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package org.bouncycastle.crypto.test;
import java.io.UnsupportedEncodingException;
import org.bouncycastle.crypto.Digest;
import org.bouncycastle.crypto.digests.Blake2bDigest;
import org.bouncycastle.util.Arrays;
import org.bouncycastle.util.Strings;
import org.bouncycastle.util.encoders.Hex;
import org.bouncycastle.util.test.SimpleTest;
public class Blake2bDigestTest
extends SimpleTest
{
private static final String[][] keyedTestVectors =
{ // input/message, key, hash
// Vectors from BLAKE2 web site: https://blake2.net/blake2b-test.txt
{
"",
"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f",
"10ebb67700b1868efb4417987acf4690ae9d972fb7a590c2f02871799aaa4786b5e996e8f0f4eb981fc214b005f42d2ff4233499391653df7aefcbc13fc51568"},
{
"00",
"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f",
"961f6dd1e4dd30f63901690c512e78e4b45e4742ed197c3c5e45c549fd25f2e4187b0bc9fe30492b16b0d0bc4ef9b0f34c7003fac09a5ef1532e69430234cebd"},
{
"0001",
"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f",
"da2cfbe2d8409a0f38026113884f84b50156371ae304c4430173d08a99d9fb1b983164a3770706d537f49e0c916d9f32b95cc37a95b99d857436f0232c88a965"},
{
"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f404142434445464748494a4b4c4d",
"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f",
"f1aa2b044f8f0c638a3f362e677b5d891d6fd2ab0765f6ee1e4987de057ead357883d9b405b9d609eea1b869d97fb16d9b51017c553f3b93c0a1e0f1296fedcd"},
{
"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f404142434445464748494a4b4c4d4e4f505152535455565758595a5b5c5d5e5f606162636465666768696a6b6c6d6e6f707172737475767778797a7b7c7d7e7f808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9fa0a1a2a3",
"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f",
"c230f0802679cb33822ef8b3b21bf7a9a28942092901d7dac3760300831026cf354c9232df3e084d9903130c601f63c1f4a4a4b8106e468cd443bbe5a734f45f"},
{
"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f404142434445464748494a4b4c4d4e4f505152535455565758595a5b5c5d5e5f606162636465666768696a6b6c6d6e6f707172737475767778797a7b7c7d7e7f808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9fa0a1a2a3a4a5a6a7a8a9aaabacadaeafb0b1b2b3b4b5b6b7b8b9babbbcbdbebfc0c1c2c3c4c5c6c7c8c9cacbcccdcecfd0d1d2d3d4d5d6d7d8d9dadbdcdddedfe0e1e2e3e4e5e6e7e8e9eaebecedeeeff0f1f2f3f4f5f6f7f8f9fafbfcfdfe",
"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f",
"142709d62e28fcccd0af97fad0f8465b971e82201dc51070faa0372aa43e92484be1c1e73ba10906d5d1853db6a4106e0a7bf9800d373d6dee2d46d62ef2a461"}};
private final static String[][] unkeyedTestVectors =
{ // from: http://fossies.org/linux/john/src/rawBLAKE2_512_fmt_plug.c
// hash, input/message
// digests without leading $BLAKE2$
{
"4245af08b46fbb290222ab8a68613621d92ce78577152d712467742417ebc1153668f1c9e1ec1e152a32a9c242dc686d175e087906377f0c483c5be2cb68953e",
"blake2"},
{
"021ced8799296ceca557832ab941a50b4a11f83478cf141f51f933f653ab9fbcc05a037cddbed06e309bf334942c4e58cdf1a46e237911ccd7fcf9787cbc7fd0",
"hello world"},
{
"1f7d9b7c9a90f7bfc66e52b69f3b6c3befbd6aee11aac860e99347a495526f30c9e51f6b0db01c24825092a09dd1a15740f0ade8def87e60c15da487571bcef7",
"verystrongandlongpassword"},
{
