+++ /dev/null
-/*
- BLAKE2 reference source code package - reference C implementations
-
- Written in 2012 by Samuel Neves <sneves@dei.uc.pt>
-
- To the extent possible under law, the author(s) have dedicated all copyright
- and related and neighboring rights to this software to the public domain
- worldwide. This software is distributed without any warranty.
-
- You should have received a copy of the CC0 Public Domain Dedication along with
- this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
-*/
-#pragma once
-#ifndef __BLAKE2_IMPL_H__
-#define __BLAKE2_IMPL_H__
-
-#include "config.h"
-#include <stdint.h>
-
-#if BYTE_ORDER == LITTLE_ENDIAN
-#define NATIVE_LITTLE_ENDIAN
-#endif
-
-static 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;
- uint32_t w = *p++;
- w |= ( uint32_t )( *p++ ) << 8;
- w |= ( uint32_t )( *p++ ) << 16;
- w |= ( uint32_t )( *p++ ) << 24;
- return w;
-#endif
-}
-
-static 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;
- uint64_t w = *p++;
- w |= ( uint64_t )( *p++ ) << 8;
- w |= ( uint64_t )( *p++ ) << 16;
- w |= ( uint64_t )( *p++ ) << 24;
- w |= ( uint64_t )( *p++ ) << 32;
- w |= ( uint64_t )( *p++ ) << 40;
- w |= ( uint64_t )( *p++ ) << 48;
- w |= ( uint64_t )( *p++ ) << 56;
- return w;
-#endif
-}
-
-static 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++ = ( uint8_t )w; w >>= 8;
- *p++ = ( uint8_t )w; w >>= 8;
- *p++ = ( uint8_t )w; w >>= 8;
- *p++ = ( uint8_t )w;
-#endif
-}
-
-static 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++ = ( uint8_t )w; w >>= 8;
- *p++ = ( uint8_t )w; w >>= 8;
- *p++ = ( uint8_t )w; w >>= 8;
- *p++ = ( uint8_t )w; w >>= 8;
- *p++ = ( uint8_t )w; w >>= 8;
- *p++ = ( uint8_t )w; w >>= 8;
- *p++ = ( uint8_t )w; w >>= 8;
- *p++ = ( uint8_t )w;
-#endif
-}
-
-static inline uint64_t load48( const void *src )
-{
- const uint8_t *p = ( const uint8_t * )src;
- uint64_t w = *p++;
- w |= ( uint64_t )( *p++ ) << 8;
- w |= ( uint64_t )( *p++ ) << 16;
- w |= ( uint64_t )( *p++ ) << 24;
- w |= ( uint64_t )( *p++ ) << 32;
- w |= ( uint64_t )( *p++ ) << 40;
- return w;
-}
-
-static inline void store48( void *dst, uint64_t w )
-{
- uint8_t *p = ( uint8_t * )dst;
- *p++ = ( uint8_t )w; w >>= 8;
- *p++ = ( uint8_t )w; w >>= 8;
- *p++ = ( uint8_t )w; w >>= 8;
- *p++ = ( uint8_t )w; w >>= 8;
- *p++ = ( uint8_t )w; w >>= 8;
- *p++ = ( uint8_t )w;
-}
-
-static inline uint32_t rotl32( const uint32_t w, const unsigned c )
-{
- return ( w << c ) | ( w >> ( 32 - c ) );
-}
-
-static inline uint64_t rotl64( const uint64_t w, const unsigned c )
-{
- return ( w << c ) | ( w >> ( 64 - c ) );
-}
-
-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 ) );
-}
-
-/* prevents compiler optimizing out memset() */
-static inline void secure_zero_memory( void *v, size_t n )
-{
- volatile uint8_t *p = ( volatile uint8_t * )v;
- while( n-- ) *p++ = 0;
-}
-
-#endif
-
+++ /dev/null
-/*
- BLAKE2 reference source code package - reference C implementations
-
- Written in 2012 by Samuel Neves <sneves@dei.uc.pt>
-
- To the extent possible under law, the author(s) have dedicated all copyright
- and related and neighboring rights to this software to the public domain
- worldwide. This software is distributed without any warranty.
