diff options
Diffstat (limited to 'modules/encryption/enc_bcrypt.cpp')
| -rw-r--r-- | modules/encryption/enc_bcrypt.cpp | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/modules/encryption/enc_bcrypt.cpp b/modules/encryption/enc_bcrypt.cpp index 9c17bc022..a3918f7c4 100644 --- a/modules/encryption/enc_bcrypt.cpp +++ b/modules/encryption/enc_bcrypt.cpp @@ -7,23 +7,23 @@ * details. * * Most of the code in this file is taken from - * https://www.openwall.com/crypt/crypt_blowfish-1.2.tar.gz + * https://www.openwall.com/crypt/crypt_blowfish-1.3.tar.gz */ /* * The crypt_blowfish homepage is: * - * https://www.openwall.com/crypt/ + * http://www.openwall.com/crypt/ * * This code comes from John the Ripper password cracker, with reentrant * and crypt(3) interfaces added, but optimizations specific to password * cracking removed. * - * Written by Solar Designer <solar at openwall.com> in 1998-2011. + * Written by Solar Designer <solar at openwall.com> in 1998-2014. * No copyright is claimed, and the software is hereby placed in the public * domain. In case this attempt to disclaim copyright and place the software * in the public domain is deemed null and void, then the software is - * Copyright (c) 1998-2011 Solar Designer and it is hereby released to the + * Copyright (c) 1998-2014 Solar Designer and it is hereby released to the * general public under the following terms: * * Redistribution and use in source and binary forms, with or without @@ -39,16 +39,16 @@ * you place this code and any modifications you make under a license * of your choice. * - * This implementation is mostly compatible with OpenBSD's bcrypt.c (prefix - * "$2a$") by Niels Provos <provos at citi.umich.edu>, and uses some of his - * ideas. The password hashing algorithm was designed by David Mazieres - * <dm at lcs.mit.edu>. For more information on the level of compatibility, - * prefer refer to the comments in BF_set_key() below and to the included - * crypt(3) man page. + * This implementation is fully compatible with OpenBSD's bcrypt.c for prefix + * "$2b$", originally by Niels Provos <provos at citi.umich.edu>, and it uses + * some of his ideas. The password hashing algorithm was designed by David + * Mazieres <dm at lcs.mit.edu>. For information on the level of + * compatibility for bcrypt hash prefixes other than "$2b$", please refer to + * the comments in BF_set_key() below and to the included crypt(3) man page. * * There's a paper on the algorithm that explains its design decisions: * - * https://www.usenix.org/legacy/events/usenix99/provos.html + * http://www.usenix.org/events/usenix99/provos.html * * Some of the tricks in BF_ROUND might be inspired by Eric Young's * Blowfish library (I can't be sure if I would think of something if I @@ -574,6 +574,7 @@ static void BF_set_key(const char *key, BF_key expanded, BF_key initial, * Valid combinations of settings are: * * Prefix "$2a$": bug = 0, safety = 0x10000 + * Prefix "$2b$": bug = 0, safety = 0 * Prefix "$2x$": bug = 1, safety = 0 * Prefix "$2y$": bug = 0, safety = 0 */ @@ -637,13 +638,14 @@ static void BF_set_key(const char *key, BF_key expanded, BF_key initial, initial[0] ^= sign; } +static const unsigned char flags_by_subtype[26] = + {2, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 4, 0}; + static char *BF_crypt(const char *key, const char *setting, char *output, int size, BF_word min) { - static const unsigned char flags_by_subtype[26] = - {2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 4, 0}; struct { BF_ctx ctx; BF_key expanded_key; @@ -814,7 +816,7 @@ char *_crypt_gensalt_blowfish_rn(const char *prefix, unsigned long count, if (size < 16 || output_size < 7 + 22 + 1 || (count && (count < 4 || count > 31)) || prefix[0] != '$' || prefix[1] != '2' || - (prefix[2] != 'a' && prefix[2] != 'y')) { + (prefix[2] != 'a' && prefix[2] != 'b' && prefix[2] != 'y')) { if (output_size > 0) output[0] = '\0'; return NULL; } |