将Java加密代码到Python相当于

问题描述：

我一直在尝试下面的Java代码转换为它的等效蟒：将Java加密代码到Python相当于

Encrypt.java

import java.io.BufferedReader; 
import java.io.FileInputStream; 
import java.io.FileNotFoundException; 
import java.io.InputStreamReader; 
import java.io.UnsupportedEncodingException; 
import java.security.Key; 
import java.security.KeyFactory; 
import java.security.NoSuchAlgorithmException; 
import java.security.PublicKey; 
import java.security.cert.CertificateException; 
import java.security.cert.CertificateFactory; 
import java.security.cert.X509Certificate; 
import java.security.spec.InvalidKeySpecException; 
import java.security.spec.KeySpec; 
import java.security.spec.X509EncodedKeySpec; 
import java.util.Arrays; 
import org.apache.commons.codec.binary.Base64; 
//import org.jose4j.base64url.Base64; 

public class Encrypt { 

    public static void main(String[] args) 
      throws InvalidKeySpecException, NoSuchAlgorithmException, UnsupportedEncodingException, CertificateException, FileNotFoundException { 
     PublicKey pubKey; 
     Object localObject1 = new 
     String("MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA76y3+1w4Ld9Q4WvHQkCkg6qjwq2wWOYMV9nAthX6ugatNlShRb2gBmy" 
     + 
     "qvh7tOYHhjAhkG9Z33jCVinPuhgb0ioa5/sFAgP5LDdo5SBk4b4n/wRUbdMhfFFcTT0As2OsmdBc2iONUaG4g3WjgRODxy6LLahms6YgTnG+AqeDo8LpXxsiFXe" 
     + 
     "iqGUyKQU1l16BPc2xyG+tDitFbKHx9pDL12e/w5b4G4Zg4yJgbNlZrGc3Udz5EbDREnAwirjAA3F6x2DF3j746vETb1g2y6+P5sS4lvG3XmaB1JBlhNh5qpqADRqmE" 
     + "MWeiYhrRcK9KjS1URSUizGPo96d8R82DmXvYKQIDAQAB"); 

     //localObject1 = new X509EncodedKeySpec(Base64.decode(((String)localObject1).getBytes("utf-8"))); 
     localObject1 = new X509EncodedKeySpec(Base64.decodeBase64(((String)localObject1).getBytes("utf-8"))); 
     localObject1 = KeyFactory.getInstance("RSA").generatePublic((KeySpec)localObject1); 
     System.out.println((PublicKey)localObject1); 
     System.out.println("___________________________________________________________________________________________________________________________________________________"); 

//  String secret_pub_key= //"-----BEGIN RSA PUBLIC KEY-----" + 
//    "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwkvq7mHuTMGeJF/qiAot"+ 
//    "OcLTd6hjDEcMHIk2IY35JInuypD6WieogOxSS6kHYho/U+BW/Cgz0XjziPIQSJZx"+ 
//    "AGOrtdZrTa6n6S6I65YB2wPB93lLi/qnBmUSetEgAgM+MOfiYT8Dift9Mut+BvbE"+ 
//    "iFMH163ovoiTyLDpbTYDB6InzFzu1l7G01pi/ZAc69kWrJ+yNMEUcnAerRPt30et"+ 
//    "XAbKD2lC696VJa/2xtWZ5T7vwMpFLIaGFAg228ZifgwDIRFsBmwPsAsngQSGVVBo"+ 
//    "Ijm3fb0PUDV4MTw+cNT0ldHbYCAWy6zgA0K7eL5LcUN8+ai7u6VMWYUT4FAvYNiP"+ 
//    "IwIDAQAB"; 
//    //"-----END RSA PUBLIC KEY-----"; 
//   X509EncodedKeySpec pubKeySpec = new X509EncodedKeySpec(Base64.decode(secret_pub_key)); 
//   KeyFactory keyFactory = KeyFactory.getInstance("RSA"); 
//   PublicKey pubKey = keyFactory.generatePublic(pubKeySpec); 

