Examples with Key com.google.crypto.tink.proto.Keyset.Key used on opensource projects

Example 41 with Key

use of com.google.crypto.tink.proto.Keyset.Key in project tink by google.

the class DeterministicAeadFactoryTest method testSmallPlaintextWithRawKey.

private static void testSmallPlaintextWithRawKey(int keySize) throws Exception {
    Key primary = TestUtil.createKey(TestUtil.createAesSivKeyData(keySize), 42, KeyStatusType.ENABLED, OutputPrefixType.RAW);
    KeysetHandle keysetHandle = TestUtil.createKeysetHandle(TestUtil.createKeyset(primary));
    DeterministicAead daead = DeterministicAeadFactory.getPrimitive(keysetHandle);
    byte[] plaintext = Random.randBytes(1);
    byte[] associatedData = Random.randBytes(20);
    byte[] ciphertext = daead.encryptDeterministically(plaintext, associatedData);
    assertArrayEquals(plaintext, daead.decryptDeterministically(ciphertext, associatedData));
    assertEquals(CryptoFormat.RAW_PREFIX_SIZE + plaintext.length + 16, ciphertext.length);
}

Example 42 with Key

use of com.google.crypto.tink.proto.Keyset.Key in project tink by google.

the class DeterministicAeadFactoryTest method testMultipleKeys.

private static void testMultipleKeys(int keySize) throws Exception {
    Key primary = TestUtil.createKey(TestUtil.createAesSivKeyData(keySize), 42, KeyStatusType.ENABLED, OutputPrefixType.TINK);
    Key raw = TestUtil.createKey(TestUtil.createAesSivKeyData(keySize), 43, KeyStatusType.ENABLED, OutputPrefixType.RAW);
    Key legacy = TestUtil.createKey(TestUtil.createAesSivKeyData(keySize), 44, KeyStatusType.ENABLED, OutputPrefixType.LEGACY);
    Key tink = TestUtil.createKey(TestUtil.createAesSivKeyData(keySize), 45, KeyStatusType.ENABLED, OutputPrefixType.TINK);
    KeysetHandle keysetHandle = TestUtil.createKeysetHandle(TestUtil.createKeyset(primary, raw, legacy, tink));
    DeterministicAead daead = DeterministicAeadFactory.getPrimitive(keysetHandle);
    byte[] plaintext = Random.randBytes(20);
    byte[] associatedData = Random.randBytes(20);
    byte[] ciphertext = daead.encryptDeterministically(plaintext, associatedData);
    byte[] prefix = Arrays.copyOfRange(ciphertext, 0, CryptoFormat.NON_RAW_PREFIX_SIZE);
    assertArrayEquals(prefix, CryptoFormat.getOutputPrefix(primary));
    assertArrayEquals(plaintext, daead.decryptDeterministically(ciphertext, associatedData));
    assertEquals(CryptoFormat.NON_RAW_PREFIX_SIZE + plaintext.length + 16, ciphertext.length);
    // encrypt with a non-primary RAW key and decrypt with the keyset
    KeysetHandle keysetHandle2 = TestUtil.createKeysetHandle(TestUtil.createKeyset(raw, legacy, tink));
    DeterministicAead daead2 = DeterministicAeadFactory.getPrimitive(keysetHandle2);
    ciphertext = daead2.encryptDeterministically(plaintext, associatedData);
    assertArrayEquals(plaintext, daead.decryptDeterministically(ciphertext, associatedData));
    // encrypt with a random key not in the keyset, decrypt with the keyset should fail
    Key random = TestUtil.createKey(TestUtil.createAesSivKeyData(keySize), 44, KeyStatusType.ENABLED, OutputPrefixType.TINK);
    keysetHandle2 = TestUtil.createKeysetHandle(TestUtil.createKeyset(random));
    daead2 = DeterministicAeadFactory.getPrimitive(keysetHandle2);
    ciphertext = daead2.encryptDeterministically(plaintext, associatedData);
    try {
        daead.decryptDeterministically(ciphertext, associatedData);
        fail("Expected GeneralSecurityException");
    } catch (GeneralSecurityException e) {
        assertExceptionContains(e, "decryption failed");
    }
}

