golang进行加密

crc64加密

package main

import (
	"fmt"
	"hash/crc64"
)

func main(){
	s:="打死udhanckhdkja"
	//先创建一个table
	table := crc64.MakeTable(crc64.ECMA)
	//传入字节切片和table，返回一个uint64
	fmt.Println(crc64.Checksum([]byte(s), table)) //4295263180068867775

}

　　

md5加密

package main

import (
	"crypto/md5"
	"encoding/hex"
	"fmt"
)

func main(){
	//方法一：
	s:="udhanckhdkja"
	//返回字节切片，长度为16
	res := md5.Sum([]byte(s))
	//注意此时不可以使用string(res)来转化，会得到乱码
	//要使用hex.EncodeToString，但是要传入切片
	fmt.Println(hex.EncodeToString(res[:]))//538a7e42c664f84d1dba984976489311

	//方法二：
	md5ctx := md5.New()
	md5ctx.Write([]byte(s))
	res1 := md5.Sum(nil)
	fmt.Println(hex.EncodeToString(res1[:]))//d41d8cd98f00b204e9800998ecf8427e

}

base64加密　　

package main

import (
	"encoding/base64"
	"fmt"
)

func string_b64_encode(s string){
	encodeString := base64.StdEncoding.EncodeToString([]byte(s))
	fmt.Println(encodeString)

	decodeString, err:= base64.StdEncoding.DecodeString(encodeString)
	if err!=nil{
		fmt.Println("err=",err)
	}
	fmt.Println(string(decodeString))
}

func url_b64_encode(url string){
	encodeString := base64.URLEncoding.EncodeToString([]byte(url))
	fmt.Println(encodeString)

	decodeString, err:= base64.URLEncoding.DecodeString(encodeString)
	if err!=nil{
		fmt.Println("err=",err)
	}
	fmt.Println(string(decodeString))
}

func main(){
	string_b64_encode("satori")
	/*
	c2F0b3Jp
	satori
	 */
	url_b64_encode("http://www.baidu.com")
	/*
	aHR0cDovL3d3dy5iYWlkdS5jb20=
	http://www.baidu.com
	 */
}