golang: compute PBKDF2 of a password

 package main

import (

  "bytes"

  "crypto/rand"

  "crypto/sha256"

  "encoding/hex"

  "fmt"

  "golang.org/x/crypto/pbkdf2"

  "golang.org/x/term"

  "log"

  "strings"

  "syscall"

)

func main() {

  fmt.Print("Input password: ")

  password, err := term.ReadPassword(int(syscall.Stdin))

  if err != nil {

    log.Fatal(err)

  }

  fmt.Print("\nConfirm password: ")

  confirmPw, err := term.ReadPassword(int(syscall.Stdin))

 

  if err != nil {

    log.Fatal(err)

  }

 

  if !bytes.Equal(password, ConfirmPw) {

    log.Fatal("Error: inputs mismatch")

  }

  salt := make([]byte, 32)

  _, err = rand.Read(salt)

  if err != nil {

    log.Fatal(err)

  }

  pwPbkdf2 := pbkdf2.Key(password, salt, 10240, 32, sha256.New)

  fmt.Println("\nSalt: ", strings.ToUpper(hex.EncodeToString(salt))

  fmt.Println("PBKDF2: ", strings.ToUpper(hex.EncodeToString(pwPbkdf2))

}