparams(uint32_t maxmem, uint32_t megaops, - int * logN, uint32_t * r, uint32_t * p) -{ - size_t memlimit; - double opps; - double opslimit; - double maxN, maxrp; - int rc; - - /* Figure out how much memory to use. */ - memlimit = MEGA * maxmem; - opslimit = MEGA * megaops; - - /* Fix r = 8 for now. */ - *r = 8; - - /* - * The memory limit requires that 128Nr <= memlimit, while the CPU - * limit requires that 4Nrp <= opslimit. If opslimit < memlimit/32, - * opslimit imposes the stronger limit on N. - */ -#ifdef DEBUG - fprintf(stderr, "Requiring 128Nr <= %zu, 4Nrp <= %f\n", - memlimit, opslimit); -#endif - if (opslimit < memlimit/32) { - /* Set p = 1 and choose N based on the CPU limit. */ - *p = 1; - maxN = opslimit / (*r * 4); - for (*logN = 1; *logN < 63; *logN += 1) { - if ((uint64_t)(1) << *logN > maxN / 2) - break; - } - } else { - /* Set N based on the memory limit. */ - maxN = memlimit / (*r * 128); - for (*logN = 1; *logN < 63; *logN += 1) { - if ((uint64_t)(1) << *logN > maxN / 2) - break; - } - - /* Choose p based on the CPU limit. */ - maxrp = (opslimit / 4) / ((uint64_t)(1) << *logN); - if (maxrp > 0x3fffffff) - maxrp = 0x3fffffff; - *p = (uint32_t)(maxrp) / *r; - } - -#ifdef DEBUG - fprintf(stderr, "N = %zu r = %d p = %d\n", - (size_t)(1) << *logN, (int)(*r), (int)(*p)); -#endif - - /* Success! */ - return (0); -} - -static int -checkparams(uint32_t maxmem, uint32_t megaops, - int logN, uint32_t r, uint32_t p) -{ - size_t memlimit; - double opps; - double opslimit; - uint64_t N; - int rc; - - /* Figure out the maximum amount of memory we can use. */ - memlimit = 1000000 * maxmem; - - opslimit = 1000000 * megaops; - - /* Sanity-check values. */ - if ((logN < 1) || (logN > 63)) - return (7); - if ((uint64_t)(r) * (uint64_t)(p) >= 0x40000000) - return (7); - - /* Check limits. */ - N = (uint64_t)(1) << logN; - if ((memlimit / N) / r < 128) - return (9); - if ((opslimit / N) / (r * p) < 4) - return (10); - - /* Success! */ - return (0); -} - -int -bintohex(char* outstring, size_t nbytes, uint8_t* data) -{ - int i; - for (i = 0; i < nbytes; i++) - sprintf(outstring + 2 * i, "%02x", data[i]); - outstring[2 * nbytes] = '\0'; - return 0; -} - -void -sha256string(uint8_t hash[32], uint8_t* s, int n) -{ - SHA256_CTX sha256_ctx; - SHA256_Init(&sha256_ctx); - SHA256_Update(&sha256_ctx, (void*) s, n); - SHA256_Final(hash, &sha256_ctx); -} - -static int -getsalt(uint8_t salt[32], char* site, bool verbose) -{ - sha256string(salt, (uint8_t*) site, strlen(site)); - if (verbose) { - char buf[65]; - bintohex(buf, 32, salt); - printf("Site hex: %s\n", buf); - } - return (0); -} - -int -genpass(uint8_t dk[64], sg_parms_t *sg_parms) -{ - uint8_t salt[32]; - uint8_t hbuf[32]; - int logN; - uint64_t N; - uint32_t r; - uint32_t p; - SHA256_CTX ctx; - uint8_t * key_hmac = &dk[32]; - HMAC_SHA256_CTX hctx; - int rc; - - /* Pick values for N, r, p. */ - if ((rc = pickparams(sg_parms->maxmem, sg_parms->megaops, - &logN, &r, &p)) != 0) - return (rc); - N = (uint64_t)(1) << logN; - - /* Get some salt using the site. */ - if ((rc = getsalt(salt, sg_parms->site, sg_parms->verbose)) != 0) - return (rc); - - /* Generate the derived keys. */ - if (crypto_scrypt(sg_parms->passwd, sg_parms->passwdlen, salt, 32, N, r, p, - dk, 64)) - return (3); - - /* Success! */ - return (0); -} diff --git a/lib/genpass/genpass.h b/lib/genpass/genpass.h deleted file mode 100644 index 119be42..0000000 --- a/lib/genpass/genpass.h +++ /dev/null @@ -1,93 +0,0 @@ -/*- - * Copyright 2009 Colin Percival - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This file was originally written by Colin Percival as part of the Tarsnap - * online backup system. - */ -#ifndef _GENPASS_H_ -#define _GENPASS_H_ - -#include -#include -#include - -/** - * The parameters maxmem, maxmemfrac, and maxtime used by all of these - * functions are defined as follows: - * maxmem - maximum number of bytes of storage to use for V array (which is - * by far the largest consumer of memory). If this value is set to 0, no - * maximum will be enforced; any other value less than 1 MiB will be - * treated as 1 MiB. - * maxmemfrac - maximum fraction of available storage to use for the V array, - * where "available storage" is defined as the minimum out of the - * RLIMIT_AS, RLIMIT_DATA. and RLIMIT_RSS resource limits (if any are - * set). If this value is set to 0 or more than 0.5 it will be treated - * as 0.5; and this value will never cause a limit of less than 1 MiB to - * be enforced. - * maxtime - maximum amount of CPU time to spend computing the derived keys, - * in seconds. This limit is only approximately enforced; the CPU - * performance is estimated and parameter limits are chosen accordingly. - * For the encryption functions, the parameters to the scrypt key derivation - * function are chosen to make the key as strong as possible subject to the - * specified limits; for the decryption functions, the parameters used are - * compared to the computed limits and an error is returned if decrypting - * the data would take too much memory or CPU time. - */ -/** - * Return codes from scrypt(enc|dec)_(buf|file): - * 0 success - * 1 getrlimit or sysctl(hw.usermem) failed - * 2 clock_getres or clock_gettime failed - * 3 error computing derived key - * 4 could not read salt from /dev/urandom - * 5 error in OpenSSL - * 6 malloc failed - * 7 data is not a valid scrypt-encrypted block - * 8 unrecognized scrypt format - * 9 decrypting file would take too much memory - * 10 decrypting file would take too long - * 11 password is incorrect - * 12 error writing output file - * 13 error reading input file - */ -int bintohex(char* outstring, size_t nbytes, uint8_t* data); - -void sha256string(uint8_t* hash, uint8_t* s, int n); - -typedef struct { - char* keyfile; - uint32_t maxmem; - uint32_t megaops; - int numbers_only; - size_t outputlength; - uint8_t* passwd; - size_t passwdlen; - char* site; - bool verbose; -} sg_parms_t, *sg_parms_ptr; - -int genpass(uint8_t dk[64], sg_parms_t *sg_parms); - -#endif /* !_GENPASS_H_ */ diff --git a/lib/util/hashtopass.c b/lib/util/hashtopass.c deleted file mode 100644 index 1b43037..0000000 --- a/lib/util/hashtopass.c +++ /dev/null @@ -1,30 +0,0 @@ -#include "hashtopass.h" - -void hashtopass(int numbers_only, char* p, size_t len, uint8_t* key) -{ - int i; - char* numerals = "0123456789"; - - if (numbers_only) { - - for (i = 0; i < len; i++) - p[i] = numerals[key[i] % 10]; - - } else { - - char* lowers = "abcdefghijklmnopqrstuvwxyz"; - char* uppers = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; - char* allchars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; - - p[0] = lowers[key[0] % 26]; - p[1] = numerals[key[1] % 10]; - p[2] = uppers[key[2] % 26]; - - size_t i; - for (i = 3; i < len; i++) - p[i] = allchars[key[i] % (26 + 26 + 10)]; - } - - p[len] = '\0'; - -} \ No newline at end of file diff --git a/lib/util/hashtopass.h b/lib/util/hashtopass.h