88 lines
2.8 KiB
Go
88 lines
2.8 KiB
Go
|
// +build ignore
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Minio Go Library for Amazon S3 Compatible Cloud Storage (C) 2017 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 (
|
||
|
|
"bytes"
|
||
|
|
"crypto/md5"
|
||
|
|
"encoding/base64"
|
||
|
|
"io/ioutil"
|
||
|
|
"log"
|
||
|
|
"net/http"
|
||
|
|
|
||
|
|
minio "github.com/minio/minio-go"
|
||
|
|
)
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
// Note: YOUR-ACCESSKEYID, YOUR-SECRETACCESSKEY, my-testfile, my-bucketname and
|
||
|
|
// my-objectname are dummy values, please replace them with original values.
|
||
|
|
|
||
|
|
// New returns an Amazon S3 compatible client object. API compatibility (v2 or v4) is automatically
|
||
|
|
// determined based on the Endpoint value.
|
||
|
|
minioClient, err := minio.New("s3.amazonaws.com", "YOUR-ACCESSKEYID", "YOUR-SECRETACCESSKEY", true)
|
||
|
|
if err != nil {
|
||
|
|
log.Fatalln(err)
|
||
|
|
}
|
||
|
|
|
||
|
|
content := bytes.NewReader([]byte("Hello again"))
|
||
|
|
key := []byte("32byteslongsecretkeymustprovided")
|
||
|
|
h := md5.New()
|
||
|
|
h.Write(key)
|
||
|
|
encryptionKey := base64.StdEncoding.EncodeToString(key)
|
||
|
|
encryptionKeyMD5 := base64.StdEncoding.EncodeToString(h.Sum(nil))
|
||
|
|
|
||
|
|
// Amazon S3 does not store the encryption key you provide.
|
||
|
|
// Instead S3 stores a randomly salted HMAC value of the
|
||
|
|
// encryption key in order to validate future requests.
|
||
|
|
// The salted HMAC value cannot be used to derive the value
|
||
|
|
// of the encryption key or to decrypt the contents of the
|
||
|
|
// encrypted object. That means, if you lose the encryption
|
||
|
|
// key, you lose the object.
|
||
|
|
var metadata = map[string][]string{
|
||
|
|
"x-amz-server-side-encryption-customer-algorithm": []string{"AES256"},
|
||
|
|
"x-amz-server-side-encryption-customer-key": []string{encryptionKey},
|
||
|
|
"x-amz-server-side-encryption-customer-key-MD5": []string{encryptionKeyMD5},
|
||
|
|
}
|
||
|
|
|
||
|
|
// minioClient.TraceOn(os.Stderr) // Enable to debug.
|
||
|
|
_, err = minioClient.PutObjectWithMetadata("mybucket", "my-encrypted-object.txt", content, metadata, nil)
|
||
|
|
if err != nil {
|
||
|
|
log.Fatalln(err)
|
||
|
|
}
|
||
|
|
|
||
|
|
var reqHeaders = minio.RequestHeaders{Header: http.Header{}}
|
||
|
|
for k, v := range metadata {
|
||
|
|
reqHeaders.Set(k, v[0])
|
||
|
|
}
|
||
|
|
coreClient := minio.Core{minioClient}
|
||
|
|
reader, _, err := coreClient.GetObject("mybucket", "my-encrypted-object.txt", reqHeaders)
|
||
|
|
if err != nil {
|
||
|
|
log.Fatalln(err)
|
||
|
|
}
|
||
|
|
defer reader.Close()
|
||
|
|
|
||
|
|
decBytes, err := ioutil.ReadAll(reader)
|
||
|
|
if err != nil {
|
||
|
|
log.Fatalln(err)
|
||
|
|
}
|
||
|
|
if !bytes.Equal(decBytes, []byte("Hello again")) {
|
||
|
|
log.Fatalln("Expected \"Hello, world\", got %s", string(decBytes))
|
||
|
|
}
|
||
|
|
}
|