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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 1.4. Note: this package includes the NTRU encryption algorithms.

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package org.bouncycastle.asn1.cms;

import java.io.IOException;

import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.ASN1SequenceParser;
import org.bouncycastle.asn1.ASN1TaggedObjectParser;

/**
 * RFC 5652 {@link ContentInfo} object parser.
 *
 *  
 * ContentInfo ::= SEQUENCE {
 *     contentType ContentType,
 *     content [0] EXPLICIT ANY DEFINED BY contentType OPTIONAL }
 *


*/
public class ContentInfoParser
{
private ASN1ObjectIdentifier contentType;
private ASN1TaggedObjectParser content;
public ContentInfoParser(
ASN1SequenceParser seq)
throws IOException
{
contentType = (ASN1ObjectIdentifier)seq.readObject();
content = (ASN1TaggedObjectParser)seq.readObject();
}
public ASN1ObjectIdentifier getContentType()
{
return contentType;
}
public ASN1Encodable getContent(
int tag)
throws IOException
{
if (content != null)
{
return content.getObjectParser(tag, true);
}
return null;
}
}