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3rdparty: Add reference C implementation of BLAKE2

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This is required for adding support of the BLAKE2 hashing algorithms in
QCryptographicHash.

Change-Id: Icc981c3a99a2713fdd1c18766b05619254650622
Reviewed-by: Kai Koehne <kai.koehne@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
This commit is contained in:
Linus Jahn 2020-07-09 20:47:08 +02:00 committed by Kai Koehne
parent 24d60cb64d
commit 06f7a24574
6 changed files with 1436 additions and 0 deletions
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{
"Id": "blake2",
"Name": "BLAKE2 (reference implementation)",
"QDocModule": "qtcore",
"QtUsage": "Used in Qt Core (QCryptographicHash).",
"Files": "src/blake2b-ref.c src/blake2s-ref.c src/blake2.h src/blake2-impl.h",
"Description": "BLAKE2 is a cryptographic hash function faster than MD5, SHA-1, SHA-2, and SHA-3, yet is at least as secure as the latest standard SHA-3.",
"Homepage": "https://blake2.net/",
"Version": "3d6155ab1682e68c30f93064f988247508f55bbe",
"DownloadLocation": "https://github.com/BLAKE2/BLAKE2/tree/3d6155ab1682e68c30f93064f988247508f55bbe",
"License": "Creative Commons Zero v1.0 Universal or Apache License 2.0",
"LicenseId": "CC0-1.0 OR Apache-2.0",
"LicenseFile": "COPYING",
"Copyright": "Copyright 2012, Samuel Neves <sneves@dei.uc.pt>"
}

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/*
BLAKE2 reference source code package - reference C implementations
Copyright 2012, Samuel Neves <sneves@dei.uc.pt>. 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
#include <stdint.h>
#include <string.h>
#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
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
}
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
}
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
}
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
}
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
}
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
}
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) ;
}
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);
}
static BLAKE2_INLINE uint32_t rotr32( const uint32_t w, const unsigned c )
{
return ( w >> c ) | ( w << ( 32 - c ) );
}
static BLAKE2_INLINE uint64_t rotr64( const uint64_t w, const unsigned c )
{
return ( w >> c ) | ( w << ( 64 - c ) );
}
/* 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);
}
#endif

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/*
BLAKE2 reference source code package - reference C implementations
Copyright 2012, Samuel Neves <sneves@dei.uc.pt>. 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
#include <stddef.h>
#include <stdint.h>
#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
#if defined(__cplusplus)
extern "C" {
#endif
enum blake2s_constant
{
BLAKE2S_BLOCKBYTES = 64,
BLAKE2S_OUTBYTES = 32,
BLAKE2S_KEYBYTES = 32,
BLAKE2S_SALTBYTES = 8,
BLAKE2S_PERSONALBYTES = 8
};
enum blake2b_constant
{
BLAKE2B_BLOCKBYTES = 128,
BLAKE2B_OUTBYTES = 64,
BLAKE2B_KEYBYTES = 64,
BLAKE2B_SALTBYTES = 16,
BLAKE2B_PERSONALBYTES = 16
};
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;
typedef struct blake2b_state__
{
uint64_t h[8];
uint64_t t[2];
uint64_t f[2];
uint8_t buf[BLAKE2B_BLOCKBYTES];
size_t buflen;
size_t outlen;
uint8_t last_node;
} blake2b_state;
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;
typedef struct blake2bp_state__
{
blake2b_state S[4][1];
blake2b_state R[1];
uint8_t buf[4 * BLAKE2B_BLOCKBYTES];
size_t buflen;
size_t outlen;
} blake2bp_state;
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 */
});
