Jmeter进行RSA加密

问题： 登录请求参数中输入了正确的账号密码，响应结果报错“用户名或密码错误”。

原因分析： 密码需要以RSA加密的方式传参，不能明文。
解决方法：

在该登录接口下新增一个B e a n S h e l l 预处理程序 \color{red}{BeanShell预处理程序}BeanShell预处理程序，贴入以下代码并进行如下修改：

在String RSA_PUB_KEY = “输入公钥密码”; 中输入正确的公钥密码。
将 String str = “${password}”; 中的${password}设置为需要加密的变量值/常量。
vars.put(“rsa_pwd”, result); 中的rsa_pwd为jmeter脚本中引用的变量名，可自行修改。
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;
import java.net.URLEncoder;
String RSA_PUB_KEY = "输入公钥密码";
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;
}
//${password}这里设置为自己的密码
String str = "${password}";
String result = "";

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

result1 = encryptByPublicKey(str.getBytes(), RSA_PUB_KEY);
System.out.println(result);
} catch(Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

print(result);
vars.put("rsa_pwd", result);//rsa_pwd是jmeter脚本中引用的变量名
return result1;

 

 

在登录接口中引用加密后的变量名进行传参。

 

 

再次运行，响应成功，取到token。

 

 

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原文链接：https://blog.csdn.net/weixin_49026134/article/details/127231787