1 files changed, 0 insertions, 93 deletions
diff --git a/src/java/com/android/internal/net/ipsec/ike/crypto/IkeMac.java b/src/java/com/android/internal/net/ipsec/ike/crypto/IkeMac.java
deleted file mode 100644
index ee45cc9e..00000000
--- a/src/java/com/android/internal/net/ipsec/ike/crypto/IkeMac.java
+++ /dev/null
@@ -1,93 +0,0 @@
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.internal.net.ipsec.ike.crypto;
-
-import com.android.internal.net.crypto.KeyGenerationUtils.ByteSigner;
-
-import java.nio.ByteBuffer;
-import java.security.InvalidKeyException;
-import java.security.NoSuchAlgorithmException;
-import java.security.Provider;
-
-import javax.crypto.Cipher;
-import javax.crypto.Mac;
-import javax.crypto.NoSuchPaddingException;
-import javax.crypto.spec.SecretKeySpec;
-
-/**
- * IkeMac is an abstract class that represents common information for all negotiated algorithms that
- * generates Message Authentication Code (MAC), e.g. PRF and integrity algorithm.
- */
-abstract class IkeMac extends IkeCrypto implements ByteSigner {
-    // STOPSHIP: b/130190639 Catch unchecked exceptions, notify users and close the IKE session.
-    private final boolean mIsEncryptAlgo;
-    private final Mac mMac;
-    private final Cipher mCipher;
-
-    protected IkeMac(
-            int algorithmId,
-            int keyLength,
-            String algorithmName,
-            boolean isEncryptAlgo,
-            Provider provider) {
-        super(algorithmId, keyLength, algorithmName);
-
-        mIsEncryptAlgo = isEncryptAlgo;
-
-        try {
-            if (mIsEncryptAlgo) {
-                mMac = null;
-                mCipher = Cipher.getInstance(getAlgorithmName(), provider);
-            } else {
-                mMac = Mac.getInstance(getAlgorithmName(), provider);
-                mCipher = null;
-            }
-        } catch (NoSuchAlgorithmException | NoSuchPaddingException e) {
-            throw new IllegalArgumentException("Failed to construct " + getTypeString(), e);
-        }
-    }
-
-    /**
-     * Signs the bytes to generate a Message Authentication Code (MAC).
-     *
-     * <p>Caller is responsible for providing valid key according to their use cases (e.g. PSK,
-     * SK_p, SK_d ...).
-     *
-     * @param keyBytes the key to sign data.
-     * @param dataToSign the data to be signed.
-     * @return the calculated MAC.
-     */
-    @Override
-    public byte[] signBytes(byte[] keyBytes, byte[] dataToSign) {
-        try {
-            SecretKeySpec secretKey = new SecretKeySpec(keyBytes, getAlgorithmName());
-
-            if (mIsEncryptAlgo) {
-                throw new UnsupportedOperationException(
-                        "Do not support " + getTypeString() + " using encryption algorithm.");
-            } else {
-                ByteBuffer inputBuffer = ByteBuffer.wrap(dataToSign);
-                mMac.init(secretKey);
-                mMac.update(inputBuffer);
-
-                return mMac.doFinal();
-            }
-        } catch (InvalidKeyException | IllegalStateException e) {
-            throw new IllegalArgumentException("Failed to generate MAC: ", e);
-        }
-    }
-}