JuneAndGreen/sm-crypto

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

1159 stars · 287 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A pure JavaScript implementation of the Chinese national cryptography (Guomi) algorithms SM2 (elliptic curve encryption/signatures), SM3 (hash), and SM4 (block cipher). It runs in Node.js and browsers via npm.

Use cases

• implement sm2 encryption and decryption in javascript
• generate sm2 key pairs and sign/verify data in the browser
• compute sm3 hash of a string in nodejs
• encrypt data with sm4 block cipher in js
• integrate chinese national standard cryptography into a web app
• verify signatures from a backend that uses guomi algorithms

When to choose

• you need SM2/SM3/SM4 in JavaScript with no native dependencies
• you must interoperate with Chinese government or financial systems requiring Guomi algorithms
• you want a lightweight, MIT-licensed crypto library usable in both browser and Node.js

When to avoid

• you need general-purpose cryptography like RSA, AES, or SHA-2
• you require formally audited or FIPS-certified crypto implementations
• you need constant-time guarantees against side-channel attacks in hostile environments

Facets

library · maturity active

cryptography security security developer-tools web-development browser sm2 sm3 sm4 chinese-national-cryptography elliptic-curve encryption digital-signature hash nodejs javascript

Member repositories

For agents

markdown · JSON · MCP: product_card(name="JuneAndGreen/sm-crypto")