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/* | ||
BLAKE2 reference source code package - reference C implementations | ||
Copyright 2012, Samuel Neves <[email protected]>. You may use this under the | ||
terms of the CC0, the OpenSSL Licence, or the Apache Public License 2.0, at | ||
your option. The terms of these licenses can be found at: | ||
- CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0 | ||
- OpenSSL license : https://www.openssl.org/source/license.html | ||
- Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0 | ||
More information about the BLAKE2 hash function can be found at | ||
https://blake2.net. | ||
*/ | ||
#ifndef BLAKE2_IMPL_H | ||
#define BLAKE2_IMPL_H | ||
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#include <stdint.h> | ||
#include <string.h> | ||
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#if !defined(__cplusplus) && (!defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901L) | ||
#if defined(_MSC_VER) | ||
#define BLAKE2_INLINE __inline | ||
#elif defined(__GNUC__) | ||
#define BLAKE2_INLINE __inline__ | ||
#else | ||
#define BLAKE2_INLINE | ||
#endif | ||
#else | ||
#define BLAKE2_INLINE inline | ||
#endif | ||
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static BLAKE2_INLINE uint32_t load32( const void *src ) | ||
{ | ||
#if defined(NATIVE_LITTLE_ENDIAN) | ||
uint32_t w; | ||
memcpy(&w, src, sizeof w); | ||
return w; | ||
#else | ||
const uint8_t *p = ( const uint8_t * )src; | ||
return (( uint32_t )( p[0] ) << 0) | | ||
(( uint32_t )( p[1] ) << 8) | | ||
(( uint32_t )( p[2] ) << 16) | | ||
(( uint32_t )( p[3] ) << 24) ; | ||
#endif | ||
} | ||
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static BLAKE2_INLINE uint64_t load64( const void *src ) | ||
{ | ||
#if defined(NATIVE_LITTLE_ENDIAN) | ||
uint64_t w; | ||
memcpy(&w, src, sizeof w); | ||
return w; | ||
#else | ||
const uint8_t *p = ( const uint8_t * )src; | ||
return (( uint64_t )( p[0] ) << 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) ; | ||
#endif | ||
} | ||
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static BLAKE2_INLINE uint16_t load16( const void *src ) | ||
{ | ||
#if defined(NATIVE_LITTLE_ENDIAN) | ||
uint16_t w; | ||
memcpy(&w, src, sizeof w); | ||
return w; | ||
#else | ||
const uint8_t *p = ( const uint8_t * )src; | ||
return ( uint16_t )((( uint32_t )( p[0] ) << 0) | | ||
(( uint32_t )( p[1] ) << 8)); | ||
#endif | ||
} | ||
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static BLAKE2_INLINE void store16( void *dst, uint16_t w ) | ||
{ | ||
#if defined(NATIVE_LITTLE_ENDIAN) | ||
memcpy(dst, &w, sizeof w); | ||
#else | ||
uint8_t *p = ( uint8_t * )dst; | ||
*p++ = ( uint8_t )w; w >>= 8; | ||
*p++ = ( uint8_t )w; | ||
#endif | ||
} | ||
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static BLAKE2_INLINE void store32( void *dst, uint32_t w ) | ||
{ | ||
#if defined(NATIVE_LITTLE_ENDIAN) | ||
memcpy(dst, &w, sizeof w); | ||
#else | ||
uint8_t *p = ( uint8_t * )dst; | ||
p[0] = (uint8_t)(w >> 0); | ||
p[1] = (uint8_t)(w >> 8); | ||
p[2] = (uint8_t)(w >> 16); | ||
p[3] = (uint8_t)(w >> 24); | ||
#endif | ||
} | ||
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static BLAKE2_INLINE void store64( void *dst, uint64_t w ) | ||
{ | ||
#if defined(NATIVE_LITTLE_ENDIAN) | ||
memcpy(dst, &w, sizeof w); | ||
#else | ||
uint8_t *p = ( uint8_t * )dst; | ||
p[0] = (uint8_t)(w >> 0); | ||
p[1] = (uint8_t)(w >> 8); | ||
p[2] = (uint8_t)(w >> 16); | ||
p[3] = (uint8_t)(w >> 24); | ||
p[4] = (uint8_t)(w >> 32); | ||
p[5] = (uint8_t)(w >> 40); | ||
p[6] = (uint8_t)(w >> 48); | ||
p[7] = (uint8_t)(w >> 56); | ||
#endif | ||
} | ||
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static BLAKE2_INLINE uint64_t load48( const void *src ) | ||
{ | ||
const uint8_t *p = ( const uint8_t * )src; | ||
return (( uint64_t )( p[0] ) << 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) ; | ||
} | ||
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static BLAKE2_INLINE void store48( void *dst, uint64_t w ) | ||
{ | ||
uint8_t *p = ( uint8_t * )dst; | ||
p[0] = (uint8_t)(w >> 0); | ||
p[1] = (uint8_t)(w >> 8); | ||
p[2] = (uint8_t)(w >> 16); | ||
p[3] = (uint8_t)(w >> 24); | ||
p[4] = (uint8_t)(w >> 32); | ||
p[5] = (uint8_t)(w >> 40); | ||
} | ||
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static BLAKE2_INLINE uint32_t rotr32( const uint32_t w, const unsigned c ) | ||
{ | ||
return ( w >> c ) | ( w << ( 32 - c ) ); | ||
} | ||
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static BLAKE2_INLINE uint64_t rotr64( const uint64_t w, const unsigned c ) | ||
{ | ||
return ( w >> c ) | ( w << ( 64 - c ) ); | ||
} | ||
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/* prevents compiler optimizing out memset() */ | ||
static BLAKE2_INLINE void secure_zero_memory(void *v, size_t n) | ||
{ | ||
static void *(*const volatile memset_v)(void *, int, size_t) = &memset; | ||
memset_v(v, 0, n); | ||
} | ||
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#endif |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,128 @@ | ||
/* | ||
BLAKE2 reference source code package - reference C implementations | ||
Copyright 2012, Samuel Neves <[email protected]>. You may use this under the | ||
