/* algorithms.c - the algorithms supported by the rhash library * * Copyright (c) 2011, Aleksey Kravchenko * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR * PERFORMANCE OF THIS SOFTWARE. */ #include "algorithms.h" #include "byte_order.h" #include "rhash.h" /* header files of all supported hash functions */ #if 0 #include "aich.h" #include "blake2b.h" #include "blake2s.h" #include "crc32.h" #include "ed2k.h" #include "edonr.h" #include "gost12.h" #include "gost94.h" #include "has160.h" #include "md4.h" #endif #include "md5.h" #if 0 #include "ripemd-160.h" #include "snefru.h" #endif #include "sha1.h" #include "sha256.h" #include "sha512.h" #include "sha3.h" #if 0 #include "tiger.h" #include "tth.h" #include "whirlpool.h" #endif #ifdef USE_OPENSSL # include "plug_openssl.h" #endif /* USE_OPENSSL */ #include #ifdef USE_OPENSSL /* note: BTIH and AICH depends on the used SHA1 algorithm */ # define NEED_OPENSSL_INIT (RHASH_MD4 | RHASH_MD5 | \ RHASH_SHA1 | RHASH_SHA224 | RHASH_SHA256 | RHASH_SHA384 | RHASH_SHA512 | \ RHASH_BTIH | RHASH_AICH | RHASH_RIPEMD160 | RHASH_WHIRLPOOL) #else # define NEED_OPENSSL_INIT 0 #endif /* USE_OPENSSL */ #ifdef GENERATE_GOST94_LOOKUP_TABLE # define NEED_GOST94_INIT (RHASH_GOST94 | RHASH_GOST94_CRYPTOPRO) #else # define NEED_GOST94_INIT 0 #endif /* GENERATE_GOST94_LOOKUP_TABLE */ #define RHASH_NEED_INIT_ALG (NEED_GOST94_INIT | NEED_OPENSSL_INIT) unsigned rhash_uninitialized_algorithms = RHASH_NEED_INIT_ALG; rhash_hash_info* rhash_info_table = rhash_hash_info_default; int rhash_info_size = RHASH_HASH_COUNT; #if 0 static void rhash_crc32_init(uint32_t* crc32); static void rhash_crc32_update(uint32_t* crc32, const unsigned char* msg, size_t size); static void rhash_crc32_final(uint32_t* crc32, unsigned char* result); static void rhash_crc32c_init(uint32_t* crc32); static void rhash_crc32c_update(uint32_t* crc32, const unsigned char* msg, size_t size); static void rhash_crc32c_final(uint32_t* crc32, unsigned char* result); #endif #if 0 rhash_info info_crc32 = { RHASH_CRC32, F_BE32, 4, "CRC32", "crc32" }; rhash_info info_crc32c = { RHASH_CRC32C, F_BE32, 4, "CRC32C", "crc32c" }; rhash_info info_md4 = { RHASH_MD4, F_LE32, 16, "MD4", "md4" }; #endif rhash_info info_md5 = { RHASH_MD5, F_LE32, 16, "MD5", "md5" }; rhash_info info_sha1 = { RHASH_SHA1, F_BE32, 20, "SHA1", "sha1" }; #if 0 rhash_info info_tiger = { RHASH_TIGER, F_LE64, 24, "TIGER", "tiger" }; rhash_info info_tth = { RHASH_TTH, F_BS32 | F_SPCEXP, 24, "TTH", "tree:tiger" }; rhash_info info_btih = { RHASH_BTIH, F_SPCEXP, 20, "BTIH", "btih" }; rhash_info info_ed2k = { RHASH_ED2K, F_LE32, 16, "ED2K", "ed2k" }; rhash_info info_aich = { RHASH_AICH, F_BS32 | F_SPCEXP, 20, "AICH", "aich" }; rhash_info info_whirlpool = { RHASH_WHIRLPOOL, F_BE64, 64, "WHIRLPOOL", "whirlpool" }; rhash_info info_rmd160 = { RHASH_RIPEMD160, F_LE32, 20, "RIPEMD-160", "ripemd160" }; rhash_info info_gost12_256 = { RHASH_GOST12_256, F_LE64, 32, "GOST12-256", "gost12-256" }; rhash_info info_gost12_512 = { RHASH_GOST12_512, F_LE64, 64, "GOST12-512", "gost12-512" }; rhash_info info_gost94 = { RHASH_GOST94, F_LE32, 32, "GOST94", "gost94" }; rhash_info info_gost94pro = { RHASH_GOST94_CRYPTOPRO, F_LE32, 32, "GOST94-CRYPTOPRO", "gost94-cryptopro" }; rhash_info info_has160 = { RHASH_HAS160, F_LE32, 