Openssl Download

118,034 downloadsUpdated: March 26, 2021Apache License 2.0 / Donationware

In the following article i am showing how to export the SSL certificate from a server (site URL) using Google Chrome, Mozilla Firefox and Internet Explorer browsers as well as how to get SSL certificate from the command line, using openssl command. Cool Tip: Create a self-signed SSL Certificate! Read more → Export SSL Certificate Google Chrome. Deprecated OpenSSL.crypto.loadspkcs7 and OpenSSL.crypto.loadspkcs12. Changes: Added a new optional chain parameter to OpenSSL.crypto.X509StoreContext where additional untrusted certificates can be specified to help chain building.

Openssl Download

Embed SSL and TLS support into your projects to enhance security with the help of this lightweight cryptography library, which comprises various encryption algorithms

What's new in OpenSSL 1.1.1k:

  • OpenSSL 1.1.1k is now available, including bug and security fixes
Read the full changelog

OpenSSL is a development tool designed to implement the SSL and TLS cryptographic protocols in your projects. The library is developed as open source and can be used on multiple operating systems in order to secure the data transferred over the Internet.

Secure your Internet data transfers

The TLS and SSL protocols are widely used to secure the Internet communication by using data encryption and complex authentication keys in order to ensure the confidentiality of sensitive messages.

OpenSSL aims to provide you with a reliable way to encrypt your data and generate the security keys required to safely transfer the information over the Internet. The main library is developed in C and includes a command line tool that provides access to all the available algorithms and ciphers.

Supports various encryption algorithms

The list of encryption algorithms is extensive and you can use the console to generate personal keys and certificates with Blowfish, MD5, SHA-1, DES or AES. The library also supports public-key cryptography algorithms such as RSA, DSA, and the Diffie–Hellman key exchange method.

Although the download package does not include a documentation, the online resources are extensive and provide you with details about implementing the algorithms. You can also bring your own contribution to the project as a part of the open source community.

The tools included in the package can only be used in the console which might be difficult for the users that are accustomed to graphical interfaces. Moreover, using the library requires solid knowledge about encryption algorithms and cryptography standards.

To end with

However, OpenSSL is a useful tool for generating and managing private keys, public keys or certificates for a large variety of projects.

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OpenSSLOpenssl 1.0.2 download was reviewed by Sorin Cirneala
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OpenSSL 1.1.1k

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1 screenshot:
runs on:
Windows 10 32/64 bit
Windows 8 32/64 bit
Windows 7 32/64 bit
Windows Vista 32/64 bit
Windows XP 32/64 bit
file size:
55.1 MB
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OpenSSL is a robust, commercial-grade, and full-featured toolkit for the Transport Layer Security (TLS) and Secure Sockets Layer (SSL) protocols. It is also a general-purpose cryptography library. For more information about the team and community around the project, or to start making your own contributions, start with the community page. To get the latest news, download the source, and so on, please see the sidebar or the buttons at the top of every page.

OpenSSL is licensed under an Apache-style license, which basically means that you are free to get and use it for commercial and non-commercial purposes subject to some simple license conditions.

For a list of vulnerabilities, and the releases in which they were found and fixes, see our Vulnerabilities page.

Latest News

06-May-2021Alpha 16 of OpenSSL 3.0 is now available: please download and test it
22-Apr-2021Alpha 15 of OpenSSL 3.0 is now available: please download and test it
08-Apr-2021Alpha 14 of OpenSSL 3.0 is now available: please download and test it
25-Mar-2021OpenSSL 1.1.1k is now available, including bug and security fixes
11-Mar-2021Alpha 13 of OpenSSL 3.0 is now available: please download and test it

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Please remember that export/import and/or use of strongcryptography software, providing cryptography hooks, or even justcommunicating technical details about cryptography software isillegal in some parts of the world. So when you import thispackage to your country, re-distribute it from there or evenjust email technical suggestions or even source patches to theauthors or other people you are strongly advised to pay closeattention to any laws or regulations which apply toyou. The authors of OpenSSL are not liable for any violationsyou make here. So be careful, it is your responsibility.