RSAPublicKey rsapubKey = (RSAPublicKey)keyPair.getPublic();

RSAPrivateKey rsapriKey = (RSAPrivateKey)keyPair.getPrivate();

map.put(“pubKey”, rsapubKey);

map.put(“priKey”, rsapriKey);

return map;

}

/**

私密加密
@para Android开源项目《ali1024.coding.net/public/P7/Android/git》 m data
@param priKey
@return
@throws Exception

public static String encryptByPriKey(String data, RSAPrivateKey priKey){

PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(priKey.getEncoded());

KeyFactory keyFactory;

PrivateKey key;

Signature sign;

byte[] result = null;

try {

keyFactory = KeyFactory.getInstance(“RSA”);

key = keyFactory.generatePrivate(keySpec);

sign = Signature.getInstance(“MD5withRSA”);

sign.initSign(key);

sign.update(data.getBytes());// 处理的内容

result = sign.sign();

} catch (Exception e) {

e.printStackTrace();

}

System.out.println(“rsa sign:”+Hex.encodeHexString(result));

System.out.println(“sign len:”+result.length+",str hex:"+Hex.encodeHexString(result).length());

return Hex.encodeHexString(result);

}

/**

公钥验证
@param data
@param pubKey
@param res
@return
@throws Exception

public static boolean decryptByPubKey(String data, RSAPublicKey pubKey, String res) {

System.out.println(“res len:”+res.length());

X509EncodedKeySpec x509KeySpec = new X509EncodedKeySpec(pubKey.getEncoded());

KeyFactory keyFactory;

PublicKey key;

Signature sign;

boolean result = false;

try {

keyFactory = KeyFactory.getInstance(“RSA”);

key = keyFactory.generatePublic(x509KeySpec);

sign = Signature.getInstance(“MD5withRSA”);

sign.initVerify(key);

sign.update(data.getBytes());

result = sign.verify(Hex.decodeHex(res.toCharArray()));

} catch (Exception e) {

e.printStackTrace();

}

System.out.println(“rsa veri 《Android学习笔记总结+最新移动架构视频+大厂安卓面试真题+项目实战源码讲义》开源 fy:”+result);

return result;

}

package com.pro.rsa;

import java.security.interfaces.RSAPrivateKey;

import java.security.interfaces.RSAPublicKey;

import java.util.HashMap;

public class RSA {

public final static String src = “hello world hello world hello world hello world hello world hello worldhello worldhello world hello world hello world hello world hello worldhello world hello world hello world hello world v hello world hello world hello world vhello world hello world”;