deleted file mode 100644 index 45e1d55..0000000 --- a/lib/util/hashtopass.h +++ /dev/null @@ -1,12 +0,0 @@ -#include "scrypt_platform.h" - -#include -#include -#include -#include -#include -#include - -#include "warn.h" - -void hashtopass(int numbers_only, char* p, size_t len, uint8_t* key); \ No newline at end of file diff --git a/lib/util/readpass.c b/lib/util/readpass.c deleted file mode 100644 index d74759c..0000000 --- a/lib/util/readpass.c +++ /dev/null @@ -1,143 +0,0 @@ -/*- - * Copyright 2009 Colin Percival - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ -#include "scrypt_platform.h" - -#include -#include -#include -#include -#include - -#include "warn.h" - -#include "readpass.h" - -#define MAXPASSLEN 2048 - -/** - * tarsnap_getpass(passwd, prompt, confirmprompt, devtty) - * If ${devtty} is non-zero, read a password from /dev/tty if possible; if - * not, read from stdin. If reading from a tty (either /dev/tty or stdin), - * disable echo and prompt the user by printing ${prompt} to stderr. If - * ${confirmprompt} is non-NULL, read a second password (prompting if a - * terminal is being used) and repeat until the user enters the same password - * twice. Return the password as a malloced NUL-terminated string via - * ${passwd}. The obscure name is to avoid namespace collisions due to the - * getpass / readpass / readpassphrase / etc. functions in various libraries. - */ -int -tarsnap_readpass(char ** passwd, const char * prompt, - const char * confirmprompt, int devtty) -{ - FILE * readfrom; - char passbuf[MAXPASSLEN]; - char confpassbuf[MAXPASSLEN]; - struct termios term, term_old; - int usingtty; - - /* - * If devtty != 0, try to open /dev/tty; if that fails, or if devtty - * is zero, we'll read the password from stdin instead. - */ - if ((devtty == 0) || ((readfrom = fopen("/dev/tty", "r")) == NULL)) - readfrom = stdin; - - /* If we're reading from a terminal, try to disable echo. */ - if ((usingtty = isatty(fileno(readfrom))) != 0) { - if (tcgetattr(fileno(readfrom), &term_old)) { - warn("Cannot read terminal settings"); - goto err1; - } - memcpy(&term, &term_old, sizeof(struct termios)); - term.c_lflag = (term.c_lflag & ~ECHO) | ECHONL; - if (tcsetattr(fileno(readfrom), TCSANOW, &term)) { - warn("Cannot set terminal settings"); - goto err1; - } - } - -retry: - /* If we have a terminal, prompt the user to enter the password. */ - if (usingtty) - fprintf(stderr, "%s: ", prompt); - - /* Read the password. */ - if (fgets(passbuf, MAXPASSLEN, readfrom) == NULL) { - warn("Cannot read password"); - goto err2; - } - - /* Confirm the password if necessary. */ - if (confirmprompt != NULL) { - if (usingtty) - fprintf(stderr, "%s: ", confirmprompt); - if (fgets(confpassbuf, MAXPASSLEN, readfrom) == NULL) { - warn("Cannot read password"); - goto err2; - } - if (strcmp(passbuf, confpassbuf)) { - fprintf(stderr, - "Passwords mismatch, please try again\n"); - goto retry; - } - } - - /* Terminate the string at the first "\r" or "\n" (if any). */ - passbuf[strcspn(passbuf, "\r\n")] = '\0'; - - /* If we changed terminal settings, reset them. */ - if (usingtty) - tcsetattr(fileno(readfrom), TCSANOW, &term_old); - - /* Close /dev/tty if we opened it. */ - if (readfrom != stdin) - fclose(readfrom); - - /* Copy the password out. */ - if ((*passwd = strdup(passbuf)) == NULL) { - warn("Cannot allocate memory"); - goto err1; - } - - /* Zero any stored passwords. */ - memset(passbuf, 