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。