import type { RoleCredentialSubject } from '@energyweb/credential-governance';
import type { VerifiableCredential, StatusList2021Entry } from '@ew-did-registry/credentials-interface';
import * as jwt from 'jsonwebtoken/index';
export interface VerificationResult {
    verified: boolean;
    error: string;
}
export declare const verificationResult: (verified: boolean, error: string) => VerificationResult;
export interface ClaimData {
    fields: {
        [key: string]: string | number;
    };
    claimType: string;
    claimTypeVersion: number;
}
export interface RolePayload extends jwt.JwtPayload {
    credentialStatus?: StatusList2021Entry;
    claimData: ClaimData;
    signer: string;
}
export interface RoleEIP191JWT {
    payload: RolePayload;
    eip191Jwt: string;
}
/**
 * Maps verifiable credential issuer to his DID
 * @param issuer issuer of verifiable credential
 * @returns DID of issuer
 */
export declare const issuerDID: (issuer: VerifiableCredential<RoleCredentialSubject>['issuer']) => string;
/**
 * Upgrades the DID fields of a RolePayload with the chain identifier
 * @param roleJwt claim
 * @returns
 */
export declare const transformClaim: (roleJwt: RoleEIP191JWT) => RoleEIP191JWT | undefined;
/**
 * Filters valid RoleEIP191Jwt
 * @param claim credentials
 * @returns
 */
export declare const filterOutMaliciousClaims: (claim: RoleEIP191JWT | undefined) => claim is RoleEIP191JWT;
/**
 * Check if a claim is EIP191Jwt or not
 * @param claim claim to validated
 * @returns
 */
export declare function isEIP191Jwt(claim: RoleEIP191JWT | unknown): claim is RoleEIP191JWT;
/**
 * Validates if a credential is valid Verifiable Credential
 * @param vc
 * @returns
 */
export declare function isVerifiableCredential(vc: VerifiableCredential<RoleCredentialSubject> | unknown): vc is VerifiableCredential<RoleCredentialSubject>;
/**
 * Check if given value is a valid IPFS CID.
 *
 * ```typescript
 * isCID('Qm...');
 * ```
 *
 * @param {Any} hash value to check
 *
 */
export declare function isCID(hash: unknown): boolean;