import { Buffer } from "node:buffer";

//#region src/oauth/pkce.d.ts

/**
 * Encode `data` as URL-safe base64 without padding.
 *
 * @internal
 */
declare function base64Url(data: Buffer | Uint8Array | string): string;
/**
 * Generate a cryptographically random PKCE code verifier. The output
 * is URL-safe base64 (43-128 chars per the spec).
 *
 * @stable
 */
declare function generatePkceVerifier(byteLength?: number): string;
/**
 * Compute the SHA-256 challenge for a verifier (S256 method).
 *
 * @stable
 */
declare function computePkceChallenge(verifier: string): string;
/**
 * Generate a cryptographically random `state` parameter.
 *
 * @stable
 */
declare function generateState(byteLength?: number): string;
//#endregion
export { base64Url, computePkceChallenge, generatePkceVerifier, generateState };
//# sourceMappingURL=pkce.d.ts.map