clean method
Clean up the internal state and reset hash object to its initial state.
Implementation
@override
void clean() {
  zero(_buffer);
  zero(_tempHi);
  zero(_tempLo);
  reset();
}
Clean up the internal state and reset hash object to its initial state.
@override
void clean() {
  zero(_buffer);
  zero(_tempHi);
  zero(_tempLo);
  reset();
}