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Unified Diff: Modules/_blake2/impl/blake2s.c

Issue 26798: add BLAKE2 to hashlib
Patch Set: Created 3 years, 1 month ago
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new file mode 100644
index 0000000000000000000000000000000000000000..030a85e6ce4e2dd8afa0e0e82c428ac1df1bada8
--- /dev/null
+++ b/Modules/_blake2/impl/blake2s.c
@@ -0,0 +1,431 @@
+/*
+ BLAKE2 reference source code package - optimized 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"
+
+#include "blake2-config.h"
+
+
+#include <emmintrin.h>
+#if defined(HAVE_SSSE3)
+#include <tmmintrin.h>
+#endif
+#if defined(HAVE_SSE41)
+#include <smmintrin.h>
+#endif
+#if defined(HAVE_AVX)
+#include <immintrin.h>
+#endif
+#if defined(HAVE_XOP)
+#include <x86intrin.h>
+#endif
+
+#include "blake2s-round.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 } ,
+};
+
+
+/* Some helper functions, not necessarily useful */
+BLAKE2_LOCAL_INLINE(int) blake2s_set_lastnode( blake2s_state *S )
+{
+ S->f[1] = -1;
+ return 0;
+}
+
+BLAKE2_LOCAL_INLINE(int) blake2s_clear_lastnode( blake2s_state *S )
+{
+ S->f[1] = 0;
+ return 0;
+}
+
+BLAKE2_LOCAL_INLINE(int) blake2s_is_lastblock( const blake2s_state *S )
+{
+ return S->f[0] != 0;
+}
+
+BLAKE2_LOCAL_INLINE(int) blake2s_set_lastblock( blake2s_state *S )
+{
+ if( S->last_node ) blake2s_set_lastnode( S );
+
+ S->f[0] = -1;
+ return 0;
+}
+
+BLAKE2_LOCAL_INLINE(int) blake2s_clear_lastblock( blake2s_state *S )
+{
+ if( S->last_node ) blake2s_clear_lastnode( S );
+
+ S->f[0] = 0;
+ return 0;
+}
+
+BLAKE2_LOCAL_INLINE(int) blake2s_increment_counter( blake2s_state *S, const uint32_t inc )
+{
+ uint64_t t = ( ( uint64_t )S->t[1] << 32 ) | S->t[0];
+ t += inc;
+ S->t[0] = ( uint32_t )( t >> 0 );
+ S->t[1] = ( uint32_t )( t >> 32 );
+ return 0;
+}
+
+
+/* Parameter-related functions */
+BLAKE2_LOCAL_INLINE(int) blake2s_param_set_digest_length( blake2s_param *P, const uint8_t digest_length )
+{
+ P->digest_length = digest_length;
+ return 0;
+}
+
+BLAKE2_LOCAL_INLINE(int) blake2s_param_set_fanout( blake2s_param *P, const uint8_t fanout )
+{
+ P->fanout = fanout;
+ return 0;
+}
+
+BLAKE2_LOCAL_INLINE(int) blake2s_param_set_max_depth( blake2s_param *P, const uint8_t depth )
+{
+ P->depth = depth;
+ return 0;
+}
+
+BLAKE2_LOCAL_INLINE(int) blake2s_param_set_leaf_length( blake2s_param *P, const uint32_t leaf_length )
+{
+ P->leaf_length = leaf_length;
+ return 0;
+}
+
+BLAKE2_LOCAL_INLINE(int) blake2s_param_set_node_offset( blake2s_param *P, const uint64_t node_offset )
+{
+ store48( P->node_offset, node_offset );
+ return 0;
+}
+
+BLAKE2_LOCAL_INLINE(int) blake2s_param_set_node_depth( blake2s_param *P, const uint8_t node_depth )
+{
+ P->node_depth = node_depth;
+ return 0;
+}
+
+BLAKE2_LOCAL_INLINE(int) blake2s_param_set_inner_length( blake2s_param *P, const uint8_t inner_length )
+{
+ P->inner_length = inner_length;
+ return 0;
+}
+
+BLAKE2_LOCAL_INLINE(int) blake2s_param_set_salt( blake2s_param *P, const uint8_t salt[BLAKE2S_SALTBYTES] )
+{
+ memcpy( P->salt, salt, BLAKE2S_SALTBYTES );
+ return 0;
+}
+
+BLAKE2_LOCAL_INLINE(int) blake2s_param_set_personal( blake2s_param *P, const uint8_t personal[BLAKE2S_PERSONALBYTES] )
+{
+ memcpy( P->personal, personal, BLAKE2S_PERSONALBYTES );
+ return 0;
+}
+
+BLAKE2_LOCAL_INLINE(int) blake2s_init0( blake2s_state *S )
+{
+ memset( S, 0, sizeof( blake2s_state ) );
+
+ for( int 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 )
+{
+ /*blake2s_init0( S ); */
+ const uint8_t * v = ( const uint8_t * )( blake2s_IV );
+ const uint8_t * p = ( const uint8_t * )( P );
+ uint8_t * h = ( uint8_t * )( S->h );
+ /* IV XOR ParamBlock */
+ memset( S, 0, sizeof( blake2s_state ) );
+
+ for( int i = 0; i < BLAKE2S_OUTBYTES; ++i ) h[i] = v[i] ^ p[i];
+
+ return 0;
+}
+
+
+/* Some sort of default parameter block initialization, for sequential blake2s */
+int blake2s_init( blake2s_state *S, const uint8_t outlen )
+{
+ const blake2s_param P =
+ {
+ outlen,
+ 0,
+ 1,