     Object secret_pub_key= new String(//"-----BEGIN RSA PUBLIC KEY-----" + 
       "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApzQvzc+chU92SSh2eukY"+ 
       "ycdTJArCjL4+AqW8a2lKZ2jb5g04q6FGSRJgNkuggXt7U5ys5pb+J0699vY9rzgz"+ 
       "+WmH6W/ZRZ2hAf3rtWaC1YYetD1SfmD2OGItGfkFYuppjjjKXEnTDzCBQT5IL7hd"+ 
       "lnlCfpDkcPmJWvKJU+5gJek9RanVQYXLWgtOIVrQ7LJhQEFDMuYSw+rz7+paBxNq"+ 
       "XeHTvDk/ylGtHjb3xOvbVg3DfL2z76YYX69Ae3Cd1rlqaY0IT01k3oeqNZg3638T"+ 
       "i8l+6ytwChRhtOHZh5XCaW6Cfbz2nezgYgY1qTAKK05o8Of+W/dErUt4166qnjBl"+ 
       "+wIDAQAB"); 
       //"-----END RSA PUBLIC KEY-----"; 


     secret_pub_key = new X509EncodedKeySpec(Base64.decodeBase64(((String)secret_pub_key).getBytes("utf-8"))); 
     secret_pub_key = KeyFactory.getInstance("RSA").generatePublic((KeySpec)secret_pub_key); 
     pubKey = (PublicKey)secret_pub_key; 

     Object localObject; 
     Lc lc = new Lc(); 
     System.out.println("\n\nlc.pub is" + lc.pub); 
     System.out.println("\n\n\nokokokokok" + pubKey.getEncoded()); 
     //byte[] arrayOfByte = new String(Base64.encodeBase64(lc.pub.getEncoded())).getBytes(); 
     byte[] arrayOfByte = new String(Base64.encodeBase64(pubKey.getEncoded())).getBytes(); 
     StringBuilder localStringBuilder1 = new StringBuilder(); 
     int i = 0; 
     while (i < arrayOfByte.length) { 
      if (arrayOfByte.length > i + 200) { 
       localObject = Arrays.copyOfRange(arrayOfByte, i, i + 200); 
      } else { 
       localObject = Arrays.copyOfRange(arrayOfByte, i, arrayOfByte.length + 1); 
      } 
      StringBuilder localStringBuilder2 = new StringBuilder(); 
      lc.pub = (PublicKey)localObject1; 
      localObject = new String((byte[])localObject); 
      localStringBuilder1.append(lc.upperDot((String)localObject) + ":::"); 
      i += 200; 
     } 
     System.out.println("The ducking key is " + localStringBuilder1.toString()); 
    } 
}

Lc.java

import java.security.InvalidKeyException; 
import java.security.Key; 
import java.security.KeyPair; 
import java.security.KeyPairGenerator; 
import java.security.NoSuchAlgorithmException; 
import java.security.PrivateKey; 
import java.security.PublicKey; 
import java.security.Signature; 
import java.security.SignatureException; 
import javax.crypto.Cipher; 
import javax.crypto.spec.IvParameterSpec; 
import javax.crypto.spec.SecretKeySpec; 
import org.apache.commons.codec.binary.Base64; 

public class Lc { 
    public static PublicKey pub; 
     public static PrivateKey pri; 
     public byte[] by; 
     public String dot; 
     public Lc() { 
      Object localObject = "RSA"; 
      try 
      { 
      localObject = KeyPairGenerator.getInstance((String)localObject); 
      KeyPair localKeyPair = ((KeyPairGenerator)localObject).generateKeyPair(); 
      localObject = localKeyPair.getPublic(); 
      pub = (PublicKey)localObject; 
      localObject = localKeyPair.getPrivate(); 
      pri = (PrivateKey)localObject; 
      } 
      catch (NoSuchAlgorithmException localNoSuchAlgorithmException) 
      { 
      localNoSuchAlgorithmException.printStackTrace(); 
      } 
    } 
     public static String upperDot(String paramString) 
     { 
     Object localObject = "RSA/ECB/PKCS1Padding"; 
     try 
     { 
      Cipher localCipher = Cipher.getInstance((String)localObject); 
      localObject = pub; 
      int i = 1; 
      localCipher.init(i, (Key)localObject); 
      localObject = paramString.getBytes(); 
      byte[] arrayOfByte1 = localCipher.doFinal((byte[])localObject); 
      byte[] arrayOfByte2 = Base64.encodeBase64(arrayOfByte1); 
      localObject = new String(arrayOfByte2); 
      return (String)localObject; 
     } 
     catch (Exception localException) 
     { 
      System.out.print(localException); 
     } 
     return null; 
     } 
}