terms of the CC0, the OpenSSL Licence, or the Apache Public License 2.0, at | ||
your option. The terms of these licenses can be found at: | ||
- CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0 | ||
- OpenSSL license : https://www.openssl.org/source/license.html | ||
- Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0 | ||
More information about the BLAKE2 hash function can be found at | ||
https://blake2.net. | ||
*/ | ||
#ifndef BLAKE2_H | ||
#define BLAKE2_H | ||
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#include <stddef.h> | ||
#include <stdint.h> | ||
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#if defined(_MSC_VER) | ||
#define BLAKE2_PACKED(x) __pragma(pack(push, 1)) x __pragma(pack(pop)) | ||
#else | ||
#define BLAKE2_PACKED(x) x __attribute__((packed)) | ||
#endif | ||
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#if defined(__cplusplus) | ||
extern "C" { | ||
#endif | ||
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enum blake2s_constant | ||
{ | ||
BLAKE2S_BLOCKBYTES = 64, | ||
BLAKE2S_OUTBYTES = 32, | ||
BLAKE2S_KEYBYTES = 32, | ||
BLAKE2S_SALTBYTES = 8, | ||
BLAKE2S_PERSONALBYTES = 8 | ||
}; | ||
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typedef struct blake2s_state__ | ||
{ | ||
uint32_t h[8]; | ||
uint32_t t[2]; | ||
uint32_t f[2]; | ||
uint8_t buf[BLAKE2S_BLOCKBYTES]; | ||
size_t buflen; | ||
size_t outlen; | ||
uint8_t last_node; | ||
} blake2s_state; | ||
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typedef struct blake2sp_state__ | ||
{ | ||
blake2s_state S[8][1]; | ||
blake2s_state R[1]; | ||
uint8_t buf[8 * BLAKE2S_BLOCKBYTES]; | ||
size_t buflen; | ||
size_t outlen; | ||
} blake2sp_state; | ||
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BLAKE2_PACKED(struct blake2s_param__ | ||
{ | ||
uint8_t digest_length; /* 1 */ | ||
uint8_t key_length; /* 2 */ | ||
uint8_t fanout; /* 3 */ | ||
uint8_t depth; /* 4 */ | ||
uint32_t leaf_length; /* 8 */ | ||
uint32_t node_offset; /* 12 */ | ||
uint16_t xof_length; /* 14 */ | ||
uint8_t node_depth; /* 15 */ | ||
uint8_t inner_length; /* 16 */ | ||
/* uint8_t reserved[0]; */ | ||
uint8_t salt[BLAKE2S_SALTBYTES]; /* 24 */ | ||
uint8_t personal[BLAKE2S_PERSONALBYTES]; /* 32 */ | ||
}); | ||
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typedef struct blake2s_param__ blake2s_param; | ||
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typedef struct blake2b_param__ blake2b_param; | ||
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typedef struct blake2xs_state__ | ||
{ | ||
blake2s_state S[1]; | ||
blake2s_param P[1]; | ||
} blake2xs_state; | ||
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/* Padded structs result in a compile-time error */ | ||
enum { | ||
BLAKE2_DUMMY_1 = 1/(int)(sizeof(blake2s_param) == BLAKE2S_OUTBYTES), | ||
// BLAKE2_DUMMY_2 = 1/(int)(sizeof(blake2b_param) == BLAKE2B_OUTBYTES) | ||
}; | ||
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/* Streaming API */ | ||
int blake2s_init( blake2s_state *S, size_t outlen ); | ||
int blake2s_init_key( blake2s_state *S, size_t outlen, const void *key, size_t keylen ); | ||
int blake2s_init_param( blake2s_state *S, const blake2s_param *P ); | ||
int blake2s_update( blake2s_state *S, const void *in, size_t inlen ); | ||
int blake2s_final( blake2s_state *S, void *out, size_t outlen ); | ||
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int blake2sp_init( blake2sp_state *S, size_t outlen ); | ||
int blake2sp_init_key( blake2sp_state *S, size_t outlen, const void *key, size_t keylen ); | ||
int blake2s_init_with_personalization( blake2s_state *S, size_t outlen, const uint8_t* personalization, uint8_t personalizationlen ); | ||
int blake2sp_update( blake2sp_state *S, const void *in, size_t inlen ); | ||
int blake2sp_final( blake2sp_state *S, void *out, size_t outlen ); | ||
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/* Variable output length API */ | ||
int blake2xs_init( blake2xs_state *S, const size_t outlen ); | ||
int blake2xs_init_key( blake2xs_state *S, const size_t outlen, const void *key, size_t keylen ); | ||
int blake2xs_update( blake2xs_state *S, const void *in, size_t inlen ); | ||
int blake2xs_final(blake2xs_state *S, void *out, size_t outlen); | ||
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/* Simple API */ | ||
int blake2s( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen ); | ||
int blake2b( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen ); | ||
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int blake2sp( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen ); | ||
int blake2bp( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen ); | ||
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int blake2xs( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen ); | ||
int blake2xb( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen ); | ||
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/* This is simply an alias for blake2b */ | ||
int blake2( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen ); | ||
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#if defined(__cplusplus) | ||
} | ||
#endif | ||
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#endif |
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