package com.doumee.config.interfaceencryption.tool;
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import com.doumee.core.constants.ResponseStatus;
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import com.doumee.core.exception.BusinessException;
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import lombok.extern.slf4j.Slf4j;
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import org.apache.commons.codec.binary.Base64;
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import javax.crypto.Cipher;
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import java.security.*;
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import java.security.interfaces.RSAPrivateKey;
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import java.security.interfaces.RSAPublicKey;
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import java.security.spec.PKCS8EncodedKeySpec;
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import java.security.spec.X509EncodedKeySpec;
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import java.util.HashMap;
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import java.util.Map;
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@Slf4j
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public class RSAEncrypt {
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private static Map<Integer, String> keyMap = new HashMap<Integer, String>(); //用于封装随机产生的公钥与私钥
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public static String privateKey = "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";
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public static String publicKey = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCZDoLPxa4aV7N0M3YYkPXhXSuxxAjzT2nYXnCQOUlNpBMfhZUZ2wO2ff06oPUWFeM7rsad3GKfX2vAMsEc1SB2CwqJLd/W1GCLBFSUHYeCka9brJf8fFr9uBo3J7g5bC58AIErKjXFTP+F4bWnqsq5jTBG0+2KsSYwRiTWpsEn1wIDAQAB";
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// public static void main(String[] args) throws Exception {
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// String phone = "18256057064";
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// String encrypt = encrypt(phone, publicKey);
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// System.out.println("加密后"+encrypt);
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// System.out.println("解密后"+decrypt(encrypt, privateKey));
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// }
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/**
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* 随机生成密钥对
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*
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* @throws NoSuchAlgorithmException
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*/
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public static void genKeyPair() throws NoSuchAlgorithmException {
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// KeyPairGenerator类用于生成公钥和私钥对，基于RSA算法生成对象
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KeyPairGenerator keyPairGen = KeyPairGenerator.getInstance("RSA");
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// 初始化密钥对生成器，密钥大小为96-1024位
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keyPairGen.initialize(1024, new SecureRandom());
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// 生成一个密钥对，保存在keyPair中
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KeyPair keyPair = keyPairGen.generateKeyPair();
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RSAPrivateKey privateKey = (RSAPrivateKey) keyPair.getPrivate(); // 得到私钥
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RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic(); // 得到公钥
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String publicKeyString = new String(Base64.encodeBase64(publicKey.getEncoded()));
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// 得到私钥字符串
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String privateKeyString = new String(Base64.encodeBase64((privateKey.getEncoded())));
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// 将公钥和私钥保存到Map
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keyMap.put(0, publicKeyString); //0表示公钥
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keyMap.put(1, privateKeyString); //1表示私钥
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System.out.println("公钥:" + publicKeyString);
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System.out.println("私钥:" + privateKeyString);
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}
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/**
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* RSA公钥加密
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*
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* @param str 加密字符串
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* @param publicKey 公钥
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* @return 密文
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* @throws Exception 加密过程中的异常信息
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*/
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public static String encrypt(String str, String publicKey) throws Exception {
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//base64编码的公钥
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byte[] decoded = Base64.decodeBase64(publicKey);
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RSAPublicKey pubKey = (RSAPublicKey) KeyFactory.getInstance("RSA").generatePublic(new X509EncodedKeySpec(decoded));
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//RSA加密
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Cipher cipher = Cipher.getInstance("RSA");
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cipher.init(Cipher.ENCRYPT_MODE, pubKey);
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String outStr = Base64.encodeBase64String(cipher.doFinal(str.getBytes("UTF-8")));
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return outStr;
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}
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/**
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* RSA私钥解密
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*
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* @param str 加密字符串
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* @param privateKey 私钥
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* @return 铭文
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* @throws Exception 解密过程中的异常信息
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*/
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public static String decrypt(String str, String privateKey) throws Exception {
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try {
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log.info("RSA私钥解密 str = " + str);
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log.info("RSA私钥解密 privateKey = " + privateKey);
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//64位解码加密后的字符串
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byte[] inputByte = Base64.decodeBase64(str.getBytes("UTF-8"));
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//base64编码的私钥
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byte[] decoded = Base64.decodeBase64(privateKey);
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RSAPrivateKey priKey = (RSAPrivateKey) KeyFactory.getInstance("RSA").generatePrivate(new PKCS8EncodedKeySpec(decoded));
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//RSA解密
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Cipher cipher = Cipher.getInstance("RSA");
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cipher.init(Cipher.DECRYPT_MODE, priKey);
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String outStr = new String(cipher.doFinal(inputByte));
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return outStr;
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}catch (Exception e){
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return "{}";
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}
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}
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}
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