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cloudkmscrypto.go
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cloudkmscrypto.go
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// Copyright 2024 The Bucketeer Authors.
//
// 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 (
"context"
cloudkms "cloud.google.com/go/kms/apiv1"
kms "cloud.google.com/go/kms/apiv1"
kmsproto "google.golang.org/genproto/googleapis/cloud/kms/v1"
)
type cloudKMSCrypto struct {
client *cloudkms.KeyManagementClient
keyName string
}
func NewCloudKMSCrypto(
ctx context.Context,
keyName string,
) (EncrypterDecrypter, error) {
kmsClient, err := kms.NewKeyManagementClient(ctx)
if err != nil {
return nil, err
}
return cloudKMSCrypto{
client: kmsClient,
keyName: keyName,
}, nil
}
func (c cloudKMSCrypto) Encrypt(ctx context.Context, data []byte) ([]byte, error) {
resp, err := c.client.Encrypt(ctx, &kmsproto.EncryptRequest{
Name: c.keyName,
Plaintext: data,
})
if err != nil {
return nil, err
}
return resp.Ciphertext, nil
}
func (c cloudKMSCrypto) Decrypt(ctx context.Context, data []byte) ([]byte, error) {
resp, err := c.client.Decrypt(ctx, &kmsproto.DecryptRequest{
Name: c.keyName,
Ciphertext: data,
})
if err != nil {
return nil, err
}
return resp.Plaintext, nil
}