# indutny/elliptic

Fast Elliptic Curve Cryptography in plain javascript

Repository: https://github.com/indutny/elliptic
Canonical: https://ross.abutalabs.com/products/elliptic
Language: JavaScript
License Family: other
Last push: 2024-11-13T03:39:36+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4516, "days_push": 658, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1764, forks 520 (observed 2026-08-28T04:05:32.987912+00:00)

## What it is
A fast, pure-JavaScript implementation of elliptic curve cryptography supporting ECDSA signing/verification, ECDH key exchange, and EdDSA. It runs in Node.js and browsers without native dependencies.

## Use cases
- sign and verify messages with ECDSA in JavaScript
- generate elliptic curve key pairs in the browser
- perform ECDH key agreement in Node.js
- implement blockchain transaction signing with secp256k1
- add ECC to a JavaScript app without native modules

## When to choose
- you need elliptic curve crypto in pure JavaScript with no native dependencies
- you need secp256k1 or other common curves in Node or the browser
- you need Ed25519/EdDSA support in JavaScript

## When to avoid
- you can use the built-in Node.js crypto module or WebCrypto for better performance and security
- you need audited, side-channel-resistant cryptography for high-security production use
- you need RSA or symmetric encryption

## Facets
- artifact type: library
- maturity: maintenance
- function: cryptography, security
- domain: security, developer-tools
- platform: browser
- tags: ecc, ecdsa, ecdh, secp256k1, elliptic-curves, pure-javascript, nodejs, javascript

## Member repositories
- indutny/elliptic (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:32.987912+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 2026-08-30T03:26:38.553957+00:00, confidence not recorded.
  - readme: https://github.com/indutny/elliptic (fetched 2026-08-28T04:05:32.987912+00:00, sha 638061bf1550)
  - registry_npm: https://registry.npmjs.org/elliptic (fetched 2026-08-29T11:05:22.019906+00:00, sha 55adbffb611c)
- Data as of 2026-08-30T08:39:29.467469+00:00.