63 lines
1.3 KiB
Go
63 lines
1.3 KiB
Go
// Copyright © 2016 Abcum Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cryp
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import (
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"crypto/aes"
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"crypto/cipher"
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"github.com/abcum/surreal/util/rand"
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)
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func Encrypt(key []byte, src []byte) (dst []byte, err error) {
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// Initiate AES256
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block, err := aes.NewCipher(key)
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if err != nil {
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return
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}
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// Initiate cipher
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cipher, err := cipher.NewGCM(block)
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if err != nil {
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return
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}
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nonce := rand.New(12)
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dst = cipher.Seal(nil, nonce, src, nil)
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dst = append(nonce[:], dst[:]...)
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return
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}
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func Decrypt(key []byte, src []byte) (dst []byte, err error) {
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// Initiate AES256
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block, err := aes.NewCipher(key)
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if err != nil {
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return
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}
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// Initiate cipher
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cipher, err := cipher.NewGCM(block)
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if err != nil {
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return
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}
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return cipher.Open(nil, src[:12], src[12:], nil)
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}
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