Developer(s) Todd Ouska Written in C language | Development status Active Operating system | |
Initial release February 19, 2006 (2006-02-19) Stable release 3.10.2 (February 10, 2017; 53 days ago (2017-02-10)) [±] | ||
wolfSSL (formerly CyaSSL or yet another SSL) is a small, portable, embedded SSL/TLS library targeted for use by embedded systems developers. It is an open source implementation of TLS (SSL 3.0, TLS 1.0, 1.1, 1.2, and DTLS 1.0 and 1.2) written in the C language. It includes SSL/TLS client libraries and an SSL/TLS server implementation as well as support for multiple API's, including those defined by SSL and TLS. wolfSSL also includes an OpenSSL compatibility interface with the most commonly used OpenSSL functions.
Contents
- Platforms
- History
- Protocols
- Algorithms
- wolfCrypt
- NTRU
- SGX
- Hardware Acceleration Platforms Supported
- Licensing
- Awards
- References
A predecessor of wolfSSL, yaSSL is a C++ based SSL library for embedded environments and real time operating systems with constrained resources.
Platforms
wolfSSL is currently available for Win32/64, Linux, macOS, Solaris, Threadx, VxWorks, FreeBSD, NetBSD, OpenBSD, embedded Linux, WinCE, Haiku, OpenWrt, iPhone, Android, Nintendo Wii and Gamecube through DevKitPro support, QNX, MontaVista, Tron variants, NonStop, OpenCL, Micrium's MicroC/OS-II, FreeRTOS, SafeRTOS, Freescale MQX, Nucleus, TinyOS, TI-RTOS, HP-UX, uTasker, and embOS.
History
The genesis of yaSSL, or yet another SSL, dates to 2004. OpenSSL was available at the time, and was dual licensed under the OpenSSL License and the SSLeay license. yaSSL, alternatively, was developed and dual-licensed under both a commercial license and the GPL. yaSSL offered a more modern API, commercial style developer support and was complete with an OpenSSL compatibility layer. The first major user of wolfSSL/CyaSSL/yaSSL was MySQL. Through bundling with MySQL, yaSSL has achieved extremely high distribution volumes in the millions.
Protocols
The wolfSSL lightweight SSL library implements the following protocols:
Protocol Notes:
Algorithms
wolfSSL uses the following cryptography libraries:
wolfCrypt
By default, wolfSSL uses the cryptographic services provided by wolfCrypt. wolfCrypt Provides RSA, ECC, DSS, Diffie–Hellman, EDH, NTRU, DES, Triple DES, AES (CBC, CTR, CCM, GCM), Camellia, IDEA, ARC4, HC-128, ChaCha20, MD2, MD4, MD5, SHA-1, SHA-2, BLAKE2, RIPEMD-160, Poly1305, Random Number Generation, Large Integer support, and base 16/64 encoding/decoding. An experimental cipher called Rabbit, a public domain software stream cipher from the EU's eSTREAM project, is also included. Rabbit is potentially useful to those encrypting streaming media in high performance, high demand environments.
wolfCrypt also includes support for the recent Curve25519 and Ed25519 algorithms.
wolfCrypt acts as a back-end crypto implementation for several popular software packages and libraries, including MIT Kerberos (where it can be enabled using a build option).
NTRU
CyaSSL+ includes NTRU public key encryption. The addition of NTRU in CyaSSL+ was a result of the partnership between yaSSL and Security Innovation. NTRU works well in mobile and embedded environments due to the reduced bit size needed to provide the same security as other public key systems. In addition, it's not known to be vulnerable to quantum attacks. Several cipher suites utilizing NTRU are available with CyaSSL+ including AES-256, RC4, and HC-128.
SGX
wolfSSL supports use of Intel SGX (Software Guard Extensions). Intel SGX allows for a smaller attack surface area and has been shown to provide a higher level of security for executing code without a significant negative impact on performance.
Hardware Acceleration Platforms Supported
Intel AES-NI (Xeon and Core processor families) AVX1/AVX2 (Intel and AMD x86) RDRAND (Intel 64, IA-32 architectures) RDSEED (Intel Broadwell, AMD Zen) Freescale Coldfire SEC (NXP MCF547X and MCF548X) Freescale Kinetis MMCAU K50, K60, K70 and K80 (ARM Cortex-M4 core) STMicroelectronics STM32 F1, F2, F4, L1, W Series (ARM Cortex - M3/M4) Cavium NITROX (III/V PX processors) Microchip PIC32 MX/MZ (Embedded Connectivity) Texas Instruments TM4C1294 (ARM Cortex-M4F) Nordic NRF51 (Series SoC family, 32-bit ARM Cortex M0 processor core) Microchip/Atmel ATECC508A (compatible with MPU or MCU) ARMv8 Intel QuickAssist Technology (Contact if interested) Freescale NXP LTCLicensing
wolfSSL is Open Source, licensed under the GNU General Public License GPLv2.
Awards
2011 Tomorrow's Technology Today - Mobile Encryption
2015 Cybersecurity 500 - wolfSSL
2016 Cybersecurity 500 - wolfSSL
2017 Cybersecurity 500 - wolfSSL