typedef struct blake2s_param__ blake2s_param;
BLAKE2_PACKED(struct blake2b_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 */
uint32_t xof_length; /* 16 */
uint8_t node_depth; /* 17 */
uint8_t inner_length; /* 18 */
uint8_t reserved[14]; /* 32 */
uint8_t salt[BLAKE2B_SALTBYTES]; /* 48 */
uint8_t personal[BLAKE2B_PERSONALBYTES]; /* 64 */
});
typedef struct blake2b_param__ blake2b_param;
typedef struct blake2xs_state__
{
blake2s_state S[1];
blake2s_param P[1];
} blake2xs_state;
typedef struct blake2xb_state__
{
blake2b_state S[1];
blake2b_param P[1];
} blake2xb_state;
/* Padded structs result in a compile-time error */
enum {
BLAKE2_DUMMY_1 = 1/(sizeof(blake2s_param) == BLAKE2S_OUTBYTES),
BLAKE2_DUMMY_2 = 1/(sizeof(blake2b_param) == BLAKE2B_OUTBYTES)
};
/* 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 );
int blake2b_init( blake2b_state *S, size_t outlen );
int blake2b_init_key( blake2b_state *S, size_t outlen, const void *key, size_t keylen );
int blake2b_init_param( blake2b_state *S, const blake2b_param *P );
int blake2b_update( blake2b_state *S, const void *in, size_t inlen );
int blake2b_final( blake2b_state *S, void *out, size_t outlen );
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 blake2sp_update( blake2sp_state *S, const void *in, size_t inlen );
int blake2sp_final( blake2sp_state *S, void *out, size_t outlen );
int blake2bp_init( blake2bp_state *S, size_t outlen );
int blake2bp_init_key( blake2bp_state *S, size_t outlen, const void *key, size_t keylen );
int blake2bp_update( blake2bp_state *S, const void *in, size_t inlen );
int blake2bp_final( blake2bp_state *S, void *out, size_t outlen );
/* 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);
int blake2xb_init( blake2xb_state *S, const size_t outlen );
int blake2xb_init_key( blake2xb_state *S, const size_t outlen, const void *key, size_t keylen );
int blake2xb_update( blake2xb_state *S, const void *in, size_t inlen );
int blake2xb_final(blake2xb_state *S, void *out, size_t outlen);
/* 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 );
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 );
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 );
/* 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 );
#if defined(__cplusplus)
}
#endif
#endif

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/*
BLAKE2 reference source code package - reference C implementations
Copyright 2012, Samuel Neves <sneves@dei.uc.pt>. 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.
*/
#include <stdint.h>
#include <string.h>
#include <stdio.h>
#include "blake2.h"
#include "blake2-impl.h"
static const uint64_t blake2b_IV[8] =
{
0x6a09e667f3bcc908ULL, 0xbb67ae8584caa73bULL,
0x3c6ef372fe94f82bULL, 0xa54ff53a5f1d36f1ULL,
0x510e527fade682d1ULL, 0x9b05688c2b3e6c1fULL,
0x1f83d9abfb41bd6bULL, 0x5be0cd19137e2179ULL
};
static const uint8_t blake2b_sigma[12][16] =
{
{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 } ,
{ 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 } ,
{ 11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4 } ,
{ 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8 } ,
{ 9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13 } ,
{ 2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9 } ,
{ 12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11 } ,
{ 13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10 } ,
{ 6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5 } ,
{ 10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13 , 0 } ,
{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 } ,
{ 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 }
};
static void blake2b_set_lastnode( blake2b_state *S )
