import type { IJsonLdNodeObject } from "@twin.org/data-json-ld";
import { type IDidVerifiableCredential } from "@twin.org/standards-w3c-did";
import { type IJwtHeader, type IJwtPayload } from "@twin.org/web";
import type { IIdentityResolverComponent } from "../models/IIdentityResolverComponent.js";
/**
 * Helper methods for verification.
 */
export declare class VerificationHelper {
    /**
     * Runtime name for the class.
     */
    static readonly CLASS_NAME: string;
    /**
     * Verify the JWT and return the decoded header and payload.
     * @param resolver The resolver to use for finding the document.
     * @param jwt The token to verify.
     * @returns The decoded header and payload.
     */
    static verifyJwt<T extends IJwtHeader, U extends IJwtPayload>(resolver: IIdentityResolverComponent, jwt: string): Promise<{
        header: T;
        payload: U;
    }>;
    /**
     * Verify the proof for the document.
     * @param resolver The resolver to use for finding the document.
     * @param secureDocument The secure document to verify.
     * @returns True if all proofs in the document are verified successfully.
     */
    static verifyProof(resolver: IIdentityResolverComponent, secureDocument: IJsonLdNodeObject): Promise<boolean>;
    /**
     * Check a verifiable credential is within its validity period.
     * @param credential The credential to check, either VC data model v1 or v2.
     * @throws GeneralError if the credential has expired or is not yet valid.
     */
    static checkValidityPeriod(credential: IDidVerifiableCredential): void;
}