關於Jmeter做Rsa加密解密的一些總結

先上加密腳本：

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="你的公鑰";//去掉首尾
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;
        // 對數據分段解密
        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("RSA");
        Key publicK = keyFactory.generatePublic(x509KeySpec);
        // 對數據加密
        Cipher cipher = Cipher.getInstance("RSA");
        cipher.init(Cipher.ENCRYPT_MODE, publicK);
        int inputLen = data.length;
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        int offSet = 0;
        byte[] cache;
        int i = 0;
        // 對數據分段加密
        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=vars.get("body"); 
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);
vars.put("RSA_PUB_KEY",RSA_PUB_KEY);
log.info("加密串=",result);
log.info("加密body=",str);
return result;

1.因為是加密后的參數放到請求體中，所以我在另外一個beanshell定義了一個json格式的字符串，然后這就造成了一個問題:字符串帶轉義符,jmeter對帶轉義符的字符串用$來引用會直接報錯！！！！解決辦法是改用vars.get(“body”)來獲取公共變量

2.加密后的字符串直接塞進請求體里了

3.返回的報文是私鑰加密，公鑰解密的密文，這里我選擇了用后置處理器來解密：

輸出：將解密結果輸出的參數命名

輸入：導入rsa公鑰，這在上面的腳本已經提前定義好

操作：要是解密的是響應的json，則勾選響應文本-jsonpath表達式

　　　要是返回的直接是加密的密文，則只勾選響應文本，不勾選jsonpath，這里我是使用了這種方法

　　    針對其他變量解密，勾選變量名並輸入即可

所用jmeter的版本：5.1.1 r1855173

 

下載地址：
鏈接：https://pan.baidu.com/s/1lpvmNd7jd5v7vG3IGfum2A 提取碼：q8ym

 

 

 

參考鏈接：https://www.cnblogs.com/artoftest/p/7298929.html

　　　　　https://blog.csdn.net/q13554515812/article/details/99298387