import { WebBuf, type Base32Options } from "@webbuf/webbuf";
export declare class FixedBuf<N extends number> {
    _buf: WebBuf;
    _size: N;
    constructor(size: N, buf: WebBuf);
    get buf(): WebBuf;
    static fromBuf<N extends number>(size: N, buf: WebBuf): FixedBuf<N>;
    static alloc<N extends number>(size: N, fill?: number): FixedBuf<N>;
    static fromHex<N extends number>(size: N, hex: string): FixedBuf<N>;
    toHex(): string;
    static fromBase64(size: number, base64: string): FixedBuf<number>;
    toBase64(): string;
    /**
     * Encode this buffer as a base32 string.
     *
     * @param options - Options for encoding
     * @param options.alphabet - The alphabet to use (default: "Crockford")
     * @param options.padding - Whether to use padding for Rfc4648* alphabets (default: true)
     * @returns The base32 encoded string
     */
    toBase32(options?: Base32Options): string;
    /**
     * Create a FixedBuf from a base32 encoded string.
     *
     * @param size - The expected size of the decoded buffer
     * @param str - The base32 encoded string
     * @param options - Options for decoding
     * @param options.alphabet - The alphabet to use (default: "Crockford")
     * @param options.padding - Whether the string uses padding for Rfc4648* alphabets (default: true)
     * @returns The decoded FixedBuf
     */
    static fromBase32<N extends number>(size: N, str: string, options?: Base32Options): FixedBuf<N>;
    static fromRandom<N extends number>(size: N): FixedBuf<N>;
    clone(): FixedBuf<N>;
    toReverse(): FixedBuf<N>;
    /**
     * Securely wipe the buffer by filling it with zeros.
     *
     * Call this method before releasing references to buffers containing
     * sensitive data (keys, passwords, etc.) to minimize the window where
     * sensitive data remains in memory.
     *
     * Note: This is a best-effort security measure. JavaScript's JIT compiler
     * may optimize away the write if it detects the buffer isn't read afterward,
     * and copies of the data may exist elsewhere in memory.
     */
    wipe(): void;
}