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

Example 76 with Aead

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

the class ChaCha20Poly1305KeyManagerTest method testCiphertextSize.

@Test
public void testCiphertextSize() throws Exception {
    Aead aead = new ChaCha20Poly1305KeyManager().getPrimitive(createChaCha20Poly1305Key(32), Aead.class);
    byte[] plaintext = "plaintext".getBytes(UTF_8);
    byte[] associatedData = "associatedData".getBytes(UTF_8);
    byte[] ciphertext = aead.encrypt(plaintext, associatedData);
    assertEquals(12 + /* IV_SIZE */
    plaintext.length + 16, /* TAG_SIZE */
    ciphertext.length);
}

Example 77 with Aead

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

the class AesGcmSivKeyManagerTest method getPrimitive.

@Test
public void getPrimitive() throws Exception {
    AesGcmSivKey key = factory.createKey(AesGcmSivKeyFormat.newBuilder().setKeySize(16).build());
    Aead managerAead = manager.getPrimitive(key, Aead.class);
    Aead directAead = new AesGcmSiv(key.getKeyValue().toByteArray());
    byte[] plaintext = Random.randBytes(20);
    byte[] associatedData = Random.randBytes(20);
    assertThat(directAead.decrypt(managerAead.encrypt(plaintext, associatedData), associatedData)).isEqualTo(plaintext);
}

Example 78 with Aead

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

the class KmsEnvelopeAeadKeyManagerTest method createKey_multipleKeysWithSameKek.

@Test
public void createKey_multipleKeysWithSameKek() throws Exception {
    String kekUri = FakeKmsClient.createFakeKeyUri();
    KeyTemplate dekTemplate = AesCtrHmacAeadKeyManager.aes128CtrHmacSha256Template();
    KmsEnvelopeAeadKey key1 = factory.createKey(KmsEnvelopeAeadKeyManager.createKeyFormat(kekUri, dekTemplate));
    Aead aead1 = manager.getPrimitive(key1, Aead.class);
    KmsEnvelopeAeadKey key2 = factory.createKey(KmsEnvelopeAeadKeyManager.createKeyFormat(kekUri, dekTemplate));
    Aead aead2 = manager.getPrimitive(key2, Aead.class);
    byte[] plaintext = Random.randBytes(20);
    byte[] associatedData = Random.randBytes(20);
    assertThat(aead1.decrypt(aead2.encrypt(plaintext, associatedData), associatedData)).isEqualTo(plaintext);
}

Example 79 with Aead

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

the class KmsEnvelopeAeadKeyManagerTest method getPrimitive.

@Test
public void getPrimitive() throws Exception {
    String kekUri = FakeKmsClient.createFakeKeyUri();
    KeyTemplate dekTemplate = AesCtrHmacAeadKeyManager.aes128CtrHmacSha256Template();
    KmsEnvelopeAeadKey key = factory.createKey(KmsEnvelopeAeadKeyManager.createKeyFormat(kekUri, dekTemplate));
    Aead aead = manager.getPrimitive(key, Aead.class);
    TestUtil.runBasicAeadTests(aead);
}

Example 80 with Aead

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

the class KmsEnvelopeAeadTest method encryptDecryptMissingAd_fails.

@Test
public void encryptDecryptMissingAd_fails() throws GeneralSecurityException {
    Aead remoteAead = this.generateNewRemoteAead();
    KmsEnvelopeAead envAead = new KmsEnvelopeAead(KeyTemplateProtoConverter.toProto(KeyTemplates.get("AES128_EAX")), remoteAead);
    byte[] plaintext = "helloworld".getBytes(UTF_8);
    byte[] associatedData = "envelope_ad".getBytes(UTF_8);
    byte[] ciphertext = envAead.encrypt(plaintext, associatedData);
    assertThrows(GeneralSecurityException.class, () -> envAead.decrypt(ciphertext, EMPTY_ADD));
}