WolfSSL
wolfSSL is an open source SSL/TLS library that is lightweight, portable, and provides encryption and authentication for applications. It supports common cipher suites and protocols, and has a small code footprint suitable for embedded systems.
ssl
tls
cryptography
encryption
security
wolfSSL: Lightweight Open Source SSL/TLS Library
wolfSSL is an open source SSL/TLS library that supports common cipher suites and protocols, providing lightweight encryption and authentication for applications.
What is WolfSSL?
wolfSSL (formerly CyaSSL) is an open source SSL/TLS library targeted at embedded and RTOS environments, focusing on being lightweight, portable, and resource-efficient. Some key features of wolfSSL include:
- Supports TLS 1.3, TLS 1.2, SSL 3.0, and SSL 2 compatibility modes
- Implements cipher suites including AES, SHA2, ECC, RSA, and more
- Small footprint, configurable to use less than 20kB RAM and under 100kB code space
- Portable across many platforms like Linux, Windows, MacOS, iOS, Android, real-time OSes, and microcontrollers
- Written in C for ease of integration and optimization for embedded use cases
- Commercial support available from wolfSSL Inc. including PSE certifications
- BSD-style license allows free use even in proprietary applications
wolfSSL is used to add transport layer security to protect communications and authenticity in many IoT devices and embedded systems across various industries like medical, automation, networking, and automotive by companies like Cisco, HP, IBM, Intel, and more.
WolfSSL Features
Features
- Lightweight SSL/TLS implementation
- Supports common cipher suites like AES, RSA, ECC, SHA2, etc
- Works across platforms like embedded systems, desktops, mobile
- Provides encryption, authentication, and certificate management
- Integration with popular web servers like Nginx and Apache
- Support for TLS 1.3 and other latest protocols
- Written in C for better performance and small footprint
- Support for session resumption and caching for efficiency
- Can be used with or without an OS layer
Pricing
- Open Source
- Free
Pros
Lightweight and fast performance
Small code footprint suitable for embedded use
Portable across many platforms and architectures
Open source and free to use
Supports latest TLS versions and cipher suites
Easy to integrate and use in existing apps
Good for constrained environments like IoT
Customizable build options
Cons
Lacks some advanced TLS features compared to OpenSSL
Limited support for older platforms and compilers
Smaller community than more popular SSL libraries
Not as extensively battle-tested as older options
Lacks bindings for some languages
Official Links
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