axiom-json-canonicalizer

纯 Python 标准库实现的 JCS RFC 8785 JSON 规范化工具，提供命令行与 Python API：对象键排序、去除多余空白、字符串 NFC 规范化、数字最短往返表示，输出 UTF-8 字节稳定的规范化 JSON，并支持与已有规范化文件比对校验，可用于签名前规范化、哈希校验和审计日志。

kofna3369

热度 20.84

最近更新 2026-06-15 10:48:35

分类：效率依赖：代码执行 / 读写文件应用场景：数据处理 / 自动化脚本 / 文件转换

安装技能

复制下面的话术发给你的 Agent，它会通过 secure-skills 检索并安装该技能。

执行命令安装此 skill： npx secure-skills-cli add axiom-json-canonicalizer

Metadata

name: axiom-json-canonicalizer
description: JCS RFC 8785 — Canonical JSON. Convert any JSON to a deterministic, byte-to-byte identical canonical form. Use when you need to sign, hash, or compare JSON regardless of whitespace or key order. Pure stdlib, no LLM, no cloud.
version: 1.0.1
license: Apache-2.0

axiom-json-canonicalizer

Version: 1.0.1 Axioma Tools

Converts any JSON to a canonical form per RFC 8785 (JCS).

What this skill does

Object keys sorted lexicographically (post-NFC)
No insignificant whitespace
Numbers: ECMAScript shortest round-trip
Strings: NFC-normalized, surrogate-pair safe
Output: UTF-8 bytes (byte-to-byte stable)

When to use this skill

✅ Sign OAuth/JWT payloads (canonicalize before signing)
✅ Hash JSON for integrity verification
✅ Compare semantically-equivalent JSON
✅ Build tamper-evident audit logs
❌ Need pretty-printing (use json.dumps indent)
❌ Need JSON5/JSONL/JSONC (different specs)

Usage

python3 axiom_json_canonicalizer.py input.json > canonical.json
python3 axiom_json_canonicalizer.py input.json --verify canonical.json

from axiom_json_canonicalizer import canonicalize
canon_bytes = canonicalize(json_obj)  # UTF-8 bytes

Validation

Check	Status
Unit tests	81 cases
Performance	<100ms
Security	Pure stdlib, no injection
Determinism	Byte-to-byte stable
License	Apache-2.0

Last updated: 2026-06-14