@Deprecated
    @Override
    @SuppressWarnings("InlineMeSuggester")
    protected Object engineGetParameter(String param) throws InvalidParameterException {
        return null;
    }
Configures the public key algorithm context ({@code EVP_PKEY_CTX}) associated with this
operation.

<p>The default implementation does nothing.

@param ctx reference to the context ({@code EVP_PKEY_CTX}).
common/src/main/java/org/conscrypt/OpenSSLSignature.java