/// <reference types="node" />
import { ILinkedDataSignature } from "./models/ILinkedDataSignature";
import { 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 node The node
     *
     * @param did The DID that has the verification methods of the signer
     *
     * @returns The newly created signer
     */
    static create(node: string, did: string): Promise<IotaSigner>;
    /**
     *
     * Signs a string message using the Ed25519 signature algorithm
     *
     * @param message The message
     * @param method The method used for signing (referred as a DID fragment identifier)
     * @param secret The secret
     *
     * @returns The signature details including its value encoded in Base58
     *
     */
    sign(message: Buffer, method: string, secret: string): Promise<ISigningResult>;
    /**
     * Signs a JSON document
     *
     * @param doc The JSON document as an object or as a string
     * @param verificationMethod  Verification method
     * @param secret The secret
     * @param signatureType The type of signature to be generated
     *
     * @returns The JSON document including its corresponding Linked Data Signature
     */
    signJson(doc: string | Record<string, unknown>, verificationMethod: string, secret: string, signatureType?: string): Promise<ILinkedDataSignature>;
    /**
     *  Signs a JSON-LD document
     *
     * @param doc The JSON-LD document as an object or as a string
     * @param verificationMethod  Verification method
     * @param secret The secret
     * @param signatureType The type of signature to be generated (by default 'Ed25519Signature2018')
     *
     * @returns The Linked Data Signature represented as a Linked Data Proof
     *
     */
    signJsonLd(doc: string | Record<string, unknown>, verificationMethod: string, secret: string, signatureType?: string): Promise<ILinkedDataSignature>;
}