PHPackages mdanter/ecc - PHPackages - PHPackages [Skip to content](#main-content)[PHPackages](/)[Directory](/)[Categories](/categories)[Trending](/trending)[Leaderboard](/leaderboard)[Changelog](/changelog)[Analyze](/analyze)[Collections](/collections)[Log in](/login)[Sign up](/register) 1. [Directory](/) 2. / 3. [Security](/categories/security) 4. / 5. mdanter/ecc Abandoned → [paragonie/ecc](/?search=paragonie%2Fecc)Library[Security](/categories/security) mdanter/ecc =========== PHP Elliptic Curve Cryptography library v1.0.0(5y ago)3475.7M—5.8%104[9 issues](https://github.com/phpecc/phpecc/issues)[6 PRs](https://github.com/phpecc/phpecc/pulls)20MITPHPPHP ^7.0||^8.0 Since Jul 7Pushed 2y ago26 watchersCompare [ Source](https://github.com/phpecc/phpecc)[ Packagist](https://packagist.org/packages/mdanter/ecc)[ Docs](https://github.com/phpecc/phpecc)[ RSS](/packages/mdanter-ecc/feed)WikiDiscussions master Synced 1mo ago READMEChangelogDependencies (4)Versions (27)Used By (20)Security (2) Pure PHP Elliptic Curve DSA and DH ---------------------------------- [](#pure-php-elliptic-curve-dsa-and-dh) [![Build Status](https://camo.githubusercontent.com/6a2b063922a281dc37680424b23ce62b0a46b8a085fe10c486ab406ec61f137c/68747470733a2f2f7472617669732d63692e6f72672f7068706563632f7068706563632e7376673f6272616e63683d6d6173746572)](https://travis-ci.org/phpecc/phpecc) [![Scrutinizer Code Quality](https://camo.githubusercontent.com/7941e4d98207d7568e5912a0a9990c3ae253b1e23ab8c2264b64d3fde2aafaab/68747470733a2f2f7363727574696e697a65722d63692e636f6d2f672f7068706563632f7068706563632f6261646765732f7175616c6974792d73636f72652e706e673f623d6d6173746572)](https://scrutinizer-ci.com/g/phpecc/phpecc?branch=master)[![Code Coverage](https://camo.githubusercontent.com/e5c5f0068c2d8d771191dfa156e7849f7525b42e7ddf8f63aa2b9ce01a5339b2/68747470733a2f2f7363727574696e697a65722d63692e636f6d2f672f7068706563632f7068706563632f6261646765732f636f7665726167652e706e673f623d6d6173746572)](https://scrutinizer-ci.com/g/phpecc/phpecc/?branch=master) [![Latest Stable Version](https://camo.githubusercontent.com/835a6b9022806290819dda9f286818d1bfe4770d317b0bce20c6c67e9ad9fa50/68747470733a2f2f706f7365722e707567782e6f72672f6d64616e7465722f6563632f762f737461626c652e706e67)](https://packagist.org/packages/mdanter/ecc)[![Total Downloads](https://camo.githubusercontent.com/7a6d440f545f1b728e03ee05ed80e50f55707b1f0db6b5e313d00a69934093c0/68747470733a2f2f706f7365722e707567782e6f72672f6d64616e7465722f6563632f646f776e6c6f6164732e706e67)](https://packagist.org/packages/mdanter/ecc)[![Latest Unstable Version](https://camo.githubusercontent.com/d3a98e28f85d926b4bd07460e9fd0c03acec43036d3ab31b776b648e62683b58/68747470733a2f2f706f7365722e707567782e6f72672f6d64616e7465722f6563632f762f756e737461626c652e706e67)](https://packagist.org/packages/mdanter/ecc)[![License](https://camo.githubusercontent.com/38b47d81c8f5b32ccaef6289bb927fa12d1fd02f249355919ff65f41017dc92e/68747470733a2f2f706f7365722e707567782e6f72672f6d64616e7465722f6563632f6c6963656e73652e706e67)](https://packagist.org/packages/mdanter/ecc) ### Information [](#information) This library is a rewrite/update of Matyas Danter's ECC library. All credit goes to him. For more information on Elliptic Curve Cryptography please read [this fine article](http://www.matyasdanter.com/2010/12/elliptic-curve-php-oop-dsa-and-diffie-hellman/). The