Golang golang-hashing (snippet)

Go programming example 'golang-hashing'

golang-hashing

Golang beginners example: golang-hashing

package main

import (
    "crypto/hmac"
    "crypto/md5"
    "crypto/sha256"
    "crypto/sha512"
    "encoding/base64"
    "fmt"
    "io"
)

func main() {
    input := "Lorem Ipsum dolor sit Amet"
    md5 := md5.New()
    sha_256 := sha256.New()
    sha_512 := sha512.New()
    io.WriteString(md5, input)
    sha_256.Write([]byte(input))
    sha_512.Write([]byte(input))
    sha_512_256 := sha512.Sum512_256([]byte(input))
    hmac512 := hmac.New(sha512.New, []byte("secret"))
    hmac512.Write([]byte(input))

    //4db45e622c0ae3157bdcb53e436c96c5
    fmt.Printf("md5:\t\t%x\n", md5.Sum(nil))

    //eb7a03c377c28da97ae97884582e6bd07fa44724af99798b42593355e39f82cb
    fmt.Printf("sha256:\t\t%x\n", sha_256.Sum(nil))

    //5cdaf0d2f162f55ccc04a8639ee490c94f2faeab3ba57d3c50d41930a67b5fa6915a73d6c78048729772390136efed25b11858e7fc0eed1aa7a464163bd44b1c
    fmt.Printf("sha512:\t\t%x\n", sha_512.Sum(nil))

    //34c614af69a2550a4d39138c3756e2cc50b4e5495af3657e5b726c2ac12d5e60
    fmt.Printf("sha512_256:\t%x\n", sha_512_256)

    //GBZ7aqtVzXGdRfdXLHkb0ySp/f+vV9Zo099N+aSv+tTagUWuHrPeECDfUyd5WCoHBe7xkw2EdpyLWx+Ge4JQKg==
    fmt.Printf("hmac512:\t%s\n", base64.StdEncoding.EncodeToString(hmac512.Sum(nil)))
}

Useful links

• Learn Go: https://golangr.com
• Download Go: https://golang.org