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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.asn1.its;

import org.bouncycastle.asn1.ASN1Enumerated;
import org.bouncycastle.asn1.ASN1Primitive;

/**
 * CertificateType ::= ENUMERATED {
 * explicit,
 * implicit,
 * ...
 * }
 */
public class HashAlgorithm
{

    public static final HashAlgorithm sha256 = new HashAlgorithm(0);
    public static final HashAlgorithm sha384 = new HashAlgorithm(1);
    private final ASN1Enumerated enumerated;

    protected HashAlgorithm(int ordinal)
    {
        enumerated = new ASN1Enumerated(ordinal);
    }

    private HashAlgorithm(ASN1Enumerated enumerated)
    {
        this.enumerated = enumerated;
    }

    public HashAlgorithm getInstance(Object src)
    {
        if (src == null)
        {
            return null;
        }
        else if (src instanceof HashAlgorithm)
        {
            return (HashAlgorithm)src;
        }
        else
        {
            return new HashAlgorithm(ASN1Enumerated.getInstance(src));
        }
    }

    public ASN1Primitive toASN1Primitive()
    {
        return enumerated;
    }
}