一种利用编译型语言保护Python源码方法

在使用Python 开发一段时间发现Python有不少优势，可是Python是解释型语言，Python项目的部署时源码是裸露的，针对这个问题如今也有几种解决方案。在使用以上几种解决方案保护Python源码时不太方便和安全。因此提出一种利用编译型语言保护Python源码方法。python

思考过程:git

计划使用纯Python代码利密码学保护源码，随着代码的编写发现不管如何利用对称加密、非对称加密和Hash算法都须要一个入口代码，别人能够利用入口代码一步步的进行破解。（论证没法解决问题）
由于以前写过C/C++，考虑编译型语言为何不须要保护源码，编译型语言的可执行文件是二进制文件，很难进行反编译。随着这个思路能不能利用编译型语言的保密性对Python源码进行保护。
因为Python代码在运行时会被加载到内存，当程序运行成功是磁盘上的Python源码能够不存在。
利用Go将Python源码加密，使用时执行Go的二进制执行文件进行解密，Python代码启动成功后删除解密后的Python源码，只保留加密后的Python源码。
源码在Github上：（https://github.com/wugsh/simple_tools/blob/main/Python_code_protection.go）。

package main

/* * Using Go binary file and encryption method to prevent Python code leakage. * Encrypting Python files --> Decrypting Python files --> Runing Python files --> Delete Decrypted Python files * Only Go binary and Encrypted Python files are left at run time and stop time. */

import (
    "fmt"
    "io/ioutil"
	"os"
	"os/exec"
    "crypto/cipher"
    "crypto/des"
    "crypto/sha256"
	"encoding/base64"
	"syscall"
	"time"
)

//File encryption
func EncryptFile(fileName string, writfileName string, key []byte) (int, error) { 
	file, err:=os.Open(fileName)
	writfile, err1:=os.Create(writfileName)
    if err!=nil { 
        fmt.Println("File not found")
        os.Exit(0)
	}
	if err1!=nil { 
		fmt.Println("File not found")
		os.Exit(0)
	}
	defer file.Close()
	defer writfile.Close()
    //Read file contents
    plain,_:=ioutil.ReadAll(file)
    //Create block
	block,_:=des.NewTripleDESCipher(key)
	
	EncryptMode:=cipher.NewCBCEncrypter(block,key[:8])  
    //Plaintext complement
    plain=PKCS5append(plain)
    EncryptMode.CryptBlocks(plain,plain)
    err2:= ioutil.WriteFile(writfileName, []byte(base64.StdEncoding.EncodeToString(plain)), 0777)
    if err2!=nil{ 
		fmt.Println("Failed to save encrypted file")
		return -1, nil
    }else{ 
		fmt.Println("The file is encrypted. Remember to encrypt the key")
		return 0, nil
    }
}


//Decrypt files
func DecryptFile(fileName string, writfileName string, key []byte) (int, error) { 
	file,err:=os.Open(fileName)
	writfile, err1:=os.Create(writfileName)
    if err!=nil { 
		fmt.Println("File not found")
        os.Exit(0)
	}
	if err1!=nil { 
		os.Exit(0)
	}
	defer file.Close()
	defer writfile.Close()
    //Read file contents
    plain,_:=ioutil.ReadAll(file)
    //Create block
	block,_:=des.NewTripleDESCipher(key)
	DecryptMode:=cipher.NewCBCDecrypter(block,key[:8])
    plain,_=base64.StdEncoding.DecodeString(string(plain))
    DecryptMode.CryptBlocks(plain,plain)
    plain=PKCS5remove(plain)    
    err2 := ioutil.WriteFile(writfileName,plain,0777)
    if err2!=nil{ 
		fmt.Println("Failed to save decrypted file")
		return -1, err2
    }else{ 
		fmt.Println("File decrypted")
		return 0, nil
    }
}

 
func PKCS5append(plaintext []byte) []byte { 
    num := 8 - len(plaintext)%8
    for i:=0;i<num;i++{ 
        plaintext=append(plaintext,byte(num))
    }
    return plaintext
}
 

func PKCS5remove(plaintext []byte) []byte { 
    length := len(plaintext)
    num := int(plaintext[length-1])
    return plaintext[:(length - num)]
}


func main() { 
	fmt.Println(syscall.Getpid())
    var PassKey string = "***********************"
    //Generate key
    PassKeyByte :=sha256.Sum224([]byte(PassKey))
	key :=PassKeyByte[:24]
	num1, _:= EncryptFile("PrimaryFile.py", "EncryptFile.py", key)
	num2, _ := DecryptFile("EncryptFile.py", "DecryptFile.py", key)
	//Using a goroutine for task processing
	go RunPython()
	//Wait for the task to finish processing
	time.Sleep(time.Second * 5)
	
	fmt.Println(num1, num2)
}

//Execute Python program
func RunPython() { 
	cmd := exec.Command("python3", "DecryptFile.py")
	lines,_ := cmd.Output()
	err2 := cmd.Start()
	if err2!=nil{ 
        fmt.Println(err2)
        os.Exit(1)
    } else { 
		fmt.Println(string(lines))
	}
	err3 := cmd.Wait()
	if err3 !=nil { 
		fmt.Println(err3)
	} else { 
		fmt.Println("succeeded")
	}
    err := os.Remove("DecryptFile.py")
	if err != nil { 
		fmt.Println("Deletion failed")
	} else { 
        fmt.Println("Deletion succeeded")		
	}	
}