/**
 * @module
 * Type definitions for JWT utilities.
 */
export declare class JwtAlgorithmNotImplemented extends Error {
    constructor(alg: string);
}
export declare class JwtTokenInvalid extends Error {
    constructor(token: string);
}
export declare class JwtTokenNotBefore extends Error {
    constructor(token: string);
}
export declare class JwtTokenExpired extends Error {
    constructor(token: string);
}
export declare class JwtTokenIssuedAt extends Error {
    constructor(currentTimestamp: number, iat: number);
}
export declare class JwtHeaderInvalid extends Error {
    constructor(header: object);
}
export declare class JwtTokenSignatureMismatched extends Error {
    constructor(token: string);
}
export declare enum CryptoKeyUsage {
    Encrypt = "encrypt",
    Decrypt = "decrypt",
    Sign = "sign",
    Verify = "verify",
    DeriveKey = "deriveKey",
    DeriveBits = "deriveBits",
    WrapKey = "wrapKey",
    UnwrapKey = "unwrapKey"
}
/**
 * JWT Payload
 */
export type JWTPayload = {
    [key: string]: unknown;
    /**
     * The token is checked to ensure it has not expired.
     */
    exp?: number;
    /**
     * The token is checked to ensure it is not being used before a specified time.
     */
    nbf?: number;
    /**
     * The token is checked to ensure it is not issued in the future.
     */
    iat?: number;
};