CipherTest: add test for multiple updateAAD calls
Make sure that multiple updateAAD calls are equivalent to other calls to
updateAAD with the same data.
(cherry picked from commit 67ee3c5c2dad218e497035de5100e9036d140fdd)
Bug: 27371173
Change-Id: Ie69df0906438ad26c566daed3f55b07ba60fe468
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 @@
}
/*
+ * 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
*/
