Find file
Fetching contributors…
Cannot retrieve contributors at this time
27 lines (23 sloc) 654 Bytes
package revel
import (
// Sign a given string with the app-configured secret key.
// If no secret key is set, returns the empty string.
// Return the signature in base64 (URLEncoding).
func Sign(message string) string {
if len(secretKey) == 0 {
return ""
mac := hmac.New(sha1.New, secretKey)
io.WriteString(mac, message)
return hex.EncodeToString(mac.Sum(nil))
// Verify returns true if the given signature is correct for the given message.
// e.g. it matches what we generate with Sign()
func Verify(message, sig string) bool {
return hmac.Equal([]byte(sig), []byte(Sign(message)))