/**
 * Sync wrappers for common operations.
 *
 * These require getCrypto() to have been called first.
 */
/**
 * Zero a Uint8Array's contents.
 */
export declare function zeroBytes(buf: Uint8Array): void;
/**
 * Zero a Buffer (Node.js compatibility).
 * @deprecated Use zeroBytes(Uint8Array) instead
 */
export declare function zeroBuffer(buf: Buffer): void;
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