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add Blake2b

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This commit is contained in:
Pavol Rusnak 2017-02-28 18:14:54 +01:00
parent 3d364aac36
commit 9a2310fc53
No known key found for this signature in database
GPG Key ID: 91F3B339B9A02A3D
7 changed files with 407 additions and 26 deletions
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2
Makefile
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@ -47,7 +47,7 @@ SRCS += sha3.c
SRCS += aescrypt.c aeskey.c aestab.c aes_modes.c
SRCS += ed25519-donna/ed25519.c
SRCS += curve25519-donna/curve25519.c
SRCS += blake2s.c
SRCS += blake2b.c blake2s.c
OBJS = $(SRCS:.c=.o)

2
README.md
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@ -19,7 +19,7 @@ These include:
- RIPEMD-160
- SHA256/SHA512
- SHA3/Keccak
- BLAKE2s
- BLAKE2s/Blake2b
- unit tests (using Check - check.sf.net; in tests.c)
- tests against OpenSSL (in test-openssl.c)

39
blake2_common.h Normal file
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@ -0,0 +1,39 @@
static inline uint32_t load32( const void *src )
{
uint32_t w;
memcpy(&w, src, sizeof w);
return w;
}
static inline uint64_t load64( const void *src )
{
uint64_t w;
memcpy(&w, src, sizeof w);
return w;
}
static inline void store16( void *dst, uint16_t w )
{
memcpy(dst, &w, sizeof w);
}
static inline void store32( void *dst, uint32_t w )
{
memcpy(dst, &w, sizeof w);
}
static inline void store64( void *dst, uint64_t w )
{
memcpy(dst, &w, sizeof w);
}
static inline uint32_t rotr32( const uint32_t w, const unsigned c )
{
return ( w >> c ) | ( w << ( 32 - c ) );
}
static inline uint64_t rotr64( const uint64_t w, const unsigned c )
{
return ( w >> c ) | ( w << ( 64 - c ) );
}

303
blake2b.c Normal file
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@ -0,0 +1,303 @@
/*
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 <string.h>
#include "macros.h"
#include "blake2b.h"
#include "blake2_common.h"
typedef 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 */
} __attribute__((packed)) blake2b_param;
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;
}
/* Sequential blake2b initialization */
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_InitKey( 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 );
MEMSET_BZERO( 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 );
MEMSET_BZERO(buffer, sizeof(buffer));
return 0;
}
int blake2b(const uint8_t *msg, uint32_t msg_len, void *out, size_t outlen)
{
BLAKE2B_CTX ctx;
if (0 != blake2b_Init(&ctx, outlen)) return -1;
if (0 != blake2b_Update(&ctx, msg, msg_len)) return -1;
if (0 != blake2b_Final(&ctx, out, outlen)) return -1;
return 0;
}
int blake2b_Key(const uint8_t *msg, uint32_t msg_len, const void *key, size_t keylen, void *out, size_t outlen)
{
BLAKE2B_CTX ctx;
if (0 != blake2b_InitKey(&ctx, outlen, key, keylen)) return -1;
if (0 != blake2b_Update(&ctx, msg, msg_len)) return -1;
if (0 != blake2b_Final(&ctx, out, outlen)) return -1;
return 0;
}

37
blake2b.h Normal file
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@ -0,0 +1,37 @@
#ifndef __BLAKE2B_H__
#define __BLAKE2B_H__
#include <stdint.h>
#include <stddef.h>
enum blake2b_constant
{
BLAKE2B_BLOCKBYTES = 128,
BLAKE2B_OUTBYTES = 64,
BLAKE2B_KEYBYTES = 64,
BLAKE2B_SALTBYTES = 16,
BLAKE2B_PERSONALBYTES = 16
};
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;
#define BLAKE2B_CTX blake2b_state
int blake2b_Init(blake2b_state *S, size_t outlen);
int blake2b_InitKey(blake2b_state *S, size_t outlen, const void *key, size_t keylen);
int blake2b_Update(blake2b_state *S, const void *pin, size_t inlen);
int blake2b_Final(blake2b_state *S, void *out, size_t outlen);
int blake2b(const uint8_t *msg, uint32_t msg_len, void *out, size_t outlen);
int blake2b_Key(const uint8_t *msg, uint32_t msg_len, const void *key, size_t keylen, void *out, size_t outlen);
#endif