-
- You should have received a copy of the CC0 Public Domain Dedication along with
- this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
-*/
-
-#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 inline int blake2b_set_lastnode( blake2b_state *S )
-{
- S->f[1] = ~0ULL;
- return 0;
-}
-
-static inline int blake2b_clear_lastnode( blake2b_state *S )
-{
- S->f[1] = 0ULL;
- return 0;
-}
-
-/* Some helper functions, not necessarily useful */
-static inline int blake2b_set_lastblock( blake2b_state *S )
-{
- if( S->last_node ) blake2b_set_lastnode( S );
-
- S->f[0] = ~0ULL;
- return 0;
-}
-
-static inline int blake2b_clear_lastblock( blake2b_state *S )
-{
- if( S->last_node ) blake2b_clear_lastnode( S );
-
- S->f[0] = 0ULL;
- return 0;
-}
-
-static inline int blake2b_increment_counter( blake2b_state *S, const uint64_t inc )
-{
- S->t[0] += inc;
- S->t[1] += ( S->t[0] < inc );
- return 0;
-}
-
-
-
-// Parameter-related functions
-static inline int blake2b_param_set_digest_length( blake2b_param *P, const uint8_t digest_length )
-{
- P->digest_length = digest_length;
- return 0;
-}
-
-static inline int blake2b_param_set_fanout( blake2b_param *P, const uint8_t fanout )
-{
- P->fanout = fanout;
- return 0;
-}
-
-static inline int blake2b_param_set_max_depth( blake2b_param *P, const uint8_t depth )
-{
- P->depth = depth;
- return 0;
-}
-
-static inline int blake2b_param_set_leaf_length( blake2b_param *P, const uint32_t leaf_length )
-{
- store32( &P->leaf_length, leaf_length );
- return 0;
-}
-
-static inline int blake2b_param_set_node_offset( blake2b_param *P, const uint64_t node_offset )
-{
- store64( &P->node_offset, node_offset );
- return 0;
-}
-
-static inline int blake2b_param_set_node_depth( blake2b_param *P, const uint8_t node_depth )
-{
- P->node_depth = node_depth;
- return 0;
-}
-
-static inline int blake2b_param_set_inner_length( blake2b_param *P, const uint8_t inner_length )
-{
- P->inner_length = inner_length;
- return 0;
-}
-
-static inline int blake2b_param_set_salt( blake2b_param *P, const uint8_t salt[BLAKE2B_SALTBYTES] )
-{
- memcpy( P->salt, salt, BLAKE2B_SALTBYTES );
- return 0;
-}
-
-static inline int blake2b_param_set_personal( blake2b_param *P, const uint8_t personal[BLAKE2B_PERSONALBYTES] )
-{
- memcpy( P->personal, personal, BLAKE2B_PERSONALBYTES );
- return 0;
-}
-
-static inline int blake2b_init0( blake2b_state *S )
-{
- memset( S, 0, sizeof( blake2b_state ) );
-
- for( int i = 0; i < 8; ++i ) S->h[i] = blake2b_IV[i];
-
- return 0;
-}
-
-/* init xors IV with input parameter block */
-int blake2b_init_param( blake2b_state *S, const blake2b_param *P )
-{
- blake2b_init0( S );
- const uint8_t *p = ( const uint8_t * )( P );
-
- /* IV XOR ParamBlock */
- for( size_t i = 0; i < 8; ++i )
- S->h[i] ^= load64( p + sizeof( S->h[i] ) * i );
-
- return 0;
-}
-
-
-
-int blake2b_init( blake2b_state *S, const uint8_t outlen )
-{
- blake2b_param P[1];
-
- if ( ( !outlen ) || ( outlen > BLAKE2B_OUTBYTES ) ) return -1;
-
- P->digest_length = outlen;
- P->key_length = 0;
- P->fanout = 1;
- P->depth = 1;
- store32( &P->leaf_length, 0 );
- store64( &P->node_offset, 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, const uint8_t outlen, const void *key, const uint8_t keylen )
-{
- blake2b_param P[1];
-
- if ( ( !outlen ) || ( outlen > BLAKE2B_OUTBYTES ) ) return -1;
-
