import { Credential, CredentialProof } from './Credential';
export declare type VerifyFunction = (credentialProof: CredentialProof) => boolean;
/**
 * Provide utility methods to verify a presentation/credential
 */
export declare class PresentationVerifier {
    verifyAnchor: VerifyFunction;
    verifySignature: VerifyFunction;
    constructor(verifyAnchor?: VerifyFunction, verifySignature?: VerifyFunction);
    /**
     * Non cryptographically secure verify the Credential
     * Performs a synchronous proof verification only.
     * @param credential - A credential object with expirationDate, claim and proof
     * @return true if verified, false otherwise.
     */
    nonCryptographicallySecureVerify(credential: Credential): Promise<any>;
    /**
     * Cryptographically secure verify the Credential.
     * Performs a non cryptographically secure verification, attestation check and signature validation.
     * @param credential - A credential object with expirationDate, claim and proof
     * @param verifyAttestationFunc - Async method to verify a credential attestation
     * @param verifySignatureFunc - Async method to verify a credential signature
     * @return true if verified, false otherwise.
     */
    cryptographicallySecureVerify(credential: Credential): Promise<any>;
    /**
     * Verify if a credential was granted for a specific requesterId and requestId.
     *
     * @param credential - A credential object
     * @param requesterId - A requester Id used to calculate the granted signature
     * @param requesterId - A request Id used to calculate the granted signature
     * @return true if verified, false otherwise.
     */
    verifyGrant(credential: Credential, requesterId: string, requestId: string): Promise<any>;
}