copy(out[len(plaintext):], tag[:]) } func openKMA(out []byte, g *GCM, nonce, ciphertext, data []byte) error { tag := ciphertext[len(ciphertext)-g.tagSize:] ciphertext = ciphertext[:len(ciphertext)-g.tagSize] var counter [gcmBlockSize]byte deriveCounter(&g.hashKey, &counter, nonce) fc := aes.BlockFunction(&g.cipher) | kmaLAAD | kmaLPC | kmaDecrypt var expectedTag [gcmTagSize]byte kmaGCM(fc, aes.BlockKey(&g.cipher), out[:len(ciphertext)], ciphertext, data, &expectedTag, &counter) if subtle.ConstantTimeCompare(e...

copy(out[len(plaintext):], tag[:]) } func openKMA(out []byte, g *GCM, nonce, ciphertext, data []byte) error { tag := ciphertext[len(ciphertext)-g.tagSize:] ciphertext = ciphertext[:len(ciphertext)-g.tagSize] var counter [gcmBlockSize]byte deriveCounter(&g.hashKey, &counter, nonce) fc := aes.BlockFunction(&g.cipher) | kmaLAAD | kmaLPC | kmaDecrypt var expectedTag [gcmTagSize]byte kmaGCM(fc, aes.BlockKey(&g.cipher), out[:len(ciphertext)], ciphertext, data, &expectedTag, &counter) if subtle.ConstantTimeCompare(e...

		return
	}

	// 2. Verify that we can indeed decrypt the (encrypted) key
	decryptedKey, err := GlobalKMS.Decrypt(ctx, &kms.DecryptRequest{
		Name:           key.KeyID,
		Ciphertext:     key.Ciphertext,
		AssociatedData: kmsContext,
	})
	if err != nil {
		response.DecryptionErr = err.Error()
		resp, err := json.Marshal(response)
		if err != nil {

        byte[] encrypted2 = storage.encryptCredentials(plaintext.clone());

        // Should produce different ciphertexts due to random IV
        assertFalse(Arrays.equals(encrypted1, encrypted2), "Different encryptions should produce different ciphertexts");

        // But both should decrypt to same plaintext
        char[] decrypted1 = storage.decryptCredentials(encrypted1);