org.bouncycastle.tls.crypto.TlsSRP6Server Maven / Gradle / Ivy

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The Bouncy Castle Java APIs for the TLS, including a JSSE provider. The APIs are designed primarily to be used in conjunction 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.tls.crypto;

import java.io.IOException;
import java.math.BigInteger;

/**
 * Basic interface for an SRP-6 server implementation.
 */
public interface TlsSRP6Server
{
    /**
     * Generates the server's credentials that are to be sent to the client.
     * @return The server's public value to the client
     */
    BigInteger generateServerCredentials();

    /**
     * Processes the client's credentials. If valid the shared secret is generated and returned.
     * @param clientA The client's credentials
     * @return A shared secret BigInteger
     * @throws IOException If client's credentials are invalid
     */
    BigInteger calculateSecret(BigInteger clientA) throws IOException;
}