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package org.spongycastle.asn1.ua;
import org.spongycastle.asn1.ASN1EncodableVector;
import org.spongycastle.asn1.ASN1Object;
import org.spongycastle.asn1.ASN1ObjectIdentifier;
import org.spongycastle.asn1.ASN1OctetString;
import org.spongycastle.asn1.ASN1Primitive;
import org.spongycastle.asn1.ASN1Sequence;
import org.spongycastle.asn1.DEROctetString;
import org.spongycastle.asn1.DERSequence;
public class DSTU4145Params
extends ASN1Object
{
private static final byte DEFAULT_DKE[] = {
(byte)0xa9, (byte)0xd6, (byte)0xeb, 0x45, (byte)0xf1, 0x3c, 0x70, (byte)0x82,
(byte)0x80, (byte)0xc4, (byte)0x96, 0x7b, 0x23, 0x1f, 0x5e, (byte)0xad,
(byte)0xf6, 0x58, (byte)0xeb, (byte)0xa4, (byte)0xc0, 0x37, 0x29, 0x1d,
0x38, (byte)0xd9, 0x6b, (byte)0xf0, 0x25, (byte)0xca, 0x4e, 0x17,
(byte)0xf8, (byte)0xe9, 0x72, 0x0d, (byte)0xc6, 0x15, (byte)0xb4, 0x3a,
0x28, (byte)0x97, 0x5f, 0x0b, (byte)0xc1, (byte)0xde, (byte)0xa3, 0x64,
0x38, (byte)0xb5, 0x64, (byte)0xea, 0x2c, 0x17, (byte)0x9f, (byte)0xd0,
0x12, 0x3e, 0x6d, (byte)0xb8, (byte)0xfa, (byte)0xc5, 0x79, 0x04};
private ASN1ObjectIdentifier namedCurve;
private DSTU4145ECBinary ecbinary;
private byte[] dke = DEFAULT_DKE;
public DSTU4145Params(ASN1ObjectIdentifier namedCurve)
{
this.namedCurve = namedCurve;
}
public DSTU4145Params(DSTU4145ECBinary ecbinary)
{
this.ecbinary = ecbinary;
}
public boolean isNamedCurve()
{
return namedCurve != null;
}
public DSTU4145ECBinary getECBinary()
{
return ecbinary;
}
public byte[] getDKE()
{
return dke;
}
public static byte[] getDefaultDKE()
{
return DEFAULT_DKE;
}
public ASN1ObjectIdentifier getNamedCurve()
{
return namedCurve;
}
public static DSTU4145Params getInstance(Object obj)
{
if (obj instanceof DSTU4145Params)
{
return (DSTU4145Params)obj;
}
if (obj != null)
{
ASN1Sequence seq = ASN1Sequence.getInstance(obj);
DSTU4145Params params;
if (seq.getObjectAt(0) instanceof ASN1ObjectIdentifier)
{
params = new DSTU4145Params(ASN1ObjectIdentifier.getInstance(seq.getObjectAt(0)));
}
else
{
params = new DSTU4145Params(DSTU4145ECBinary.getInstance(seq.getObjectAt(0)));
}
if (seq.size() == 2)
{
params.dke = ASN1OctetString.getInstance(seq.getObjectAt(1)).getOctets();
if (params.dke.length != DSTU4145Params.DEFAULT_DKE.length)
{
throw new IllegalArgumentException("object parse error");
}
}
return params;
}
throw new IllegalArgumentException("object parse error");
}
public ASN1Primitive toASN1Primitive()
{
ASN1EncodableVector v = new ASN1EncodableVector();
if (namedCurve != null)
{
v.add(namedCurve);
}
else
{
v.add(ecbinary);
}
if (!org.spongycastle.util.Arrays.areEqual(dke, DEFAULT_DKE))
{
v.add(new DEROctetString(dke));
}
return new DERSequence(v);
}
}
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