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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.cms;

import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Object;
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;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;

/**
 * RFC 5652:
 * Content encryption key delivery mechanisms.
 * 

*

 * OriginatorPublicKey ::= SEQUENCE {
 *     algorithm AlgorithmIdentifier,
 *     publicKey BIT STRING 
 * }
 * 
*/ public class OriginatorPublicKey extends ASN1Object { private AlgorithmIdentifier algorithm; private DERBitString publicKey; public OriginatorPublicKey( AlgorithmIdentifier algorithm, byte[] publicKey) { this.algorithm = algorithm; this.publicKey = new DERBitString(publicKey); } /** * @deprecated use getInstance() */ public OriginatorPublicKey( ASN1Sequence seq) { algorithm = AlgorithmIdentifier.getInstance(seq.getObjectAt(0)); publicKey = (DERBitString)seq.getObjectAt(1); } /** * Return an OriginatorPublicKey object from a tagged object. * * @param obj the tagged object holding the object we want. * @param explicit true if the object is meant to be explicitly * tagged false otherwise. * @exception IllegalArgumentException if the object held by the * tagged object cannot be converted. */ public static OriginatorPublicKey getInstance( ASN1TaggedObject obj, boolean explicit) { return getInstance(ASN1Sequence.getInstance(obj, explicit)); } /** * Return an OriginatorPublicKey object from the given object. *

* Accepted inputs: *

    *
  • null → null *
  • {@link OriginatorPublicKey} object *
  • {@link org.bouncycastle.asn1.ASN1Sequence#getInstance(java.lang.Object) ASN1Sequence} input formats with OriginatorPublicKey structure inside *
* * @param obj the object we want converted. * @exception IllegalArgumentException if the object cannot be converted. */ public static OriginatorPublicKey getInstance( Object obj) { if (obj instanceof OriginatorPublicKey) { return (OriginatorPublicKey)obj; } if (obj != null) { return new OriginatorPublicKey(ASN1Sequence.getInstance(obj)); } return null; } public AlgorithmIdentifier getAlgorithm() { return algorithm; } public DERBitString getPublicKey() { return publicKey; } /** * Produce an object suitable for an ASN1OutputStream. */ public ASN1Primitive toASN1Primitive() { ASN1EncodableVector v = new ASN1EncodableVector(); v.add(algorithm); v.add(publicKey); return new DERSequence(v); } }




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