请忽略上述2个java文件的糟糕设计和调试打印s tatements

，上述产生的输出，这是我感兴趣的是最后一个输出语句的内容：

的回避关键是t4z2jf9GKtKvXiXCPYU3u7Y0LwQOOeQBVi + YRATc3GqyTNb085bRLUVqiNT5v/ZcZl2FZPegeN8OTG9vPbwuY1HrQ04xv0vUf3ohJORiUXwEQtoBVMDnKHib50FPZCbAZIp/1u0KgEPBV9rEe7BmHi2UGCNnp0e50G68cBPLknUinBIIYIIrw/o3U4SAT + uBdo6wyi/x0tWR3El8gJpL34JJVWzdzi4y61cPZI31gxyY19t1EzzmtqB0wnjV5RvTsavR5s3RgtBu3EV + b43poam2K0CsRyfB2lFawkZBnvRL6GzvozBpUYe4awdPbU4Pjvuju5B3zWXloQ5kMVZAkg == ::: MpcHcJWhGdYrS1VLza + ereOU1ZRZ9LyVTN0KBBdQLIjYXChX1eKtRdftrF306L5BE8Ni9ibTylbcsc6tocphVpYnCvYN2eKVcEoHLyk9Iz/Cf2ikYJCUFtHh/CP nSILhwI7txdVds0Il58uDMevMnvvRntqVR7nw6UUmUVwmtFvNWVdceP61BHc9YsDMdQs8jPOeGAHWmqA2g4ODYB2W07yQhmwNIQZEmkmrfRHUd1dqM57sIWS9HdgEbrnqhyt1pIWrCxzgYbzZCuaDS/llcFsqgLBbaPpTg2qNUFi2x3r1jJ1UeJeX + Y/mOhrEvBXSLmadsCYmEROIutNgoVWigg == :::

现在我想实现通过蟒蛇完全相同的行为（2.7，如果该事项）。我迄今为止依靠pycrypto和M2Crypto，但都没有帮助。

这是我在制造蟒当量的上述的尝试：

from Crypto.PublicKey import RSA 
from base64 import b64decode 
from base64 import b64encode 

def ecnryptorFun(key, secret): 
    encrypted = key.encrypt(secret, 1) 
    final_text = b64encode(encrypted[0]) 
    return final_text 

def sayHello(body): 
    url = 'https://consumer-app-development.appspot.com/api/sayHello' 
    res = requests.post(url=url, data=body) 
    return res.text 

key64 = b'MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA76y3+1w4Ld9Q4WvHQkCkg6qjwq2wWOYMV9nAthX6ugatNlShRb2gBmyqvh7tOYHhjAhkG9Z33jCVinPuhgb0ioa5/sFAgP5LDdo5SBk4b4n/wRUbdMhfFFcTT0As2OsmdBc2iONUaG4g3WjgRODxy6LLahms6YgTnG+AqeDo8LpXxsiFXeiqGUyKQU1l16BPc2xyG+tDitFbKHx9pDL12e/w5b4G4Zg4yJgbNlZrGc3Udz5EbDREnAwirjAA3F6x2DF3j746vETb1g2y6+P5sS4lvG3XmaB1JBlhNh5qpqADRqmEMWeiYhrRcK9KjS1URSUizGPo96d8R82DmXvYKQIDAQAB' 

keyDER = b64decode(key64) 
keyPub = RSA.importKey(keyDER) 

secret = b"MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApzQvzc+chU92SSh2eukYycdTJArCjL4+AqW8a2lKZ2jb5g04q6FGSRJgNkuggXt7U5ys5pb+J0699vY9rzgz+WmH6W/ZRZ2hAf3rtWaC1YYetD1SfmD2OGItGfkFYuppjjjKXEnTDzCBQT5IL7hdlnlCfpDkcPmJWvKJU+5gJek9RanVQYXLWgtOIVrQ7LJhQEFDMuYSw+rz7+paBxNqXeHTvDk/ylGtHjb3xOvbVg3DfL2z76YYX69Ae3Cd1rlqaY0IT01k3oeqNZg3638Ti8l+6ytwChRhtOHZh5XCaW6Cfbz2nezgYgY1qTAKK05o8Of+W/dErUt4166qnjBl+wIDAQAB" 

