src/org/bouncycastle/asn1/x509/CertificateList.java

   1
   2 package org.bouncycastle.asn1.x509;
   3
   4 import org.bouncycastle.asn1.*;
   5
   6 /**
   7  * PKIX RFC-2459
   8  *
   9  * The X.509 v2 CRL syntax is as follows.  For signature calculation,
  10  * the data that is to be signed is ASN.1 DER encoded.
  11  *
  12  * <pre>
  13  * CertificateList  ::=  SEQUENCE  {
  14  *      tbsCertList          TBSCertList,
  15  *      signatureAlgorithm   AlgorithmIdentifier,
  16  *      signatureValue       BIT STRING  }
  17  * </pre>
  18  */
  19 public class CertificateList
  20     implements DEREncodable
  21 {
  22     TBSCertList            tbsCertList;
  23     AlgorithmIdentifier    sigAlgId;
  24     DERBitString           sig;
  25
  26     public static CertificateList getInstance(
  27         ASN1TaggedObject obj,
  28         boolean          explicit)
  29     {
  30         return getInstance(ASN1Sequence.getInstance(obj, explicit));
  31     }
  32
  33     public static CertificateList getInstance(
  34         Object  obj)
  35     {
  36         if (obj instanceof CertificateList)
  37         {
  38             return (CertificateList)obj;
  39         }
  40         else if (obj instanceof ASN1Sequence)
  41         {
  42             return new CertificateList((ASN1Sequence)obj);
  43         }
  44
  45         throw new IllegalArgumentException("unknown object in factory");
  46     }
  47
  48     public CertificateList(
  49         ASN1Sequence seq)
  50     {
  51         tbsCertList = TBSCertList.getInstance(seq.getObjectAt(0));
  52         sigAlgId = AlgorithmIdentifier.getInstance(seq.getObjectAt(1));
  53         sig = (DERBitString)seq.getObjectAt(2);
  54     }
  55
  56     public TBSCertList getTBSCertList()
  57     {
  58         return tbsCertList;
  59     }
  60
  61     public TBSCertList.CRLEntry[] getRevokedCertificates()
  62     {
  63         return tbsCertList.getRevokedCertificates();
  64     }
  65
  66     public AlgorithmIdentifier getSignatureAlgorithm()
  67     {
  68         return sigAlgId;
  69     }
  70
  71     public DERBitString getSignature()
  72     {
  73         return sig;
  74     }
  75
  76     public int getVersion()
  77     {
  78         return tbsCertList.getVersion();
  79     }
  80
  81     public X509Name getIssuer()
  82     {
  83         return tbsCertList.getIssuer();
  84     }
  85
  86     public Time getThisUpdate()
  87     {
  88         return tbsCertList.getThisUpdate();
  89     }
  90
  91     public Time getNextUpdate()
  92     {
  93         return tbsCertList.getNextUpdate();
  94     }
  95
  96     public DERObject getDERObject()
  97     {
  98         DERConstructedSequence seq = new DERConstructedSequence();
  99         seq.addObject(tbsCertList);
 100         seq.addObject(sigAlgId);
 101         seq.addObject(sig);
 102         return seq;
 103     }
 104 }