Hash password with salt

hash_password_salt.go

import (
    "crypto/rand"
    "fmt"
    "io"
    "log"

    "code.google.com/p/go.crypto/scrypt"
)

const (
    PW_SALT_BYTES = 32
    PW_HASH_BYTES = 64

    password = "hello"
)

func main() {
    salt := make([]byte, PW_SALT_BYTES)
    _, err := io.ReadFull(rand.Reader, salt)
    if err != nil {
        log.Fatal(err)
    }

    hash, err := scrypt.Key([]byte(password), salt, 1<<14, 8, 1, PW_HASH_BYTES)
    if err != nil {
        log.Fatal(err)
    }

    fmt.Printf("%x\n", hash)
}