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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.x509;

import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Enumerated;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
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;

/**
 * ObjectDigestInfo ASN.1 structure used in v2 attribute certificates.
 * 
 * 
 *  
 *    ObjectDigestInfo ::= SEQUENCE {
 *         digestedObjectType  ENUMERATED {
 *                 publicKey            (0),
 *                 publicKeyCert        (1),
 *                 otherObjectTypes     (2) },
 *                         -- otherObjectTypes MUST NOT
 *                         -- be used in this profile
 *         otherObjectTypeID   OBJECT IDENTIFIER OPTIONAL,
 *         digestAlgorithm     AlgorithmIdentifier,
 *         objectDigest        BIT STRING
 *    }
 *   
 * 
* */ public class ObjectDigestInfo extends ASN1Object { /** * The public key is hashed. */ public final static int publicKey = 0; /** * The public key certificate is hashed. */ public final static int publicKeyCert = 1; /** * An other object is hashed. */ public final static int otherObjectDigest = 2; ASN1Enumerated digestedObjectType; ASN1ObjectIdentifier otherObjectTypeID; AlgorithmIdentifier digestAlgorithm; DERBitString objectDigest; public static ObjectDigestInfo getInstance( Object obj) { if (obj instanceof ObjectDigestInfo) { return (ObjectDigestInfo)obj; } if (obj != null) { return new ObjectDigestInfo(ASN1Sequence.getInstance(obj)); } return null; } public static ObjectDigestInfo getInstance( ASN1TaggedObject obj, boolean explicit) { return getInstance(ASN1Sequence.getInstance(obj, explicit)); } /** * Constructor from given details. *

* If digestedObjectType is not {@link #publicKeyCert} or * {@link #publicKey} otherObjectTypeID must be given, * otherwise it is ignored. * * @param digestedObjectType The digest object type. * @param otherObjectTypeID The object type ID for * otherObjectDigest. * @param digestAlgorithm The algorithm identifier for the hash. * @param objectDigest The hash value. */ public ObjectDigestInfo( int digestedObjectType, ASN1ObjectIdentifier otherObjectTypeID, AlgorithmIdentifier digestAlgorithm, byte[] objectDigest) { this.digestedObjectType = new ASN1Enumerated(digestedObjectType); if (digestedObjectType == otherObjectDigest) { this.otherObjectTypeID = otherObjectTypeID; } this.digestAlgorithm = digestAlgorithm; this.objectDigest = new DERBitString(objectDigest); } private ObjectDigestInfo( ASN1Sequence seq) { if (seq.size() > 4 || seq.size() < 3) { throw new IllegalArgumentException("Bad sequence size: " + seq.size()); } digestedObjectType = ASN1Enumerated.getInstance(seq.getObjectAt(0)); int offset = 0; if (seq.size() == 4) { otherObjectTypeID = ASN1ObjectIdentifier.getInstance(seq.getObjectAt(1)); offset++; } digestAlgorithm = AlgorithmIdentifier.getInstance(seq.getObjectAt(1 + offset)); objectDigest = DERBitString.getInstance(seq.getObjectAt(2 + offset)); } public ASN1Enumerated getDigestedObjectType() { return digestedObjectType; } public ASN1ObjectIdentifier getOtherObjectTypeID() { return otherObjectTypeID; } public AlgorithmIdentifier getDigestAlgorithm() { return digestAlgorithm; } public DERBitString getObjectDigest() { return objectDigest; } /** * Produce an object suitable for an ASN1OutputStream. * *

     *  
     *    ObjectDigestInfo ::= SEQUENCE {
     *         digestedObjectType  ENUMERATED {
     *                 publicKey            (0),
     *                 publicKeyCert        (1),
     *                 otherObjectTypes     (2) },
     *                         -- otherObjectTypes MUST NOT
     *                         -- be used in this profile
     *         otherObjectTypeID   OBJECT IDENTIFIER OPTIONAL,
     *         digestAlgorithm     AlgorithmIdentifier,
     *         objectDigest        BIT STRING
     *    }
     *   
     * 
*/ public ASN1Primitive toASN1Primitive() { ASN1EncodableVector v = new ASN1EncodableVector(); v.add(digestedObjectType); if (otherObjectTypeID != null) { v.add(otherObjectTypeID); } v.add(digestAlgorithm); v.add(objectDigest); return new DERSequence(v); } }




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