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fix code
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Looly
parent
3bb4cb3012
commit
19a5876078
@ -21,8 +21,11 @@ import java.util.Arrays;
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/**
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* 密码接口，提供统一的API，用于兼容和统一JCE和BouncyCastle等库的操作<br>
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* <ul>
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* <li>process和doFinal组合使用，用于分块加密或解密</li>
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* <li>processFinal默认处理并输出小于块的数据，或一次性数据</li>
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* <li>process和doFinal组合使用，用于分块加密或解密。
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* 例如处理块的大小为8，实际需要加密的报文长度为23，那么需要分三块进行加密，前面2块长度为8的报文需要调用process进行部分加密，
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* 部分加密的结果可以从process的返回值获取到，
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* 最后的7长度(其实一般会填充到长度为块长度8)的报文则调用doFinal进行加密，结束整个部分加密的操作。</li>
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* <li>processFinal默认处理并输出小于块的数据，或一次性数据。</li>
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* </ul>
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*
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* @author Looly
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@ -0,0 +1,107 @@
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/*
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* Copyright (c) 2024 Hutool Team.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.dromara.hutool.crypto.asymmetric.paillier;
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import org.dromara.hutool.core.lang.Assert;
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import org.dromara.hutool.crypto.Cipher;
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import org.dromara.hutool.crypto.CipherMode;
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import org.dromara.hutool.crypto.CryptoException;
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import java.security.InvalidKeyException;
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import java.security.Key;
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import java.security.SecureRandom;
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/**
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* Paillier加密算法实现
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*
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* @author Looly
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* @since 6.0.0
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*/
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public class PaillierCipher implements Cipher {
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private final PaillierCipherSpiImpl impl;
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/**
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* 构造
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*/
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public PaillierCipher() {
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this.impl = new PaillierCipherSpiImpl();
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}
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@Override
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public String getAlgorithmName() {
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return PaillierKey.ALGORITHM_NAME;
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}
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@Override
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public int getBlockSize() {
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return impl.engineGetBlockSize();
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}
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@Override
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public void init(final CipherMode mode, final Parameters parameters) {
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Assert.isInstanceOf(PaillierParameters.class, parameters, "Only support JceParameters!");
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final PaillierParameters paillierParameters = (PaillierParameters) parameters;
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try {
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impl.engineInit(mode.getValue(), paillierParameters.key, paillierParameters.random);
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} catch (final InvalidKeyException e) {
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throw new CryptoException(e);
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}
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}
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@Override
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public int getOutputSize(final int len) {
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return impl.engineGetOutputSize(len);
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}
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@Override
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public int process(final byte[] in, final int inOff, final int len, final byte[] out, final int outOff) {
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return impl.engineUpdate(in, inOff, len, out, outOff);
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}
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@Override
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public int doFinal(final byte[] out, final int outOff) {
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return impl.engineDoFinal(null, 0, 0, out, outOff);
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}
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@Override
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public byte[] processFinal(final byte[] in, final int inOffset, final int inputLen) {
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return impl.engineDoFinal(in, inOffset, inputLen);
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}
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/**
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* Paillier算法的key和random封装
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*/
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public static class PaillierParameters implements Parameters {
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private final Key key;
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/**
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* 随机数生成器，可自定义随机数种子
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*/
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private final SecureRandom random;
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/**
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* 构造
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*
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* @param key 密钥
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* @param random 自定义随机数生成器
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*/
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public PaillierParameters(final Key key, final SecureRandom random) {
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this.key = key;
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this.random = random;
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}
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}
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}
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@ -16,12 +16,15 @@
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package org.dromara.hutool.crypto.asymmetric.paillier;
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import org.dromara.hutool.crypto.CipherMode;
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import org.dromara.hutool.crypto.CryptoException;
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import org.dromara.hutool.crypto.asymmetric.AbstractAsymmetricCrypto;
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import org.dromara.hutool.crypto.asymmetric.KeyType;
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import javax.crypto.Cipher;
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import java.security.*;
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import java.security.Key;
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import java.security.KeyPair;
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import java.security.SecureRandom;
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/**
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* 同态加密算法Paillier<br>
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@ -45,7 +48,11 @@ import java.security.*;
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public class PaillierCrypto extends AbstractAsymmetricCrypto<PaillierCrypto> {
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private static final long serialVersionUID = 1L;
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private final PaillierCipherSpiImpl spi;
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private final PaillierCipher cipher;
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/**
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* 自定义随机数
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*/
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private SecureRandom random;
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/**
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* 构造，使用随机密钥对
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@ -64,7 +71,19 @@ public class PaillierCrypto extends AbstractAsymmetricCrypto<PaillierCrypto> {
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*/
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public PaillierCrypto(final KeyPair keyPair) {
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super(PaillierKey.ALGORITHM_NAME, keyPair);
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this.spi = new PaillierCipherSpiImpl();
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this.cipher = new PaillierCipher();
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}
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/**
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* 设置随机数生成器，可自定义随机数种子
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*
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* @param random 随机数生成器，可自定义随机数种子
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* @return this
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* @since 5.7.17
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*/
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public PaillierCrypto setRandom(final SecureRandom random) {
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this.random = random;
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return this;
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}
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@Override
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@ -72,7 +91,7 @@ public class PaillierCrypto extends AbstractAsymmetricCrypto<PaillierCrypto> {
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final Key key = getKeyByType(keyType);
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lock.lock();
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try {
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initMode(Cipher.ENCRYPT_MODE, key);
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initMode(CipherMode.ENCRYPT, key);
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return doFinal(data, 0, data.length);
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} catch (final Exception e) {
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throw new CryptoException(e);
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@ -86,7 +105,7 @@ public class PaillierCrypto extends AbstractAsymmetricCrypto<PaillierCrypto> {
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final Key key = getKeyByType(keyType);
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lock.lock();
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try {
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initMode(Cipher.DECRYPT_MODE, key);
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initMode(CipherMode.DECRYPT, key);
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return doFinal(bytes, 0, bytes.length);
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} catch (final Exception e) {
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throw new CryptoException(e);
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@ -105,10 +124,9 @@ public class PaillierCrypto extends AbstractAsymmetricCrypto<PaillierCrypto> {
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* @param mode 模式，可选{@link Cipher#ENCRYPT_MODE}或{@link Cipher#DECRYPT_MODE}
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* @param key 公钥或私钥
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* @return this
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* @throws InvalidKeyException 密钥错误
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*/
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public PaillierCrypto initMode(final int mode, final Key key) throws InvalidKeyException {
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this.spi.engineInit(mode, key, null);
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public PaillierCrypto initMode(final CipherMode mode, final Key key) {
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this.cipher.init(mode, new PaillierCipher.PaillierParameters(key, this.random));
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return this;
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}
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@ -121,6 +139,6 @@ public class PaillierCrypto extends AbstractAsymmetricCrypto<PaillierCrypto> {
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* @return 执行后的数据
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*/
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public byte[] doFinal(final byte[] input, final int inputOffset, final int inputLen) {
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return this.spi.engineDoFinal(input, inputOffset, inputLen);
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return this.cipher.processFinal(input, inputOffset, inputLen);
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}
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}
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