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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,215 @@ | ||
| #include "php_hash_sha3.h" | ||
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|
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| #if (defined(__APPLE__) || defined(__APPLE_CC__)) && \ | ||
| (defined(__BIG_ENDIAN__) || defined(__LITTLE_ENDIAN__)) | ||
| # if defined(__LITTLE_ENDIAN__) | ||
| # undef WORDS_BIGENDIAN | ||
| # else | ||
| # if defined(__BIG_ENDIAN__) | ||
| # define WORDS_BIGENDIAN | ||
| # endif | ||
| # endif | ||
| #endif | ||
|
|
||
| inline php_hash_uint64 rol64(php_hash_uint64 v, unsigned char b) { | ||
| return (v << b) | (v >> (64 - b)); | ||
| } | ||
| inline unsigned char idx(unsigned char x, unsigned char y) { | ||
| return x + (5 * y); | ||
| } | ||
|
|
||
| #ifdef WORDS_BIGENDIAN | ||
| inline php_hash_uint64 load64(const unsigned char* x) { | ||
| php_hash_uint64 ret = 0; | ||
| for (unsigned char i = 7; i >= 0; --i) { | ||
| ret <<= 8; | ||
| ret |= x[i]; | ||
| } | ||
| return ret; | ||
| } | ||
| inline void store64(const unsigned char* x, php_hash_uint64 val) { | ||
| for (unsigned char i = 0; i < 8; ++i) { | ||
| x[i] = val & 0xFF; | ||
| val >>= 8; | ||
| } | ||
| } | ||
| inline void xor64(const unsigned char* x, php_hash_uint64 val) { | ||
| for (unsigned char i = 0; i < 8; ++i) { | ||
| x[i] ^= val & 0xFF; | ||
| val >>= 8; | ||
| } | ||
| } | ||
| # define readLane(x, y) load64(ctx->state+sizeof(php_hash_uint64)*idx(x, y)) | ||
| # define writeLane(x, y, v) store64(ctx->state+sizeof(php_hash_uint64)*idx(x, y), v) | ||
| # define XORLane(x, y, v) xor64(ctx->state+sizeof(php_hash_uint64)*idx(x, y), v) | ||
| #else | ||
| # define readLane(x, y) (((php_hash_uint64*)ctx->state)[idx(x,y)]) | ||
| # define writeLane(x, y, v) (((php_hash_uint64*)ctx->state)[idx(x,y)] = v) | ||
| # define XORLane(x, y, v) (((php_hash_uint64*)ctx->state)[idx(x,y)] ^= v) | ||
| #endif | ||
|
|
||
| inline char LFSR86540(unsigned char* pLFSR) | ||
| { | ||
| unsigned char LFSR = *pLFSR; | ||
| char result = LFSR & 0x01; | ||
| if (LFSR & 0x80) { | ||
| // Primitive polynomial over GF(2): x^8+x^6+x^5+x^4+1 | ||
| LFSR = (LFSR << 1) ^ 0x71; | ||
| } else { | ||
| LFSR <<= 1; | ||
| } | ||
| *pLFSR = LFSR; | ||
| return result; | ||
| } | ||
|
|
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| static void permute(PHP_SHA3_CTX* ctx) { | ||
| unsigned char LFSRstate = 0x01; | ||
| unsigned char round; | ||
|
|
||
| for (round = 0; round < 24; ++round) { | ||
| { // Theta step (see [Keccak Reference, Section 2.3.2]) | ||
| php_hash_uint64 C[5], D; | ||
| unsigned char x, y; | ||
| for (x = 0; x < 5; ++x) { | ||
| C[x] = readLane(x, 0) ^ readLane(x, 1) ^ | ||
| readLane(x, 2) ^ readLane(x, 3) ^ readLane(x, 4); | ||
| } | ||
| for (x = 0; x < 5; ++x) { | ||
| D = C[(x+4)%5] ^ rol64(C[(x+1)%5], 1); | ||
| for (y = 0; y < 5; ++y) { | ||
| XORLane(x, y, D); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| { // p and Pi steps (see [Keccak Reference, Sections 2.3.3 and 2.3.4]) | ||
| unsigned char x = 1, y = 0, t; | ||
| php_hash_uint64 current = readLane(x, y); | ||
| for (t = 0; t < 24; ++t) { | ||
| unsigned char r = ((t + 1) * (t + 2) / 2) % 64; | ||
| unsigned char Y = (2*x + 3*y) % 5; | ||
| x = y; y = Y; | ||
| php_hash_uint64 temp = readLane(x, y); | ||
| writeLane(x, y, rol64(current, r)); | ||
| current = temp; | ||
| } | ||
| } | ||
|
|
||
| { // X step (see [Keccak Reference, Section 2.3.1]) | ||
| unsigned char x, y; | ||
| for (y = 0; y < 5; ++y) { | ||
| php_hash_uint64 temp[5]; | ||
| for (x = 0; x < 5; ++x) { | ||
| temp[x] = readLane(x, y); | ||
| } | ||
| for (x = 0; x < 5; ++x) { | ||
| writeLane(x, y, temp[x] ^((~temp[(x+1)%5]) & temp[(x+2)%5])); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| { // i step (see [Keccak Reference, Section 2.3.5]) | ||
| unsigned char j; | ||
| for (j = 0; j < 7; ++j) { | ||
| if (LFSR86540(&LFSRstate)) { | ||
| php_hash_uint64 bitPos = (1<<j) - 1; | ||
| XORLane(0, 0, (php_hash_uint64)1 << bitPos); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // ========================================================================== | ||
|
|
||
| static void PHP_SHA3_Init(PHP_SHA3_CTX* ctx, | ||
| int bits) { | ||
| memset(ctx, 0, sizeof(PHP_SHA3_CTX)); | ||
| } | ||
|
|
||
| static void PHP_SHA3_Update(PHP_SHA3_CTX* ctx, | ||
| const unsigned char* buf, | ||
| unsigned int count, | ||
| int block_size) { | ||
| while (count > 0) { | ||
| int len = block_size - ctx->pos; | ||
| if (len > count) len = count; | ||
| count -= len; | ||
| while (len-- > 0) { | ||
| ctx->state[ctx->pos++] ^= *(buf++); | ||
| } | ||
| if (ctx->pos >= block_size) { | ||
| permute(ctx); | ||
| ctx->pos = 0; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| static void PHP_SHA3_Final(unsigned char* digest, | ||
| PHP_SHA3_CTX* ctx, | ||
| int block_size, | ||
| int digest_size) { | ||
| int len = digest_size; | ||
|
|
||
| // Pad state to finalize | ||
| ctx->state[ctx->pos++] ^= 0x06; | ||
| ctx->state[block_size-1] ^= 0x80; | ||
| permute(ctx); | ||
|
|
||
| // Square output for digest | ||
| for(;;) { | ||
| int bs = (len < block_size) ? len : block_size; | ||
| memcpy(digest, ctx->state, bs); | ||
| digest += bs; | ||
| len -= bs; | ||
| if (!len) break; | ||
| permute(ctx); | ||
| } | ||
|
|
||
| // Zero out context | ||
| memset(ctx, 0, sizeof(PHP_SHA3_CTX)); | ||
| } | ||
|
|
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| // ========================================================================== | ||
|
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| #define DECLARE_SHA3_OPS(bits) \ | ||
| void PHP_SHA3##bits##Init(PHP_SHA3_##bits##_CTX* ctx) { \ | ||
| PHP_SHA3_Init(ctx, bits); \ | ||
| } \ | ||
| void PHP_SHA3##bits##Update(PHP_SHA3_##bits##_CTX* ctx, \ | ||
| const unsigned char* input, \ | ||
| unsigned int inputLen) { \ | ||
| PHP_SHA3_Update(ctx, input, inputLen, \ | ||
| (1600 - (2 * bits)) >> 3); \ | ||
| } \ | ||
| void PHP_SHA3##bits##Final(unsigned char* digest, \ | ||
| PHP_SHA3_##bits##_CTX* ctx) { \ | ||
| PHP_SHA3_Final(digest, ctx, \ | ||
| (1600 - (2 * bits)) >> 3, \ | ||
| bits >> 3); \ | ||
| } \ | ||
| const php_hash_ops php_hash_sha3_##bits##_ops = { \ | ||
| (php_hash_init_func_t) PHP_SHA3##bits##Init, \ | ||
| (php_hash_update_func_t) PHP_SHA3##bits##Update, \ | ||
| (php_hash_final_func_t) PHP_SHA3##bits##Final, \ | ||
| php_hash_copy, \ | ||
| bits >> 3, \ | ||
| (1600 - (2 * bits)) >> 3, \ | ||
| sizeof(PHP_SHA3_##bits##_CTX) \ | ||
| } | ||
|
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| DECLARE_SHA3_OPS(224); | ||
| DECLARE_SHA3_OPS(256); | ||
