OpenSSL - OpenSSL is a free and open source software cryptography library that implements both the Secure Sockets Layer (SSL) and the Transport Layer Security (TLS) protocols, which are primarily used to provide secure communications between web browsers and …
Userify - Userify is a cloud-based SSH key management solution.
mbed TLS - mbed TLS . PolarSSL . Easy to use SSL library in C . Embedded . Open source . Readable source code . Tested . Well-documented ✓
Universal SSH Key Manager - Enterprise-grade access controls for your secure shell infrastructure.
GnuTLS - GnuTLS (the GNU Transport Layer Security Library) is a free software implementation of the SSL, TLS...
wolfSSL - wolfSSL (formerly CyaSSL) is a small, fast, portable implementation of TLS/SSL for embedded devices...