- if ( !key || !keylen || keylen > BLAKE2B_KEYBYTES ) return -1;
-
- P->digest_length = outlen;
- P->key_length = keylen;
- P->fanout = 1;
- P->depth = 1;
- store32( &P->leaf_length, 0 );
- store64( &P->node_offset, 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;
-}
-
-static int blake2b_compress( blake2b_state *S, const uint8_t block[BLAKE2B_BLOCKBYTES] )
-{
- uint64_t m[16];
- uint64_t v[16];
- int 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] = S->t[0] ^ blake2b_IV[4];
- v[13] = S->t[1] ^ blake2b_IV[5];
- v[14] = S->f[0] ^ blake2b_IV[6];
- v[15] = S->f[1] ^ blake2b_IV[7];
-#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)
- 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
- return 0;
-}
-
-/* inlen now in bytes */
-int blake2b_update( blake2b_state *S, const uint8_t *in, uint64_t inlen )
-{
- while( inlen > 0 )
- {
- size_t left = S->buflen;
- size_t fill = 2 * BLAKE2B_BLOCKBYTES - left;
-
- if( inlen > fill )
- {
- memcpy( S->buf + left, in, fill ); // Fill buffer
- S->buflen += fill;
- blake2b_increment_counter( S, BLAKE2B_BLOCKBYTES );
- blake2b_compress( S, S->buf ); // Compress
- memcpy( S->buf, S->buf + BLAKE2B_BLOCKBYTES, BLAKE2B_BLOCKBYTES ); // Shift buffer left
- S->buflen -= BLAKE2B_BLOCKBYTES;
- in += fill;
- inlen -= fill;
- }
- else // inlen <= fill
- {
- memcpy( S->buf + left, in, inlen );
- S->buflen += inlen; // Be lazy, do not compress
- in += inlen;
- inlen -= inlen;
- }
- }
-
- return 0;
-}
-
-/* Is this correct? */
-int blake2b_final( blake2b_state *S, uint8_t *out, uint8_t outlen )
-{
- uint8_t buffer[BLAKE2B_OUTBYTES] = {0};
-
- if( outlen > BLAKE2B_OUTBYTES )
- return -1;
-
- if( S->buflen > BLAKE2B_BLOCKBYTES )
- {
- blake2b_increment_counter( S, BLAKE2B_BLOCKBYTES );
- blake2b_compress( S, S->buf );
- S->buflen -= BLAKE2B_BLOCKBYTES;
- memcpy( S->buf, S->buf + BLAKE2B_BLOCKBYTES, S->buflen );
- }
-
- blake2b_increment_counter( S, S->buflen );
- blake2b_set_lastblock( S );
- memset( S->buf + S->buflen, 0, 2 * BLAKE2B_BLOCKBYTES - S->buflen ); /* Padding */
- blake2b_compress( S, S->buf );
-
- for( int i = 0; i < 8; ++i ) /* Output full hash to temp buffer */
- store64( buffer + sizeof( S->h[i] ) * i, S->h[i] );
-
- memcpy( out, buffer, outlen );
- return 0;
-}
-
-/* inlen, at least, should be uint64_t. Others can be size_t. */
-int blake2b( uint8_t *out, const void *in, const void *key, const uint8_t outlen, const uint64_t inlen, uint8_t keylen )
-{
- blake2b_state S[1];
-
- /* Verify parameters */
- if ( NULL == in ) return -1;
-
- if ( NULL == out ) return -1;
-
- if( NULL == key ) keylen = 0;
-
- 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;
-}
-
-#if defined(BLAKE2B_SELFTEST)
-#include <string.h>
-#include "blake2-kat.h"
-int main( int argc, char **argv )
-{
- uint8_t key[BLAKE2B_KEYBYTES];
- uint8_t buf[KAT_LENGTH];
-
- for( size_t i = 0; i < BLAKE2B_KEYBYTES; ++i )
- key[i] = ( uint8_t )i;
-
- for( size_t i = 0; i < KAT_LENGTH; ++i )
- buf[i] = ( uint8_t )i;
-
- for( size_t i = 0; i < KAT_LENGTH; ++i )
- {
- uint8_t hash[BLAKE2B_OUTBYTES];
- blake2b( hash, buf, key, BLAKE2B_OUTBYTES, i, BLAKE2B_KEYBYTES );
-
- if( 0 != memcmp( hash, blake2b_keyed_kat[i], BLAKE2B_OUTBYTES ) )
- {
- puts( "error" );
- return -1;
- }
- }
-
- puts( "ok" );
- return 0;
-}
-#endif
-
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