jmeter接口测试之使用rsa算法加密解密的代码

import org.apache.commons.codec.binary.Base64;

import java.io.ByteArrayOutputStream;

import java.security.Key;

import java.security.KeyFactory;

import java.security.KeyPair;

import java.security.KeyPairGenerator;

import java.security.PrivateKey;

import java.security.PublicKey;

import java.security.Signature;

import java.security.interfaces.RSAPrivateKey;

import java.security.interfaces.RSAPublicKey;

import java.security.spec.PKCS8EncodedKeySpec;

import java.security.spec.X509EncodedKeySpec;

import java.util.HashMap;

import java.util.Map;

import javax.crypto.Cipher;

String RSA_PUB_KEY= "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDNPFO1OaKJbLOH7hVzjj8s+k+spSgG7D2imIpR1ukC3xqgEUYP/vYIiZHXnK04Ddk0ELYee5xDbFfTHSWOK6d2lqK0ydWtLFHCdKpBehM/YKa72zf5KaSJGGgag8EQw4o5ZBS/Ia9w2OxYZ1S94OeRXaA+Z4cy8rBui0hTW9Z0pwIDAQAB" ;

String KEY_ALGORITHM = "RSA" ;

String SIGNATURE_ALGORITHM = "MD5withRSA" ;

int MAX_ENCRYPT_BLOCK = 117 ;

int MAX_DECRYPT_BLOCK = 128 ;

public static byte [] decryptByPublicKey( byte [] encryptedData, String publicKey)

             throws Exception {

         byte [] keyBytes = Base64.decodeBase64(publicKey);

         X509EncodedKeySpec x509KeySpec = new X509EncodedKeySpec(keyBytes);

         KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);

         Key publicK = keyFactory.generatePublic(x509KeySpec);

         Cipher cipher = Cipher.getInstance(keyFactory.getAlgorithm());

         cipher.init(Cipher.DECRYPT_MODE, publicK);

         int inputLen = encryptedData.length;

         ByteArrayOutputStream out = new ByteArrayOutputStream();

         int offSet = 0 ;

         byte [] cache;

         int i = 0 ;

         // 对数据分段解密

         while (inputLen - offSet > 0 ) {

             if (inputLen - offSet > MAX_DECRYPT_BLOCK) {

                 cache = cipher.doFinal(encryptedData, offSet, MAX_DECRYPT_BLOCK);

             } else {

                 cache = cipher.doFinal(encryptedData, offSet, inputLen - offSet);

             }

             out.write(cache, 0 , cache.length);

             i++;

             offSet = i * MAX_DECRYPT_BLOCK;

         }

         byte [] decryptedData = out.toByteArray();

         out.close();

         return decryptedData;

     }

     public static byte [] encryptByPublicKey( byte [] data, String publicKey)

             throws Exception {

         byte [] keyBytes = Base64.decodeBase64(publicKey);

         X509EncodedKeySpec x509KeySpec = new X509EncodedKeySpec(keyBytes);

         KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);

         Key publicK = keyFactory.generatePublic(x509KeySpec);

         // 对数据加密

         Cipher cipher = Cipher.getInstance(keyFactory.getAlgorithm());

         cipher.init(Cipher.ENCRYPT_MODE, publicK);

         int inputLen = data.length;

         ByteArrayOutputStream out = new ByteArrayOutputStream();

         int offSet = 0 ;

         byte [] cache;

         int i = 0 ;

         // 对数据分段加密

         while (inputLen - offSet > 0 ) {

             if (inputLen - offSet > MAX_ENCRYPT_BLOCK) {

                 cache = cipher.doFinal(data, offSet, MAX_ENCRYPT_BLOCK);

             } else {

                 cache = cipher.doFinal(data, offSet, inputLen - offSet);

             }

             out.write(cache, 0 , cache.length);

             i++;

             offSet = i * MAX_ENCRYPT_BLOCK;

         }

         byte [] encryptedData = out.toByteArray();

         out.close();

         return encryptedData;

     }

     String str = "idNum=633335199606143151&name=蔺四十&phone=17610010005" ;

String result = "" ;

try {

     result = Base64.encodeBase64String(encryptByPublicKey(str.getBytes(), RSA_PUB_KEY));

     System.out.println(result);

} catch (Exception e) {

     // TODO Auto-generated catch block

     e.printStackTrace();

}

print(result);

vars.put( "sign" ,result);

return result;

import org.apache.commons.codec.binary.Base64;