{
S->f[1] = (uint64_t)-1;
}
/* Some helper functions, not necessarily useful */
static int blake2b_is_lastblock( const blake2b_state *S )
{
return S->f[0] != 0;
}
static void blake2b_set_lastblock( blake2b_state *S )
{
if( S->last_node ) blake2b_set_lastnode( S );
S->f[0] = (uint64_t)-1;
}
static void blake2b_increment_counter( blake2b_state *S, const uint64_t inc )
{
S->t[0] += inc;
S->t[1] += ( S->t[0] < inc );
}
static void blake2b_init0( blake2b_state *S )
{
size_t i;
memset( S, 0, sizeof( blake2b_state ) );
for( i = 0; i < 8; ++i ) S->h[i] = blake2b_IV[i];
}
/* init xors IV with input parameter block */
int blake2b_init_param( blake2b_state *S, const blake2b_param *P )
{
const uint8_t *p = ( const uint8_t * )( P );
size_t i;
blake2b_init0( S );
/* IV XOR ParamBlock */
for( i = 0; i < 8; ++i )
S->h[i] ^= load64( p + sizeof( S->h[i] ) * i );
S->outlen = P->digest_length;
return 0;
}
int blake2b_init( blake2b_state *S, size_t outlen )
{
blake2b_param P[1];
if ( ( !outlen ) || ( outlen > BLAKE2B_OUTBYTES ) ) return -1;
P->digest_length = (uint8_t)outlen;
P->key_length = 0;
P->fanout = 1;
P->depth = 1;
store32( &P->leaf_length, 0 );
store32( &P->node_offset, 0 );
store32( &P->xof_length, 0 );
P->node_depth = 0;
P->inner_length = 0;
memset( P->reserved, 0, sizeof( P->reserved ) );
memset( P->salt, 0, sizeof( P->salt ) );
memset( P->personal, 0, sizeof( P->personal ) );
return blake2b_init_param( S, P );
}
int blake2b_init_key( blake2b_state *S, size_t outlen, const void *key, size_t keylen )
{
blake2b_param P[1];
if ( ( !outlen ) || ( outlen > BLAKE2B_OUTBYTES ) ) return -1;
if ( !key || !keylen || keylen > BLAKE2B_KEYBYTES ) return -1;
P->digest_length = (uint8_t)outlen;
P->key_length = (uint8_t)keylen;
P->fanout = 1;
P->depth = 1;
store32( &P->leaf_length, 0 );
store32( &P->node_offset, 0 );
store32( &P->xof_length, 0 );
P->node_depth = 0;
P->inner_length = 0;
memset( P->reserved, 0, sizeof( P->reserved ) );
memset( P->salt, 0, sizeof( P->salt ) );
memset( P->personal, 0, sizeof( P->personal ) );
if( blake2b_init_param( S, P ) < 0 ) return -1;
{
uint8_t block[BLAKE2B_BLOCKBYTES];
memset( block, 0, BLAKE2B_BLOCKBYTES );
memcpy( block, key, keylen );
blake2b_update( S, block, BLAKE2B_BLOCKBYTES );
secure_zero_memory( block, BLAKE2B_BLOCKBYTES ); /* Burn the key from stack */
}
return 0;
}
#define G(r,i,a,b,c,d) \
do { \
a = a + b + m[blake2b_sigma[r][2*i+0]]; \
d = rotr64(d ^ a, 32); \
c = c + d; \
b = rotr64(b ^ c, 24); \
a = a + b + m[blake2b_sigma[r][2*i+1]]; \
d = rotr64(d ^ a, 16); \
c = c + d; \
b = rotr64(b ^ c, 63); \
} while(0)
#define ROUND(r) \
do { \
G(r,0,v[ 0],v[ 4],v[ 8],v[12]); \
G(r,1,v[ 1],v[ 5],v[ 9],v[13]); \
G(r,2,v[ 2],v[ 6],v[10],v[14]); \
G(r,3,v[ 3],v[ 7],v[11],v[15]); \
G(r,4,v[ 0],v[ 5],v[10],v[15]); \
G(r,5,v[ 1],v[ 6],v[11],v[12]); \
G(r,6,v[ 2],v[ 7],v[ 8],v[13]); \
G(r,7,v[ 3],v[ 4],v[ 9],v[14]); \
} while(0)
static void blake2b_compress( blake2b_state *S, const uint8_t block[BLAKE2B_BLOCKBYTES] )
{
uint64_t m[16];
uint64_t v[16];
size_t i;
for( i = 0; i < 16; ++i ) {
m[i] = load64( block + i * sizeof( m[i] ) );
}
for( i = 0; i < 8; ++i ) {
v[i] = S->h[i];
}
v[ 8] = blake2b_IV[0];
v[ 9] = blake2b_IV[1];
v[10] = blake2b_IV[2];
v[11] = blake2b_IV[3];
v[12] = blake2b_IV[4] ^ S->t[0];
v[13] = blake2b_IV[5] ^ S->t[1];
v[14] = blake2b_IV[6] ^ S->f[0];
v[15] = blake2b_IV[7] ^ S->f[1];
ROUND( 0 );
ROUND( 1 );
ROUND( 2 );
ROUND( 3 );
ROUND( 4 );
ROUND( 5 );
ROUND( 6 );
ROUND( 7 );
ROUND( 8 );
ROUND( 9 );
ROUND( 10 );
ROUND( 11 );
for( i = 0; i < 8; ++i ) {
S->h[i] = S->h[i] ^ v[i] ^ v[i + 8];
}
}
#undef G
#undef ROUND