library supports the following curves: - secp112r1 - secp256k1 - nistp192 - nistp224 - nistp256 / secp256r1 - nistp384 / secp384r1 - nistp521 During ECDSA, a random value `k` is required. It is acceptable to use a true RNG to generate this value, but should the same `k` value ever be repeatedly used for a key, an attacker can recover that signing key. The HMAC random generator can derive a deterministic k value from the message hash and private key, voiding this concern. The library uses a non-branching Montgomery ladder for scalar multiplication, as it's constant time and avoids secret dependant branches. ### License [](#license) This package is released under the MIT license. ### Requirements [](#requirements) - PHP 7.0+ or PHP 8.0+ - composer - ext-gmp Support for older PHP versions: - v0.4.x: php ^5.6|<7.2 - v0.5.x: php ^7.0 - v1.0.x: php ^7.0|^8.0 ### Installation [](#installation) You can install this library via Composer : `composer require mdanter/ecc:^1.0` ### Contribute [](#contribute) When sending in pull requests, please make sure to run the `make` command. The default target runs all PHPUnit and PHPCS tests. All tests must validate for your contribution to be accepted. It's also always a good idea to check the results of the [Scrutinizer analysis](https://scrutinizer-ci.com/g/phpecc/phpecc/) for your pull requests. ### Usage [](#usage) Examples: - [Key generation](./examples/key_generation.php) - [ECDH exchange](./examples/ecdh_exchange.php) - [Signature creation](./examples/creating_signature.php) - [Signature verification](./examples/verify_signature.php) ### Health Score 54 — FairBetter than 97% of packages Maintenance19 Infrequent updates — may be unmaintained Popularity64 Solid adoption and visibility Community47 Growing community involvement Maturity78 Established project with proven stability Bus Factor1 Top contributor holds 63% of commits — single point of failure How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window. **Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores. **Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement. **Maturity (30%)** — Project age, version count, PHP version support, and release stability. ### Release Activity Cadence Every ~125 days Recently: every ~194 days Total 20 Last Release 1948d ago Major Versions v0.4.7 → 7.3.x-dev2019-03-05 PHP version history (7 changes)v0.3.1PHP >=5.4.0 0.2.0PHP >=5.3.3 v0.4.0PHP >=5.6.0 v0.4.4PHP >=5.6.0, <7.2 v0.5.0PHP >=7.0 v0.5.1PHP ^7.0 v1.0.0PHP ^7.0||^8.0 ### Community Maintainers ![](https://www.gravatar.com/avatar/763cdc5cc50414bacd4ff1080eede79432f7c3cc26a3d8aa9031b1537a8bd734?d=identicon)[thomaskerin](/maintainers/thomaskerin) ![](https://www.gravatar.com/avatar/6bf97b6041a621ae7330b1bb13262ca91d42f467397b8f44c13eab7b3bd41271?d=identicon)[mdanter](/maintainers/mdanter) --- Top Contributors [![afk11](https://avatars.githubusercontent.com/u/5617245?v=4)](https://github.com/afk11 "afk11 (174 commits)")[![btcdrak](https://avatars.githubusercontent.com/u/7275704?v=4)](https://github.com/btcdrak "btcdrak (47 commits)")[![rubensayshi](https://avatars.githubusercontent.com/u/649160?v=4)](https://github.com/rubensayshi "rubensayshi (14 commits)")[![mdanter](https://avatars.githubusercontent.com/u/2213324?v=4)](https://github.com/mdanter "mdanter (8 