// SMSLib for Java v3
// A Java API library for sending and receiving SMS via a GSM modem
// or other supported gateways.
// Web Site: http://www.smslib.org
//
// Copyright (C) 2002-2012, Thanasis Delenikas, Athens/GREECE.
// SMSLib is distributed under the terms of the Apache License version 2.0
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package org.smslib.crypto;

/**
 * Abstract class representing an encryption key.
 */
public abstract class AKey
{
	public static String asHex(byte buf[])
	{
		StringBuffer strbuf = new StringBuffer(buf.length * 2);
		int i;
		for (i = 0; i < buf.length; i++)
		{
			if ((buf[i] & 0xff) < 0x10) strbuf.append("0");
			strbuf.append(Long.toString(buf[i] & 0xff, 16));
		}
		return strbuf.toString();
	}

	public static String asString(byte[] bytes)
	{
		StringBuffer buffer = new StringBuffer();
		for (int i = 0; i < bytes.length; i++)
			buffer.append((char) bytes[i]);
		return buffer.toString();
	}
}
