/**
 * @license
 * Copyright 2020 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
/**
 * Interface for verifying digital signatures.
 *
 * Security guarantees: Implementations of these interfaces are secure
 * against adaptive chosen-message attacks. Signing data ensures the
 * authenticity and the integrity of that data, but not its secrecy.
 *
 */
export declare abstract class PublicKeyVerify {
    /**
     * Verifies the `signature` of `message`.
     *
     * @param signature the signature, must be non-null.
     * @param message the message, must be non-null.
     * @return true iff the signature is valid, false
     *     otherwise.
     */
    abstract verify(signature: Uint8Array, message: Uint8Array): Promise<boolean>;
}