20, "HAS-160", "has160" }; rhash_info info_snf128 = { RHASH_SNEFRU128, F_BE32, 16, "SNEFRU-128", "snefru128" }; rhash_info info_snf256 = { RHASH_SNEFRU256, F_BE32, 32, "SNEFRU-256", "snefru256" }; #endif rhash_info info_sha224 = { RHASH_SHA224, F_BE32, 28, "SHA-224", "sha224" }; rhash_info info_sha256 = { RHASH_SHA256, F_BE32, 32, "SHA-256", "sha256" }; rhash_info info_sha384 = { RHASH_SHA384, F_BE64, 48, "SHA-384", "sha384" }; rhash_info info_sha512 = { RHASH_SHA512, F_BE64, 64, "SHA-512", "sha512" }; #if 0 rhash_info info_edr256 = { RHASH_EDONR256, F_LE32, 32, "EDON-R256", "edon-r256" }; rhash_info info_edr512 = { RHASH_EDONR512, F_LE64, 64, "EDON-R512", "edon-r512" }; rhash_info info_blake2s = { RHASH_BLAKE2S, F_LE32, 32, "BLAKE2S", "blake2s" }; rhash_info info_blake2b = { RHASH_BLAKE2B, F_LE64, 64, "BLAKE2B", "blake2b" }; #endif rhash_info info_sha3_224 = { RHASH_SHA3_224, F_LE64, 28, "SHA3-224", "sha3-224" }; rhash_info info_sha3_256 = { RHASH_SHA3_256, F_LE64, 32, "SHA3-256", "sha3-256" }; rhash_info info_sha3_384 = { RHASH_SHA3_384, F_LE64, 48, "SHA3-384", "sha3-384" }; rhash_info info_sha3_512 = { RHASH_SHA3_512, F_LE64, 64, "SHA3-512", "sha3-512" }; /* some helper macros */ #define dgshft(name) ((uintptr_t)((char*)&((name##_ctx*)0)->hash)) #define dgshft2(name, field) ((uintptr_t)((char*)&((name##_ctx*)0)->field)) #define ini(name) ((pinit_t)(name##_init)) #define upd(name) ((pupdate_t)(name##_update)) #define fin(name) ((pfinal_t)(name##_final)) #define iuf(name) ini(name), upd(name), fin(name) #define iuf2(name1, name2) ini(name1), upd(name2), fin(name2) /* information about all supported hash functions */ rhash_hash_info rhash_hash_info_default[RHASH_HASH_COUNT] = { #if 0 { &info_crc32, sizeof(uint32_t), 0, iuf(rhash_crc32), 0 }, /* 32 bit */ { &info_md4, sizeof(md4_ctx), dgshft(md4), iuf(rhash_md4), 0 }, /* 128 bit */ #endif { &info_md5, sizeof(md5_ctx), dgshft(md5), iuf(rhash_md5), 0 }, /* 128 bit */ { &info_sha1, sizeof(sha1_ctx), dgshft(sha1), iuf(rhash_sha1), 0 }, /* 160 bit */ #if 0 { &info_tiger, sizeof(tiger_ctx), dgshft(tiger), iuf(rhash_tiger), 0 }, /* 192 bit */ { &info_tth, sizeof(tth_ctx), dgshft2(tth, tiger.hash), iuf(rhash_tth), 0 }, /* 192 bit */ { &info_ed2k, sizeof(ed2k_ctx), dgshft2(ed2k, md4_context_inner.hash), iuf(rhash_ed2k), 0 }, /* 128 bit */ { &info_aich, sizeof(aich_ctx), dgshft2(aich, sha1_context.hash), iuf(rhash_aich), (pcleanup_t)rhash_aich_cleanup }, /* 160 bit */ { &info_whirlpool, sizeof(whirlpool_ctx), dgshft(whirlpool), iuf(rhash_whirlpool), 0 }, /* 512 bit */ { &info_rmd160, sizeof(ripemd160_ctx), dgshft(ripemd160), iuf(rhash_ripemd160), 0 }, /* 160 bit */ { &info_gost94, sizeof(gost94_ctx), dgshft(gost94), iuf(rhash_gost94), 0 }, /* 256 bit */ { &info_gost94pro, sizeof(gost94_ctx), dgshft(gost94), iuf2(rhash_gost94_cryptopro, rhash_gost94), 0 }, /* 256 bit */ { &info_has160, sizeof(has160_ctx), dgshft(has160), iuf(rhash_has160), 0 }, /* 160 bit */ { &info_gost12_256, sizeof(gost12_ctx), dgshft2(gost12, h) + 32, iuf2(rhash_gost12_256, rhash_gost12), 0 }, /* 256 bit */ { &info_gost12_512, sizeof(gost12_ctx), dgshft2(gost12, h), iuf2(rhash_gost12_512, rhash_gost12), 0 }, /* 512 bit */ #endif { &info_sha224, sizeof(sha256_ctx), dgshft(sha256), iuf2(rhash_sha224, rhash_sha256), 