import { KeyUse, CryptoSystem } from './types.js';
export declare const KeyDoesNotExist: Error;
export declare const NotKeyPair: Error;
export declare const NotKey: Error;
export declare const ECCNotEnabled: Error;
export declare const UnsupportedCrypto: Error;
export declare const InvalidKeyUse: Error;
export declare const InvalidMaxValue: Error;
export declare function checkIsKeyPair(keypair: any): CryptoKeyPair;
export declare function checkIsKey(key: any): CryptoKey;
export declare function checkValidCryptoSystem(type: CryptoSystem): void;
export declare function checkValidKeyUse(use: KeyUse): void;
declare const _default: {
    KeyDoesNotExist: Error;
    NotKeyPair: Error;
    NotKey: Error;
    ECCNotEnabled: Error;
    UnsupportedCrypto: Error;
    InvalidKeyUse: Error;
    checkIsKeyPair: typeof checkIsKeyPair;
    checkIsKey: typeof checkIsKey;
    checkValidCryptoSystem: typeof checkValidCryptoSystem;
    checkValidKeyUse: typeof checkValidKeyUse;
    InvalidMaxValue: Error;
};
export default _default;