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Golang实现sha256或sha512加密

 2 years ago
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代码实现sha-256加密算法

sha-256.go

package tools

import (
    "crypto/sha256"
    "encoding/hex"
)

//SHA256生成哈希值

func GetSHA256HashCode(stringMessage string) string {

    message := []byte(stringMessage) //字符串转化字节数组
    //创建一个基于SHA256算法的hash.Hash接口的对象
    hash := sha256.New() //sha-256加密
    //hash := sha512.New() //SHA-512加密
    //输入数据
    hash.Write(message)
    //计算哈希值
    bytes := hash.Sum(nil)
    //将字符串编码为16进制格式,返回字符串
    hashCode := hex.EncodeToString(bytes)
    //返回哈希值
    return hashCode

}

用main方法调用sha-256

main.go

package main

import (
    "GraduationProject/tools"
    "fmt"
)

func main() {

    txt := "Hello World!"

    code := tools.GetSHA256HashCode(txt)

    fmt.Println("\n加密前的明文\n", txt, "\nSHA-256加密后的密文:\n", code)
}

加密前的明文
 Hello World!
SHA-256加密后的密文:
 7f83b1657ff1fc53b92dc18148a1d65dfc2d4b1fa3d677284addd200126d9069

代码实现sha-512

将sha-256.go文件的第15行加上注释，16行去掉注释


package tools

import (
    "crypto/sha256"
    "encoding/hex"
)

//SHA256生成哈希值

func GetSHA256HashCode(stringMessage string) string {

    message := []byte(stringMessage) //字符串转化字节数组
    //创建一个基于SHA256算法的hash.Hash接口的对象
    //hash := sha256.New() //sha-256加密
    hash := sha512.New() //SHA-512加密
    //输入数据
    hash.Write(message)
    //计算哈希值
    bytes := hash.Sum(nil)
    //将字符串编码为16进制格式,返回字符串
    hashCode := hex.EncodeToString(bytes)
    //返回哈希值
    return hashCode

}

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