open-consul/vendor/github.com/stretchr/objx/security.go

package objx

import (
	"crypto/sha1"
	"encoding/hex"
)

// HashWithKey hashes the specified string using the security key
func HashWithKey(data, key string) string {
	d := sha1.Sum([]byte(data + ":" + key))
	return hex.EncodeToString(d[:])
}