# wwwtyro/cryptico

An easy-to-use encryption system utilizing RSA and AES for javascript.

Repository: https://github.com/wwwtyro/cryptico
Canonical: https://ross.abutalabs.com/products/cryptico
Homepage: http://wwwtyro.github.com/cryptico
Language: JavaScript
License Family: other
Archived: true
Last push: 2021-01-18T16:57:56+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 5149, "days_push": 2053, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1177, forks 338 (observed 2026-08-28T04:03:52.853294+00:00)

## What it is
A JavaScript library providing easy-to-use public-key encryption combining RSA and AES, with support for message signing and public key identification. Keys are deterministically generated from a passphrase.

## Use cases
- encrypt messages in the browser with RSA and AES
- generate RSA key pairs from a passphrase in JavaScript
- sign encrypted messages with a private key
- verify message sender via public key ID
- exchange encrypted messages between users in a web app

## When to choose
- you need simple client-side encryption in JavaScript without heavy dependencies
- you want passphrase-derived RSA keys and message signing in one small library

## When to avoid
- you need a maintained, audited cryptography library for production security
- you require modern key sizes and algorithms beyond 1024-bit RSA
- your project requires a clear open-source license

## Facets
- artifact type: library
- maturity: maintenance
- function: cryptography, security
- domain: security, developer-tools, web-development
- platform: browser
- tags: rsa, aes, encryption-library, digital-signatures, public-key-cryptography, no-license, nodejs, javascript

## Member repositories
- wwwtyro/cryptico (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:52.853294+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:26:18.944621+00:00, confidence not recorded.
  - readme: https://github.com/wwwtyro/cryptico (fetched 2026-08-28T04:03:52.853294+00:00, sha 6c69fcdba1dc)
- Data as of 2026-08-30T08:39:29.467469+00:00.