| package org.bouncycastle.asn1.cryptopro; |
| |
| import java.math.BigInteger; |
| import java.util.Enumeration; |
| |
| import org.bouncycastle.asn1.ASN1EncodableVector; |
| import org.bouncycastle.asn1.ASN1Integer; |
| import org.bouncycastle.asn1.ASN1Object; |
| import org.bouncycastle.asn1.ASN1Primitive; |
| import org.bouncycastle.asn1.ASN1Sequence; |
| import org.bouncycastle.asn1.ASN1TaggedObject; |
| import org.bouncycastle.asn1.DERSequence; |
| |
| public class GOST3410ParamSetParameters |
| extends ASN1Object |
| { |
| int keySize; |
| ASN1Integer p, q, a; |
| |
| public static GOST3410ParamSetParameters getInstance( |
| ASN1TaggedObject obj, |
| boolean explicit) |
| { |
| return getInstance(ASN1Sequence.getInstance(obj, explicit)); |
| } |
| |
| public static GOST3410ParamSetParameters getInstance( |
| Object obj) |
| { |
| if(obj == null || obj instanceof GOST3410ParamSetParameters) |
| { |
| return (GOST3410ParamSetParameters)obj; |
| } |
| |
| if(obj instanceof ASN1Sequence) |
| { |
| return new GOST3410ParamSetParameters((ASN1Sequence)obj); |
| } |
| |
| throw new IllegalArgumentException("Invalid GOST3410Parameter: " + obj.getClass().getName()); |
| } |
| |
| public GOST3410ParamSetParameters( |
| int keySize, |
| BigInteger p, |
| BigInteger q, |
| BigInteger a) |
| { |
| this.keySize = keySize; |
| this.p = new ASN1Integer(p); |
| this.q = new ASN1Integer(q); |
| this.a = new ASN1Integer(a); |
| } |
| |
| public GOST3410ParamSetParameters( |
| ASN1Sequence seq) |
| { |
| Enumeration e = seq.getObjects(); |
| |
| keySize = ((ASN1Integer)e.nextElement()).getValue().intValue(); |
| p = (ASN1Integer)e.nextElement(); |
| q = (ASN1Integer)e.nextElement(); |
| a = (ASN1Integer)e.nextElement(); |
| } |
| |
| /** |
| * @deprecated use getKeySize |
| */ |
| public int getLKeySize() |
| { |
| return keySize; |
| } |
| |
| public int getKeySize() |
| { |
| return keySize; |
| } |
| |
| public BigInteger getP() |
| { |
| return p.getPositiveValue(); |
| } |
| |
| public BigInteger getQ() |
| { |
| return q.getPositiveValue(); |
| } |
| |
| public BigInteger getA() |
| { |
| return a.getPositiveValue(); |
| } |
| |
| public ASN1Primitive toASN1Primitive() |
| { |
| ASN1EncodableVector v = new ASN1EncodableVector(); |
| |
| v.add(new ASN1Integer(keySize)); |
| v.add(p); |
| v.add(q); |
| v.add(a); |
| |
| return new DERSequence(v); |
| } |
| } |