### SSE-C Encryption

MinIO does not support SSE-C encrypted objects on replicated buckets, any application uploading SSE-C encrypted objects will be rejected with an error on replicated buckets.

#### Rationale

    /**
     * Security mode flags.
     */
    public int securityMode;
    /**
     * Security settings for the session.
     */
    public int security;
    /**
     * Whether the server requires encrypted passwords.
     */
    public boolean encryptedPasswords;
    /**
     * Whether message signing is enabled.
     */
    public boolean signaturesEnabled;
    /**
     * Whether message signing is required.

- Configurable: Min/max versions can be set via configuration properties

### SMB3 Encryption Support
- **SMB2 Transform Header**: Encrypted message wrapping
- **AES-CCM/GCM Support**: Both AES-128-CCM (SMB 3.0/3.0.2) and AES-128-GCM (SMB 3.1.1) cipher suites
- **Encryption Context**: Per-session encryption state management

# specific language governing permissions and limitations
# under the License.

# -----------------------------------------------------------------------------
# Apache Maven Encrypt Script
#
# Environment Variable Prerequisites
#
#   JAVA_HOME           (Optional) Points to a Java installation.
#   MAVEN_OPTS          (Optional) Java runtime options used when Maven is executed.

# specific language governing permissions and limitations
# under the License.

# -----------------------------------------------------------------------------
# Apache Maven Encrypt Script
#
# Environment Variable Prerequisites
#
#   JAVA_HOME           (Optional) Points to a Java installation.
#   MAVEN_OPTS          (Optional) Java runtime options used when Maven is executed.

It is not very popular or used nowadays.

OAuth2 doesn't specify how to encrypt the communication, it expects you to have your application served with HTTPS.

/// tip

In the section about **deployment** you will see how to set up HTTPS for free, using Traefik and Let's Encrypt.

///

## OpenID Connect { #openid-connect }

* Traefik（証明書の更新も対応）
* Caddy (証明書の更新も対応)
* Nginx
* HAProxy


## Let's Encrypt

Let's Encrypt以前は、これらの**HTTPS証明書**は信頼できる第三者によって販売されていました。

これらの証明書を取得するための手続きは面倒で、かなりの書類を必要とし、証明書はかなり高価なものでした。

しかしその後、**<a href="https://letsencrypt.org/" class="external-link" target="_blank">Let's Encrypt</a>** が作られました。

     * should carry a digital signature (message integrity).
     */
    int NTLMSSP_NEGOTIATE_SIGN = 0x00000010;

    /**
     * Specifies that communication across the authenticated channel
     * should be encrypted (message confidentiality).
     */
    int NTLMSSP_NEGOTIATE_SEAL = 0x00000020;

    /**
     * Indicates datagram authentication.
     */
    int NTLMSSP_NEGOTIATE_DATAGRAM_STYLE = 0x00000040;

    /**

		ACB_PWNOEXP                = 0x00000200, /* 1 = User password does not expire */
		ACB_AUTOLOCK               = 0x00000400, /* 1 = Account auto locked */
		ACB_ENC_TXT_PWD_ALLOWED    = 0x00000800, /* 1 = Encryped text password is allowed */
		ACB_SMARTCARD_REQUIRED     = 0x00001000, /* 1 = Smart Card required */
		ACB_TRUSTED_FOR_DELEGATION = 0x00002000, /* 1 = Trusted for Delegation */

	// The total count of all versions of this object
	NumVersions int
	//  The modtime of the successor object version if any
	SuccessorModTime time.Time

	// Checksums added on upload.
	// Encoded, maybe encrypted.
	Checksum []byte

	// Inlined
	Inlined bool

	DataBlocks   int
	ParityBlocks int
}

// ExpiresStr returns a stringified version of Expires header in http.TimeFormat