org.bouncycastle.oer.its.ieee1609dot2.EncryptedData Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of bcutil-fips Show documentation

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.

The newest version!

package org.bouncycastle.oer.its.ieee1609dot2;

import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.oer.its.ItsUtils;

/**
 *  *     EncryptedData ::= SEQUENCE {
 *         recipients SequenceOfRecipientInfo,
 *         ciphertext SymmetricCiphertext
 *     }
 * 
 */
public class EncryptedData
    extends ASN1Object
{
    private final SequenceOfRecipientInfo recipients;
    private final SymmetricCiphertext ciphertext;

    public EncryptedData(SequenceOfRecipientInfo recipients, SymmetricCiphertext ciphertext)
    {
        this.recipients = recipients;
        this.ciphertext = ciphertext;
    }

    private EncryptedData(ASN1Sequence sequence)
    {
        if (sequence.size() != 2)
        {
            throw new IllegalArgumentException("expected sequence size of 2");
        }

        recipients = SequenceOfRecipientInfo.getInstance(sequence.getObjectAt(0));
        ciphertext = SymmetricCiphertext.getInstance(sequence.getObjectAt(1));

    }

    public static EncryptedData getInstance(Object o)
    {
        if (o instanceof EncryptedData)
        {
            return (EncryptedData)o;
        }

        if (o != null)
        {
            return new EncryptedData(ASN1Sequence.getInstance(o));
        }

        return null;
    }

    public ASN1Primitive toASN1Primitive()
    {
        return ItsUtils.toSequence(recipients, ciphertext);
    }

    public SequenceOfRecipientInfo getRecipients()
    {
        return recipients;
    }

    public SymmetricCiphertext getCiphertext()
    {
        return ciphertext;
    }

    public static Builder builder()
    {
        return new Builder();
    }


    public static class Builder
    {

        private SequenceOfRecipientInfo recipients;
        private SymmetricCiphertext ciphertext;

        public Builder setRecipients(SequenceOfRecipientInfo recipients)
        {
            this.recipients = recipients;
            return this;
        }

        public Builder setCiphertext(SymmetricCiphertext ciphertext)
        {
            this.ciphertext = ciphertext;
            return this;
        }

        public EncryptedData createEncryptedData()
        {
            return new EncryptedData(recipients, ciphertext);
        }
    }
}