diff options
| -rw-r--r-- | luni/src/test/java/libcore/javax/crypto/CipherTest.java | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/luni/src/test/java/libcore/javax/crypto/CipherTest.java b/luni/src/test/java/libcore/javax/crypto/CipherTest.java index 7cd6133..0f642cf 100644 --- a/luni/src/test/java/libcore/javax/crypto/CipherTest.java +++ b/luni/src/test/java/libcore/javax/crypto/CipherTest.java @@ -3539,6 +3539,33 @@ public final class CipherTest extends TestCase { } /* + * Check that two AAD updates are equivalent to one. + * http://b/27371173 + */ + public void test_AESGCMNoPadding_UpdateAADTwice_Success() throws Exception { + SecretKeySpec key = new SecretKeySpec(new byte[16], "AES"); + GCMParameterSpec spec = new GCMParameterSpec(128, new byte[12]); + Cipher c1 = Cipher.getInstance("AES/GCM/NoPadding"); + Cipher c2 = Cipher.getInstance("AES/GCM/NoPadding"); + + c1.init(Cipher.ENCRYPT_MODE, key, spec); + c1.updateAAD(new byte[] { + 0x01, 0x02, 0x03, 0x04, 0x05, + }); + c1.updateAAD(new byte[] { + 0x06, 0x07, 0x08, 0x09, 0x10, + }); + + c2.init(Cipher.ENCRYPT_MODE, key, spec); + c2.updateAAD(new byte[] { + 0x01, 0x02, 0x03, 0x04, 0x05, + 0x06, 0x07, 0x08, 0x09, 0x10, + }); + + assertEquals(Arrays.toString(c1.doFinal()), Arrays.toString(c2.doFinal())); + } + + /* * Check that GCM encryption with old and new instances update correctly. * http://b/26694388 */ |