package hash

import (
	"crypto/sha1"
	"crypto/sha256"
	"crypto/sha512"
)

// SHA1 sha1 hash
func SHA1(bs []byte) (hs []byte, err error) {
	h := sha1.New()
	_, err = h.Write(bs)
	if err != nil {
		return
	}

	hs = h.Sum(nil)
	return
}

// SHA256 sha256 hash
func SHA256(bs []byte) (hs []byte, err error) {
	h := sha256.New()
	_, err = h.Write(bs)
	if err != nil {
		return
	}

	hs = h.Sum(nil)
	return
}

// SHA512 sha512 hash
func SHA512(bs []byte) (hs []byte, err error) {
	h := sha512.New()
	_, err = h.Write(bs)
	if err != nil {
		return
	}

	hs = h.Sum(nil)
	return
}