OpenSSL is described as 'Framework which implements the secure socket layer. It ships with a program/library which gives you access to all those functions' and is an app in the security & privacy category. There are more than 10 alternatives to OpenSSL for a variety of platforms, including Windows, Linux, Mac, Android and iPhone apps. The best OpenSSL alternative is LibreSSL, which is both free and Open Source. Other great apps like OpenSSL are mbed TLS, GnuTLS, Network Security Services and wolfSSL.
LibreSSL is a version of the TLS/crypto stack forked from OpenSSL in 2014, with goals of modernizing the codebase, improving security, and applying best practice development processes.
LibreSSL is the most popular Windows, Mac & Linux alternative to OpenSSL.
LibreSSL is the most popular Open Source & free alternative to OpenSSL.
Mbed TLS (formerly known as PolarSSL) makes it trivially easy for developers to include cryptographic and SSL/TLS capabilities in their (embedded) products, facilitating this functionality with a minimal coding footprint.
mbed TLS is the most popular Android alternative to OpenSSL.
GnuTLS (the GNU Transport Layer Security Library) is a free software implementation of the SSL, TLS and DTLS protocols. It offers an application programming interface (API) for applications to enable secure communication over their network transport layer, as well as interfaces...
Network Security Services (NSS) comprises a set of libraries designed to support cross-platform development of security-enabled client and server applications with an option support for hardware SSL acceleration on the server side and hardware smart cards on the client side.
wolfSSL (formerly CyaSSL) is a small, fast, portable implementation of TLS/SSL for embedded devices to the cloud. http://www.wolfssl.com.
wolfSSL is the most popular iPhone, iPad & Android Tablet alternative to OpenSSL.
Software components for Data Protection, Secure Storage, and Secure Transfer. Trusted in high security, mission-critical applications for decades.
SecureBlackbox® is the most popular commercial alternative to OpenSSL.
The SSL/TLS and Certificate tutorial for Windows enables you to fast track your understanding of the SSL/TLS protocol, Certificate Management, and secure communication. The download includes many C source code examples, including a secure WebSocket tutorial.
According to the description here, SharkSSL is a tutorial about SSL, not an SSL implementation . Either the description is wrong or it has been put on the wrong list .
Themis is a cryptolibrary, providing high-quality security services for secure messaging and encrypted storage. Themis is aimed at modern development practices, with wrappers for Ruby, Python, PHP, Java / Android and iOS / OSX.
Using certificates from real certificate authorities (CAs) for development can be dangerous or impossible (for hosts like example.test, localhost or 127.0.0.1), but self-signed certificates cause trust errors.
Ciphey aims to be a tool to automate a lot of decryptions & decoding's such as multiple base encodings, classical ciphers, hashes or more advanced cryptography. Automatically decrypt encryptions without knowing the key or cipher, decode encodings, and crack...
This is a document about OpenSSL, not an alternative .
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Cleaned up. Removed crap like SSL, SHA-0 and many other things.