#secret1 = b64encode(secret) 
arrayOfByte = bytearray(secret) 

i = 0 
localStringBuilder1 = "" 
while i < len(arrayOfByte): 
    if len(arrayOfByte) > (i+200): 
    localObject = arrayOfByte[i:i+200] 
    else: 
    localObject = arrayOfByte[i:len(arrayOfByte)+1] 
    localObj_byte_array = bytearray(localObject) 
    localStringBuilder1 = localStringBuilder1 + ecnryptorFun(keyPub, str(localObject)) + ':::' 
    #localStringBuilder1 = localStringBuilder1 + ecnryptorFun(encryption_key, localObj_byte_array) + ':::' 
    i += 200; 

print localStringBuilder1

上述Python代码的输出

vkqbraD/5HMvs9LG59VXCGCLUoJ0msU6fVvLMDCc8fQ41S3R3IC0EfxLCk9FoHUIGK5h90Rd0at2ROvcOVCtESAYZlYYCB1U99NqWCFLvyDBxS4uEAVHD5yv4U82Dmn/P/ASI + d/GxnvP/xvyiI + tp39lWx77DuV4hlnRbltHu9f4o4cvqZ + Nn7wCzY1TBzIClT8f4lx2g9E/5 + mhfkQIHejGIAMyJXl3xy + qhQSoy8DvudGQU95eGfDRdci4yqOwDeG2 + QlUip627tMbttAroWQjM8jC419kFPetTlmV/RczE/vcwnyM3iEnrhB9KnjRLYEecJ8 mEYU7L/TxBe +的Tg == ::: V1oZBPETF9ryap59T4zOwfW0/pASSCULWL8ZlvUrSlRLeaZmIxplNmewqyUnrhwIbnpDvwhmz7 + 2/Dd2EN4hJndRnGl7aoEX8/GJP0Kz9vL2qEDbIGQC/Dv6O75KPFZ/E06DYLcycLhNZYxudwVP9rJAhFEEMgefpY40v1 + B6sqqogrGnZhfwITaqpU0FKTbHSlHUymlD6Cn4lb0yLMISG6MZRQrP5B67UkGexlpxPQTHsXcLy0vTEzMZkvdxbv4YtawNvmgeQEgD1jqIB45pOngrwp3jcs9D9Ib2hCwpOoqkwOV/YAA + XO + dkPo8BxOw5DH/jWRcksb3N65YEmlvQ == :::

现在虽然上述产生非常相似的输出，但它不是正确的。为什么？因为当上面的java代码的输出被发送到后端时，我收到一个HTTP 200 OK和期望的响应。

但是，当上面的python代码的输出与后端类似地发送时，我收到500内部服务器错误，意思是（根据我的假设，考虑到所有其他参数，头文件等）在java和python HTTP请求之间保持完全一致）后端输入不正确，因此破坏（再次请忽略500，我同意它应该是更有意义的东西，绝对不是500）

我无权访问后端。它更像是一个红色的团队 - 我们正在做的蓝色团队练习

此外，我可能会调用上面的python代码，仍然设法达到最终结果并完成工作，但那会是更多的是黑客攻击，尽管这已经足够了，但我更感兴趣的是知道如何才能够独自完成Python。

按下面我的意见提出了一些建议尝试这样做，以及：所以，我想这个问题，以及：

from Crypto.Cipher import PKCS1_v1_5 

def encryptMsg(secret): 
    message = secret 
    key = RSA.importKey(open('myPubkey.pem').read()) 
    cipher = PKCS1_v1_5.new(key) 
    ciphertext = b64encode(cipher.encrypt(message)) 
    return ciphertext

，然后在while循环，这样的：

localStringBuilder1 = localStringBuilder1 + encryptMsg(str(localObject)) + ':::'