"a8add4bdddfd93e4877d2746e62817b116364a1fa7bc148d95090bc7333b3673f82401cf7aa2e4cb1ecd90296e3f14cb5413f8ed77be73045b13914cdcd6a918",
"The quick brown fox jumps over the lazy dog"},
{
"786a02f742015903c6c6fd852552d272912f4740e15847618a86e217f71f5419d25e1031afee585313896444934eb04b903a685b1448b755d56f701afe9be2ce",
""},
{
"ba80a53f981c4d0d6a2797b69f12f6e94c212f14685ac4b74b12bb6fdbffa2d17d87c5392aab792dc252d5de4533cc9518d38aa8dbf1925ab92386edd4009923",
"abc"},
};
public String getName()
{
return "BLAKE2b";
}
private void offsetTest(
Digest digest,
byte[] input,
byte[] expected)
{
byte[] resBuf = new byte[expected.length + 11];
digest.update(input, 0, input.length);
digest.doFinal(resBuf, 11);
if (!areEqual(Arrays.copyOfRange(resBuf, 11, resBuf.length), expected))
{
fail("Offset failed got " + new String(Hex.encode(resBuf)));
}
}
public void performTest()
throws Exception
{
// test keyed test vectors:
Blake2bDigest blake2bkeyed = new Blake2bDigest(Hex.decode(keyedTestVectors[0][1]));
for (int tv = 0; tv < keyedTestVectors.length; tv++)
{
byte[] input = Hex.decode(keyedTestVectors[tv][0]);
blake2bkeyed.reset();
blake2bkeyed.update(input, 0, input.length);
byte[] keyedHash = new byte[64];
blake2bkeyed.doFinal(keyedHash, 0);
if (!Arrays.areEqual(Hex.decode(keyedTestVectors[tv][2]), keyedHash))
{
fail("BLAKE2b mismatch on test vector ",
keyedTestVectors[tv][2],
new String(Hex.encode(keyedHash)));
}
offsetTest(blake2bkeyed, input, keyedHash);
}
Blake2bDigest blake2bunkeyed = new Blake2bDigest();
// test unkeyed test vectors:
for (int i = 0; i < unkeyedTestVectors.length; i++)
{
try
{
// blake2bunkeyed.update(
// unkeyedTestVectors[i][1].getBytes("UTF-8"));
// test update(byte b)
byte[] unkeyedInput = unkeyedTestVectors[i][1]
.getBytes("UTF-8");
for (int j = 0; j < unkeyedInput.length; j++)
{
blake2bunkeyed.update(unkeyedInput[j]);
}
}
catch (UnsupportedEncodingException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
byte[] unkeyedHash = new byte[64];
blake2bunkeyed.doFinal(unkeyedHash, 0);
blake2bunkeyed.reset();
if (!Arrays.areEqual(Hex.decode(unkeyedTestVectors[i][0]),
unkeyedHash))
{
fail("BLAKE2b mismatch on test vector ",
unkeyedTestVectors[i][0],
new String(Hex.encode(unkeyedHash)));
}
}
cloneTest();
resetTest();
testNullKeyVsUnkeyed();
testLengthConstruction();
}
private void cloneTest()
{
Blake2bDigest blake2bCloneSource = new Blake2bDigest(Hex.decode(keyedTestVectors[3][1]), 16, Hex.decode("000102030405060708090a0b0c0d0e0f"), Hex.decode("101112131415161718191a1b1c1d1e1f"));
byte[] expected = Hex.decode("b6d48ed5771b17414c4e08bd8d8a3bc4");
checkClone(blake2bCloneSource, expected);
// just digest size
blake2bCloneSource = new Blake2bDigest(160);
expected = Hex.decode("64202454e538279b21cea0f5a7688be656f8f484");
checkClone(blake2bCloneSource, expected);
// null salt and personalisation
blake2bCloneSource = new Blake2bDigest(Hex.decode(keyedTestVectors[3][1]), 16, null, null);
expected = Hex.decode("2b4a081fae2d7b488f5eed7e83e42a20");
checkClone(blake2bCloneSource, expected);
// null personalisation
blake2bCloneSource = new Blake2bDigest(Hex.decode(keyedTestVectors[3][1]), 16, Hex.decode("000102030405060708090a0b0c0d0e0f"), null);
expected = Hex.decode("00c3a2a02fcb9f389857626e19d706f6");
