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Informations about the package phpecc
Pure PHP Elliptic Curve DSA and DH
Information
This library is an actively maintained fork of Thomas Kerin's phpecc library, which is a rewrite/update of Matyas Danter's ECC library. All credit goes to them.
For more information on Elliptic Curve Cryptography please read this fine article.
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
This package is released under the MIT license.
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
You can install this library via Composer :
composer require shanecurran/phpecc
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.
Requiresphp Version
^7.0||^8.0 ext-gmp Version
* fgrosse/phpasn1 Version
^2.0
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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