0, MAXPASSLEN); - memset(confpassbuf, 0, MAXPASSLEN); - - /* Success! */ - return (0); - -err2: - /* Reset terminal settings if necessary. */ - if (usingtty) - tcsetattr(fileno(readfrom), TCSAFLUSH, &term_old); -err1: - /* Close /dev/tty if we opened it. */ - if (readfrom != stdin) - fclose(readfrom); - - /* Failure! */ - return (-1); -} diff --git a/lib/util/readpass.h b/lib/util/readpass.h deleted file mode 100644 index da57278..0000000 --- a/lib/util/readpass.h +++ /dev/null @@ -1,45 +0,0 @@ -/*- - * Copyright 2009 Colin Percival - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This file was originally written by Colin Percival as part of the Tarsnap - * online backup system. - */ -#ifndef _READPASS_H_ -#define _READPASS_H_ - -/** - * tarsnap_getpass(passwd, prompt, confirmprompt, devtty) - * If ${devtty} is non-zero, read a password from /dev/tty if possible; if - * not, read from stdin. If reading from a tty (either /dev/tty or stdin), - * disable echo and prompt the user by printing ${prompt} to stderr. If - * ${confirmprompt} is non-NULL, read a second password (prompting if a - * terminal is being used) and repeat until the user enters the same password - * twice. Return the password as a malloced NUL-terminated string via - * ${passwd}. The obscure name is to avoid namespace collisions due to the - * getpass / readpass / readpassphrase / etc. functions in various libraries. - */ -int tarsnap_readpass(char **, const char *, const char *, int); - -#endif /* !_READPASS_H_ */ diff --git a/lib/util/sysendian.h b/lib/util/sysendian.h deleted file mode 100644 index bf63f7f..0000000 --- a/lib/util/sysendian.h +++ /dev/null @@ -1,140 +0,0 @@ -/*- - * Copyright 2007-2009 Colin Percival - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This file was originally written by Colin Percival as part of the Tarsnap - * online backup system. - */ -#ifndef _SYSENDIAN_H_ -#define _SYSENDIAN_H_ - -#include "scrypt_platform.h" - -/* If we don't have be64enc, the we have isn't usable. */ -#if !HAVE_DECL_BE64ENC -#undef HAVE_SYS_ENDIAN_H -#endif - -#ifdef HAVE_SYS_ENDIAN_H - -#include - -#else - -#include - -static inline uint32_t -be32dec(const void *pp) -{ - const uint8_t *p = (uint8_t const *)pp; - - return ((uint32_t)(p[3]) + ((uint32_t)(p[2]) << 8) + - ((uint32_t)(p[1]) << 16) + ((uint32_t)(p[0]) << 24)); -} - -static inline void -be32enc(void *pp, uint32_t x) -{ - uint8_t * p = (uint8_t *)pp; - - p[3] = x & 0xff; - p[2] = (x >> 8) & 0xff; - p[1] = (x >> 16) & 0xff; - p[0] = (x >> 24) & 0xff; -} - -static inline uint64_t -be64dec(const void *pp) -{ - const uint8_t *p = (uint8_t const *)pp; - - return ((uint64_t)(p[7]) + ((uint64_t)(p[6]) << 8) + - ((uint64_t)(p[5]) << 16) + ((uint64_t)(p[4]) << 24) + - ((uint64_t)(p[3]) << 32) + ((uint64_t)(p[2]) << 40) + - ((uint64_t)(p[1]) << 48) + ((uint64_t)(p[0]) << 56)); -} - -static inline void -be64enc(void *pp, uint64_t x) -{ - uint8_t * p = (uint8_t *)pp; - - p[7] = x & 0xff; - p[6] = (x >> 8) & 0xff; - p[5] = (x >> 16) & 0xff; - p[4] = (x >> 24) & 0xff; - p[3] = (x >> 32) & 0xff; - p[2] = (x >> 40) & 0xff; - p[1] = (x >> 48) & 0xff; - p[0] = (x >> 56) & 0xff; -} - -static inline uint32_t -le32dec(const void *pp) -{ - const uint8_t *p = (uint8_t const *)pp; - - return ((uint32_t)(p[0]) + ((uint32_t)(p[1]) << 8) + - ((uint32_t)(p[2]) << 16) + ((uint32_t)(p[3]) << 24)); -} - -static inline void -le32enc(void *pp, uint32_t x) -{ - uint8_t * p = (uint8_t *)pp; - - p[0] = x & 