/// <reference types="node" />
import type { IJsonDocument } from "./models/IJsonDocument";
import type { ILinkedDataSignature } from "./models/ILinkedDataSignature";
import type { ISigningOptions } from "./models/ISigningOptions";
import type { ISigningResult } from "./models/ISigningResult";
/**
 * It allows to sign and verify messages using a Verification Method provided by a DID.
 *
 * It generates and verifies EdDSA (Ed25519) signatures.
 *
 */
export declare class IotaSigner {
    private readonly _did;
    private readonly _didDocument;
    private constructor();
    get did(): string;
    /**
     * Creates a new signer associating it with a particular decentralized identity.
     *
     * @param did The DID that has the verification methods of the signer.
     * @param node The node.
     * @returns The newly created signer.
     */
    static create(did: string, node?: string): Promise<IotaSigner>;
    /**
     * Signs a string message using the Ed25519 signature algorithm.
     *
     * @param message The message.
     * @param options The signing options.
     * @returns The signature details including its value encoded in Base58.
     */
    sign(message: Buffer, options: ISigningOptions): Promise<ISigningResult>;
    /**
     * Signs a JSON(-LD) document.
     *
     * @param doc The JSON(-LD) document as an object or as a string.
     * @param options The parameters to use to generate the signature.
     * @returns The JSON document including its corresponding Linked Data Signature.
     */
    signJson(doc: string | IJsonDocument, options: ISigningOptions): Promise<ILinkedDataSignature>;
    /**
     * Signs a JSON document.
     *
     * @param doc The JSON document as an object or as a string.
     * @param options The parameters to use to generate the signature.
     * @returns The JSON document including its corresponding Linked Data Signature.
     */
    private doSignJson;
    /**
     * Signs a JSON-LD document.
     *
     * @param doc The JSON-LD document as an object or as a string.
     * @param options The parameters to use to generate the signature.
     * @returns The Linked Data Signature represented as a Linked Data Proof.
     */
    private doSignJsonLd;
}