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@@ -0,0 +1,141 @@
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+package org.springblade.common.utils;
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+
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+import cn.hutool.core.codec.Base64;
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+import lombok.extern.slf4j.Slf4j;
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+
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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.InvalidKeySpecException;
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+import java.security.spec.PKCS8EncodedKeySpec;
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+import java.security.spec.X509EncodedKeySpec;
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+
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+
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+/**
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+ * @author: lianghanqiang
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+ * @description: 秘钥工具
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+ * @since: 8/2/21 -- 9:40 AM
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+ */
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+@Slf4j
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+public class RSASecretUtil {
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+
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+ public static final String CHARSET = "UTF-8";
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+ public static final String RSA_ALGORITHM = "RSA";
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+
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+ /**
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+ * 生成秘钥对
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+ * */
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+ private static void generateKeyPair() throws NoSuchAlgorithmException {
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+ KeyPairGenerator keyTools = KeyPairGenerator.getInstance("RSA");
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+ KeyPair keyPair = keyTools.generateKeyPair();
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+ System.out.println(Base64.encode(keyPair.getPrivate().getEncoded()));
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+ System.out.println(Base64.encode(keyPair.getPublic().getEncoded()));
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+ }
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+
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+ /**
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+ * 得到公钥
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+ * @param publicKey 密钥字符串（经过base64编码）
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+ * @throws Exception
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+ */
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+ public static RSAPublicKey getPublicKey(String publicKey) throws NoSuchAlgorithmException, InvalidKeySpecException {
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+ //通过X509编码的Key指令获得公钥对象
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+ KeyFactory keyFactory = KeyFactory.getInstance(RSA_ALGORITHM);
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+ X509EncodedKeySpec x509KeySpec = new X509EncodedKeySpec(Base64.decode(publicKey));
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+ RSAPublicKey key = (RSAPublicKey) keyFactory.generatePublic(x509KeySpec);
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+ return key;
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+ }
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+
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+ /**
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+ * 得到私钥
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+ * @param privateKey 密钥字符串（经过base64编码）
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+ * @throws Exception
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+ */
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+ public static RSAPrivateKey getPrivateKey(String privateKey) throws NoSuchAlgorithmException, InvalidKeySpecException {
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+ //通过PKCS#8编码的Key指令获得私钥对象
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+ KeyFactory keyFactory = KeyFactory.getInstance(RSA_ALGORITHM);
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+ PKCS8EncodedKeySpec pkcs8KeySpec = new PKCS8EncodedKeySpec(Base64.decode(privateKey));
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+ RSAPrivateKey key = (RSAPrivateKey) keyFactory.generatePrivate(pkcs8KeySpec);
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+ return key;
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+ }
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+
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+ /**
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+ * 公钥加密
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+ * @param data
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+ * @param publicKey
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+ * @return
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+ */
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+ public static String publicEncrypt(String data, RSAPublicKey publicKey){
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+ return encode(data, publicKey);
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+ }
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+
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+
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+
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+ /**
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+ * 私钥解密
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+ * @param data
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+ * @param privateKey
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+ * @return
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+ */
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+
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+ public static String privateDecrypt(String data, RSAPrivateKey privateKey){
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+ return decode(data,privateKey);
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+ }
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+
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+ /**
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+ * 私钥加密
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+ * @param data
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+ * @param privateKey
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+ * @return
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+ */
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+
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+ public static String privateEncrypt(String data, RSAPrivateKey privateKey){
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+ return encode(data, privateKey);
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+ }
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+
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+ /**
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+ * 公钥解密
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+ * @param data
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+ * @param publicKey
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+ * @return
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+ */
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+
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+ public static String publicDecrypt(String data, RSAPublicKey publicKey){
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+ return decode(data, publicKey);
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+ }
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+
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+
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+
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+ private static String decode(String data, Key key ) {
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+ try{
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+ Cipher cipher = Cipher.getInstance(RSA_ALGORITHM);
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+ cipher.init(Cipher.DECRYPT_MODE, key);
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+ return new String(cipher.doFinal(Base64.decode(data)),CHARSET);
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+ }catch(Exception e){
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+ throw new RuntimeException("解密字符串[" + data + "]时遇到异常", e);
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+ }
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+ }
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+
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+
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+ private static String encode(String data, Key key) {
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+ try{
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+ Cipher cipher = Cipher.getInstance(RSA_ALGORITHM);
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+ cipher.init(Cipher.ENCRYPT_MODE, key);
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+ return Base64.encode(cipher.doFinal(data.getBytes()));
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+ }catch(Exception e){
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+ throw new RuntimeException("加密字符串[" + data + "]时遇到异常", e);
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+ }
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+ }
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+
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+
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+ public static void main(String[] args) throws NoSuchAlgorithmException, InvalidKeySpecException {
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+ String PRIVATEKEY = "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";
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+ String PUBLICKEY = "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAlY/b8e3us/uZA+NxJ8Wb3yGdvfUsGMWM4wICH8Hrvzre95kcwM1W2wrG1LlhmIKqTfaLc4x83t4RjsrOtUgPIQlIYOMrs5GbvwuxeaYDfQJFDoXEtqoDsrsJVp8Z/EMssmRpyAR9SbrmtFFIuqESiu4HjphlYl7qGFBqF9ay79k0C1Ujntb39++wZj5rYxaK0vDoBlidWzuc6PFeshhldoPHY9gNUPsW1Cj1bFPtMQlUqyWy1oCce2qSpF/hPcaIfCdNU94ROv5tUkkHj3A2bIzqMvdwngizWNLZsORfd4KcJTuC/qMRlUB1rZLunR1vE1T+7fQwFvlHA8LGlWjZOQIDAQAB";
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+ RSAPrivateKey privateKey = getPrivateKey(PRIVATEKEY);
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+ RSAPublicKey publicKey = getPublicKey(PUBLICKEY);
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+ String text = "123456789";
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+ String secret = privateEncrypt(text,privateKey);
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+ System.out.println(secret);
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+ System.out.println(publicDecrypt(secret,publicKey));
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+ }
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+}
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