CyaSSL is an embedded SSL implementation (up to TLS 1.2 and DTLS) for software developers building security functionality into their applications and devices. It is optimized for resource-constrained environments and can be up to 20x smaller than OpenSSL.
CyaSSL is ported to a long list of environments, including Win/Linux/Mac, Solaris, ThreadX, VxWorks, FreeBSD, NetBSD, OpenBSD, embedded Linux, WinCE, Haiku, OpenWRT, iOS, Android, Nintendo Wii and Gamecube through DevKitPro, QNX, MontaVista, OpenCL, NonStop, TRON/ITRON/µITRON, µC/OS, FreeRTOS, MQX, and Nucleus. Supported chipsets include ARM, Intel, Motorola and others.
CyaSSL cryptography includes assembly optimizations for several environments, including ARM, AVR 32, and Intel (with support for Intel AES-NI).