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gurux.dlms.java package is used to communicate with DLMS devices.
//
// --------------------------------------------------------------------------
// Gurux Ltd
//
//
//
// Filename: $HeadURL$
//
// Version: $Revision$,
// $Date$
// $Author$
//
// Copyright (c) Gurux Ltd
//
//---------------------------------------------------------------------------
//
// DESCRIPTION
//
// This file is a part of Gurux Device Framework.
//
// Gurux Device Framework is Open Source software; you can redistribute it
// and/or modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; version 2 of the License.
// Gurux Device Framework 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 for more details.
//
// More information of Gurux products: https://www.gurux.org
//
// This code is licensed under the GNU General Public License v2.
// Full text may be retrieved at http://www.gnu.org/licenses/gpl-2.0.txt
//---------------------------------------------------------------------------
package gurux.dlms.asn;
import gurux.dlms.internal.GXCommon;
/**
* ASN1 Public key.
*/
public class GXAsn1PublicKey {
/**
* Public key.
*/
private byte[] value;
private void init(final byte[] key) {
if (key == null || key.length != 270) {
throw new IllegalArgumentException("data");
}
value = new byte[key.length];
System.arraycopy(key, 0, value, 0, key.length);
}
/**
* Constructor.
*/
public GXAsn1PublicKey() {
}
/**
* Constructor for RSA Public Key (PKCS#1). This is read from PEM file.
*
* @param data
* (PKCS#1) Public key.
*/
public GXAsn1PublicKey(final GXAsn1BitString data) {
if (data == null) {
throw new IllegalArgumentException("key");
}
GXAsn1Sequence seq =
(GXAsn1Sequence) GXAsn1Converter.fromByteArray(data.getValue());
init(GXAsn1Converter
.toByteArray(new Object[] { seq.get(0), seq.get(1) }));
}
/**
* Constructor
*
* @param key
* Public key.
*/
public GXAsn1PublicKey(final byte[] key) {
init(key);
}
/**
* @return Public key as byte array.
*/
public final byte[] getValue() {
return value;
}
@Override
public final String toString() {
if (value == null) {
return "";
}
return GXCommon.toHex(value);
}
}