/*

 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 */

package sun.security.pkcs11.wrapper;

/**

 * This class represents the necessary parameters required by

 * the CKM_AES_GCM mechanism as defined in CK_GCM_PARAMS structure.<p>

 * <B>PKCS#11 structure:</B>

 * <PRE>

 * typedef struct CK_GCM_PARAMS {

 *    CK_BYTE_PTR       pIv;

 *    CK_ULONG          ulIvLen;

 *    CK_BYTE_PTR       pAAD;

 *    CK_ULONG          ulAADLen;

 *    CK_ULONG          ulTagBits;

 * } CK_GCM_PARAMS;

 * </PRE>

 *

 * @since   10

 */

public class CK_GCM_PARAMS {

    private final byte[] iv;

    private final byte[] aad;

    private final long tagBits;

    public CK_GCM_PARAMS(int tagLenInBits, byte[] iv, byte[] aad) {

        this.iv = iv;

        this.aad = aad;

        this.tagBits = tagLenInBits;

    }

    public String toString() {

        StringBuilder sb = new StringBuilder();

        sb.append(Constants.INDENT);

        sb.append("iv: ");

        sb.append(Functions.toHexString(iv));

        sb.append(Constants.NEWLINE);

        sb.append(Constants.INDENT);

        sb.append("aad: ");

        sb.append(Functions.toHexString(aad));

        sb.append(Constants.NEWLINE);

        sb.append(Constants.INDENT);

        sb.append("tagLen(in bits): ");

        sb.append(tagBits);

        return sb.toString();

    }

}