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authorMounir IDRASSI <mounir.idrassi@idrix.fr>2022-03-21 00:23:48 +0100
committerMounir IDRASSI <mounir.idrassi@idrix.fr>2022-03-21 01:18:55 +0100
commita239789317646e3b0fa69a48af97144c49d67c79 (patch)
tree2a087d1029f66b2b3b80257c0a639f50f8eca180 /src/Crypto/blake2s-ref.c
parenta57a79c61da52b84236a4641ac23b2924fff88b6 (diff)
downloadVeraCrypt-a239789317646e3b0fa69a48af97144c49d67c79.tar.gz
VeraCrypt-a239789317646e3b0fa69a48af97144c49d67c79.zip
Add missing Blake2s source files
Diffstat (limited to 'src/Crypto/blake2s-ref.c')
-rw-r--r--src/Crypto/blake2s-ref.c336
1 files changed, 336 insertions, 0 deletions
diff --git a/src/Crypto/blake2s-ref.c b/src/Crypto/blake2s-ref.c
new file mode 100644
index 00000000..435630b9
--- /dev/null
+++ b/src/Crypto/blake2s-ref.c
@@ -0,0 +1,336 @@
+/*
+ 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.
+*/
+
+/* Adapted for VeraCrypt */
+
+#include <stdlib.h>
+#include <STRING.H>
+
+#include "blake2.h"
+
+#pragma optimize ("tl", on)
+
+#pragma intrinsic(_lrotr)
+#pragma intrinsic( memcpy )
+#pragma intrinsic( memset )
+
+static const uint32 blake2s_IV[8] =
+{
+ 0x6A09E667UL, 0xBB67AE85UL, 0x3C6EF372UL, 0xA54FF53AUL,
+ 0x510E527FUL, 0x9B05688CUL, 0x1F83D9ABUL, 0x5BE0CD19UL
+};
+
+static const uint8 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)-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)-1;
+}
+
+static void blake2s_increment_counter( blake2s_state *S, const uint32 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 */
+void blake2s_init_param( blake2s_state *S, const blake2s_param *P )
+{
+ const unsigned char *p = ( const unsigned char * )( P );
+ size_t i;
+ uint32 w;
+
+ blake2s_init0( S );
+
+ /* IV XOR ParamBlock */
+ for( i = 0; i < 8; ++i )
+ {
+ memcpy (&w, &p[i * 4], sizeof (w));
+ S->h[i] ^= w;
+ }
+
+ S->outlen = P->digest_length;
+}
+
+
+/* Sequential blake2s initialization */
+void blake2s_init( blake2s_state *S )
+{
+ blake2s_param P[1];
+
+ P->digest_length = 32;
+ P->key_length = 0;
+ P->fanout = 1;
+ P->depth = 1;
+ P->leaf_length = 0;
+ P->node_offset = 0;
+ 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 ) );
+ blake2s_init_param( S, P );
+}
+
+#ifndef TC_MINIMIZE_CODE_SIZE
+#define G(r,i,a,b,c,d) \
+ do { \
+ a = a + b + m[blake2s_sigma[r][2*i+0]]; \
+ d = _lrotr(d ^ a, 16); \
+ c = c + d; \
+ b = _lrotr(b ^ c, 12); \
+ a = a + b + m[blake2s_sigma[r][2*i+1]]; \
+ d = _lrotr(d ^ a, 8); \
+ c = c + d; \
+ b = _lrotr(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)
+#else
+#define G_BASE(r,i,a,b,c,d) \
+ do { \
+ v[a] = v[a] + v[b] + m[blake2s_sigma[r][2*i+0]]; \
+ v[d] = _lrotr(v[d] ^ v[a], 16); \
+ v[c] = v[c] + v[d]; \
+ v[b] = _lrotr(v[b] ^ v[c], 12); \
+ v[a] = v[a] + v[b] + m[blake2s_sigma[r][2*i+1]]; \
+ v[d] = _lrotr(v[d] ^ v[a], 8); \
+ v[c] = v[c] + v[d]; \
+ v[b] = _lrotr(v[b] ^ v[c], 7); \
+ } while(0)
+
+static void G(unsigned char r, unsigned char i, uint32* m, uint32* v, unsigned char a, unsigned char b, unsigned char c, unsigned char d)
+{
+ G_BASE(r,i,a,b,c,d);
+}
+
+static void round_base (unsigned char r, uint32* m, uint32* v)
+{
+ G(r,0,m,v, 0, 4, 8, 12);
+ G(r,1,m,v, 1, 5, 9,13);
+ G(r,2,m,v, 2, 6,10,14);
+ G(r,3,m,v, 3, 7,11,15);
+ G(r,4,m,v, 0, 5,10,15);
+ G(r,5,m,v, 1, 6,11,12);
+ G(r,6,m,v, 2, 7, 8,13);
+ G(r,7,m,v, 3, 4, 9,14);
+}
+
+#define ROUND(r) round_base(r,m,v)
+#endif
+static void blake2s_compress( blake2s_state *S, const uint8 in[BLAKE2S_BLOCKBYTES] )
+{
+ uint32 m[16];
+ uint32 v[16];
+ int i;
+
+ for( i = 0; i < 16; ++i ) {
+ memcpy (&m[i], in + i * sizeof( m[i] ), sizeof(uint32));
+ }
+
+ 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
+
+void 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;
+ }
+}
+
+int blake2s_final( blake2s_state *S, unsigned char *out )
+{
+ int i;
+
+ if( blake2s_is_lastblock( S ) )
+ return -1;
+
+ blake2s_increment_counter( S, ( uint32 )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 */
+ memcpy( out + sizeof( S->h[i] ) * i, &S->h[i], sizeof(uint32) );
+
+ 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 key[BLAKE2S_KEYBYTES];
+ uint8 buf[BLAKE2_KAT_LENGTH];
+ size_t i, step;
+
+ for( i = 0; i < BLAKE2S_KEYBYTES; ++i )
+ key[i] = ( uint8 )i;
+
+ for( i = 0; i < BLAKE2_KAT_LENGTH; ++i )
+ buf[i] = ( uint8 )i;
+
+ /* Test simple API */
+ for( i = 0; i < BLAKE2_KAT_LENGTH; ++i )
+ {
+ uint8 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 hash[BLAKE2S_OUTBYTES];
+ blake2s_state S;
+ uint8 * 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