24
blake2s.c
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@ -17,6 +17,7 @@
#include "macros.h"
#include "blake2s.h"
#include "blake2_common.h"
typedef struct blake2s_param__
{
@ -54,28 +55,6 @@ static const uint8_t blake2s_sigma[10][16] =
{ 10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13 , 0 } ,
};
static inline uint32_t load32( const void *src )
{
uint32_t w;
memcpy(&w, src, sizeof w);
return w;
}
static inline void store16( void *dst, uint16_t w )
{
memcpy(dst, &w, sizeof w);
}
static inline void store32( void *dst, uint32_t w )
{
memcpy(dst, &w, sizeof w);
}
static inline uint32_t rotr32( const uint32_t w, const unsigned c )
{
return ( w >> c ) | ( w << ( 32 - c ) );
}
static void blake2s_set_lastnode( blake2s_state *S )
{
S->f[1] = (uint32_t)-1;
@ -130,7 +109,6 @@ 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;

26
tests.c
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@ -42,6 +42,7 @@
#include "rand.h"
#include "sha2.h"
#include "sha3.h"
#include "blake2b.h"
#include "blake2s.h"
#include "curves.h"
#include "secp256k1.h"
@ -1865,6 +1866,28 @@ START_TEST(test_sha3_512)
}
END_TEST
// test vectors from https://raw.githubusercontent.com/BLAKE2/BLAKE2/master/testvectors/blake2b-kat.txt
START_TEST(test_blake2b)
{
uint8_t key[BLAKE2B_KEYBYTES];
memcpy(key, fromhex("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f"), BLAKE2B_KEYBYTES);
uint8_t digest[BLAKE2B_OUTBYTES];
blake2b_Key((uint8_t *)"", 0, key, BLAKE2B_KEYBYTES, digest, BLAKE2B_OUTBYTES);
ck_assert_mem_eq(digest, fromhex("10ebb67700b1868efb4417987acf4690ae9d972fb7a590c2f02871799aaa4786b5e996e8f0f4eb981fc214b005f42d2ff4233499391653df7aefcbc13fc51568"), BLAKE2B_OUTBYTES);
blake2b_Key(fromhex("000102"), 3, key, BLAKE2B_KEYBYTES, digest, BLAKE2B_OUTBYTES);
ck_assert_mem_eq(digest, fromhex("33d0825dddf7ada99b0e7e307104ad07ca9cfd9692214f1561356315e784f3e5a17e364ae9dbb14cb2036df932b77f4b292761365fb328de7afdc6d8998f5fc1"), BLAKE2B_OUTBYTES);
blake2b_Key(fromhex("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f3031323334353637"), 56, key, BLAKE2B_KEYBYTES, digest, BLAKE2B_OUTBYTES);
ck_assert_mem_eq(digest, fromhex("f8f3726ac5a26cc80132493a6fedcb0e60760c09cfc84cad178175986819665e76842d7b9fedf76dddebf5d3f56faaad4477587af21606d396ae570d8e719af2"), BLAKE2B_OUTBYTES);
blake2b_Key(fromhex("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f404142434445464748494a4b4c4d4e4f505152535455565758595a5b5c5d5e5f606162636465666768696a6b6c6d6e6f"), 112, key, BLAKE2B_KEYBYTES, digest, BLAKE2B_OUTBYTES);
ck_assert_mem_eq(digest, fromhex("227e3aed8d2cb10b918fcb04f9de3e6d0a57e08476d93759cd7b2ed54a1cbf0239c528fb04bbf288253e601d3bc38b21794afef90b17094a182cac557745e75f"), BLAKE2B_OUTBYTES);
}
END_TEST
// test vectors from https://raw.githubusercontent.com/BLAKE2/BLAKE2/master/testvectors/blake2s-kat.txt
START_TEST(test_blake2s)
{
@ -2969,7 +2992,8 @@ Suite *test_suite(void)
tcase_add_test(tc, test_sha3_512);
suite_add_tcase(s, tc);
tc = tcase_create("blake2s");
tc = tcase_create("blake2");
tcase_add_test(tc, test_blake2b);
tcase_add_test(tc, test_blake2s);
suite_add_tcase(s, tc);