restic/vendor/github.com/minio/minio-go/examples/s3/get-encrypted-object.go

89 lines
2.4 KiB
Go

// +build ignore
/*
* 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 main
import (
"io"
"log"
"os"
"github.com/minio/minio-go"
"github.com/minio/minio-go/pkg/encrypt"
)
func main() {
// Note: YOUR-ACCESSKEYID, YOUR-SECRETACCESSKEY, my-bucketname, my-objectname and
// my-testfile are dummy values, please replace them with original values.
// Requests are always secure (HTTPS) by default. Set secure=false to enable insecure (HTTP) access.
// This boolean value is the last argument for New().
// New returns an Amazon S3 compatible client object. API compatibility (v2 or v4) is automatically
// determined based on the Endpoint value.
s3Client, err := minio.New("s3.amazonaws.com", "YOUR-ACCESS-KEY-HERE", "YOUR-SECRET-KEY-HERE", true)
if err != nil {
log.Fatalln(err)
}
//// Build an asymmetric key from private and public files
//
// privateKey, err := ioutil.ReadFile("private.key")
// if err != nil {
// t.Fatal(err)
// }
//
// publicKey, err := ioutil.ReadFile("public.key")
// if err != nil {
// t.Fatal(err)
// }
//
// asymmetricKey, err := NewAsymmetricKey(privateKey, publicKey)
// if err != nil {
// t.Fatal(err)
// }
////
// Build a symmetric key
symmetricKey := encrypt.NewSymmetricKey([]byte("my-secret-key-00"))
// Build encryption materials which will encrypt uploaded data
cbcMaterials, err := encrypt.NewCBCSecureMaterials(symmetricKey)
if err != nil {
log.Fatalln(err)
}
// Get a deciphered data from the server, deciphering is assured by cbcMaterials
reader, err := s3Client.GetEncryptedObject("my-bucketname", "my-objectname", cbcMaterials)
if err != nil {
log.Fatalln(err)
}
defer reader.Close()
// Local file which holds plain data
localFile, err := os.Create("my-testfile")
if err != nil {
log.Fatalln(err)
}
defer localFile.Close()
if _, err := io.Copy(localFile, reader); err != nil {
log.Fatalln(err)
}
}