int blake2b_update( blake2b_state *S, const void *pin, size_t inlen )
{
const unsigned char * in = (const unsigned char *)pin;
if( inlen > 0 )
{
size_t left = S->buflen;
size_t fill = BLAKE2B_BLOCKBYTES - left;
if( inlen > fill )
{
S->buflen = 0;
memcpy( S->buf + left, in, fill ); /* Fill buffer */
blake2b_increment_counter( S, BLAKE2B_BLOCKBYTES );
blake2b_compress( S, S->buf ); /* Compress */
in += fill; inlen -= fill;
while(inlen > BLAKE2B_BLOCKBYTES) {
blake2b_increment_counter(S, BLAKE2B_BLOCKBYTES);
blake2b_compress( S, in );
in += BLAKE2B_BLOCKBYTES;
inlen -= BLAKE2B_BLOCKBYTES;
}
}
memcpy( S->buf + S->buflen, in, inlen );
S->buflen += inlen;
}
return 0;
}
int blake2b_final( blake2b_state *S, void *out, size_t outlen )
{
uint8_t buffer[BLAKE2B_OUTBYTES] = {0};
size_t i;
if( out == NULL || outlen < S->outlen )
return -1;
if( blake2b_is_lastblock( S ) )
return -1;
blake2b_increment_counter( S, S->buflen );
blake2b_set_lastblock( S );
memset( S->buf + S->buflen, 0, BLAKE2B_BLOCKBYTES - S->buflen ); /* Padding */
blake2b_compress( S, S->buf );
for( i = 0; i < 8; ++i ) /* Output full hash to temp buffer */
store64( buffer + sizeof( S->h[i] ) * i, S->h[i] );
memcpy( out, buffer, S->outlen );
secure_zero_memory(buffer, sizeof(buffer));
return 0;
}
/* inlen, at least, should be uint64_t. Others can be size_t. */
int blake2b( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen )
{
blake2b_state S[1];
/* Verify parameters */
if ( NULL == in && inlen > 0 ) return -1;
if ( NULL == out ) return -1;
if( NULL == key && keylen > 0 ) return -1;
if( !outlen || outlen > BLAKE2B_OUTBYTES ) return -1;
if( keylen > BLAKE2B_KEYBYTES ) return -1;
if( keylen > 0 )
{
if( blake2b_init_key( S, outlen, key, keylen ) < 0 ) return -1;
}
else
{
if( blake2b_init( S, outlen ) < 0 ) return -1;
}
blake2b_update( S, ( const uint8_t * )in, inlen );
blake2b_final( S, out, outlen );
return 0;
}
int blake2( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen ) {
return blake2b(out, outlen, in, inlen, key, keylen);
}
#if defined(SUPERCOP)
int crypto_hash( unsigned char *out, unsigned char *in, unsigned long long inlen )
{
return blake2b( out, BLAKE2B_OUTBYTES, in, inlen, NULL, 0 );
}
#endif
#if defined(BLAKE2B_SELFTEST)
#include <string.h>
#include "blake2-kat.h"
int main( void )
{
uint8_t key[BLAKE2B_KEYBYTES];
uint8_t buf[BLAKE2_KAT_LENGTH];
size_t i, step;
for( i = 0; i < BLAKE2B_KEYBYTES; ++i )
key[i] = ( uint8_t )i;
for( i = 0; i < BLAKE2_KAT_LENGTH; ++i )
buf[i] = ( uint8_t )i;
/* Test simple API */
for( i = 0; i < BLAKE2_KAT_LENGTH; ++i )
{
uint8_t hash[BLAKE2B_OUTBYTES];
blake2b( hash, BLAKE2B_OUTBYTES, buf, i, key, BLAKE2B_KEYBYTES );
if( 0 != memcmp( hash, blake2b_keyed_kat[i], BLAKE2B_OUTBYTES ) )
{
goto fail;
}
}
/* Test streaming API */
for(step = 1; step < BLAKE2B_BLOCKBYTES; ++step) {
for (i = 0; i < BLAKE2_KAT_LENGTH; ++i) {
uint8_t hash[BLAKE2B_OUTBYTES];
blake2b_state S;
uint8_t * p = buf;
size_t mlen = i;
int err = 0;
if( (err = blake2b_init_key(&S, BLAKE2B_OUTBYTES, key, BLAKE2B_KEYBYTES)) < 0 ) {
goto fail;
}
while (mlen >= step) {
if ( (err = blake2b_update(&S, p, step)) < 0 ) {
goto fail;
}
mlen -= step;
p += step;
}
if ( (err = blake2b_update(&S, p, mlen)) < 0) {
goto fail;
}
if ( (err = blake2b_final(&S, hash, BLAKE2B_OUTBYTES)) < 0) {
goto fail;
}
if (0 != memcmp(hash, blake2b_keyed_kat[i], BLAKE2B_OUTBYTES)) {
goto fail;
}
}
}
puts( "ok" );
return 0;
fail:
puts("error");
return -1;
}
#endif

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/*
BLAKE2 reference source code package - reference C implementations
Copyright 2012, Samuel Neves <sneves@dei.uc.pt>. 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.