Example 43 with Key

use of com.google.crypto.tink.proto.Keyset.Key in project tink by google.

the class DeterministicAeadFactoryTest method testRawKeyAsPrimary.

private static void testRawKeyAsPrimary(int keySize) throws Exception {
    Key primary = TestUtil.createKey(TestUtil.createAesSivKeyData(keySize), 42, KeyStatusType.ENABLED, OutputPrefixType.RAW);
    Key raw = TestUtil.createKey(TestUtil.createAesSivKeyData(keySize), 43, KeyStatusType.ENABLED, OutputPrefixType.RAW);
    Key legacy = TestUtil.createKey(TestUtil.createAesSivKeyData(keySize), 44, KeyStatusType.ENABLED, OutputPrefixType.LEGACY);
    KeysetHandle keysetHandle = TestUtil.createKeysetHandle(TestUtil.createKeyset(primary, raw, legacy));
    DeterministicAead daead = DeterministicAeadFactory.getPrimitive(keysetHandle);
    byte[] plaintext = Random.randBytes(20);
    byte[] associatedData = Random.randBytes(20);
    byte[] ciphertext = daead.encryptDeterministically(plaintext, associatedData);
    assertArrayEquals(plaintext, daead.decryptDeterministically(ciphertext, associatedData));
    assertEquals(CryptoFormat.RAW_PREFIX_SIZE + plaintext.length + 16, ciphertext.length);
}

Example 44 with Key

use of com.google.crypto.tink.proto.Keyset.Key in project tink by google.

the class DeterministicAeadIntegrationTest method testRawKeyAsPrimary.

private static void testRawKeyAsPrimary(int keySize) throws Exception {
    Key primary = TestUtil.createKey(TestUtil.createAesSivKeyData(keySize), 42, KeyStatusType.ENABLED, OutputPrefixType.RAW);
    Key raw = TestUtil.createKey(TestUtil.createAesSivKeyData(keySize), 43, KeyStatusType.ENABLED, OutputPrefixType.RAW);
    Key legacy = TestUtil.createKey(TestUtil.createAesSivKeyData(keySize), 44, KeyStatusType.ENABLED, OutputPrefixType.LEGACY);
    KeysetHandle keysetHandle = TestUtil.createKeysetHandle(TestUtil.createKeyset(primary, raw, legacy));
    DeterministicAead daead = keysetHandle.getPrimitive(DeterministicAead.class);
    byte[] plaintext = Random.randBytes(20);
    byte[] associatedData = Random.randBytes(20);
    byte[] ciphertext = daead.encryptDeterministically(plaintext, associatedData);
    assertArrayEquals(plaintext, daead.decryptDeterministically(ciphertext, associatedData));
    assertEquals(CryptoFormat.RAW_PREFIX_SIZE + plaintext.length + 16, ciphertext.length);
}

Example 45 with Key

use of com.google.crypto.tink.proto.Keyset.Key in project tink by google.

the class MacFactoryTest method testSmallPlaintextWithRawKey.

@Test
public void testSmallPlaintextWithRawKey() throws Exception {
    byte[] keyValue = Random.randBytes(HMAC_KEY_SIZE);
    Key primary = TestUtil.createKey(TestUtil.createHmacKeyData(keyValue, 16), 42, KeyStatusType.ENABLED, OutputPrefixType.RAW);
    KeysetHandle keysetHandle = TestUtil.createKeysetHandle(TestUtil.createKeyset(primary));
    Mac mac = MacFactory.getPrimitive(keysetHandle);
    byte[] plaintext = "blah".getBytes("UTF-8");
    byte[] tag = mac.computeMac(plaintext);
    // no prefix
    assertEquals(16, /* TAG */
    tag.length);
    try {
        mac.verifyMac(tag, plaintext);
    } catch (GeneralSecurityException e) {
        fail("Valid MAC, should not throw exception");
    }
}