import type { JWK, KeyLike } from 'jose';
export declare const KeyTypeSymbol: unique symbol;
export interface KeyBase extends KeyLike {
    type: 'public' | 'private';
    [KeyTypeSymbol]: string;
}
export declare type SignFunction = (key: any, message: Uint8Array) => Promise<Uint8Array>;
export declare type VerifyFunction = (key: any, sig: Uint8Array, message: Uint8Array) => Promise<boolean>;
export declare type ImportKeyFunction = (jwk: JWK) => Promise<KeyLike | Uint8Array>;
export declare type ExportKeyFunction = (key: KeyLike | Uint8Array) => Promise<JWK>;
export interface Algorithm {
    name: string;
    checkJwk(jwk: JWK): boolean;
    checkKey(key: KeyLike | Uint8Array): boolean;
    checkHeader(header: {
        alg?: string;
    }): boolean;
    sign: SignFunction;
    verify: VerifyFunction;
    importKey: ImportKeyFunction;
    exportKey: ExportKeyFunction;
}
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