0xff; - p[1] = (x >> 8) & 0xff; - p[2] = (x >> 16) & 0xff; - p[3] = (x >> 24) & 0xff; -} - -static inline uint64_t -le64dec(const void *pp) -{ - const uint8_t *p = (uint8_t const *)pp; - - return ((uint64_t)(p[0]) + ((uint64_t)(p[1]) << 8) + - ((uint64_t)(p[2]) << 16) + ((uint64_t)(p[3]) << 24) + - ((uint64_t)(p[4]) << 32) + ((uint64_t)(p[5]) << 40) + - ((uint64_t)(p[6]) << 48) + ((uint64_t)(p[7]) << 56)); -} - -static inline void -le64enc(void *pp, uint64_t x) -{ - uint8_t * p = (uint8_t *)pp; - - p[0] = x & 0xff; - p[1] = (x >> 8) & 0xff; - p[2] = (x >> 16) & 0xff; - p[3] = (x >> 24) & 0xff; - p[4] = (x >> 32) & 0xff; - p[5] = (x >> 40) & 0xff; - p[6] = (x >> 48) & 0xff; - p[7] = (x >> 56) & 0xff; -} -#endif /* !HAVE_SYS_ENDIAN_H */ - -#endif /* !_SYSENDIAN_H_ */ diff --git a/lib/util/warn.c b/lib/util/warn.c deleted file mode 100644 index fbec015..0000000 --- a/lib/util/warn.c +++ /dev/null @@ -1,75 +0,0 @@ -/*- - * Copyright 2009 Colin Percival - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This file was originally written by Colin Percival as part of the Tarsnap - * online backup system. - */ -#include "scrypt_platform.h" - -#ifdef HAVE_ERR_H -/* - * Everything is provided through err.h and the associated library, so we - * don't need to do anything here. - */ -#else -#include -#include -#include -#include - -#include "warn.h" - -const char * warn_progname = "(null)"; - -void -warn(const char * fmt, ...) -{ - va_list ap; - - va_start(ap, fmt); - fprintf(stderr, "%s", warn_progname); - if (fmt != NULL) { - fprintf(stderr, ": "); - vfprintf(stderr, fmt, ap); - } - fprintf(stderr, ": %s\n", strerror(errno)); - va_end(ap); -} - -void -warnx(const char * fmt, ...) -{ - va_list ap; - - va_start(ap, fmt); - fprintf(stderr, "%s", warn_progname); - if (fmt != NULL) { - fprintf(stderr, ": "); - vfprintf(stderr, fmt, ap); - } - fprintf(stderr, "\n"); - va_end(ap); -} -#endif diff --git a/lib/util/warn.h b/lib/util/warn.h deleted file mode 100644 index 262d24b..0000000 --- a/lib/util/warn.h +++ /dev/null @@ -1,13 +0,0 @@ -#ifndef _WARN_H_ -#define _WARN_H_ - -#ifdef HAVE_ERR_H -#include -#else -#define NEED_WARN_PROGNAME -const char * warn_progname; -void warn(const char *, ...); -void warnx(const char *, ...); -#endif - -#endif /* !_WARN_H_ */ diff --git a/main.c b/main.c deleted file mode 100644 index ce9aeb1..0000000 --- a/main.c +++ /dev/null @@ -1,275 +0,0 @@ -/*- - * Copyright 2009 Colin Percival - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ -#include "scrypt_platform.h" - -#include -#include -#include -#include -#include -#include - -#include "readpass.h" -#include "genpass.h" -#include "warn.h" - -static void -usage(void) -{ - - fprintf(stderr, - "Usage: scrypt-genpass [-l LEN] [-m MAXMEM] [-n] [-o MAXOPS] [-k KEYFILE]\n"); - fprintf(stderr, - " [-p PASS] [-r] [-v] \n"); - fprintf(stderr, - " scrypt-genpass -t\n"); - fprintf(stderr, - "\nFor documentation, see https://github.com/chrisoei/scrypt-genpass/wiki\n\n"); - fprintf(stderr, "Commit hash: %s\n", SGVERSION); - exit(1); -} - -void unit_tests() -{ - if (sizeof(char)!