Wolfssl

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wolfSSL is an open-source backend & APIs tool that provides a small, fast, and portable implementation of TLS/SSL. It supports up to TLS 1.3 and DTLS 1.3, ideal for embedded devices and cloud applications.

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At a glance

Pricing

Open Source

Free tier

Yes

API

Yes

Skill level

Technical

About

What is wolfssl?

wolfSSL is a lightweight, open-source SSL/TLS library written in ANSI C, specifically designed for embedded, RTOS, and resource-constrained environments due to its small size, speed, and comprehensive feature set. It supports industry standards up to TLS 1.3 and DTLS 1.3, and is significantly smaller than OpenSSL. The library includes progressive ciphers like ChaCha20 and Curve25519, and is powered by the wolfCrypt cryptography library, which has achieved FIPS 140-2 and 140-3 validation. wolfSSL offers royalty-free pricing and excellent cross-platform support, making it suitable for various operating environments beyond just embedded systems.

Best used for

Ideal for developers who need to implement robust and secure TLS/SSL communication in embedded systems, resource-constrained devices, and cloud applications. Especially valuable for projects requiring FIPS-validated cryptography, a small memory footprint, and compatibility with OpenSSL APIs for easier migration.

Common actions

secure communications

implement TLS/SSL

encrypt data

ensure data integrity

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Capabilities

Key features

TLS 1.3/DTLS 1.3 support
Small footprint
FIPS 140-3 validated cryptography
OpenSSL compatibility API
Hardware-accelerated AES

Target Audience

developer

Integrations

Not yet documented

Pricing & Plans

Open Source

Free

FAQs

What are the key advantages of wolfSSL over OpenSSL?

wolfSSL is significantly smaller (up to 20 times) than OpenSSL, making it ideal for embedded and resource-constrained environments. It also offers royalty-free pricing and includes progressive ciphers, while maintaining an OpenSSL compatibility API to ease integration into existing projects.

Does wolfSSL support the latest TLS standards?

Yes, wolfSSL supports the latest industry standards, including TLS 1.3 and DTLS 1.3. It continuously updates to incorporate new features and security enhancements, ensuring modern and secure communication protocols for various applications.

Is wolfSSL's cryptography FIPS validated?

Yes, the wolfCrypt cryptography library, which powers wolfSSL, has achieved FIPS 140-2 validation (Certificate #2425 and #3389) and FIPS 140-3 validation (Certificate #4718). This ensures a high level of security and compliance for sensitive applications.

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