仍似乎没有工作。与以前相同的结果。

响应不看进过多的代码：在Java中你使用PKCS＃1 V1。 5填充，但在Python中，您没有使用任何填充。您需要使用'PKCS1_5'类 –

谢谢。说得通。我看到有[https://www.dlitz.net/software/pycrypto/api/2.6/Crypto.Signature.PKCS1_v1_5-module.html] 让我探索它。 – qre0ct

不..看上去不像上面的链接可以提供帮助。有没有其他的Python库可以提供这个功能？ – qre0ct

答

感谢https://stackoverflow.com/users/1816580/artjom-b在上面的评论中指出我正确的方向。好的。什么工作是这样的：

from Crypto.PublicKey import RSA 
from base64 import b64decode 
from base64 import b64encode 
from Crypto.Cipher import PKCS1_v1_5 

def encryptMsg(key, secret): 
    message = secret 
    cipher = PKCS1_v1_5.new(key) 
    ciphertext = b64encode(cipher.encrypt(message)) 
    return ciphertext 

from Crypto.PublicKey import RSA 
from base64 import b64decode 
from base64 import b64encode 
from Crypto.Cipher import PKCS1_v1_5 
import requests 


# def ecnryptorFun(key, secret): 
# encrypted = key.encrypt(secret, 1) 
# final_text = b64encode(encrypted[0]) 
# return final_text 

def encryptMsg(key, secret): 
    message = secret 
    cipher = PKCS1_v1_5.new(key) 
    ciphertext = b64encode(cipher.encrypt(message)) 
    return ciphertext 

def sayHello(body): 
    url = 'https://consumer-app-development.appspot.com/api/sayHello' 
    res = requests.post(url=url, data=body) 
    return res.text 

# this is basically the keyString value itself 
key64 = b'MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA76y3+1w4Ld9Q4WvHQkCkg6qjwq2wWOYMV9nAthX6ugatNlShRb2gBmyqvh7tOYHhjAhkG9Z33jCVinPuhgb0ioa5/sFAgP5LDdo5SBk4b4n/wRUbdMhfFFcTT0As2OsmdBc2iONUaG4g3WjgRODxy6LLahms6YgTnG+AqeDo8LpXxsiFXeiqGUyKQU1l16BPc2xyG+tDitFbKHx9pDL12e/w5b4G4Zg4yJgbNlZrGc3Udz5EbDREnAwirjAA3F6x2DF3j746vETb1g2y6+P5sS4lvG3XmaB1JBlhNh5qpqADRqmEMWeiYhrRcK9KjS1URSUizGPo96d8R82DmXvYKQIDAQAB' 

keyDER = b64decode(key64) 
keyPub = RSA.importKey(keyDER) 

secret = b"MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApzQvzc+chU92SSh2eukYycdTJArCjL4+AqW8a2lKZ2jb5g04q6FGSRJgNkuggXt7U5ys5pb+J0699vY9rzgz+WmH6W/ZRZ2hAf3rtWaC1YYetD1SfmD2OGItGfkFYuppjjjKXEnTDzCBQT5IL7hdlnlCfpDkcPmJWvKJU+5gJek9RanVQYXLWgtOIVrQ7LJhQEFDMuYSw+rz7+paBxNqXeHTvDk/ylGtHjb3xOvbVg3DfL2z76YYX69Ae3Cd1rlqaY0IT01k3oeqNZg3638Ti8l+6ytwChRhtOHZh5XCaW6Cfbz2nezgYgY1qTAKK05o8Of+W/dErUt4166qnjBl+wIDAQAB"  
arrayOfByte = bytearray(secret) 

i = 0 
localStringBuilder1 = "" 
while i < len(arrayOfByte): 
    if len(arrayOfByte) > (i+200): 
    localObject = arrayOfByte[i:i+200] 
    else: 
    localObject = arrayOfByte[i:len(arrayOfByte)+1] 
    localObj_byte_array = bytearray(localObject) 
    localStringBuilder1 = localStringBuilder1 + encryptMsg(keyPub, str(localObject)) + ':::' 
    i += 200; 

print localStringBuilder1

而现在的字符串我得到的后端与200 OK

将Java加密代码到Python相当于

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