com.cedarsoft.crypt.Signature.kt Maven / Gradle / Ivy

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/**
 * Copyright (C) cedarsoft GmbH.
 *
 * Licensed under the GNU General Public License version 3 (the "License")
 * with Classpath Exception; you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 * http://www.cedarsoft.org/gpl3ce
 * (GPL 3 with Classpath Exception)
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 3 only, as
 * published by the Free Software Foundation. cedarsoft GmbH designates this
 * particular file as subject to the "Classpath" exception as provided
 * by cedarsoft GmbH 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 3 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
 * 3 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 cedarsoft GmbH, 72810 Gomaringen, Germany,
 * or visit www.cedarsoft.com if you need additional information or
 * have any questions.
 */

package com.cedarsoft.crypt

import java.util.Arrays

/**
 * Represents a signature
 *
 * @author Johannes Schneider ([[email protected]](mailto:[email protected]))
 */
class Signature(bytes: ByteArray) {

  private val bytes: ByteArray = bytes.clone()

  /**
   * Returns the byte array representing the signature
   *
   * @return the byte array
   */
  fun getBytes(): ByteArray {
    return bytes.clone()
  }

  override fun equals(other: Any?): Boolean {
    if (this === other) return true
    if (other !is Signature) return false

    val signature = other as Signature?

    return Arrays.equals(bytes, signature!!.bytes)
  }

  override fun hashCode(): Int {
    return Arrays.hashCode(bytes)
  }

  companion object {
    /**
     * Null signature
     */
    @JvmStatic
    val NULL = Signature(ByteArray(0))
  }
}