trunc = this.sealClientHandle.doFinal(trunc);
                if (log.isDebugEnabled()) {
                    log.debug("Encrypted " + Hexdump.toHexString(trunc));
                }
            } catch (final GeneralSecurityException e) {
                throw new CIFSException("Failed to encrypt MIC", e);
            }
        }

        final byte[] sig = new byte[16];
        SMBUtil.writeInt4(1, sig, 0); // version

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"context"
	"io"
	"net/http"
	"time"

	"github.com/minio/madmin-go/v3"
	"github.com/minio/minio-go/v7/pkg/encrypt"
	"github.com/minio/minio-go/v7/pkg/tags"
	"github.com/minio/minio/internal/hash"

	"github.com/minio/minio/internal/bucket/replication"
	xioutil "github.com/minio/minio/internal/ioutil"
)

OAuth 1というものもありましたが、これはOAuth2とは全く異なり、通信をどのように暗号化するかという仕様が直接的に含まれており、より複雑なものとなっています。

現在ではあまり普及していませんし、使われてもいません。

OAuth2は、通信を暗号化する方法を指定せず、アプリケーションがHTTPSで提供されることを想定しています。

/// tip | 豆知識

**デプロイ**のセクションでは、TraefikとLet's Encryptを使用して、無料でHTTPSを設定する方法が紹介されています。

///

## OpenID Connect { #openid-connect }

OpenID Connectは、**OAuth2**をベースにした別の仕様です。

これはOAuth2を拡張したもので、OAuth2ではやや曖昧だった部分を明確にし、より相互運用性を高めようとしたものです。

1a) Send encrypted data key and master key ID to KMS.
1b) Receive decrypted data key.
2)  Decrypt encrypted object key with the KEK derived from the data key.
3a) Receive new plain data key from the KMS using the master key ID of the server config.
3b) Receive encrypted form of the data key from the KMS.
4)  Derive a new KEK from the new data key and re-encrypt the OEK with it.

	}

	// Note: Local variables with names ek, oek, etc are named inline with
	// acronyms defined here -
	// https://github.com/minio/minio/blob/master/docs/security/README.md#acronyms

	// Encrypt json encoded tier configurations
	metadata := make(map[string]string)
	encBr, oek, err := newEncryptReader(context.Background(), hr, crypto.S3, "", nil, minioMetaBucket, tierConfigPath, metadata, kms.Context{})
	if err != nil {

//   - The object is a SSE-KMS or SSE-C encrypted single-
//     part object. In this case, Format returns the last
//     16 bytes of the encrypted ETag which will be a random
//     value.
//   - The object is a SSE-S3 encrypted single-part object.
//     In this case, the caller has to decrypt the ETag first
//     before calling Format.
//     S3 clients expect that the ETag of an SSE-S3 encrypted

	EnvKESServerCA       = "MINIO_KMS_KES_CAPATH"       // Path to file/directory containing CA certificates to verify the KES server certificate
	EnvKESClientPassword = "MINIO_KMS_KES_KEY_PASSWORD" // Optional password to decrypt an encrypt TLS private key
)

// Environment variables for static KMS key.
const (

	echo "BUG: object test-bucket/custpartsize not replicated"
	exit_1
fi

# Stat the objects from source site
echo "Stat minio1/test-bucket/encrypted"
./mc stat --no-list minio1/test-bucket/encrypted --insecure --json
stat_out1=$(./mc stat --no-list minio1/test-bucket/encrypted --insecure --json)
src_obj1_algo=$(echo "${stat_out1}" | jq '.metadata."X-Amz-Server-Side-Encryption"')

	_, err = sio.Encrypt(outbuf, bytes.NewBuffer(input), sio.Config{Key: objectKey[:], MinVersion: sio.Version20})
	if err != nil {
		return output, metabytes, err
	}
	metabytes, err = json.Marshal(metadata)
	if err != nil {
		return output, metabytes, err
	}
	return outbuf.Bytes(), metabytes, nil
}

// decrypt bucket metadata if kms is configured.

	exit_1
fi

echo "Set default encryption on "

# test if checksum header is replicated for encrypted objects
# Enable SSE KMS for test-bucket bucket
./mc encrypt set sse-kms minio-default-key minio1/test-bucket --insecure

# Load objects to source site with checksum header
echo "Loading objects to source MinIO instance"