gistfile1.go

package main

import (
        "crypto/md5"
	"crypto/sha1"
	"encoding/hex"
	"fmt"
	"io"
)

type hash struct {
	value string
}

func Digest(str string) *hash {
	return &hash{str}
}

func (ha *hash) md5() string {
	h := md5.New()
	io.WriteString(h, ha.value)
	return hex.EncodeToString(h.Sum(nil))
}


func (ha *hash) sha1() string {
	h := sha1.New()
	io.WriteString(h, ha.value)
	return hex.EncodeToString(h.Sum(nil))
}

func main() {
	fmt.Println(Digest("test").md5())
	fmt.Println(Digest("test").sha1())
}