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      1 package org.bouncycastle.asn1.ocsp;
      2 
      3 import org.bouncycastle.asn1.ASN1EncodableVector;
      4 import org.bouncycastle.asn1.ASN1Integer;
      5 import org.bouncycastle.asn1.ASN1Object;
      6 import org.bouncycastle.asn1.ASN1OctetString;
      7 import org.bouncycastle.asn1.ASN1Primitive;
      8 import org.bouncycastle.asn1.ASN1Sequence;
      9 import org.bouncycastle.asn1.ASN1TaggedObject;
     10 import org.bouncycastle.asn1.DERSequence;
     11 import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
     12 
     13 public class CertID
     14     extends ASN1Object
     15 {
     16     AlgorithmIdentifier    hashAlgorithm;
     17     ASN1OctetString        issuerNameHash;
     18     ASN1OctetString        issuerKeyHash;
     19     ASN1Integer             serialNumber;
     20 
     21     public CertID(
     22         AlgorithmIdentifier hashAlgorithm,
     23         ASN1OctetString     issuerNameHash,
     24         ASN1OctetString     issuerKeyHash,
     25         ASN1Integer         serialNumber)
     26     {
     27         this.hashAlgorithm = hashAlgorithm;
     28         this.issuerNameHash = issuerNameHash;
     29         this.issuerKeyHash = issuerKeyHash;
     30         this.serialNumber = serialNumber;
     31     }
     32 
     33     private CertID(
     34         ASN1Sequence    seq)
     35     {
     36         hashAlgorithm = AlgorithmIdentifier.getInstance(seq.getObjectAt(0));
     37         issuerNameHash = (ASN1OctetString)seq.getObjectAt(1);
     38         issuerKeyHash = (ASN1OctetString)seq.getObjectAt(2);
     39         serialNumber = (ASN1Integer)seq.getObjectAt(3);
     40     }
     41 
     42     public static CertID getInstance(
     43         ASN1TaggedObject obj,
     44         boolean          explicit)
     45     {
     46         return getInstance(ASN1Sequence.getInstance(obj, explicit));
     47     }
     48 
     49     public static CertID getInstance(
     50         Object  obj)
     51     {
     52         if (obj instanceof CertID)
     53         {
     54             return (CertID)obj;
     55         }
     56         else if (obj != null)
     57         {
     58             return new CertID(ASN1Sequence.getInstance(obj));
     59         }
     60 
     61         return null;
     62     }
     63 
     64     public AlgorithmIdentifier getHashAlgorithm()
     65     {
     66         return hashAlgorithm;
     67     }
     68 
     69     public ASN1OctetString getIssuerNameHash()
     70     {
     71         return issuerNameHash;
     72     }
     73 
     74     public ASN1OctetString getIssuerKeyHash()
     75     {
     76         return issuerKeyHash;
     77     }
     78 
     79     public ASN1Integer getSerialNumber()
     80     {
     81         return serialNumber;
     82     }
     83 
     84     /**
     85      * Produce an object suitable for an ASN1OutputStream.
     86      * <pre>
     87      * CertID          ::=     SEQUENCE {
     88      *     hashAlgorithm       AlgorithmIdentifier,
     89      *     issuerNameHash      OCTET STRING, -- Hash of Issuer's DN
     90      *     issuerKeyHash       OCTET STRING, -- Hash of Issuers public key
     91      *     serialNumber        CertificateSerialNumber }
     92      * </pre>
     93      */
     94     public ASN1Primitive toASN1Primitive()
     95     {
     96         ASN1EncodableVector    v = new ASN1EncodableVector();
     97 
     98         v.add(hashAlgorithm);
     99         v.add(issuerNameHash);
    100         v.add(issuerKeyHash);
    101         v.add(serialNumber);
    102 
    103         return new DERSequence(v);
    104     }
    105 }
    106