SHA512_256Digest

//Simple example, hashing a string using Digest.digest helper function
auto sha = new SHA1Digest();
ubyte[] hash = sha.digest("abc");
//Let's get a hash string
assert(toHexString(hash) == "A9993E364706816ABA3E25717850C26C9CD0D89D");

//The same, but using SHA-224
auto sha224 = new SHA224Digest();
ubyte[] hash224 = sha224.digest("abc");
//Let's get a hash string
assert(toHexString(hash224) == "23097D223405D8228642A477BDA255B32AADBCE4BDA0B3F7E36C9DA7");

//Let's use the OOP features:
void test(Digest dig)
{
  dig.put(cast(ubyte)0);
}
auto sha = new SHA1Digest();
test(sha);

//Let's use a custom buffer:
ubyte[20] buf;
ubyte[] result = sha.finish(buf[]);
assert(toHexString(result) == "5BA93C9DB0CFF93F52B521D7420E43F6EDA2784F");