keccak

ubyte[5] source = [0xff, 0xa1, 0x12, 0x22, 0xff];
ubyte[256 / 8] result;
ubyte[256 / 8] result2;
assert(hash!(0x01, 256)(result.ptr, result.length, source.ptr, source.length) == 0);
assert(keccak!(256)(result2.ptr, result2.length, source.ptr, source.length) == 0);
assert(result[] == result2[]);