/// <reference types="node" />
declare type coseMap = Map<number, any>;
declare type jwk = {
    kty?: string;
    use?: string;
    key_ops?: string[];
    alg?: string;
    kid?: string;
    x5u?: string;
    x5c?: string[];
    x5t?: string;
    'x5t#S256'?: string;
    crv?: string;
    x?: string;
    y?: string;
    d?: string;
    n?: string;
    e?: string;
    p?: string;
    q?: string;
    dp?: string;
    dq?: string;
    qi?: string;
    oth?: {
        r?: string;
        d?: string;
        t?: string;
    }[];
    k?: string;
    ext?: boolean;
    [key: string]: unknown;
};
declare type pem = string;
/**
 * Verify data using signature and key(COSE, JWK or PEM).
 */
declare class Verifier {
    private constructor();
    /**
     * Verify data using signature and COSE key.
     *
     * @param data verification content
     * @param signature calculated signature for data
     * @param key public key
     * @returns Validity of signature
     * @throws {@link KeyParseError} if COSE key is imperfect
     */
    static verifyWithCOSEKey(data: Buffer, signature: Buffer, key: coseMap): Promise<boolean>;
    /**
     * Verify data using signature and JWK.
     *
     * @param data verification content
     * @param signature calculated signature for data
     * @param key public key
     * @returns Validity of signature
     * @throws {@link KeyParseError} if JWK is imperfect
     */
    static verifyWithJWK(data: Buffer, signature: Buffer, key: jwk): Promise<boolean>;
    /**
     * Verify data using signature and PEM.
     *
     * @param data verification content
     * @param signature calculated signature for data
     * @param key public key
     * @returns Validity of signature
     */
    static verifyWithPEM(data: Buffer, signature: Buffer, key: pem, algorithm: string, hashAlgorithm?: string): boolean;
}
export default Verifier;