From 7d630186d988e2c35068dbb13a96e63af1c96856 Mon Sep 17 00:00:00 2001 From: Frank Denis Date: Mon, 15 Sep 2014 11:33:07 -0700 Subject: [PATCH] Take blake2s off the tree until we actually use it --- .../blake2/ref/blake2s-ref.c | 359 ------------------ 1 file changed, 359 deletions(-) delete mode 100644 src/libsodium/crypto_generichash/blake2/ref/blake2s-ref.c diff --git a/src/libsodium/crypto_generichash/blake2/ref/blake2s-ref.c b/src/libsodium/crypto_generichash/blake2/ref/blake2s-ref.c deleted file mode 100644 index ee961989..00000000 --- a/src/libsodium/crypto_generichash/blake2/ref/blake2s-ref.c +++ /dev/null @@ -1,359 +0,0 @@ -/* - BLAKE2 reference source code package - reference C implementations - - Written in 2012 by Samuel Neves - - 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 . -*/ - -#include -#include -#include - -#include "crypto_generichash_blake2b.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 inline int blake2s_set_lastnode( blake2s_state *S ) -{ - S->f[1] = ~0U; - return 0; -} -#if 0 -static inline int blake2s_clear_lastnode( blake2s_state *S ) -{ - S->f[1] = 0U; - return 0; -} -#endif -/* Some helper functions, not necessarily useful */ -static inline int blake2s_set_lastblock( blake2s_state *S ) -{ - if( S->last_node ) blake2s_set_lastnode( S ); - - S->f[0] = ~0U; - return 0; -} -#if 0 -static inline int blake2s_clear_lastblock( blake2s_state *S ) -{ - if( S->last_node ) blake2s_clear_lastnode( S ); - - S->f[0] = 0U; - return 0; -} -#endif -static inline int blake2s_increment_counter( blake2s_state *S, const uint32_t inc ) -{ - S->t[0] += inc; - S->t[1] += ( S->t[0] < inc ); - return 0; -} - -// Parameter-related functions -#if 0 -static inline int blake2s_param_set_digest_length( blake2s_param *P, const uint8_t digest_length ) -{ - P->digest_length = digest_length; - return 0; -} - -static inline int blake2s_param_set_fanout( blake2s_param *P, const uint8_t fanout ) -{ - P->fanout = fanout; - return 0; -} - -static inline int blake2s_param_set_max_depth( blake2s_param *P, const uint8_t depth ) -{ - P->depth = depth; - return 0; -} - -static inline int blake2s_param_set_leaf_length( blake2s_param *P, const uint32_t leaf_length ) -{ - store32( &P->leaf_length, leaf_length ); - return 0; -} - -static inline int blake2s_param_set_node_offset( blake2s_param *P, const uint64_t node_offset ) -{ - store48( P->node_offset, node_offset ); - return 0; -} - -static inline int blake2s_param_set_node_depth( blake2s_param *P, const uint8_t node_depth ) -{ - P->node_depth = node_depth; - return 0; -} - -static inline int blake2s_param_set_inner_length( blake2s_param *P, const uint8_t inner_length ) -{ - P->inner_length = inner_length; - return 0; -} -#endif -static inline int blake2s_param_set_salt( blake2s_param *P, const uint8_t salt[BLAKE2S_SALTBYTES] ) -{ - memcpy( P->salt, salt, BLAKE2S_SALTBYTES ); - return 0; -} - -static inline int blake2s_param_set_personal( blake2s_param *P, const uint8_t personal[BLAKE2S_PERSONALBYTES] ) -{ - memcpy( P->personal, personal, BLAKE2S_PERSONALBYTES ); - return 0; -} - -static inline int blake2s_init0( blake2s_state *S ) -{ - int i; - - memset( S, 0, sizeof( blake2s_state ) ); - - for( i = 0; i < 8; ++i ) S->h[i] = blake2s_IV[i]; - - return 0; -} - -/* init2 xors IV with input parameter block */ -int blake2s_init_param( blake2s_state *S, const blake2s_param *P ) -{ - size_t i; - const uint32_t *p; - - blake2s_init0( S ); - p = ( const uint32_t * )( P ); - - /* IV XOR ParamBlock */ - for( i = 0; i < 8; ++i ) - S->h[i] ^= load32( &p[i] ); - - return 0; -} - - -// Sequential blake2s initialization -int blake2s_init( blake2s_state *S, const uint8_t outlen ) -{ - blake2s_param P[1]; - - /* Move interval verification here? */ - if ( ( !outlen ) || ( outlen > BLAKE2S_OUTBYTES ) ) return -1; - - P->digest_length = outlen; - P->key_length = 0; - P->fanout = 1; - P->depth = 1; - store32( &P->leaf_length, 0 ); - store48( &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 blake2s_init_param( S, P ); -} - -int blake2s_init_key( blake2s_state *S, const uint8_t outlen, const void *key, const uint8_t keylen ) -{ - blake2s_param P[1]; - - if ( ( !outlen ) || ( outlen > BLAKE2S_OUTBYTES ) ) return -1; - - if ( !key || !keylen || keylen > BLAKE2S_KEYBYTES ) return -1; - - P->digest_length = outlen; - P->key_length = keylen; - P->fanout = 1; - P->depth = 1; - store32( &P->leaf_length, 0 ); - store48( &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( 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; -} - -static int blake2s_compress( blake2s_state *S, const uint8_t block[BLAKE2S_BLOCKBYTES] ) -{ - uint32_t m[16]; - uint32_t v[16]; - size_t i; - - for( i = 0; i < 16; ++i ) - m[i] = load32( block + 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]; -#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) - 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 - return 0; -} - - -int blake2s_update( blake2s_state *S, const uint8_t *in, uint64_t inlen ) -{ - while( inlen > 0 ) - { - size_t left = S->buflen; - size_t fill = 2 * BLAKE2S_BLOCKBYTES - left; - - if( inlen > fill ) - { - memcpy( S->buf + left, in, fill ); // Fill buffer - S->buflen += fill; - blake2s_increment_counter( S, BLAKE2S_BLOCKBYTES ); - blake2s_compress( S, S->buf ); // Compress - memcpy( S->buf, S->buf + BLAKE2S_BLOCKBYTES, BLAKE2S_BLOCKBYTES ); // Shift buffer left - S->buflen -= BLAKE2S_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; -} - -int blake2s_final( blake2s_state *S, uint8_t *out, uint8_t outlen ) -{ - uint8_t buffer[BLAKE2S_OUTBYTES]; - int i; - - if( outlen > BLAKE2S_OUTBYTES ) { - return -1; - } - if( S->buflen > BLAKE2S_BLOCKBYTES ) - { - blake2s_increment_counter( S, BLAKE2S_BLOCKBYTES ); - blake2s_compress( S, S->buf ); - S->buflen -= BLAKE2S_BLOCKBYTES; - memcpy( S->buf, S->buf + BLAKE2S_BLOCKBYTES, S->buflen ); - } - - blake2s_increment_counter( S, ( uint32_t )S->buflen ); - blake2s_set_lastblock( S ); - memset( S->buf + S->buflen, 0, 2 * 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 ); - return 0; -} - -int blake2s( uint8_t *out, const void *in, const void *key, const uint8_t outlen, const uint64_t inlen, uint8_t keylen ) -{ - blake2s_state S[1]; - - /* Verify parameters */ - if ( NULL == in ) return -1; - - if ( NULL == out ) return -1; - - if ( NULL == key ) keylen = 0; /* Fail here instead if keylen != 0 and key == NULL? */ - - 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; -}