/**
 * Delegation Credential Verification
 *
 * Provides functions to verify delegation credentials that allow
 * users to grant agents permission to act on their behalf with specific scopes.
 */
import * as jose from 'jose';
import type { DelegationCredential, VerifyDelegationOptions, DelegationVerificationResult } from '@belticlabs/kya-core';
/**
 * Media type for DelegationCredential JWTs.
 */
export declare const DELEGATION_TYP = "application/beltic-delegation+jwt";
/**
 * Verify a delegation credential JWT.
 *
 * @param jwt - The JWT to verify
 * @param publicKey - Public key or JWKS for verification
 * @param options - Verification options
 * @returns Verification result with the credential if valid
 */
export declare function verifyDelegation(jwt: string, publicKey: jose.KeyLike | jose.JWK, options?: VerifyDelegationOptions): Promise<DelegationVerificationResult>;
/**
 * Check if a delegation credential is expired.
 */
export declare function isDelegationExpired(credential: DelegationCredential, clockSkewSeconds?: number): boolean;
/**
 * Check if a delegation credential is not yet valid.
 */
export declare function isDelegationNotYetValid(credential: DelegationCredential, clockSkewSeconds?: number): boolean;
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