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The Bouncy Castle Java APIs for CMS, PKCS, EAC, TSP, CMP, CRMF, OCSP, and certificate generation. This jar contains APIs for JDK 1.5 to JDK 1.8. The APIs can be used in conjunction with a JCE/JCA provider such as the one provided with the Bouncy Castle Cryptography APIs.

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package org.bouncycastle.operator;

import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;

/**
 * General finder for converting OIDs and AlgorithmIdentifiers into strings.
 */
public interface AlgorithmNameFinder
{
    /**
     * Return true if the passed in objectIdentifier has a "human friendly" name associated with it.
     *
     * @param objectIdentifier the OID of interest.
     * @return true if a name lookup exists for the OID, false otherwise.
     */
    boolean hasAlgorithmName(ASN1ObjectIdentifier objectIdentifier);

    /**
     * Return a string representation of the passed in objectIdentifier.
     *
     * @param objectIdentifier the OID of interest.
     * @return a "human friendly" representation of the OID, the OID as a string if none available.
     */
    String getAlgorithmName(ASN1ObjectIdentifier objectIdentifier);

    /**
     * Return a string representation of the passed in AlgorithmIdentifier, based on the OID in the AlgorithmField, with the parameters
     * included where appropriate.
     *
     * @param algorithmIdentifier the AlgorithmIdentifier of interest.
     * @return a "human friendly" representation of the algorithmIdentifier, the identifiers OID as a string if none available.
     */
    String getAlgorithmName(AlgorithmIdentifier algorithmIdentifier);
}