/**
 * RFC 8785 JSON Canonicalization Scheme (JCS) implementation
 * https://www.rfc-editor.org/rfc/rfc8785
 *
 * This module provides deterministic JSON serialization for cryptographic
 * signing. Any two compliant implementations will produce identical byte
 * sequences for the same input, enabling signature verification.
 *
 * Key properties:
 * - Object keys sorted lexicographically by UTF-16 code units
 * - No whitespace between tokens
 * - Numbers serialized per ES6 specification
 * - Strings minimally escaped (only required escapes)
 */
export declare class CanonicalizeError extends Error {
    readonly value?: unknown | undefined;
    constructor(message: string, value?: unknown | undefined);
}
/**
 * Canonicalize a JavaScript value to RFC 8785 JSON string.
 *
 * @param value - Any JSON-compatible value
 * @returns Canonical JSON string
 * @throws CanonicalizeError for non-JSON values (undefined, NaN, Infinity, BigInt, etc.)
 */
export declare function canonicalize(value: unknown): string;
/**
 * Verify that a JSON string is in canonical form.
 *
 * @param json - JSON string to verify
 * @returns true if the string is in canonical form
 */
export declare function isCanonical(json: string): boolean;
/**
 * Parse JSON and return canonical form.
 *
 * @param json - JSON string (may be non-canonical)
 * @returns Canonical JSON string
 */
export declare function parseAndCanonicalize(json: string): string;
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