org.bouncycastle.asn1.cms.EncryptedContentInfoParser Maven / Gradle / Ivy

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The Bouncy Castle Java APIs for ASN.1 extension and utility APIs used to support bcpkix and bctls with the BC FIPS provider. The APIs may also be used with other providers although if being used in a FIPS context it is the responsibility of the user to ensure that any other providers used are FIPS certified and used appropriately.

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/***************************************************************/
/******    DO NOT EDIT THIS CLASS bc-java SOURCE FILE     ******/
/***************************************************************/
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;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;

/**
 * Parser for RFC 5652 EncryptedContentInfo object.
 * 
 * 
 * EncryptedContentInfo ::= SEQUENCE {
 *     contentType ContentType,
 *     contentEncryptionAlgorithm ContentEncryptionAlgorithmIdentifier,
 *     encryptedContent [0] IMPLICIT EncryptedContent OPTIONAL 
 * }
 * 
 */
public class EncryptedContentInfoParser
{
    private ASN1ObjectIdentifier    _contentType;
    private AlgorithmIdentifier     _contentEncryptionAlgorithm;
    private ASN1TaggedObjectParser _encryptedContent;

    public EncryptedContentInfoParser(
        ASN1SequenceParser  seq) 
        throws IOException
    {
        _contentType = (ASN1ObjectIdentifier)seq.readObject();
        _contentEncryptionAlgorithm = AlgorithmIdentifier.getInstance(seq.readObject().toASN1Primitive());
        _encryptedContent = (ASN1TaggedObjectParser)seq.readObject();
    }
    
    public ASN1ObjectIdentifier getContentType()
    {
        return _contentType;
    }
    
    public AlgorithmIdentifier getContentEncryptionAlgorithm()
    {
        return _contentEncryptionAlgorithm;
    }

    public ASN1Encodable getEncryptedContent(
        int  tag) 
        throws IOException
    {
        return _encryptedContent.getObjectParser(tag, false);
    }
}