bitwiseshiftleft/sjcl
[DEPRECATED] Stanford Javascript Crypto Library observed · 2026-10-09
Health v2 · maintenance only
52/100
- Activity 64
- Release rhythm 8
- Longevity 100
Flags: no_license
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-22. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 5992
- days_rel: n/a
- days_push: 217
- n_releases_24m: 0
Adoption not part of the score
7194 stars · 993 forks observed · 2026-10-09
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
The Stanford Javascript Crypto Library (SJCL) is a JavaScript library providing high-level cryptographic primitives such as AES encryption, ECC, and hashing for web applications. It is officially deprecated and should not be used in new projects.
Use cases
- encrypt data in the browser with AES
- perform elliptic curve cryptography in JavaScript
- hash and HMAC data client-side
- generate cryptographically secure random numbers in JS
- maintain legacy code that depends on sjcl
When to choose
- you must maintain or patch an existing codebase already using sjcl
- you need a small, dependency-free crypto library for a legacy browser-only environment
When to avoid
- starting any new project - the library is deprecated
- you need actively maintained, audited cryptography - use WebCrypto or libsodium instead
- you need protection against known ECC vulnerabilities - only the latest 1.0.9 fixes the ECDH flaw
Facets
library · maturity abandoned
cryptography security security web-development developer-tools browser deprecated crypto ecc aes javascript nodejs
2 sources
- readme: https://github.com/bitwiseshiftleft/sjcl · fetched 2026-10-09 · cb4604c74086
- registry_npm: https://registry.npmjs.org/sjcl · fetched 2026-08-29 · 89317e91614c
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| bitwiseshiftleft/sjcl | main | 52 |
For agents
markdown · JSON · MCP: product_card(name="bitwiseshiftleft/sjcl")
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem