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150 lines
3.7 KiB
150 lines
3.7 KiB
/** |
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* BLAKE2 reference source code package - reference C implementations |
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* |
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* Written in 2012 by Samuel Neves <sneves@dei.uc.pt> |
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* |
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* To the extent possible under law, the author(s) have dedicated all copyright |
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* and related and neighboring rights to this software to the public domain |
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* worldwide. This software is distributed without any warranty. |
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* |
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* You should have received a copy of the CC0 Public Domain Dedication along with |
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* this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>. |
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*/ |
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#pragma once |
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#ifndef __BLAKE2_H__ |
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#define __BLAKE2_H__ |
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#include <stddef.h> |
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#include <stdint.h> |
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#if defined(_MSC_VER) |
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#include <inttypes.h> |
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#define inline __inline |
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#define ALIGN(x) __declspec(align(x)) |
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#else |
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#define ALIGN(x) __attribute__((aligned(x))) |
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#endif |
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/* blake2-impl.h */ |
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static inline uint32_t load32(const void *src) |
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{ |
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#if defined(NATIVE_LITTLE_ENDIAN) |
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return *(uint32_t *)(src); |
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#else |
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const uint8_t *p = (uint8_t *)src; |
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uint32_t w = *p++; |
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w |= (uint32_t)(*p++) << 8; |
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w |= (uint32_t)(*p++) << 16; |
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w |= (uint32_t)(*p++) << 24; |
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return w; |
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#endif |
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} |
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static inline void store32(void *dst, uint32_t w) |
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{ |
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#if defined(NATIVE_LITTLE_ENDIAN) |
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*(uint32_t *)(dst) = w; |
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#else |
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uint8_t *p = (uint8_t *)dst; |
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*p++ = (uint8_t)w; w >>= 8; |
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*p++ = (uint8_t)w; w >>= 8; |
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*p++ = (uint8_t)w; w >>= 8; |
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*p++ = (uint8_t)w; |
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#endif |
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} |
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static inline uint64_t load48(const void *src) |
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{ |
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const uint8_t *p = (const uint8_t *)src; |
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uint64_t w = *p++; |
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w |= (uint64_t)(*p++) << 8; |
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w |= (uint64_t)(*p++) << 16; |
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w |= (uint64_t)(*p++) << 24; |
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w |= (uint64_t)(*p++) << 32; |
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w |= (uint64_t)(*p++) << 40; |
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return w; |
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} |
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static inline void store48(void *dst, uint64_t w) |
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{ |
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uint8_t *p = (uint8_t *)dst; |
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*p++ = (uint8_t)w; w >>= 8; |
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*p++ = (uint8_t)w; w >>= 8; |
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*p++ = (uint8_t)w; w >>= 8; |
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*p++ = (uint8_t)w; w >>= 8; |
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*p++ = (uint8_t)w; w >>= 8; |
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*p++ = (uint8_t)w; |
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} |
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/* prevents compiler optimizing out memset() */ |
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static inline void secure_zero_memory(void *v, size_t n) |
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{ |
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volatile uint8_t *p = ( volatile uint8_t * )v; |
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while( n-- ) *p++ = 0; |
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} |
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/* blake2.h */ |
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enum blake2s_constant |
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{ |
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BLAKE2S_BLOCKBYTES = 64, |
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BLAKE2S_OUTBYTES = 32, |
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BLAKE2S_KEYBYTES = 32, |
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BLAKE2S_SALTBYTES = 8, |
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BLAKE2S_PERSONALBYTES = 8 |
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}; |
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#pragma pack(push, 1) |
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typedef struct __blake2s_param |
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{ |
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uint8_t digest_length; // 1 |
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uint8_t key_length; // 2 |
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uint8_t fanout; // 3 |
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uint8_t depth; // 4 |
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uint32_t leaf_length; // 8 |
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uint8_t node_offset[6];// 14 |
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uint8_t node_depth; // 15 |
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uint8_t inner_length; // 16 |
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// uint8_t reserved[0]; |
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uint8_t salt[BLAKE2S_SALTBYTES]; // 24 |
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uint8_t personal[BLAKE2S_PERSONALBYTES]; // 32 |
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} blake2s_param; |
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ALIGN( 64 ) typedef struct __blake2s_state |
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{ |
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uint32_t h[8]; |
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uint32_t t[2]; |
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uint32_t f[2]; |
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uint8_t buf[2 * BLAKE2S_BLOCKBYTES]; |
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size_t buflen; |
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uint8_t last_node; |
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} blake2s_state; |
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#pragma pack(pop) |
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#if defined(__cplusplus) |
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extern "C" { |
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#endif |
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int blake2s_compress( blake2s_state *S, const uint8_t block[BLAKE2S_BLOCKBYTES] ); |
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// Streaming API |
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int blake2s_init( blake2s_state *S, const uint8_t outlen ); |
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int blake2s_init_key( blake2s_state *S, const uint8_t outlen, const void *key, const uint8_t keylen ); |
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int blake2s_init_param( blake2s_state *S, const blake2s_param *P ); |
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int blake2s_update( blake2s_state *S, const uint8_t *in, uint64_t inlen ); |
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int blake2s_final( blake2s_state *S, uint8_t *out, uint8_t outlen ); |
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// Simple API |
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int blake2s( uint8_t *out, const void *in, const void *key, const uint8_t outlen, const uint64_t inlen, uint8_t keylen ); |
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// Direct Hash Mining Helpers |
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#define blake2s_salt32(out, in, inlen, key32) blake2s(out, in, key32, 32, inlen, 32) /* neoscrypt */ |
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#define blake2s_simple(out, in, inlen) blake2s(out, in, NULL, 32, inlen, 0) |
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#if defined(__cplusplus) |
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} |
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#endif |
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#endif
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