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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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package org.bouncycastle.oer.its.ieee1609dot2;

import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.oer.its.ieee1609dot2.basetypes.Signature;
import org.bouncycastle.oer.its.ieee1609dot2.basetypes.UINT8;

/**
 * ImplicitCertificate ::= CertificateBase (WITH COMPONENTS {...,
 * type(implicit),
 * toBeSigned(WITH COMPONENTS {...,
 * verifyKeyIndicator(WITH COMPONENTS {reconstructionValue})
 * }),
 * signature ABSENT
 * })
 */
public class ImplicitCertificate
    extends CertificateBase
{

    public ImplicitCertificate(CertificateBase base)
    {
        this(base.getVersion(), base.getIssuer(), base.getToBeSigned(), base.getSignature());
    }

    public ImplicitCertificate(UINT8 version, IssuerIdentifier issuer, ToBeSignedCertificate toBeSignedCertificate, Signature signature)
    {
        super(version, CertificateType.implicit, issuer, toBeSignedCertificate, signature);
    }


    private ImplicitCertificate(ASN1Sequence sequence)
    {
        super(sequence);
        if (!getType().equals(CertificateType.implicit))
        {
            throw new IllegalArgumentException("object was certificate base but the type was not implicit");
        }
    }

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

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

        return null;

    }
}