Function blake2s_compress

Libraries/unrar/blake2s.cpp:86–120

static void blake2s_compress( blake2s_state *S, const byte block[BLAKE2S_BLOCKBYTES] )
{
  uint32 m[16];
  uint32 v[16];

  for( size_t i = 0; i < 16; ++i )
    m[i] = RawGet4( block + i * 4 );

  for( size_t 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];

  for ( uint r = 0; r <= 9; ++r ) // No gain on i7 if unrolled, but exe size grows.
  {
    G(r,0,m,v[ 0],v[ 4],v[ 8],v[12]);
    G(r,1,m,v[ 1],v[ 5],v[ 9],v[13]);
    G(r,2,m,v[ 2],v[ 6],v[10],v[14]);
    G(r,3,m,v[ 3],v[ 7],v[11],v[15]);
    G(r,4,m,v[ 0],v[ 5],v[10],v[15]);
    G(r,5,m,v[ 1],v[ 6],v[11],v[12]);
    G(r,6,m,v[ 2],v[ 7],v[ 8],v[13]);
    G(r,7,m,v[ 3],v[ 4],v[ 9],v[14]);
  }

  for( size_t i = 0; i < 8; ++i )
    S->h[i] = S->h[i] ^ v[i] ^ v[i + 8];
}


void blake2s_update( blake2s_state *S, const byte *in, size_t inlen )