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The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.8. Note: this package includes the NTRU encryption algorithms.

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package org.bouncycastle.asn1.x9;

import java.math.BigInteger;

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.DERBitString;
import org.bouncycastle.asn1.DERSequence;

/**
 * Diffie-Hellman domain validation parameters.
 * 
 * ValidationParams ::= SEQUENCE {
 *    seed         BIT STRING,
 *    pgenCounter  INTEGER
 * }
 * 
*/ public class ValidationParams extends ASN1Object { private DERBitString seed; private ASN1Integer pgenCounter; public static ValidationParams getInstance(ASN1TaggedObject obj, boolean explicit) { return getInstance(ASN1Sequence.getInstance(obj, explicit)); } public static ValidationParams getInstance(Object obj) { if (obj instanceof ValidationParams) { return (ValidationParams)obj; } else if (obj != null) { return new ValidationParams(ASN1Sequence.getInstance(obj)); } return null; } public ValidationParams(byte[] seed, int pgenCounter) { if (seed == null) { throw new IllegalArgumentException("'seed' cannot be null"); } this.seed = new DERBitString(seed); this.pgenCounter = new ASN1Integer(pgenCounter); } public ValidationParams(DERBitString seed, ASN1Integer pgenCounter) { if (seed == null) { throw new IllegalArgumentException("'seed' cannot be null"); } if (pgenCounter == null) { throw new IllegalArgumentException("'pgenCounter' cannot be null"); } this.seed = seed; this.pgenCounter = pgenCounter; } private ValidationParams(ASN1Sequence seq) { if (seq.size() != 2) { throw new IllegalArgumentException("Bad sequence size: " + seq.size()); } this.seed = DERBitString.getInstance(seq.getObjectAt(0)); this.pgenCounter = ASN1Integer.getInstance(seq.getObjectAt(1)); } public byte[] getSeed() { return this.seed.getBytes(); } public BigInteger getPgenCounter() { return this.pgenCounter.getPositiveValue(); } public ASN1Primitive toASN1Primitive() { ASN1EncodableVector v = new ASN1EncodableVector(); v.add(this.seed); v.add(this.pgenCounter); return new DERSequence(v); } }




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