import { LdKeyPairInstance } from '@transmute/ld-key-pair';
import { JsonWebKey2020, Sm2VerificationKey2020, Sm2VerificationKey2019 } from './types';
export declare class Sm2KeyPair implements LdKeyPairInstance {
    id: string;
    type: string;
    controller: string;
    publicKey: Uint8Array;
    privateKey?: Uint8Array;
    static generate: ({ secureRandom, }: {
        secureRandom: () => Uint8Array;
    }) => Promise<Sm2KeyPair>;
    static from: (k: JsonWebKey2020 | Sm2VerificationKey2019 | Sm2VerificationKey2020) => Promise<Sm2KeyPair>;
    static fromFingerprint({ fingerprint }: {
        fingerprint: string;
    }): Promise<Sm2KeyPair>;
    constructor(opts: {
        id: string;
        type: string;
        controller: string;
        publicKey: Uint8Array;
        privateKey?: Uint8Array;
    });
    fingerprint(): Promise<string>;
    signer(type?: 'Sm2'): {
        sign({ data }: {
            data: import("@noble/curves/abstract/utils").Hex;
        }): Promise<Uint8Array>;
    };
    verifier(type?: 'Sm2'): {
        verify({ data, signature, }: {
            data: import("@noble/curves/abstract/utils").Hex;
            signature: Uint8Array;
        }): Promise<boolean>;
    };
    export(options?: {
        privateKey?: boolean;
        type: 'JsonWebKey2020' | 'Sm2VerificationKey2020' | 'Sm2VerificationKey2019';
    }): Promise<JsonWebKey2020 | Sm2VerificationKey2020 | Sm2VerificationKey2019>;
}