static {
HASH_FUNCTIONS.put("md5", Hashing.md5());
HASH_FUNCTIONS.put("sha1", Hashing.sha1());
HASH_FUNCTIONS.put("sha256", Hashing.sha256());
HASH_FUNCTIONS.put("sha512", Hashing.sha512());
HASH_FUNCTIONS.put("murmur3_32", Hashing.murmur3_32());
HASH_FUNCTIONS.put("murmur3_128", Hashing.murmur3_128());
}
public void testToString() {
assertEquals("Hashing.md5()", Hashing.md5().toString());
assertEquals("Hashing.sha1()", Hashing.sha1().toString());
assertEquals("Hashing.sha256()", Hashing.sha256().toString());
assertEquals("Hashing.sha512()", Hashing.sha512().toString());
}
/**
* Tests for the MessageDigestHashFunction.
*
* @author Kurt Alfred Kluever
*/
public class MessageDigestHashFunctionTest extends TestCase {
private static final ImmutableSet<String> INPUTS = ImmutableSet.of("", "Z", "foobar");
// From "How Provider Implementations Are Requested and Supplied" from
// http://docs.oracle.com/javase/6/docs/technotes/guides/security/crypto/CryptoSpec.html
// - Some providers may choose to also include alias names.
// - For example, the "SHA-1" algorithm might be referred to as "SHA1".
// - The algorithm name is not case-sensitive.
private static final ImmutableMap<String, HashFunction> ALGORITHMS =
new ImmutableMap.Builder<String, HashFunction>()
.put("MD5", Hashing.md5())
.put("SHA", Hashing.sha1()) // Not the official name, but still works
.put("SHA1", Hashing.sha1()) // Not the official name, but still works
.put("sHa-1", Hashing.sha1()) // Not the official name, but still works
.put("SHA-1", Hashing.sha1())
.put("SHA-256", Hashing.sha256())
.put("SHA-512", Hashing.sha512())
.build();
public void testHashing() {
for (String stringToTest : INPUTS) {
for (String algorithmToTest : ALGORITHMS.keySet()) {
assertMessageDigestHashing(HashTestUtils.ascii(stringToTest), algorithmToTest);
}
}
}
public void testPutAfterHash() {
Hasher sha1 = Hashing.sha1().newHasher();
assertEquals(
"2fd4e1c67a2d28fced849ee1bb76e7391b93eb12",
sha1.putString("The quick brown fox jumps over the lazy dog", Charsets.UTF_8)
.hash()
.toString());
try {
sha1.putInt(42);
fail();
} catch (IllegalStateException expected) {
}
}
public void testHashTwice() {
Hasher sha1 = Hashing.sha1().newHasher();
assertEquals(
"2fd4e1c67a2d28fced849ee1bb76e7391b93eb12",
sha1.putString("The quick brown fox jumps over the lazy dog", Charsets.UTF_8)
.hash()
.toString());
try {
sha1.hash();
fail();
} catch (IllegalStateException expected) {
}
}
public void testToString() {
assertEquals("Hashing.md5()", Hashing.md5().toString());
assertEquals("Hashing.sha1()", Hashing.sha1().toString());
assertEquals("Hashing.sha256()", Hashing.sha256().toString());
assertEquals("Hashing.sha512()", Hashing.sha512().toString());
}
private static void assertMessageDigestHashing(byte[] input, String algorithmName) {
try {
MessageDigest digest = MessageDigest.getInstance(algorithmName);
assertEquals(
HashCode.fromBytes(digest.digest(input)), ALGORITHMS.get(algorithmName).hashBytes(input));
for (int bytes = 4; bytes <= digest.getDigestLength(); bytes++) {
assertEquals(
HashCode.fromBytes(Arrays.copyOf(digest.digest(input), bytes)),
new MessageDigestHashFunction(algorithmName, bytes, algorithmName).hashBytes(input));
}
try {
int maxSize = digest.getDigestLength();
new MessageDigestHashFunction(algorithmName, maxSize + 1, algorithmName);
fail();
} catch (IllegalArgumentException expected) {
}
} catch (NoSuchAlgorithmException nsae) {
throw new AssertionError(nsae);
}
}
}
public void testSha512() {
HashTestUtils.checkAvalanche(Hashing.sha512(), 100, 0.4);
HashTestUtils.checkNo2BitCharacteristics(Hashing.sha512());
HashTestUtils.checkNoFunnels(Hashing.sha512());
HashTestUtils.assertInvariants(Hashing.sha512());
}