| DECLARE_SHA3_OPS(384); | ||
| DECLARE_SHA3_OPS(512); | ||
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| #undef DECLARE_SHA3_OPS | ||
|
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| /* | ||
| * Local variables: | ||
| * tab-width: 4 | ||
| * c-basic-offset: 4 | ||
| * End: | ||
| * vim600: sw=4 ts=4 fdm=marker | ||
| * vim<600: sw=4 ts=4 | ||
| */ |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| /* | ||
| +----------------------------------------------------------------------+ | ||
| | PHP Version 7 | | ||
| +----------------------------------------------------------------------+ | ||
| | Copyright (c) 1997-2015 The PHP Group | | ||
| +----------------------------------------------------------------------+ | ||
| | This source file is subject to version 3.01 of the PHP license, | | ||
| | that is bundled with this package in the file LICENSE, and is | | ||
| | available through the world-wide-web at the following url: | | ||
| | http://www.php.net/license/3_01.txt | | ||
| | If you did not receive a copy of the PHP license and are unable to | | ||
| | obtain it through the world-wide-web, please send a note to | | ||
| | license@php.net so we can mail you a copy immediately. | | ||
| +----------------------------------------------------------------------+ | ||
| | Author: Sara Golemon <pollita@php.net> | | ||
| +----------------------------------------------------------------------+ | ||
| */ | ||
|
|
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| #ifndef PHP_HASH_SHA3_H | ||
| #define PHP_HASH_SHA3_H | ||
|
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| #include "php.h" | ||
| #include "ext/hash/php_hash.h" | ||
|
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| typedef struct { | ||
| unsigned char state[200]; // 5 * 5 * sizeof(uint64) | ||
| php_hash_uint32 pos; | ||
| } PHP_SHA3_CTX; | ||
|
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| typedef PHP_SHA3_CTX PHP_SHA3_224_CTX; | ||
| typedef PHP_SHA3_CTX PHP_SHA3_256_CTX; | ||
| typedef PHP_SHA3_CTX PHP_SHA3_384_CTX; | ||
| typedef PHP_SHA3_CTX PHP_SHA3_512_CTX; | ||
|
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| PHP_HASH_API void PHP_SHA3224Init(PHP_SHA3_224_CTX*); | ||
| PHP_HASH_API void PHP_SHA3224Update(PHP_SHA3_224_CTX*, const unsigned char*, unsigned int); | ||
| PHP_HASH_API void PHP_SAH3224Final(unsigned char[32], PHP_SHA3_224_CTX*); | ||
|
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| PHP_HASH_API void PHP_SHA3256Init(PHP_SHA3_256_CTX*); | ||
| PHP_HASH_API void PHP_SHA3256Update(PHP_SHA3_256_CTX*, const unsigned char*, unsigned int); | ||
| PHP_HASH_API void PHP_SAH3256Final(unsigned char[32], PHP_SHA3_256_CTX*); | ||
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| PHP_HASH_API void PHP_SHA3384Init(PHP_SHA3_384_CTX*); | ||
| PHP_HASH_API void PHP_SHA3384Update(PHP_SHA3_384_CTX*, const unsigned char*, unsigned int); | ||
| PHP_HASH_API void PHP_SAH3384Final(unsigned char[32], PHP_SHA3_384_CTX*); | ||
|
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| PHP_HASH_API void PHP_SHA3512Init(PHP_SHA3_512_CTX*); | ||
| PHP_HASH_API void PHP_SHA3512Update(PHP_SHA3_512_CTX*, const unsigned char*, unsigned int); | ||
| PHP_HASH_API void PHP_SAH3512Final(unsigned char[32], PHP_SHA3_512_CTX*); | ||
|
|
||
| #endif |
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