org.bouncycastle.asn1.crmf.PKMACValue 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     ******/
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package org.bouncycastle.asn1.crmf;

import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1TaggedObject;
import org.bouncycastle.asn1.DERBitString;
import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.asn1.cmp.CMPObjectIdentifiers;
import org.bouncycastle.asn1.cmp.PBMParameter;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;

/**
 * Password-based MAC value for use with POPOSigningKeyInput.
 */
public class PKMACValue
    extends ASN1Object
{
    private AlgorithmIdentifier  algId;
    private DERBitString        value;

    private PKMACValue(ASN1Sequence seq)
    {
        algId = AlgorithmIdentifier.getInstance(seq.getObjectAt(0));
        value = DERBitString.getInstance(seq.getObjectAt(1));
    }

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

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

        return null;
    }

    public static PKMACValue getInstance(ASN1TaggedObject obj, boolean isExplicit)
    {
        return getInstance(ASN1Sequence.getInstance(obj, isExplicit));
    }

    /**
     * Creates a new PKMACValue.
     * @param params parameters for password-based MAC
     * @param value MAC of the DER-encoded SubjectPublicKeyInfo
     */
    public PKMACValue(
        PBMParameter params,
        DERBitString value)
    {
        this(new AlgorithmIdentifier(
                    CMPObjectIdentifiers.passwordBasedMac, params), value);
    }

    /**
     * Creates a new PKMACValue.
     * @param aid CMPObjectIdentifiers.passwordBasedMAC, with PBMParameter
     * @param value MAC of the DER-encoded SubjectPublicKeyInfo
     */
    public PKMACValue(
        AlgorithmIdentifier aid,
        DERBitString value)
    {
        this.algId = aid;
        this.value = value;
    }

    public AlgorithmIdentifier getAlgId()
    {
        return algId;
    }

    public DERBitString getValue()
    {
        return value;
    }

    /**
     *      * PKMACValue ::= SEQUENCE {
     *      algId  AlgorithmIdentifier,
     *      -- algorithm value shall be PasswordBasedMac 1.2.840.113533.7.66.13
     *      -- parameter value is PBMParameter
     *      value  BIT STRING }
     * 
     * @return a basic ASN.1 object representation.
     */
    public ASN1Primitive toASN1Primitive()
    {
        ASN1EncodableVector v = new ASN1EncodableVector();

        v.add(algId);
        v.add(value);

        return new DERSequence(v);
    }
}