org.bouncycastle.oer.its.AesCcmCiphertext Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of bcutil-jdk15on Show documentation

The Bouncy Castle Java APIs for ASN.1 extension and utility APIs used to support bcpkix and bctls. This jar contains APIs for JDK 1.5 and up.

The newest version!

package org.bouncycastle.oer.its;

import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1OctetString;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;

/**
 *  *     AesCcmCiphertext ::= SEQUENCE {
 *         nonce OCTET STRING (SIZE (12))
 *         ccmCiphertext Opaque -- 16 bytes longer than plaintext
 *     }
 * 
 */
public class AesCcmCiphertext
    extends ASN1Object
{
    private final ASN1OctetString nonce;
    private final SequenceOfOctetString opaque;

    public AesCcmCiphertext(ASN1OctetString nonce, SequenceOfOctetString opaque)
    {
        this.nonce = nonce;
        this.opaque = opaque;
    }

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

        ASN1Sequence seq = ASN1Sequence.getInstance(o);
        return new Builder()
            .setNonce(ASN1OctetString.getInstance(seq.getObjectAt(0)))
            .setOpaque(SequenceOfOctetString.getInstance(seq.getObjectAt(1)))
            .createAesCcmCiphertext();
    }

    public ASN1Primitive toASN1Primitive()
    {
        return Utils.toSequence(nonce, opaque);
    }

    public static class Builder
    {

        private ASN1OctetString nonce;
        private SequenceOfOctetString opaque;

        public Builder setNonce(ASN1OctetString nonce)
        {
            this.nonce = nonce;
            return this;
        }

        public Builder setOpaque(SequenceOfOctetString opaque)
        {
            this.opaque = opaque;
            return this;
        }

        public AesCcmCiphertext createAesCcmCiphertext()
        {
            return new AesCcmCiphertext(nonce, opaque);
        }
    }
}