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// Copyright 2017 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package crypto
import (
"crypto/md5"
"crypto/sha1"
"crypto/sha256"
"encoding/hex"
"github.com/spf13/cast"
)
// New returns a new instance of the crypto-namespaced template functions.
func New() *Namespace {
return &Namespace{}
}
// Namespace provides template functions for the "crypto" namespace.
type Namespace struct{}
// MD5 hashes the given input and returns its MD5 checksum.
func (ns *Namespace) MD5(in interface{}) (string, error) {
conv, err := cast.ToStringE(in)
if err != nil {
return "", err
}
hash := md5.Sum([]byte(conv))
return hex.EncodeToString(hash[:]), nil
}
// SHA1 hashes the given input and returns its SHA1 checksum.
func (ns *Namespace) SHA1(in interface{}) (string, error) {
conv, err := cast.ToStringE(in)
if err != nil {
return "", err
}
hash := sha1.Sum([]byte(conv))
return hex.EncodeToString(hash[:]), nil
}
// SHA256 hashes the given input and returns its SHA256 checksum.
func (ns *Namespace) SHA256(in interface{}) (string, error) {
conv, err := cast.ToStringE(in)
if err != nil {
return "", err
}
hash := sha256.Sum256([]byte(conv))
return hex.EncodeToString(hash[:]), nil
}
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