=1) { - fprintf(stderr, "sizeof(char) != 1\n"); - exit(1); - } - - uint8_t testhash[32]; - sha256string(testhash, (uint8_t*) "abc", 3); - char testbuf[65]; - bintohex(testbuf, 32, testhash); - if (strcmp(testbuf, - "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad")) { - fprintf(stderr, "SHA256 test failed\n"); - exit(1); - } - - fprintf(stderr, "All internal tests pass\n"); - exit(0); -} - -void init_parms(sg_parms_ptr p) -{ - p->passwdlen = 0; - p->outputlength = 16; - p->maxmem = 1000; - p->megaops = 32; - p->keyfile = NULL; - p->passwd = NULL; - p->numbers_only = 0; - p->verbose = 0; -} - -int -main(int argc, char *argv[]) -{ - sg_parms_t sg_parms; - - char ch; - int rc; - bool repeat = false; - -#ifdef NEED_WARN_PROGNAME - warn_progname = "scrypt-genpass"; -#endif - - if (argc < 1) - usage(); - - init_parms(&sg_parms); - /* Parse arguments. */ - while ((ch = getopt(argc, argv, "htk:l:m:no:p:rv")) != -1) { - switch (ch) { - case 'k': - sg_parms.keyfile = strdup(optarg); - break; - case 'l': - sg_parms.outputlength = atoi(optarg); - break; - case 'm': - sg_parms.maxmem = atoi(optarg); - break; - case 'n': - sg_parms.numbers_only++; - break; - case 'o': - sg_parms.megaops = atoi(optarg); - break; - case 'p': - sg_parms.passwd = strdup(optarg); - break; - case 't': - unit_tests(); - break; - case 'r': - repeat = true; - break; - case 'v': - sg_parms.verbose = 1; - break; - default: - usage(); - } - } - argc -= optind; - argv += optind; - - /* We must have one parameters left. */ - if (argc != 1) - usage(); - - if (!sg_parms.passwd) { - /* Prompt for a password. */ - if (tarsnap_readpass((char**)&(sg_parms.passwd), "Please enter passphrase", - (repeat ? "Please repeat passphrase" : NULL), 1)) - exit(1); - } - sg_parms.passwdlen = strlen(sg_parms.passwd); - - if (sg_parms.keyfile) { - FILE *fp; - size_t keyfilelen; - - fp = fopen(sg_parms.keyfile, "rb"); - if (fp) { - fseek(fp, 0, SEEK_END); - keyfilelen = ftell(fp); - fseek(fp, 0, SEEK_SET); - uint8_t* combinedkey = malloc(sg_parms.passwdlen + keyfilelen + 1); - if (combinedkey) { - strcpy(combinedkey, sg_parms.passwd); - memset(sg_parms.passwd, 0, sg_parms.passwdlen); - free(sg_parms.passwd); - size_t n = fread(combinedkey + sg_parms.passwdlen, keyfilelen, 1, fp); - fclose(fp); - if (n != 1) { - warnx("Unable to read keyfile"); - exit(1); - } - sg_parms.passwd = combinedkey; - sg_parms.passwdlen += keyfilelen; - } else { - warnx("Unable to allocate memory for combined key"); - exit(1); - } - } else { - warn("Unable to open keyfile %s", sg_parms.keyfile); - exit(1); - } - } - - uint8_t passhash[32]; - sha256string(passhash, sg_parms.passwd, sg_parms.passwdlen); - if (sg_parms.verbose) { - char buf1[65]; - bintohex(buf1, 32, passhash); - printf("Master hex: %s\n", buf1); - memset(buf1, 0, 65); - } - - uint8_t dk[64]; - sg_parms.site = *argv; - rc = genpass(dk, &sg_parms); - - /* Zero and free the password. */ - memset(sg_parms.passwd, 0, sg_parms.passwdlen); - free(sg_parms.passwd); - free(sg_parms.keyfile); - - if (sg_parms.verbose) { - char buf[129]; - bintohex(buf, 64, dk); - printf("Pass hex: %s\n", buf); - memset(buf, 0, 129); - } - - if ((sg_parms.outputlength < 3)||(sg_parms.outputlength > 64)) { - warn("Unable to generate password for output length %lu", sg_parms.outputlength); - exit(1); - } - - char output[sg_parms.outputlength + 1]; - hashtopass(sg_parms.numbers_only, output, sg_parms.outputlength, dk); - printf((sg_parms.verbose ? "Generated password: %s\n" : "%s\n"), output); - memset(output, 0, sg_parms.outputlength + 1); - - /* If we failed, print the right error message and exit. */ - if (rc != 0) { - switch (rc) { - case 1: - warn("Error determining amount of available memory"); - break; - case 2: - warn("Error reading clocks"); - break; - case 3: - warn("Error computing derived key"); - break; - case 