import { RawSignedModel } from './RawSignedModel';
import { IPrivateKey, ICardCrypto } from '../types';
import { IExtraData } from './ICard';
/**
 * Parameters for the card signature generation.
 */
export interface IRawSignParams {
    /**
     * The card to generate the signature for in the form of
     * {@link RawSignedModel} object.
     */
    readonly model: RawSignedModel;
    /**
     * The private key to use to generate the signature.
     */
    readonly signerPrivateKey: IPrivateKey;
    /**
     * Custom attributes to associate with the signature. If provided, these
     * will also be signed.
     */
    readonly extraFields?: IExtraData;
    /**
     * Identifier of the signature. Default is "self".
     */
    readonly signer?: string;
}
/**
 * Class responsible for generating signatures of the cards.
 */
export declare class ModelSigner {
    private readonly crypto;
    /**
     * Initializes a new instance of `ModelSigner`.
     * @param {ICardCrypto} crypto - Object implementing the
     * {@link ICardCrypto} interface.
     */
    constructor(crypto: ICardCrypto);
    /**
     * Generates a new signature based on `rawParams`.
     * @param {IRawSignParams} rawParams
     */
    sign(rawParams: IRawSignParams): void;
    private prepareParams;
    private validate;
}