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HADOOP-10693. Implementation of AES-CTR CryptoCodec using JNI to Open…
…SSL (hitliuyi via cmccabe) git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/fs-encryption@1607768 13f79535-47bb-0310-9956-ffa450edef68
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,71 +0,0 @@ | ||
| /** | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you 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 org.apache.hadoop.crypto; | ||
|
|
||
| import org.apache.hadoop.classification.InterfaceAudience; | ||
| import org.apache.hadoop.classification.InterfaceStability; | ||
|
|
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| import com.google.common.base.Preconditions; | ||
|
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| @InterfaceAudience.Private | ||
| @InterfaceStability.Evolving | ||
| public abstract class AESCTRCryptoCodec extends CryptoCodec { | ||
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| protected static final CipherSuite SUITE = CipherSuite.AES_CTR_NOPADDING; | ||
|
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| /** | ||
| * For AES, the algorithm block is fixed size of 128 bits. | ||
| * @see http://en.wikipedia.org/wiki/Advanced_Encryption_Standard | ||
| */ | ||
| private static final int AES_BLOCK_SIZE = SUITE.getAlgorithmBlockSize(); | ||
| private static final int CTR_OFFSET = 8; | ||
|
|
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| @Override | ||
| public CipherSuite getCipherSuite() { | ||
| return SUITE; | ||
| } | ||
|
|
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| /** | ||
| * The IV is produced by adding the initial IV to the counter. IV length | ||
| * should be the same as {@link #AES_BLOCK_SIZE} | ||
| */ | ||
| @Override | ||
| public void calculateIV(byte[] initIV, long counter, byte[] IV) { | ||
| Preconditions.checkArgument(initIV.length == AES_BLOCK_SIZE); | ||
| Preconditions.checkArgument(IV.length == AES_BLOCK_SIZE); | ||
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| System.arraycopy(initIV, 0, IV, 0, CTR_OFFSET); | ||
| long l = (initIV[CTR_OFFSET + 0] << 56) | ||
| + ((initIV[CTR_OFFSET + 1] & 0xFF) << 48) | ||
| + ((initIV[CTR_OFFSET + 2] & 0xFF) << 40) | ||
| + ((initIV[CTR_OFFSET + 3] & 0xFF) << 32) | ||
| + ((initIV[CTR_OFFSET + 4] & 0xFF) << 24) | ||
| + ((initIV[CTR_OFFSET + 5] & 0xFF) << 16) | ||
| + ((initIV[CTR_OFFSET + 6] & 0xFF) << 8) | ||
| + (initIV[CTR_OFFSET + 7] & 0xFF); | ||
| l += counter; | ||
| IV[CTR_OFFSET + 0] = (byte) (l >>> 56); | ||
| IV[CTR_OFFSET + 1] = (byte) (l >>> 48); | ||
| IV[CTR_OFFSET + 2] = (byte) (l >>> 40); | ||
| IV[CTR_OFFSET + 3] = (byte) (l >>> 32); | ||
| IV[CTR_OFFSET + 4] = (byte) (l >>> 24); | ||
| IV[CTR_OFFSET + 5] = (byte) (l >>> 16); | ||
| IV[CTR_OFFSET + 6] = (byte) (l >>> 8); | ||
| IV[CTR_OFFSET + 7] = (byte) (l); | ||
| } | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,159 +0,0 @@ | ||
| /** | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you 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 org.apache.hadoop.crypto; | ||
|
|
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| import java.io.IOException; | ||
| import java.nio.ByteBuffer; | ||
| import java.security.GeneralSecurityException; | ||
| import java.security.SecureRandom; | ||
|
|
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| import javax.crypto.Cipher; | ||
| import javax.crypto.spec.IvParameterSpec; | ||
| import javax.crypto.spec.SecretKeySpec; | ||
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| import org.apache.hadoop.classification.InterfaceAudience; | ||
| import org.apache.hadoop.conf.Configuration; | ||
|
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| import com.google.common.base.Preconditions; | ||
|
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| import static org.apache.hadoop.fs.CommonConfigurationKeysPublic.HADOOP_SECURITY_CRYPTO_JCE_PROVIDER_KEY; | ||
| import static org.apache.hadoop.fs.CommonConfigurationKeysPublic.HADOOP_SECURITY_SECURE_RANDOM_ALGORITHM_KEY; | ||
| import static org.apache.hadoop.fs.CommonConfigurationKeysPublic.HADOOP_SECURITY_SECURE_RANDOM_ALGORITHM_DEFAULT; | ||
|
|
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| /** | ||
| * Implement the AES-CTR crypto codec using JCE provider. | ||
| */ | ||
| @InterfaceAudience.Private | ||
