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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 with debug enabled.

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package org.bouncycastle.asn1.cms;

import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.ASN1OctetString;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1TaggedObject;
import org.bouncycastle.asn1.BERSequence;
import org.bouncycastle.asn1.BERTaggedObject;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;

/**
 * RFC 5652 EncryptedContentInfo object.
 *
 * 
 * EncryptedContentInfo ::= SEQUENCE {
 *     contentType ContentType,
 *     contentEncryptionAlgorithm ContentEncryptionAlgorithmIdentifier,
 *     encryptedContent [0] IMPLICIT EncryptedContent OPTIONAL 
 * }
 * 
*/ public class EncryptedContentInfo extends ASN1Object { private ASN1ObjectIdentifier contentType; private AlgorithmIdentifier contentEncryptionAlgorithm; private ASN1OctetString encryptedContent; public EncryptedContentInfo( ASN1ObjectIdentifier contentType, AlgorithmIdentifier contentEncryptionAlgorithm, ASN1OctetString encryptedContent) { this.contentType = contentType; this.contentEncryptionAlgorithm = contentEncryptionAlgorithm; this.encryptedContent = encryptedContent; } private EncryptedContentInfo( ASN1Sequence seq) { if (seq.size() < 2) { throw new IllegalArgumentException("Truncated Sequence Found"); } contentType = (ASN1ObjectIdentifier)seq.getObjectAt(0); contentEncryptionAlgorithm = AlgorithmIdentifier.getInstance( seq.getObjectAt(1)); if (seq.size() > 2) { encryptedContent = ASN1OctetString.getInstance( (ASN1TaggedObject)seq.getObjectAt(2), false); } } /** * Return an EncryptedContentInfo object from the given object. *

* Accepted inputs: *

    *
  • null → null *
  • {@link EncryptedContentInfo} object *
  • {@link org.bouncycastle.asn1.ASN1Sequence#getInstance(java.lang.Object) ASN1Sequence} input formats *
* * @param obj the object we want converted. * @exception IllegalArgumentException if the object cannot be converted. */ public static EncryptedContentInfo getInstance( Object obj) { if (obj instanceof EncryptedContentInfo) { return (EncryptedContentInfo)obj; } if (obj != null) { return new EncryptedContentInfo(ASN1Sequence.getInstance(obj)); } return null; } public ASN1ObjectIdentifier getContentType() { return contentType; } public AlgorithmIdentifier getContentEncryptionAlgorithm() { return contentEncryptionAlgorithm; } public ASN1OctetString getEncryptedContent() { return encryptedContent; } /** * Produce an object suitable for an ASN1OutputStream. */ public ASN1Primitive toASN1Primitive() { ASN1EncodableVector v = new ASN1EncodableVector(); v.add(contentType); v.add(contentEncryptionAlgorithm); if (encryptedContent != null) { v.add(new BERTaggedObject(false, 0, encryptedContent)); } return new BERSequence(v); } }




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