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package org.bouncycastle.openpgp.operator;
import org.bouncycastle.bcpg.HashAlgorithmTags;
import org.bouncycastle.openpgp.PGPException;
/**
* A factory for digest algorithms.
*/
public interface PGPDigestCalculatorProvider
{
/**
* Construct a new instance of a cryptographic digest.
*
* @param algorithm the identifier of the {@link HashAlgorithmTags digest algorithm} to
* instantiate.
* @return a digest calculator for the specified algorithm.
* @throws PGPException if an error occurs constructing the specified digest.
*/
PGPDigestCalculator get(int algorithm)
throws PGPException;
}
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