*/
#include <stdint.h>
#include <string.h>
#include <stdio.h>
#include "blake2.h"
#include "blake2-impl.h"
static const uint32_t blake2s_IV[8] =
{
0x6A09E667UL, 0xBB67AE85UL, 0x3C6EF372UL, 0xA54FF53AUL,
0x510E527FUL, 0x9B05688CUL, 0x1F83D9ABUL, 0x5BE0CD19UL
};
static const uint8_t blake2s_sigma[10][16] =
{
{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 } ,
{ 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 } ,
{ 11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4 } ,
{ 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8 } ,
{ 9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13 } ,
{ 2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9 } ,
{ 12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11 } ,
{ 13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10 } ,
{ 6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5 } ,
{ 10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13 , 0 } ,
};
static void blake2s_set_lastnode( blake2s_state *S )
{
S->f[1] = (uint32_t)-1;
}
/* Some helper functions, not necessarily useful */
static int blake2s_is_lastblock( const blake2s_state *S )
{
return S->f[0] != 0;
}
static void blake2s_set_lastblock( blake2s_state *S )
{
if( S->last_node ) blake2s_set_lastnode( S );
S->f[0] = (uint32_t)-1;
}
static void blake2s_increment_counter( blake2s_state *S, const uint32_t inc )
{
S->t[0] += inc;
S->t[1] += ( S->t[0] < inc );
}
static void blake2s_init0( blake2s_state *S )
{
size_t i;
memset( S, 0, sizeof( blake2s_state ) );
for( i = 0; i < 8; ++i ) S->h[i] = blake2s_IV[i];
}
/* init2 xors IV with input parameter block */
int blake2s_init_param( blake2s_state *S, const blake2s_param *P )
{
const unsigned char *p = ( const unsigned char * )( P );
size_t i;
blake2s_init0( S );
/* IV XOR ParamBlock */
for( i = 0; i < 8; ++i )
S->h[i] ^= load32( &p[i * 4] );
S->outlen = P->digest_length;
return 0;
}
/* Sequential blake2s initialization */
int blake2s_init( blake2s_state *S, size_t outlen )
{
blake2s_param P[1];
/* Move interval verification here? */
if ( ( !outlen ) || ( outlen > BLAKE2S_OUTBYTES ) ) return -1;
P->digest_length = (uint8_t)outlen;
P->key_length = 0;
P->fanout = 1;
P->depth = 1;
store32( &P->leaf_length, 0 );
store32( &P->node_offset, 0 );
store16( &P->xof_length, 0 );
P->node_depth = 0;
P->inner_length = 0;
/* memset(P->reserved, 0, sizeof(P->reserved) ); */
memset( P->salt, 0, sizeof( P->salt ) );
memset( P->personal, 0, sizeof( P->personal ) );
return blake2s_init_param( S, P );
}
int blake2s_init_key( blake2s_state *S, size_t outlen, const void *key, size_t keylen )
{
blake2s_param P[1];