4: - warn("Error reading salt"); - break; - case 5: - warn("OpenSSL error"); - break; - case 6: - warn("Error allocating memory"); - break; - case 7: - warnx("Input is not valid scrypt-encrypted block"); - break; - case 8: - warnx("Unrecognized scrypt format version"); - break; - case 9: - warnx("Decrypting file would require too much memory"); - break; - case 10: - warnx("Decrypting file would take too much CPU time"); - break; - case 11: - warnx("Passphrase is incorrect"); - break; - case 12: - warn("Error writing file: %s", - (argc > 1) ? argv[1] : "standard output"); - break; - case 13: - warn("Error reading file: %s", argv[0]); - break; - case 14: - warn("Unable to open keyfile: %s", sg_parms.keyfile); - break; - case 15: - warn("Unable to allocate memory for combined key"); - break; - } - exit(1); - } - - return (0); -} diff --git a/scrypt.1 b/scrypt.1 deleted file mode 100644 index c0d432e..0000000 --- a/scrypt.1 +++ /dev/null @@ -1,114 +0,0 @@ -.\" Copyright 2009 Colin Percival -.\" All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.Dd May 24, 2009 -.Dt SCRYPT 1 -.Os -.Sh NAME -.Nm scrypt -.Nd encrypt and decrypt files. -.Sh SYNOPSIS -.Nm -.Brq Cm enc | Cm dec -.Op Fl M Ar maxmem -.Op Fl m Ar maxmemfrac -.Op Fl t Ar maxtime -.Ar infile -.Op Ar outfile -.Sh DESCRIPTION -.Nm Cm enc -encrypts -.Ar infile -and writes the result to -.Ar outfile -if specified, or the standard output otherwise. -The user will be prompted to enter a passphrase (twice) to -be used to generate a derived encryption key. -.Pp -.Nm Cm dec -decrypts -.Ar infile -and writes the result to -.Ar outfile -if specified, or the standard output otherwise. -The user will be prompted to enter the passphrase used at -encryption time to generate the derived encryption key. -.Sh OPTIONS -.Bl -tag -width "-m maxmemfrac" -.It Fl M Ar maxmem -Use at most -.Ar maxmem -bytes of RAM to compute the derived encryption key. -.It Fl m Ar maxmemfrac -Use at most the fraction -.Ar maxmemfrac -of the available RAM to compute the derived encryption key. -.It Fl t Ar maxtime -Usr at most -.Ar maxtime -seconds of CPU time to compute the derived encryption key. -.El -In -.Nm Cm enc , -the memory and CPU time limits are enforced by picking -appropriate parameters to the -.Nm -key derivation function. -In -.Nm Cm dec , -the memory and CPU time limits are enforced by exiting with -an error if decrypting the file would require too much memory -or CPU time. -.Sh EXIT STATUS -The -.Nm -utility exits 0 on success, and >0 if an error occurs. -.Pp -Note that if the input encrypted file is corrupted, -.Nm Cm dec -may produce output prior to determining that the input -was corrupt and exiting with a non-zero status; so -users should direct the output to a safe location and -check the exit status of -.Nm -before using the decrypted data. -.Sh SEE ALSO -.Rs -.%A "Colin Percival" -.%T "Stronger Key Derivation via Sequential Memory-Hard Functions" -.%O "Presented at BSDCan'09" -.%D "May 2009" -.Re -.Sh HISTORY -The -.Nm -utility was written in May 2009 by Colin Percival as a -demonstration of the -.Nm -key derivation function. -The -.Nm -key derivation function was invented in March 2009 by Colin -Percival in order to allow key files from the -.Nm tarsnap -backup system to be passphrase protected. diff --git a/scrypt_platform.h b/scrypt_platform.h deleted file mode 100644 index 5cec236..0000000 --- a/scrypt_platform.h +++ /dev/null @@ -1,12 +0,0 @@ -#ifndef _SCRYPT_PLATFORM_H_ -#define _SCRYPT_PLATFORM_H_ - -#if defined(CONFIG_H_FILE) -#include CONFIG_H_FILE -#elif defined(HAVE_CONFIG_H) -#include "config.h" -#else -#error Need either CONFIG_H_FILE or HAVE_CONFIG_H defined. -#endif - -#endif /* !