v3.11.9

algo/groestl/groestl256-hash-4way.c

@@ -23,7 +23,6 @@ int groestl256_4way_init( groestl256_4way_context* ctx, uint64_t hashlen )
   int i;
 
   ctx->hashlen = hashlen;
-  SET_CONSTANTS();
 
   if (ctx->chaining == NULL || ctx->buffer == NULL)
     return 1;
@@ -36,9 +35,6 @@ int groestl256_4way_init( groestl256_4way_context* ctx, uint64_t hashlen )
 
   // The only non-zero in the IV is len. It can be hard coded.
   ctx->chaining[ 3 ] = m512_const2_64( 0, 0x0100000000000000 );
-//  uint64_t len = U64BIG((uint64_t)LENGTH);
-//  ctx->chaining[ COLS/2 -1 ] = _mm512_set4_epi64( len, 0, len, 0 );
-//  INIT256_4way(ctx->chaining);
 
   ctx->buf_ptr = 0;
   ctx->rem_ptr = 0;
@@ -46,6 +42,77 @@ int groestl256_4way_init( groestl256_4way_context* ctx, uint64_t hashlen )
   return 0;
 }
 
+int groestl256_4way_full( groestl256_4way_context* ctx, void* output,
+                                const void* input, uint64_t databitlen )
+{
+   const int len = (int)databitlen / 128;
+   const int hashlen_m128i = 32 / 16;   // bytes to __m128i
+   const int hash_offset = SIZE256 - hashlen_m128i;
+   int rem = ctx->rem_ptr;
+   int blocks = len / SIZE256;
+   __m512i* in = (__m512i*)input;
+   int i;
+
+  if (ctx->chaining == NULL || ctx->buffer == NULL)
+    return 1;
+
+  for ( i = 0; i < SIZE256; i++ )
+  {
+     ctx->chaining[i] = m512_zero;
+     ctx->buffer[i]   = m512_zero;
+  }
+
+  // The only non-zero in the IV is len. It can be hard coded.
+  ctx->chaining[ 3 ] = m512_const2_64( 0, 0x0100000000000000 );
+  ctx->buf_ptr = 0;
+  ctx->rem_ptr = 0;
+   
+   // --- update ---
+
+   // digest any full blocks, process directly from input 
+   for ( i = 0; i < blocks; i++ )
+      TF512_4way( ctx->chaining, &in[ i * SIZE256 ] );
+   ctx->buf_ptr = blocks * SIZE256;
+
+   // copy any remaining data to buffer, it may already contain data
+   // from a previous update for a midstate precalc
+   for ( i = 0; i < len % SIZE256; i++ )
+       ctx->buffer[ rem + i ] = in[ ctx->buf_ptr + i ];
+   i += rem;    // use i as rem_ptr in final
+
+   //--- final ---
+
+   blocks++;      // adjust for final block
+
+   if ( i == SIZE256 - 1 )
+   {        
+       // only 1 vector left in buffer, all padding at once
+      ctx->buffer[i] = m512_const2_64( (uint64_t)blocks << 56, 0x80 ); 
+   }   
+   else
+   {
+       // add first padding
+       ctx->buffer[i] = m512_const4_64( 0, 0x80, 0, 0x80 );
+       // add zero padding
+       for ( i += 1; i < SIZE256 - 1; i++ )
+           ctx->buffer[i] = m512_zero;
+
+       // add length padding, second last byte is zero unless blocks > 255
+      ctx->buffer[i] = m512_const2_64( (uint64_t)blocks << 56, 0 );
+   }
+
+// digest final padding block and do output transform
+   TF512_4way( ctx->chaining, ctx->buffer );
+
+   OF512_4way( ctx->chaining );
+
+   // store hash result in output 
+   for ( i = 0; i < hashlen_m128i; i++ )
+      casti_m512i( output, i ) = ctx->chaining[ hash_offset + i ];
+
+   return 0;
+}
+
 int groestl256_4way_update_close( groestl256_4way_context* ctx, void* output,
                                 const void* input, uint64_t databitlen )
 {
@@ -75,11 +142,11 @@ int groestl256_4way_update_close( groestl256_4way_context* ctx, void* output,
    blocks++;      // adjust for final block
 
    if ( i == SIZE256 - 1 )
-   {        
+   {
        // only 1 vector left in buffer, all padding at once
        ctx->buffer[i] = m512_const1_128( _mm_set_epi8(
                       blocks, blocks>>8,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0x80 ) );
-   }   
+   }
    else
    {
        // add first padding