+ 1,
+ 0,
+ {0},
+ 0,
+ 0,
+ {0},
+ {0}
+ };
+ /* Move interval verification here? */
+ if ( ( !outlen ) || ( outlen > BLAKE2S_OUTBYTES ) ) return -1;
+ return blake2s_init_param( S, &P );
+}
+
+
+int blake2s_init_key( blake2s_state *S, const uint8_t outlen, const void *key, const uint8_t keylen )
+{
+ const blake2s_param P =
+ {
+ outlen,
+ keylen,
+ 1,
+ 1,
+ 0,
+ {0},
+ 0,
+ 0,
+ {0},
+ {0}
+ };
+
+ /* Move interval verification here? */
+ if ( ( !outlen ) || ( outlen > BLAKE2S_OUTBYTES ) ) return -1;
+
+ if ( ( !key ) || ( !keylen ) || keylen > BLAKE2S_KEYBYTES ) return -1;
+
+ 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;
+}
+
+
+BLAKE2_LOCAL_INLINE(int) blake2s_compress( blake2s_state *S, const uint8_t block[BLAKE2S_BLOCKBYTES] )
+{
+ __m128i row1, row2, row3, row4;
+ __m128i buf1, buf2, buf3, buf4;
+#if defined(HAVE_SSE41)
+ __m128i t0, t1;
+#if !defined(HAVE_XOP)
+ __m128i t2;
+#endif
+#endif
+ __m128i ff0, ff1;
+#if defined(HAVE_SSSE3) && !defined(HAVE_XOP)
+ const __m128i r8 = _mm_set_epi8( 12, 15, 14, 13, 8, 11, 10, 9, 4, 7, 6, 5, 0, 3, 2, 1 );
+ const __m128i r16 = _mm_set_epi8( 13, 12, 15, 14, 9, 8, 11, 10, 5, 4, 7, 6, 1, 0, 3, 2 );
+#endif
+#if defined(HAVE_SSE41)
+ const __m128i m0 = LOADU( block + 00 );
+ const __m128i m1 = LOADU( block + 16 );
+ const __m128i m2 = LOADU( block + 32 );
+ const __m128i m3 = LOADU( block + 48 );
+#else
+ const uint32_t m0 = ( ( uint32_t * )block )[ 0];
+ const uint32_t m1 = ( ( uint32_t * )block )[ 1];
+ const uint32_t m2 = ( ( uint32_t * )block )[ 2];
+ const uint32_t m3 = ( ( uint32_t * )block )[ 3];
+ const uint32_t m4 = ( ( uint32_t * )block )[ 4];
+ const uint32_t m5 = ( ( uint32_t * )block )[ 5];
+ const uint32_t m6 = ( ( uint32_t * )block )[ 6];
+ const uint32_t m7 = ( ( uint32_t * )block )[ 7];
+ const uint32_t m8 = ( ( uint32_t * )block )[ 8];
+ const uint32_t m9 = ( ( uint32_t * )block )[ 9];
+ const uint32_t m10 = ( ( uint32_t * )block )[10];
+ const uint32_t m11 = ( ( uint32_t * )block )[11];
+ const uint32_t m12 = ( ( uint32_t * )block )[12];
+ const uint32_t m13 = ( ( uint32_t * )block )[13];
+ const uint32_t m14 = ( ( uint32_t * )block )[14];
+ const uint32_t m15 = ( ( uint32_t * )block )[15];
+#endif
+ row1 = ff0 = LOADU( &S->h[0] );
+ row2 = ff1 = LOADU( &S->h[4] );
+ row3 = _mm_setr_epi32( 0x6A09E667, 0xBB67AE85, 0x3C6EF372, 0xA54FF53A );
+ row4 = _mm_xor_si128( _mm_setr_epi32( 0x510E527F, 0x9B05688C, 0x1F83D9AB, 0x5BE0CD19 ), LOADU( &S->t[0] ) );
+ ROUND( 0 );
+ ROUND( 1 );
+ ROUND( 2 );
+ ROUND( 3 );
+ ROUND( 4 );
+ ROUND( 5 );
+ ROUND( 6 );
+ ROUND( 7 );
+ ROUND( 8 );
+ ROUND( 9 );
+ STOREU( &S->h[0], _mm_xor_si128( ff0, _mm_xor_si128( row1, row3 ) ) );
+ STOREU( &S->h[4], _mm_xor_si128( ff1, _mm_xor_si128( row2, row4 ) ) );
+ return 0;
+}
+
+/* inlen now in bytes */
+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;
+}
+
+/* Is this correct? */
+int blake2s_final( blake2s_state *S, uint8_t *out, uint8_t outlen )
+{
+ uint8_t buffer[BLAKE2S_OUTBYTES] = {0};
+
+ if( outlen > BLAKE2S_OUTBYTES )
+ return -1;
+
+ if( blake2s_is_lastblock( S ) )
+ 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( int 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;
+}
+
+/* inlen, at least, should be uint64_t. Others can be size_t. */
+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 && 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, in, NULL, BLAKE2S_OUTBYTES, inlen, 0 );
+}
+#endif
+
+#if defined(BLAKE2S_SELFTEST)
+#include <string.h>
+#include "blake2-kat.h"
+int main( int argc, char **argv )
+{
+ uint8_t key[BLAKE2S_KEYBYTES];
+ uint8_t buf[KAT_LENGTH];
+
+ for( size_t i = 0; i < BLAKE2S_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[BLAKE2S_OUTBYTES];
+
+ if( blake2s( hash, buf, key, BLAKE2S_OUTBYTES, i, BLAKE2S_KEYBYTES ) < 0 ||
+ 0 != memcmp( hash, blake2s_keyed_kat[i], BLAKE2S_OUTBYTES ) )
+ {
+ puts( "error" );
+ return -1;
+ }
+ }
+
+ puts( "ok" );
+ return 0;
+}
+#endif
+
+
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