if ( ( !outlen ) || ( outlen > BLAKE2S_OUTBYTES ) ) return -1;
if ( !key || !keylen || keylen > BLAKE2S_KEYBYTES ) return -1;
P->digest_length = (uint8_t)outlen;
P->key_length = (uint8_t)keylen;
P->fanout = 1;
P->depth = 1;
store32( &P->leaf_length, 0 );
store32( &P->node_offset, 0 );
store16( &P->xof_length, 0 );
P->node_depth = 0;
P->inner_length = 0;
/* memset(P->reserved, 0, sizeof(P->reserved) ); */
memset( P->salt, 0, sizeof( P->salt ) );
memset( P->personal, 0, sizeof( P->personal ) );
if( blake2s_init_param( S, P ) < 0 ) return -1;
{
uint8_t block[BLAKE2S_BLOCKBYTES];
memset( block, 0, BLAKE2S_BLOCKBYTES );
memcpy( block, key, keylen );
blake2s_update( S, block, BLAKE2S_BLOCKBYTES );
secure_zero_memory( block, BLAKE2S_BLOCKBYTES ); /* Burn the key from stack */
}
return 0;
}
#define G(r,i,a,b,c,d) \
do { \
a = a + b + m[blake2s_sigma[r][2*i+0]]; \
d = rotr32(d ^ a, 16); \
c = c + d; \
b = rotr32(b ^ c, 12); \
a = a + b + m[blake2s_sigma[r][2*i+1]]; \
d = rotr32(d ^ a, 8); \
c = c + d; \
b = rotr32(b ^ c, 7); \
} while(0)
#define ROUND(r) \
do { \
G(r,0,v[ 0],v[ 4],v[ 8],v[12]); \
G(r,1,v[ 1],v[ 5],v[ 9],v[13]); \
G(r,2,v[ 2],v[ 6],v[10],v[14]); \
G(r,3,v[ 3],v[ 7],v[11],v[15]); \
G(r,4,v[ 0],v[ 5],v[10],v[15]); \
G(r,5,v[ 1],v[ 6],v[11],v[12]); \
G(r,6,v[ 2],v[ 7],v[ 8],v[13]); \
G(r,7,v[ 3],v[ 4],v[ 9],v[14]); \
} while(0)
static void blake2s_compress( blake2s_state *S, const uint8_t in[BLAKE2S_BLOCKBYTES] )
{
uint32_t m[16];
uint32_t v[16];
size_t i;
for( i = 0; i < 16; ++i ) {
m[i] = load32( in + i * sizeof( m[i] ) );
}
for( i = 0; i < 8; ++i ) {
v[i] = S->h[i];
}
v[ 8] = blake2s_IV[0];
v[ 9] = blake2s_IV[1];
v[10] = blake2s_IV[2];
v[11] = blake2s_IV[3];
v[12] = S->t[0] ^ blake2s_IV[4];
v[13] = S->t[1] ^ blake2s_IV[5];
v[14] = S->f[0] ^ blake2s_IV[6];
v[15] = S->f[1] ^ blake2s_IV[7];
ROUND( 0 );
ROUND( 1 );
ROUND( 2 );
ROUND( 3 );
ROUND( 4 );
ROUND( 5 );
ROUND( 6 );
ROUND( 7 );
ROUND( 8 );
ROUND( 9 );
for( i = 0; i < 8; ++i ) {
S->h[i] = S->h[i] ^ v[i] ^ v[i + 8];
}
}
#undef G
#undef ROUND
int blake2s_update( blake2s_state *S, const void *pin, size_t inlen )
{
const unsigned char * in = (const unsigned char *)pin;
if( inlen > 0 )
{
size_t left = S->buflen;
size_t fill = BLAKE2S_BLOCKBYTES - left;
if( inlen > fill )
{
S->buflen = 0;
memcpy( S->buf + left, in, fill ); /* Fill buffer */
blake2s_increment_counter( S, BLAKE2S_BLOCKBYTES );
blake2s_compress( S, S->buf ); /* Compress */
in += fill; inlen -= fill;
while(inlen > BLAKE2S_BLOCKBYTES) {
blake2s_increment_counter(S, BLAKE2S_BLOCKBYTES);
blake2s_compress( S, in );
in += BLAKE2S_BLOCKBYTES;
inlen -= BLAKE2S_BLOCKBYTES;
}
}
memcpy( S->buf + S->buflen, in, inlen );