checkClone(blake2bCloneSource, expected);
// null salt
blake2bCloneSource = new Blake2bDigest(Hex.decode(keyedTestVectors[3][1]), 16, null, Hex.decode("101112131415161718191a1b1c1d1e1f"));
expected = Hex.decode("f445ec9c062a3c724f8fdef824417abb");
checkClone(blake2bCloneSource, expected);
}
private void checkClone(Blake2bDigest blake2bCloneSource, byte[] expected)
{
byte[] message = Hex.decode(keyedTestVectors[3][0]);
blake2bCloneSource.update(message, 0, message.length);
byte[] hash = new byte[blake2bCloneSource.getDigestSize()];
Blake2bDigest digClone = new Blake2bDigest(blake2bCloneSource);
blake2bCloneSource.doFinal(hash, 0);
if (!areEqual(expected, hash))
{
fail("clone source not correct");
}
digClone.doFinal(hash, 0);
if (!areEqual(expected, hash))
{
fail("clone not correct");
}
}
private void testLengthConstruction()
{
try
{
new Blake2bDigest(-1);
fail("no exception");
}
catch (IllegalArgumentException e)
{
isEquals("BLAKE2b digest bit length must be a multiple of 8 and not greater than 512", e.getMessage());
}
try
{
new Blake2bDigest(9);
fail("no exception");
}
catch (IllegalArgumentException e)
{
isEquals("BLAKE2b digest bit length must be a multiple of 8 and not greater than 512", e.getMessage());
}
try
{
new Blake2bDigest(520);
fail("no exception");
}
catch (IllegalArgumentException e)
{
isEquals("BLAKE2b digest bit length must be a multiple of 8 and not greater than 512", e.getMessage());
}
try
{
new Blake2bDigest(null, -1, null, null);
fail("no exception");
}
catch (IllegalArgumentException e)
{
isEquals("Invalid digest length (required: 1 - 64)", e.getMessage());
}
try
{
new Blake2bDigest(null, 65, null, null);
fail("no exception");
}
catch (IllegalArgumentException e)
{
isEquals("Invalid digest length (required: 1 - 64)", e.getMessage());
}
}
private void testNullKeyVsUnkeyed()
{
byte[] abc = Strings.toByteArray("abc");
for (int i = 1; i != 64; i++)
{
Blake2bDigest dig1 = new Blake2bDigest(i * 8);
Blake2bDigest dig2 = new Blake2bDigest(null, i, null, null);
byte[] out1 = new byte[i];
byte[] out2 = new byte[i];
dig1.update(abc, 0, abc.length);
dig2.update(abc, 0, abc.length);
dig1.doFinal(out1, 0);
dig2.doFinal(out2, 0);
isTrue(Arrays.areEqual(out1, out2));
}
}
private void resetTest()
{
// Generate a non-zero key
byte[] key = new byte[32];
for (byte i = 0; i < key.length; i++)
{
key[i] = i;
}
// Generate some non-zero input longer than the key
byte[] input = new byte[key.length + 1];
for (byte i = 0; i < input.length; i++)
{
input[i] = i;
}
// Hash the input
Blake2bDigest digest = new Blake2bDigest(key);
digest.update(input, 0, input.length);
byte[] hash = new byte[digest.getDigestSize()];
digest.doFinal(hash, 0);
// Using a second instance, hash the input without calling doFinal()
Blake2bDigest digest1 = new Blake2bDigest(key);
digest1.update(input, 0, input.length);
// Reset the second instance and hash the input again
digest1.reset();
digest1.update(input, 0, input.length);
byte[] hash1 = new byte[digest.getDigestSize()];
digest1.doFinal(hash1, 0);
// The hashes should be identical
if (!Arrays.areEqual(hash, hash1))
{
fail("state was not reset");
}
}
public static void main(String[] args)
throws Exception
{
runTest(new Blake2bDigestTest());
}
}