/*
* oxAuth is available under the MIT License (2008). See http://opensource.org/licenses/MIT for full text.
*
* Copyright (c) 2014, Gluu
*/
package org.xdi.oxauth.model.crypto.signature;
import org.codehaus.jettison.json.JSONException;
import org.codehaus.jettison.json.JSONObject;
import org.xdi.oxauth.model.crypto.PrivateKey;
import org.xdi.oxauth.model.util.Base64Util;
import org.xdi.oxauth.model.util.StringUtils;
import java.math.BigInteger;
import static org.xdi.oxauth.model.jwk.JWKParameter.*;
/**
* The Private Key for the Elliptic Curve Digital Signature Algorithm (ECDSA)
*
* @author Javier Rojas Blum
* @version July 31, 2016
*/
public class ECDSAPrivateKey extends PrivateKey {
private BigInteger d;
public ECDSAPrivateKey(BigInteger d) {
this.d = d;
}
public ECDSAPrivateKey(String d) {
this.d = new BigInteger(1, Base64Util.base64urldecode(d));
}
public BigInteger getD() {
return d;
}
public void setD(BigInteger d) {
this.d = d;
}
@Override
public JSONObject toJSONObject() throws JSONException {
JSONObject jsonObject = new JSONObject();
jsonObject.put(MODULUS, JSONObject.NULL);
jsonObject.put(EXPONENT, JSONObject.NULL);
jsonObject.put(D, Base64Util.base64urlencodeUnsignedBigInt(d));
return jsonObject;
}
@Override
public String toString() {
try {
return toJSONObject().toString(4);
} catch (JSONException e) {
return StringUtils.EMPTY_STRING;
} catch (Exception e) {
return StringUtils.EMPTY_STRING;
}
}
}