记录一些无用的js逆向

一、ChatGPT tcr9i 文件

• 原文件：https://tcr9i.chat.openai.com/v2/35536E1E-65B4-4D96-9D97-6ADB7EFF8147/api.js
• 核心代码

  n = (t = "aRcML9blbQYBLFa9ZxYMY9H0H6yjGlntXpmy2zWhnu2t").length,
      r = Math.ceil(n / 2),
      i = [t.substring(0, r), t.substring(r, n)],
      o = i[0].split(""),
      a = i[1].split(""),
      c = "",
      o.forEach((function(e, t) {
          c += e,
          a[t] && (c += a[t])
      }
      )),
      h = atob(c) || ""

  执行结果集

  https://client-api.arkoselabs.com

---

逆向反编译

function reverseWeave(result) {
    let o = [];
    let a = [];
    // 分解字符到两个数组
    for (let i = 0; i < result.length; i++) {
        if (i % 2 === 0) {
            o.push(result[i]);
        } else {
            a.push(result[i]);
        }
    }
    // 根据原始问题的逻辑重构字符串
    let r = Math.ceil(result.length / 2);
    let original = o.join('') + a.join('').substring(0, result.length - r);
    return original;
}

let result = btoa('https://client-api.arkoselabs.com')
console.log(reverseWeave(result));

执行结果集

aRcML9blbQYBLFa9ZxYMY9H0H6yjGlntXpmy2zWhnu2t

–

二、 校验 Openai-Sentinel-Proof-Token 是否正确

接口：https://chatgpt.com/backend-api/sentinel/chat-requirements
返回参数 e

{
    "proofofwork": {
        "required": true,
        "seed": "0.6179261898961731",
        "difficulty": "0002bc"
    }
}

Openai-Sentinel-Proof-Token 生成详情 查看 _getAnswer 函数
校验 Openai-Sentinel-Proof-Token

import hashlib
answer = "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"
e ={
    "proofofwork": {
        "required": True,
        "seed": "0.36724381083618585",
        "difficulty": "05748d"
    }
}

s = answer.lstrip("gAAAAAB")
hash_value = hashlib.sha3_512((e["proofofwork"]["seed"] + s).encode()).hexdigest()
print(hash_value[:len(e["proofofwork"]["difficulty"])] , e["proofofwork"]["difficulty"])
print(hash_value[:len(e["proofofwork"]["difficulty"])] <= e["proofofwork"]["difficulty"])