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Informations about the package phpecc

Pure PHP Elliptic Curve DSA and DH

Build Status HHVM Status

Scrutinizer Code Quality Code Coverage

Latest Stable Version Total Downloads Latest Unstable Version License

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.

License

This package is released under the MIT license.

Requirements

Installation

You can install this library via Composer :

composer require mdanter/ecc

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 for your pull requests.

Usage

WARNING Though this library is tested for compliance to standards, it is subject to at least one documented vulnerability in public-key derivation, which can potentially allow attackers to grab your private keys. USE AT YOUR OWN RISK. You've been warned.

WARNING All following documentation is based off the master branch, not the tagged versions.

Key generation

The lazy way

You're in luck, there's a command line tool ! The examples assume that phpecc (found in the bin/ folder) is on your path.

Generate a private/public keypair:

Alternately, you can pipe the output to file:

The generated keys should be compatible with OpenSSL. However, if you find cases where OpenSSL cannot parse a key generated using phpecc, please submit an issue with the parameters used to generate your key.

Note: you don't actually need the public key part from the output, it's also encoded in the private key segment.

To get the list of supported curves :

The developer way

TODO...

Asymmetric encryption

The dead simple example:
A lesser dead simple example

A more realistic example, assumes you are Alice, and that your private key is stored (unencrypted) in PEM format on file. You will of course also need Bob's public key in PEM format on file. This example clearly shows that this library can be improved...

You want to encrypt a message for Bob --and only Bob-- to read.

Alice encodes the data

Now you can email/snail mail/whatever the encrypted message to Bob, and he will be able to decrypt your secret data (assuming he already has your public key, and his private key...)

Bob decodes the encrypted data

All versions of phpecc with dependencies

PHP Build Version
Package Version
Requires php Version >=5.4.0
ext-gmp Version *
ext-mcrypt Version *
fgrosse/phpasn1 Version ~1.3.1
symfony/console Version ~2.6
Composer command for our command line client (download client) This client runs in each environment. You don't need a specific PHP version etc. The first 20 API calls are free. Standard composer command

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