}
public byte[] getEncoded()
{
ASN1Encodable params;
SubjectPublicKeyInfo info;
if (algorithm.equals("ECGOST3410"))
{
if (gostParams != null)
{
params = gostParams;
}
else
{
if (ecSpec instanceof ECNamedCurveSpec)
{
params = new GOST3410PublicKeyAlgParameters(
ECGOST3410NamedCurves.getOID(((ECNamedCurveSpec)ecSpec).getName()),
CryptoProObjectIdentifiers.gostR3411_94_CryptoProParamSet);
}
else
{ // strictly speaking this may not be applicable...
ECCurve curve = EC5Util.convertCurve(ecSpec.getCurve());
X9ECParameters ecP = new X9ECParameters(
curve,
EC5Util.convertPoint(curve, ecSpec.getGenerator(), withCompression),
ecSpec.getOrder(),
BigInteger.valueOf(ecSpec.getCofactor()),
ecSpec.getCurve().getSeed());
params = new X962Parameters(ecP);
}
}
BigInteger bX = this.q.getX().toBigInteger();
BigInteger bY = this.q.getY().toBigInteger();
byte[] encKey = new byte[64];
extractBytes(encKey, 0, bX);
extractBytes(encKey, 32, bY);
try
{
info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(CryptoProObjectIdentifiers.gostR3410_2001, params), new DEROctetString(encKey));
}
catch (IOException e)
{
return null;
}
}
else
{
if (ecSpec instanceof ECNamedCurveSpec)
{
ASN1ObjectIdentifier curveOid = ECUtil.getNamedCurveOid(((ECNamedCurveSpec)ecSpec).getName());
if (curveOid == null)
{
curveOid = new ASN1ObjectIdentifier(((ECNamedCurveSpec)ecSpec).getName());
}
params = new X962Parameters(curveOid);
}
else if (ecSpec == null)
{
params = new X962Parameters(DERNull.INSTANCE);
}
else
{
ECCurve curve = EC5Util.convertCurve(ecSpec.getCurve());
X9ECParameters ecP = new X9ECParameters(
curve,
EC5Util.convertPoint(curve, ecSpec.getGenerator(), withCompression),
ecSpec.getOrder(),
BigInteger.valueOf(ecSpec.getCofactor()),
ecSpec.getCurve().getSeed());
params = new X962Parameters(ecP);
}
ECCurve curve = this.engineGetQ().getCurve();
ASN1OctetString p = (ASN1OctetString)
new X9ECPoint(curve.createPoint(this.getQ().getX().toBigInteger(), this.getQ().getY().toBigInteger(), withCompression)).toASN1Primitive();
info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params), p.getOctets());
}
return KeyUtil.getEncodedSubjectPublicKeyInfo(info);
}