_SCRYPT_PLATFORM_H_ */ diff --git a/test/keyfile1.dat b/test/keyfile1.dat deleted file mode 100644 index 0c00383..0000000 --- a/test/keyfile1.dat +++ /dev/null @@ -1 +0,0 @@ -def \ No newline at end of file diff --git a/test/test.bash b/test/test.bash deleted file mode 100755 index 257a6d7..0000000 --- a/test/test.bash +++ /dev/null @@ -1,15 +0,0 @@ -#!/bin/bash - -PROG=./scrypt-genpass -RESULTS=test/test_results.log - -$PROG -t > $RESULTS 2>&1 -($PROG -h |grep -v Version)>> $RESULTS 2>&1 -$PROG -v -p b a >> $RESULTS 2>&1 -$PROG -v -k test/keyfile1.dat -p abc ghi >> $RESULTS 2>&1 -$PROG -v -l 2 -p a a >> $RESULTS 2>&1 -$PROG -v -l 65 -p a a >> $RESULTS 2>&1 -$PROG -v -l 64 -p a a >> $RESULTS 2>&1 -$PROG -v -n -l 4 -p "Speak, friend, and enter." "The Doors of Durin" >> $RESULTS 2>&1 - -diff $RESULTS test/test_results.reference diff --git a/test/test_results.reference b/test/test_results.reference deleted file mode 100644 index 7f5b33f..0000000 --- a/test/test_results.reference +++ /dev/null @@ -1,28 +0,0 @@ -All internal tests pass -usage: scrypt-genpass [-l LEN] [-m MAXMEM] [-n] [-o MAXOPS] [-k KEYFILE] [-p PASS] - scrypt-genpass -t -Version: 3194765 -Master hex: 3e23e8160039594a33894f6564e1b1348bbd7a0088d42c4acb73eeaed59c009d -Site hex: ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb -Pass hex: 0160b45a147d0a0f5b6976a7ab698554a41c06c5f77cc9d77b06304265d1646fdc8e3119474748778ab3b68a39d0a67b3a92b41a8ddb45d4bb6ebec20a5f4a57 -Generated password: b6YCubkpDR4RVRjw -Master hex: bef57ec7f53a6d40beb640a780a639c83bc29ac8a9816f1fc6c5c6dcd93c4721 -Site hex: 50ae61e841fac4e8f9e40baf2ad36ec868922ea48368c18f9535e47db56dd7fb -Pass hex: a46a99d8d0ed2388d48cc3ddd33efe0b635790176c4f84387c0b02b589d2db9703db2fa3d41d5ee1d670ba0ddd1cfd1520a0d1a7394db5ff5eaa8b290aa80ebd -Generated password: i6XEwZJmAqjJzagl -scrypt-genpass: Unable to generate password for output length 2: Undefined error: 0 -Master hex: ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb -Site hex: ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb -Pass hex: ae0abc722d2db07ab1b70e7be8de90967ef1bbcf8d06a5213b74edb51cee9392da7488beecf6296b94bf0ec807b0ebd6e652fbb7aa909e25d2c10b8fe60b7c20 -scrypt-genpass: Unable to generate password for output length 65: Undefined error: 0 -Master hex: ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb -Site hex: ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb -Pass hex: ae0abc722d2db07ab1b70e7be8de90967ef1bbcf8d06a5213b74edb51cee9392da7488beecf6296b94bf0ec807b0ebd6e652fbb7aa909e25d2c10b8fe60b7c20 -Master hex: ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb -Site hex: ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb -Pass hex: ae0abc722d2db07ab1b70e7be8de90967ef1bbcf8d06a5213b74edb51cee9392da7488beecf6296b94bf0ec807b0ebd6e652fbb7aa909e25d2c10b8fe60b7c20 -Generated password: s0G0TT0817o9UKuAc3bvrgPH72Z5C0xwG2meY8PTyfooh0XCSud7UuILyhltSlaG -Master hex: 319c8c993599782ea06a815ece43de8920a4d36e03ab85855b4bab96311b9ba6 -Site hex: 9dec4c078ad50db0b21292d0c72bb0fc20326ea766ed358340c6b22f79615e88 -Pass hex: e54a789bb7ed4859377275dac479cd72e69f8510018c6ad1cd05750fd406b1d3de9e3eb68637c4bdb2ea4cd0c5b8598a179c3e5c8022beec9bb4e53ee4e09794 -Generated password: 9405