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      1 package org.bouncycastle.asn1.pkcs;
      2 
      3 import org.bouncycastle.asn1.ASN1Encodable;
      4 import org.bouncycastle.asn1.ASN1EncodableVector;
      5 import org.bouncycastle.asn1.ASN1Sequence;
      6 import org.bouncycastle.asn1.DERBitString;
      7 import org.bouncycastle.asn1.DERObject;
      8 import org.bouncycastle.asn1.DERSequence;
      9 import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
     10 
     11 /**
     12  * PKCS10 Certification request object.
     13  * <pre>
     14  * CertificationRequest ::= SEQUENCE {
     15  *   certificationRequestInfo  CertificationRequestInfo,
     16  *   signatureAlgorithm        AlgorithmIdentifier{{ SignatureAlgorithms }},
     17  *   signature                 BIT STRING
     18  * }
     19  * </pre>
     20  */
     21 public class CertificationRequest
     22     extends ASN1Encodable
     23 {
     24     protected CertificationRequestInfo reqInfo = null;
     25     protected AlgorithmIdentifier sigAlgId = null;
     26     protected DERBitString sigBits = null;
     27 
     28     public static CertificationRequest getInstance(Object o)
     29     {
     30         if (o instanceof CertificationRequest)
     31         {
     32             return (CertificationRequest)o;
     33         }
     34 
     35         if (o != null)
     36         {
     37             return new CertificationRequest(ASN1Sequence.getInstance(o));
     38         }
     39 
     40         return null;
     41     }
     42 
     43     protected CertificationRequest()
     44     {
     45     }
     46 
     47     public CertificationRequest(
     48         CertificationRequestInfo requestInfo,
     49         AlgorithmIdentifier     algorithm,
     50         DERBitString            signature)
     51     {
     52         this.reqInfo = requestInfo;
     53         this.sigAlgId = algorithm;
     54         this.sigBits = signature;
     55     }
     56 
     57     public CertificationRequest(
     58         ASN1Sequence seq)
     59     {
     60         reqInfo = CertificationRequestInfo.getInstance(seq.getObjectAt(0));
     61         sigAlgId = AlgorithmIdentifier.getInstance(seq.getObjectAt(1));
     62         sigBits = (DERBitString)seq.getObjectAt(2);
     63     }
     64 
     65     public CertificationRequestInfo getCertificationRequestInfo()
     66     {
     67         return reqInfo;
     68     }
     69 
     70     public AlgorithmIdentifier getSignatureAlgorithm()
     71     {
     72         return sigAlgId;
     73     }
     74 
     75     public DERBitString getSignature()
     76     {
     77         return sigBits;
     78     }
     79 
     80     public DERObject toASN1Object()
     81     {
     82         // Construct the CertificateRequest
     83         ASN1EncodableVector  v = new ASN1EncodableVector();
     84 
     85         v.add(reqInfo);
     86         v.add(sigAlgId);
     87         v.add(sigBits);
     88 
     89         return new DERSequence(v);
     90     }
     91 }
     92