package

github.com/spider-gazelle/openssl_ext

2.8.5 / published Mar 11, 2026 / repository

Version:

Crystal bindings for OpenSSL RSA

openssl_ext

OpenSSL C Bindings for Crystal (and other extensions)

Installation

Add this to your application's shard.yml:

dependencies:
  openssl_ext:
    github: spider-gazelle/openssl_ext

Usage

require "openssl_ext"

See spec/rsa_spec.cr, spec/ec_spec.cr and spec/x509_spec.cr for usage in depth. The bindings closely follows the API for https://ruby-doc.org/stdlib-2.4.0/libdoc/openssl/rdoc/OpenSSL/PKey/RSA.html

Encoding with a passphrase is not yet supported as OpenSSL fails silently without any errors (in order to fix).

Contributors

cimrie Connor Imrie - creator, maintainer

API

OpenSSL
The OpenSSL module allows for access to Secure Sockets Layer (SSL) and Transport Layer Security (TLS) encryption, as well as classes for encrypting data, decrypting data, and computing hashes.
OpensslRsa