Hook_SMcrypto.js — Extract SM algorithm parameters

Hooks the SM2, SM3, and SM4 algorithms in SM-crypto.

Thanks to @Hosinoharu (opens new window) for the idea and initial script.

Supported algorithms

Algorithm	Type
SM2	Asymmetric encryption
SM3	Hashing
SM4	Symmetric encryption

When to use it

If a website's requests or responses contain encrypted parameters, enable this script to help analyze the encryption quickly. Example output:

Frequently asked questions

Why is there no console output after enabling the script?

1. console.log may have been disabled

Try enabling hook log to prevent JavaScript from overwriting the logging method.

2. The website does not use SM-crypto for encryption

This script only logs cryptographic operations performed by SM-crypto. If the website uses another library for encryption or decryption, it will produce no output. If you have confirmed that the website uses SM-crypto but still see no output, contact me (WeChat: I-0xsdeo).