DHParameter.java
资源名称:security.rar [点击查看]
上传用户:lior1029
上传日期:2013-05-07
资源大小:209k
文件大小:1k
源码类别:
CA认证
开发平台:
Java
- package org.bouncycastle.asn1.pkcs;
- import java.math.BigInteger;
- import java.util.*;
- import org.bouncycastle.asn1.*;
- public class DHParameter
- implements DEREncodable
- {
- DERInteger p, g, l;
- public DHParameter(
- BigInteger p,
- BigInteger g,
- int l)
- {
- this.p = new DERInteger(p);
- this.g = new DERInteger(g);
- if (l != 0)
- {
- this.l = new DERInteger(l);
- }
- else
- {
- this.l = null;
- }
- }
- public DHParameter(
- ASN1Sequence seq)
- {
- Enumeration e = seq.getObjects();
- p = (DERInteger)e.nextElement();
- g = (DERInteger)e.nextElement();
- if (e.hasMoreElements())
- {
- l = (DERInteger)e.nextElement();
- }
- else
- {
- l = null;
- }
- }
- public BigInteger getP()
- {
- return p.getPositiveValue();
- }
- public BigInteger getG()
- {
- return g.getPositiveValue();
- }
- public BigInteger getL()
- {
- if (l == null)
- {
- return null;
- }
- return l.getPositiveValue();
- }
- public DERObject getDERObject()
- {
- ASN1EncodableVector v = new ASN1EncodableVector();
- v.add(p);
- v.add(g);
- if (this.getL() != null)
- {
- v.add(l);
- }
- return new DERSequence(v);
- }
- }