commits)")[![fgrosse](https://avatars.githubusercontent.com/u/733004?v=4)](https://github.com/fgrosse "fgrosse (6 commits)")[![kornrunner](https://avatars.githubusercontent.com/u/725986?v=4)](https://github.com/kornrunner "kornrunner (6 commits)")[![Spomky](https://avatars.githubusercontent.com/u/1091072?v=4)](https://github.com/Spomky "Spomky (4 commits)")[![scintill](https://avatars.githubusercontent.com/u/848492?v=4)](https://github.com/scintill "scintill (2 commits)")[![xsilen-tt](https://avatars.githubusercontent.com/u/90232688?v=4)](https://github.com/xsilen-tt "xsilen-tt (2 commits)")[![johanderuijter](https://avatars.githubusercontent.com/u/1373219?v=4)](https://github.com/johanderuijter "johanderuijter (2 commits)")[![aztech-dev](https://avatars.githubusercontent.com/u/93562568?v=4)](https://github.com/aztech-dev "aztech-dev (2 commits)")[![scrutinizer-auto-fixer](https://avatars.githubusercontent.com/u/6253494?v=4)](https://github.com/scrutinizer-auto-fixer "scrutinizer-auto-fixer (1 commits)")[![staabm](https://avatars.githubusercontent.com/u/120441?v=4)](https://github.com/staabm "staabm (1 commits)")[![paragonie-security](https://avatars.githubusercontent.com/u/15914520?v=4)](https://github.com/paragonie-security "paragonie-security (1 commits)")[![makuser](https://avatars.githubusercontent.com/u/1778889?v=4)](https://github.com/makuser "makuser (1 commits)")[![mdance](https://avatars.githubusercontent.com/u/121057?v=4)](https://github.com/mdance "mdance (1 commits)")[![carusogabriel](https://avatars.githubusercontent.com/u/16328050?v=4)](https://github.com/carusogabriel "carusogabriel (1 commits)")[![paragonie-scott](https://avatars.githubusercontent.com/u/11591518?v=4)](https://github.com/paragonie-scott "paragonie-scott (1 commits)")[![dktapps](https://avatars.githubusercontent.com/u/14214667?v=4)](https://github.com/dktapps "dktapps (1 commits)")[![rgex](https://avatars.githubusercontent.com/u/3996942?v=4)](https://github.com/rgex "rgex (1 commits)") --- Tags ecdhECDSAellipticcurvesecp256k1nistp192nistp224nistp256nistp521nistp384DiffieHellmanphpeccsecp256r1 ### Code Quality TestsPHPUnit Code StylePHP\_CodeSniffer ### Embed Badge ![Health badge](/badges/mdanter-ecc/health.svg) ``` [![Health](https://phpackages.com/badges/mdanter-ecc/health.svg)](https://phpackages.com/packages/mdanter-ecc) ``` ### Alternatives [paragonie/ecc PHP Elliptic Curve Cryptography library 24682.1k29](/packages/paragonie-ecc)[simplito/elliptic-php Fast elliptic curve cryptography 2312.2M254](/packages/simplito-elliptic-php)[ionux/phactor Phactor is a high-performance PHP implementation of the elliptic curve math functions required to generate & verify private/public (asymmetric) EC keypairs and ECDSA signatures based on secp256k1 curve parameters. This library also includes a class to generate Service Identification Numbers (SINs) based on the published Identity Protocol v1 spec. 5275.0k30](/packages/ionux-phactor)[bitwasp/secp256k1-php PHP Extension with bindings for bitcoin/secp256k1. 58185.7k35](/packages/bitwasp-secp256k1-php)[kornrunner/secp256k1 Pure PHP secp256k1 37566.4k109](/packages/kornrunner-secp256k1)[acmephp/ssl PHP wrapper around OpenSSL extension providing SSL encoding, decoding, parsing and signing features 141.2M4](/packages/acmephp-ssl) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)