Go语言实现AzDG可逆加密算法实例

本文实例讲述了Go语言实现AzDG可逆加密算法。分享给大家供大家参考。具体实现方法如下：

package main

import (

 "fmt"

 "crypto/md5"

 "encoding/base64"

 "time"

)
var cipher = "密鑰"

var h = md5.New()
func cipherEncode(sourceText string) string { 

 h.Write([]byte(cipher))

 cipherHash := fmt.Sprintf("%x", h.Sum(nil))

 h.Reset()

 inputData := []byte(sourceText)

 loopCount := len(inputData)

 outData := make([]byte,loopCount)

 for i:= 0; i < loopCount ; i++ {

  outData[i] = inputData[i] ^ cipherHash[i%32]

 } 

 return fmt.Sprintf("%s", outData)

}
func encode(sourceText string) string { 

 h.Write([]byte(time.Now().Format("2006-01-02 15:04:05")))

 noise := fmt.Sprintf("%x", h.Sum(nil))

 h.Reset()

 inputData := []byte(sourceText)

 loopCount := len(inputData)

 outData := make([]byte,loopCount*2)

 

 for i, j := 0,0; i < loopCount ; i,j = i+1,j+1 {  

  outData[j] = noise[i%32]

  j++

  outData[j] = inputData[i] ^ noise[i%32]

 }

 

 return base64.StdEncoding.EncodeToString([]byte(cipherEncode(fmt.Sprintf("%s", outData))))

}
func decode(sourceText string) string {

 buf, err := base64.StdEncoding.DecodeString(sourceText)

 if err != nil {

  fmt.Println("Decode(%q) failed: %v", sourceText, err)

  return ""

 }

 inputData := []byte(cipherEncode(fmt.Sprintf("%s", buf)))

 loopCount := len(inputData)

 outData := make([]byte,loopCount)

 for i, j := 0,0; i < loopCount ; i,j = i+2,j+1 {  

  outData[j] = inputData[i] ^ inputData[i+1]

 }

 return fmt.Sprintf("%s", outData)

}
func main() {

        s := encode("張學友")

 fmt.Println(s)

 fmt.Println(decode(s))

}

希望本文所述对大家的Go语言程序设计有所帮助。