| public class JCEAESCTRCryptoCodec extends AESCTRCryptoCodec { | ||
| private Configuration conf; | ||
| private String provider; | ||
| private SecureRandom random; | ||
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| public JCEAESCTRCryptoCodec() { | ||
| } | ||
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| @Override | ||
| public Configuration getConf() { | ||
| return conf; | ||
| } | ||
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| @Override | ||
| public void setConf(Configuration conf) { | ||
| this.conf = conf; | ||
| provider = conf.get(HADOOP_SECURITY_CRYPTO_JCE_PROVIDER_KEY); | ||
| final String secureRandomAlg = conf.get( | ||
| HADOOP_SECURITY_SECURE_RANDOM_ALGORITHM_KEY, | ||
| HADOOP_SECURITY_SECURE_RANDOM_ALGORITHM_DEFAULT); | ||
| try { | ||
| random = (provider != null) ? | ||
| SecureRandom.getInstance(secureRandomAlg, provider) : | ||
| SecureRandom.getInstance(secureRandomAlg); | ||
| } catch (GeneralSecurityException e) { | ||
| throw new IllegalArgumentException(e); | ||
| } | ||
| } | ||
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| @Override | ||
| public Encryptor createEncryptor() throws GeneralSecurityException { | ||
| return new JCEAESCTRCipher(Cipher.ENCRYPT_MODE, provider); | ||
| } | ||
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| @Override | ||
| public Decryptor createDecryptor() throws GeneralSecurityException { | ||
| return new JCEAESCTRCipher(Cipher.DECRYPT_MODE, provider); | ||
| } | ||
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| @Override | ||
| public void generateSecureRandom(byte[] bytes) { | ||
| random.nextBytes(bytes); | ||
| } | ||
|
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| private static class JCEAESCTRCipher implements Encryptor, Decryptor { | ||
| private final Cipher cipher; | ||
| private final int mode; | ||
| private boolean contextReset = false; | ||
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| public JCEAESCTRCipher(int mode, String provider) | ||
| throws GeneralSecurityException { | ||
| this.mode = mode; | ||
| if (provider == null || provider.isEmpty()) { | ||
| cipher = Cipher.getInstance(SUITE.getName()); | ||
| } else { | ||
| cipher = Cipher.getInstance(SUITE.getName(), provider); | ||
| } | ||
| } | ||
|
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| @Override | ||
| public void init(byte[] key, byte[] iv) throws IOException { | ||
| Preconditions.checkNotNull(key); | ||
| Preconditions.checkNotNull(iv); | ||
| contextReset = false; | ||
| try { | ||
| cipher.init(mode, new SecretKeySpec(key, "AES"), | ||
| new IvParameterSpec(iv)); | ||
| } catch (Exception e) { | ||
| throw new IOException(e); | ||
| } | ||
| } | ||
|
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| /** | ||
| * AES-CTR will consume all of the input data. It requires enough space in | ||
| * the destination buffer to encrypt entire input buffer. | ||
| */ | ||
| @Override | ||
| public void encrypt(ByteBuffer inBuffer, ByteBuffer outBuffer) | ||
| throws IOException { | ||
| process(inBuffer, outBuffer); | ||
| } | ||
|
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| /** | ||
| * AES-CTR will consume all of the input data. It requires enough space in | ||
| * the destination buffer to decrypt entire input buffer. | ||
| */ | ||
| @Override | ||
| public void decrypt(ByteBuffer inBuffer, ByteBuffer outBuffer) | ||
| throws IOException { | ||
| process(inBuffer, outBuffer); | ||
| } | ||
|
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| private void process(ByteBuffer inBuffer, ByteBuffer outBuffer) | ||
| throws IOException { | ||
| try { | ||
| int inputSize = inBuffer.remaining(); | ||
| // Cipher#update will maintain crypto context. | ||
| int n = cipher.update(inBuffer, outBuffer); | ||
| if (n < inputSize) { | ||
| /** | ||
| * Typically code will not get here. Cipher#update will consume all | ||
| * input data and put result in outBuffer. | ||
| * Cipher#doFinal will reset the crypto context. | ||
| */ | ||
| contextReset = true; | ||
| cipher.doFinal(inBuffer, outBuffer); | ||
| } | ||
| } catch (Exception e) { | ||
| throw new IOException(e); | ||
| } | ||
| } | ||
|
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| @Override | ||
| public boolean isContextReset() { | ||
| return contextReset; | ||
| } | ||
| } | ||
| } | ||
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