At wolfSSL, we prioritize strong, modern cryptographic practices—especially for embedded systems where performance, code size, and reliability are critical. While TLS continues to be the standard for securing communications, many early protocol versions have been broken or deprecated due to serious security flaws. Understanding the history of these attacks and their mitigations helps clarify why […]
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wolfSSL Advances FIPS Leadership with New Certificate #5041 and Evergreen FIPS 140 Strategy
EDMONDS, Wash., Aug. 4, 2025 /PRNewswire-PRWeb/ — wolfSSL Inc., a globally renowned leader in cryptography and network security solutions, announces the latest milestone in its FIPS strategy with the issuance of FIPS 140-3 Validated Certificate #5041 for the wolfCrypt cryptographic module. This marks yet another step forward in wolfSSL’s long-term strategy to deliver agile, secure, […]
Read MoreMore TagLMS Versus XMSS Versus SLH-DSA
Here at wolfSSL, we don’t just love coding! We love telling the world about what we code. To that end, we want you to understand the differences between LMS, XMSS, and SLH-DSA. Here are their official standard specifications: LMS (Leighton-Micali Hash-Based Signatures) XMSS (eXtended Merkle Signature Scheme) SLH-DSA (Stateless Hash-Based Digital Signature Standard) The most […]
Read MoreMore TagEmpowering Space Missions with NASA-STD-1006A Compliance
Space missions require strong security to guard against cyber threats. The wolfCrypt cryptography library meets all encryption requirements in NASA’s Space System Protection Standard (NASA-STD-1006A), providing lightweight cryptography suited for resource-constrained secure command communications. Understanding NASA-STD-1006A NASA-STD-1006A, titled “Space System Protection Requirements,” establishes agency-level guidelines to make NASA missions resilient against cyber threats. Approved in […]
Read MoreMore TagLive Webinar: Post-Quantum TLS 1.3 Over UART
Learn how to build an app for the STM32-U5 using TLS 1.3 over UART with a hybrid key exchange combining ECC and post-quantum ML-KEM! The STM32U5 series features advanced power-saving, high-performance microcontrollers based on the Arm® Cortex®-M33, designed for demanding applications that require both performance and low power consumption. It provides greater integration and memory […]
Read MoreMore TagUpdated Post-Quantum Benchmarks for ML-KEM and ML-DSA on STM32
A long, long time ago, we took some benchmarks for Kyber on STM32 NUCLEO-F446ZE. Back then, it was the NIST Submission of Kyber, and we were using the implementation from PQM4 as integration in wolfCrypt. Now, Kyber has evolved into ML-KEM, and we have our implementation! We decided to take some benchmarks on a newer […]
Read MoreMore TagOptimizing Post-Quantum Algorithm Memory Usage on Embedded Systems
Here at wolfSSL, we are intimately aware of the needs of our embedded customers. It is always about the tradeoffs and optimizations that fit their unique use cases and needs. The tradeoffs are typically between speed, footprint size, and memory usage. In many of our blog posts, we like to focus on our speed performance, […]
Read MoreMore TagwolfCrypt Examples for Renesas RH850
The RH850 Family of 32-bit automotive microcontrollers (MCUs) is an automotive microcontroller equipped with an integrated Hardware Security Module (HSM). It ensures fast and secure key management, cryptographic processing, and authentication at the hardware level. Designed for next-generation ECUs, it combines functional safety with advanced security. wolfSSL has now provided a wolfCrypt use case on […]
Read MoreMore TagMD5 Disabled by Default in wolfSSL: What You Need to Know
As part of our ongoing effort to deliver secure-by-default cryptography, wolfSSL has disabled the MD5 hash algorithm by default in the latest release. Don’t worry, it isn’t going away completely, but just disabled at compile time, by default. Why Disable MD5? MD5 has been considered cryptographically broken for many years due to known collision attacks. […]
Read MoreMore TagLive Webinar: How to Determine FIPS Compliance for Government Buyers
Cut through the confusion of FIPS 140-3 compliance and learn how to verify it with confidence. Join us on August 6th at 9 AM PT for a focused webinar presented by wolfSSL Senior Software Engineer Kaleb Himes. This session will break down the complexity of FIPS?140?3 compliance and help government buyers and contributors accurately evaluate […]
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