/**
 * Represents encrypted Kerberos ticket data.
 */
public class KerberosEncData {

    private String userRealm;
    private String userPrincipalName;
    private ArrayList<InetAddress> userAddresses;
    private List<KerberosAuthData> userAuthorizations;

    /**
     * Constructs KerberosEncData from encrypted token bytes.
     *
     * @param token the encrypted Kerberos token

     * @param plaintext the credentials to encrypt
     * @return base64 encoded encrypted credentials
     * @throws GeneralSecurityException if encryption fails
     */
    public String encryptToString(char[] plaintext) throws GeneralSecurityException {
        byte[] encrypted = encryptCredentials(plaintext);
        return Base64.getEncoder().encodeToString(encrypted);
    }

    /**
     * Decrypt credentials from a base64 string

        }

        return new DERSequence(v).getEncoded();
    }

    /**
     * Creates a byte array representing the decrypted data part of a Kerberos ticket.
     * @param userName User principal name
     * @param userRealm User realm
     * @return A byte array representing the decrypted data
     * @throws IOException on encoding error
     */

// It will be decrypted if needed.
func (o *ObjectInfo) ArchiveInfo(h http.Header) []byte {
	if len(o.UserDefined) == 0 {
		return nil
	}
	z, ok := o.UserDefined[archiveInfoMetadataKey]
	if !ok {
		return nil
	}
	data := []byte(z)
	if v, ok := o.UserDefined[archiveTypeMetadataKey]; ok && v == archiveTypeEnc {
		decrypted, err := o.metadataDecrypter(h)(archiveTypeEnc, data)

            // Build final encrypted message
            final byte[] result = new byte[Smb2TransformHeader.TRANSFORM_HEADER_SIZE + encResult.ciphertext.length];
            transformHeader.encode(result, 0);
            System.arraycopy(encResult.ciphertext, 0, result, Smb2TransformHeader.TRANSFORM_HEADER_SIZE, encResult.ciphertext.length);

            // Track encrypted bytes for key rotation - lock-free atomic operation

//
// All objects are encrypted with an unique and randomly generated 'ObjectKey'.
// The ObjectKey itself is never stored in plaintext. Instead it is only stored
// in a sealed from. The sealed 'ObjectKey' is created by encrypting the 'ObjectKey'
// with an unique key-encryption-key. Given the correct key-encryption-key the
// sealed 'ObjectKey' can be unsealed and the object can be decrypted.
//
// ## SSE-C
//

		b, err := io.ReadAll(gr)
		gr.Close()
		if err != nil {
			return nil, ObjectInfo{}, err
		}
		if size > len(b) {
			size = len(b)
		}

		// Calculate the object real size if encrypted
		if _, ok := crypto.IsEncrypted(gr.ObjInfo.UserDefined); ok {
			objSize, err = gr.ObjInfo.DecryptedSize()
			if err != nil {
				return nil, ObjectInfo{}, err
			}
		} else {
			objSize = gr.ObjInfo.Size
		}

			return
		}
		writeSuccessResponseJSON(w, resp)
		return
	}

	// 3. Compare generated key with decrypted key
	if subtle.ConstantTimeCompare(key.Plaintext, decryptedKey) != 1 {
		response.DecryptionErr = "The generated and the decrypted data key do not match"
		resp, err := json.Marshal(response)
		if err != nil {

			writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
			return
		}
	}

	origETag := objInfo.ETag
	if kind, encrypted := crypto.IsEncrypted(objInfo.UserDefined); encrypted {
		switch kind {
		case crypto.S3:
			w.Header().Set(xhttp.AmzServerSideEncryption, xhttp.AmzEncryptionAES)

	}

	return x509Certs, nil
}

// LoadX509KeyPair - load an X509 key pair (private key , certificate)
// from the provided paths. The private key may be encrypted and is
// decrypted using the ENV_VAR: MINIO_CERT_PASSWD.
func LoadX509KeyPair(certFile, keyFile string) (tls.Certificate, error) {
	certPEMBlock, err := os.ReadFile(certFile)
	if err != nil {