0 }, /* 224 bit */ { &info_sha256, sizeof(sha256_ctx), dgshft(sha256), iuf(rhash_sha256), 0 }, /* 256 bit */ { &info_sha384, sizeof(sha512_ctx), dgshft(sha512), iuf2(rhash_sha384, rhash_sha512), 0 }, /* 384 bit */ { &info_sha512, sizeof(sha512_ctx), dgshft(sha512), iuf(rhash_sha512), 0 }, /* 512 bit */ #if 0 { &info_edr256, sizeof(edonr_ctx), dgshft2(edonr, u.data256.hash) + 32, iuf(rhash_edonr256), 0 }, /* 256 bit */ { &info_edr512, sizeof(edonr_ctx), dgshft2(edonr, u.data512.hash) + 64, iuf(rhash_edonr512), 0 }, /* 512 bit */ #endif { &info_sha3_224, sizeof(sha3_ctx), dgshft(sha3), iuf2(rhash_sha3_224, rhash_sha3), 0 }, /* 224 bit */ { &info_sha3_256, sizeof(sha3_ctx), dgshft(sha3), iuf2(rhash_sha3_256, rhash_sha3), 0 }, /* 256 bit */ { &info_sha3_384, sizeof(sha3_ctx), dgshft(sha3), iuf2(rhash_sha3_384, rhash_sha3), 0 }, /* 384 bit */ { &info_sha3_512, sizeof(sha3_ctx), dgshft(sha3), iuf2(rhash_sha3_512, rhash_sha3), 0 }, /* 512 bit */ #if 0 { &info_crc32c, sizeof(uint32_t), 0, iuf(rhash_crc32c), 0 }, /* 32 bit */ { &info_snf128, sizeof(snefru_ctx), dgshft(snefru), iuf2(rhash_snefru128, rhash_snefru), 0 }, /* 128 bit */ { &info_snf256, sizeof(snefru_ctx), dgshft(snefru), iuf2(rhash_snefru256, rhash_snefru), 0 }, /* 256 bit */ { &info_blake2s, sizeof(blake2s_ctx), dgshft(blake2s), iuf(rhash_blake2s), 0 }, /* 256 bit */ { &info_blake2b, sizeof(blake2b_ctx), dgshft(blake2b), iuf(rhash_blake2b), 0 }, /* 512 bit */ #endif }; /** * Initialize requested algorithms. * * @param mask ids of hash sums to initialize */ void rhash_init_algorithms(unsigned mask) { (void)mask; /* unused now */ /* verify that RHASH_HASH_COUNT is the index of the major bit of RHASH_ALL_HASHES */ assert(1 == (RHASH_ALL_HASHES >> (RHASH_HASH_COUNT - 1))); #ifdef GENERATE_GOST94_LOOKUP_TABLE rhash_gost94_init_table(); #endif rhash_uninitialized_algorithms = 0; } /** * Returns information about a hash function by its hash_id. * * @param hash_id the id of hash algorithm * @return pointer to the rhash_info structure containing the information */ const rhash_info* rhash_info_by_id(unsigned hash_id) { hash_id &= RHASH_ALL_HASHES; /* check that one and only one bit is set */ if (!hash_id || (hash_id & (hash_id - 1)) != 0) return NULL; return rhash_info_table[rhash_ctz(hash_id)].info; } #if 0 /* CRC32 helper functions */ /** * Initialize crc32 hash. * * @param crc32 pointer to the hash to initialize */ static void rhash_crc32_init(uint32_t* crc32) { *crc32 = 0; /* note: context size is sizeof(uint32_t) */ } /** * Calculate message CRC32 hash. * Can be called repeatedly with chunks of the message to be hashed. * * @param crc32 pointer to the hash * @param msg message chunk * @param size length of the message chunk */ static void rhash_crc32_update(uint32_t* crc32, const unsigned char* msg, size_t size) { *crc32 = rhash_get_crc32(*crc32, msg, size); } /** * Store calculated hash into the given array. * * @param crc32 pointer to the current hash value * @param result calculated hash in binary form */ static void rhash_crc32_final(uint32_t* crc32, unsigned char* result) { #if defined(CPU_IA32) || defined(CPU_X64) /* intel CPUs support assigment with non 32-bit aligned pointers */ *(unsigned*)result = be2me_32(*crc32); #else /* correct saving BigEndian integer on all archs */ result[0] = (unsigned char)(*crc32 >> 24), result[1] = (unsigned char)(*crc32 >> 16); result[2] = (unsigned char)(*crc32 >> 8), result[3] = (unsigned char)(*crc32); #endif } /** * Initialize crc32c hash. * * @param crc32c pointer to the hash to initialize */ static void rhash_crc32c_init(uint32_t* crc32c) { *crc32c = 0; /* note: context size is sizeof(uint32_t) */ } /** * Calculate message CRC32C hash. * Can be called repeatedly with chunks of the message to be hashed. * * @param crc32c pointer to the hash * @param msg message chunk * @param size length of the message chunk */ static void rhash_crc32c_update(uint32_t* crc32c, const unsigned char* msg, size_t size) { *crc32c = rhash_get_crc32c(*crc32c, msg, size); } /** * Store calculated hash into the given array. * * @param crc32c pointer to the current hash value * @param result calculated hash in binary form */ static void rhash_crc32c_final(uint32_t* crc32c, unsigned char* result) { #if defined(CPU_IA32) || defined(CPU_X64) /* intel CPUs support assigment with non 32-bit aligned pointers */ *(unsigned*)result = be2me_32(*crc32c); #else /* correct saving BigEndian integer on all archs */ result[0] = (unsigned char)(*crc32c >> 24), result[1] = (unsigned char)(*crc32c >> 16); result[2] = (unsigned char)(*crc32c >> 8), result[3] = (unsigned char)(*crc32c); #endif } #endif #if !defined(NO_IMPORT_EXPORT) /** * Export a hash function context to a memory region, * or calculate the size required for context export. * * @param hash_id identifier of the hash function * @param ctx the algorithm context containing current hashing state * @param out pointer to the memory region or NULL * @param size size of memory region * @return the size of the exported data on success, 0 on fail. */ size_t rhash_export_alg(unsigned hash_id, const void* ctx, void* out, size_t size) { switch (hash_id) { case RHASH_TTH: return rhash_tth_export((const tth_ctx*)ctx, out, size); case RHASH_AICH: return rhash_aich_export((const aich_ctx*)ctx, out, size); } return 0; } /** * Import a hash function context from a memory region. * * @param hash_id identifier of the hash function * @param ctx pointer to the algorithm context * @param in pointer to the data to import * @param size size of data to import * @return the size of the imported data on success, 0 on fail. */ size_t rhash_import_alg(unsigned hash_id, void* ctx, const void* in, size_t size) { switch (hash_id) { case RHASH_TTH: return rhash_tth_import((tth_ctx*)ctx, in, size); case RHASH_AICH: return rhash_aich_import((aich_ctx*)ctx, in, size); } return 0; } #endif /* !defined(NO_IMPORT_EXPORT) */ #ifdef USE_OPENSSL void rhash_load_sha1_methods(rhash_hashing_methods* methods, int methods_type) { int use_openssl; switch (methods_type) { case METHODS_OPENSSL: use_openssl = 1; break; case METHODS_SELECTED: assert(rhash_info_table[3].info->hash_id == RHASH_SHA1); use_openssl = ARE_OPENSSL_METHODS(rhash_info_table[3]); break; default: use_openssl = 0; break; } if (use_openssl) { methods->init = rhash_ossl_sha1_init(); methods->update = rhash_ossl_sha1_update(); methods->final = rhash_ossl_sha1_final(); } else { methods->init = (pinit_t)&rhash_sha1_init; methods->update = (pupdate_t)&rhash_sha1_update; methods->final = (pfinal_t)&rhash_sha1_final; } } #endif