mirror of
https://github.com/octoleo/restic.git
synced 2024-11-06 13:27:58 +00:00
40 lines
1.1 KiB
Go
40 lines
1.1 KiB
Go
/*
|
|
* Minio Go Library for Amazon S3 Compatible Cloud Storage (C) 2015 Minio, Inc.
|
|
*
|
|
* 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 s3signer
|
|
|
|
import (
|
|
"crypto/hmac"
|
|
"crypto/sha256"
|
|
)
|
|
|
|
// unsignedPayload - value to be set to X-Amz-Content-Sha256 header when
|
|
const unsignedPayload = "UNSIGNED-PAYLOAD"
|
|
|
|
// sum256 calculate sha256 sum for an input byte array.
|
|
func sum256(data []byte) []byte {
|
|
hash := sha256.New()
|
|
hash.Write(data)
|
|
return hash.Sum(nil)
|
|
}
|
|
|
|
// sumHMAC calculate hmac between two input byte array.
|
|
func sumHMAC(key []byte, data []byte) []byte {
|
|
hash := hmac.New(sha256.New, key)
|
|
hash.Write(data)
|
|
return hash.Sum(nil)
|
|
}
|