Examples with Aead com.google.crypto.tink.Aead used on opensource projects

Example 31 with Aead

use of com.google.crypto.tink.Aead in project tink by google.

the class AwsKmsAeadTest method testEncryptDecrypt.

@Test
public void testEncryptDecrypt() throws Exception {
    DecryptResult mockDecryptResult = mock(DecryptResult.class);
    EncryptResult mockEncryptResult = mock(EncryptResult.class);
    when(mockKms.decrypt(isA(DecryptRequest.class))).thenReturn(mockDecryptResult);
    when(mockKms.encrypt(isA(EncryptRequest.class))).thenReturn(mockEncryptResult);
    Aead aead = new AwsKmsAead(mockKms, KEY_ARN);
    byte[] aad = Random.randBytes(20);
    for (int messageSize = 0; messageSize < 75; messageSize++) {
        byte[] message = Random.randBytes(messageSize);
        when(mockDecryptResult.getKeyId()).thenReturn(KEY_ARN);
        when(mockDecryptResult.getPlaintext()).thenReturn(ByteBuffer.wrap(message));
        when(mockEncryptResult.getCiphertextBlob()).thenReturn(ByteBuffer.wrap(message));
        byte[] ciphertext = aead.encrypt(message, aad);
        byte[] decrypted = aead.decrypt(ciphertext, aad);
        assertArrayEquals(message, decrypted);
    }
}

Example 32 with Aead

use of com.google.crypto.tink.Aead in project tink by google.

the class AwsKmsAeadTest method testDecryptShouldThrowExceptionIfKeyArnIsDifferent.

@Test
public void testDecryptShouldThrowExceptionIfKeyArnIsDifferent() throws Exception {
    DecryptResult mockDecryptResult = mock(DecryptResult.class);
    EncryptResult mockEncryptResult = mock(EncryptResult.class);
    when(mockKms.decrypt(isA(DecryptRequest.class))).thenReturn(mockDecryptResult);
    when(mockKms.encrypt(isA(EncryptRequest.class))).thenReturn(mockEncryptResult);
    Aead aead = new AwsKmsAead(mockKms, KEY_ARN);
    byte[] aad = Random.randBytes(20);
    byte[] message = Random.randBytes(20);
    when(mockEncryptResult.getCiphertextBlob()).thenReturn(ByteBuffer.wrap(message));
    when(mockDecryptResult.getKeyId()).thenReturn(KEY_ARN + "1");
    byte[] ciphertext = aead.encrypt(message, aad);
    assertThrows(GeneralSecurityException.class, () -> aead.decrypt(ciphertext, aad));
}

Example 33 with Aead

use of com.google.crypto.tink.Aead in project tink by google.

the class EncryptThenAuthenticateTest method testEncryptDecrypt.

@Test
public void testEncryptDecrypt() throws Exception {
    Aead aead = getAead(Random.randBytes(16), Random.randBytes(16), 16, 16, "HMACSHA256");
    byte[] plaintext = Random.randBytes(1001);
    byte[] aad = Random.randBytes(13);
    byte[] ciphertext = aead.encrypt(plaintext, aad);
    try {
        byte[] plaintext1 = aead.decrypt(ciphertext, aad);
        assertArrayEquals(plaintext, plaintext1);
    } catch (GeneralSecurityException e) {
        fail("Valid ciphertext and aad, should have passed: " + e);
    }
}

Example 34 with Aead

use of com.google.crypto.tink.Aead in project tink by google.

the class XChaCha20Poly1305Test method testLongMessages.

@Test
public void testLongMessages() throws Exception {
    if (TestUtil.isAndroid() || TestUtil.isTsan()) {
        System.out.println("testLongMessages doesn't work on Android and under tsan, skipping");
        return;
    }
    int dataSize = 16;
    while (dataSize <= (1 << 24)) {
        byte[] plaintext = Random.randBytes(dataSize);
        byte[] aad = Random.randBytes(dataSize / 3);
        byte[] key = Random.randBytes(KEY_SIZE);
        Aead aead = createInstance(key);
        byte[] ciphertext = aead.encrypt(plaintext, aad);
        byte[] decrypted = aead.decrypt(ciphertext, aad);
        assertArrayEquals(plaintext, decrypted);
        dataSize += 5 * dataSize / 11;
    }
}

Example 35 with Aead

use of com.google.crypto.tink.Aead in project tink by google.

the class ChaCha20Poly1305Test method testEncryptDecrypt.

@Test
public void testEncryptDecrypt() throws Exception {
    Assume.assumeFalse(TinkFips.useOnlyFips());
    Aead aead = createInstance(Random.randBytes(KEY_SIZE));
    for (int i = 0; i < 100; i++) {
        byte[] message = Random.randBytes(i);
        byte[] aad = Random.randBytes(i);
        byte[] ciphertext = aead.encrypt(message, aad);
        byte[] decrypted = aead.decrypt(ciphertext, aad);
        assertArrayEquals(message, decrypted);
    }
}