S->buflen += inlen;
}
return 0;
}
int blake2s_final( blake2s_state *S, void *out, size_t outlen )
{
uint8_t buffer[BLAKE2S_OUTBYTES] = {0};
size_t i;
if( out == NULL || outlen < S->outlen )
return -1;
if( blake2s_is_lastblock( S ) )
return -1;
blake2s_increment_counter( S, ( uint32_t )S->buflen );
blake2s_set_lastblock( S );
memset( S->buf + S->buflen, 0, BLAKE2S_BLOCKBYTES - S->buflen ); /* Padding */
blake2s_compress( S, S->buf );
for( i = 0; i < 8; ++i ) /* Output full hash to temp buffer */
store32( buffer + sizeof( S->h[i] ) * i, S->h[i] );
memcpy( out, buffer, outlen );
secure_zero_memory(buffer, sizeof(buffer));
return 0;
}
int blake2s( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen )
{
blake2s_state S[1];
/* Verify parameters */
if ( NULL == in && inlen > 0 ) return -1;
if ( NULL == out ) return -1;
if ( NULL == key && keylen > 0) return -1;
if( !outlen || outlen > BLAKE2S_OUTBYTES ) return -1;
if( keylen > BLAKE2S_KEYBYTES ) return -1;
if( keylen > 0 )
{
if( blake2s_init_key( S, outlen, key, keylen ) < 0 ) return -1;
}
else
{
if( blake2s_init( S, outlen ) < 0 ) return -1;
}
blake2s_update( S, ( const uint8_t * )in, inlen );
blake2s_final( S, out, outlen );
return 0;
}
#if defined(SUPERCOP)
int crypto_hash( unsigned char *out, unsigned char *in, unsigned long long inlen )
{
return blake2s( out, BLAKE2S_OUTBYTES, in, inlen, NULL, 0 );
}
#endif
#if defined(BLAKE2S_SELFTEST)
#include <string.h>
#include "blake2-kat.h"
int main( void )
{
uint8_t key[BLAKE2S_KEYBYTES];
uint8_t buf[BLAKE2_KAT_LENGTH];
size_t i, step;
for( i = 0; i < BLAKE2S_KEYBYTES; ++i )
key[i] = ( uint8_t )i;
for( i = 0; i < BLAKE2_KAT_LENGTH; ++i )
buf[i] = ( uint8_t )i;
/* Test simple API */
for( i = 0; i < BLAKE2_KAT_LENGTH; ++i )
{
uint8_t hash[BLAKE2S_OUTBYTES];
blake2s( hash, BLAKE2S_OUTBYTES, buf, i, key, BLAKE2S_KEYBYTES );
if( 0 != memcmp( hash, blake2s_keyed_kat[i], BLAKE2S_OUTBYTES ) )
{
goto fail;
}
}
/* Test streaming API */
for(step = 1; step < BLAKE2S_BLOCKBYTES; ++step) {
for (i = 0; i < BLAKE2_KAT_LENGTH; ++i) {
uint8_t hash[BLAKE2S_OUTBYTES];
blake2s_state S;
uint8_t * p = buf;
size_t mlen = i;
int err = 0;
if( (err = blake2s_init_key(&S, BLAKE2S_OUTBYTES, key, BLAKE2S_KEYBYTES)) < 0 ) {
goto fail;
}
while (mlen >= step) {
if ( (err = blake2s_update(&S, p, step)) < 0 ) {
goto fail;
}
mlen -= step;
p += step;
}
if ( (err = blake2s_update(&S, p, mlen)) < 0) {
goto fail;
}
if ( (err = blake2s_final(&S, hash, BLAKE2S_OUTBYTES)) < 0) {
goto fail;
}
if (0 != memcmp(hash, blake2s_keyed_kat[i], BLAKE2S_OUTBYTES)) {
goto fail;
}
}
}
puts( "ok" );
return 0;
fail:
puts("error");
return -1;
}
#endif