RECENT BLOG NEWS

The Radio Equipment Directive (RED) 2014/53/EU establishes the regulatory framework for placing radio equipment on the European market. Its goal is to create a unified market while ensuring essential requirements for safety, electromagnetic compatibility, efficient use of the radio spectrum, and more recently cybersecurity and data protection. To strengthen protections, the European Commission activated Articles […]

In wolfCrypt and wolfPKCS11 we added support for using a Derived Hardware Unique Key (DHUK) for AES with the STM32U5. This feature enables use of a device unique AES key (up to 256-bit) available for encryption/decryption. The key cannot be read from the hardware, which makes it great to wrap other symmetric keys for storage […]

Recent commits to wolfSSL have enabled support to decode new CMS/PKCS#7 message types. The CMS message type EncryptedKeyPackage (defined in RFC 6032) can be decoded with the new API wc_PKCS7_DecodeEncryptedKeyPackage(). The CMS message types SymmetricKeyPackage and OneSymmetricKey (defined in RFC 6031) can be decoded with the new APIs wc_PKCS7_DecodeSymmetricKeyPackageAttribute(), wc_PKCS7_DecodeSymmetricKeyPackageKey(), wc_PKCS7_DecodeOneSymmetricKeyAttribute(), and wc_PKCS7_DecodeOneSymmetricKeyKey(). If you […]

Previous wolfSSL versions required X.963 KDF support and AES keywrap functionality to be enabled in order to build CMS/PKCS#7 decode support. Recent changes to wolfSSL have allowed CMS/PKCS#7 decode support to be built without either of these requirements. Previously, if the user desired to have the HAVE_PKCS7 build option defined, then the HAVE_X963_KDF and HAVE_AES_KEYWRAP […]

Some recent pull requests have been merged to the wolfssl repository to allow wolfcrypt to avoid MISRA warnings for certain MISRA 2023 rules. For example, MISRA rule 3.1 disallows nested comment leaders (e.g. a “//” sequence within a “/* … */” comment block). These have been removed. Also, MISRA rule 8.2 requires function prototypes to […]

The latest updates to the Espressif-specific integration of wolfSSL bring a significant enhancement for developers working on memory-constrained embedded systems: support for using PSRAM (pseudo-static RAM) during wolfSSL heap operations. This improvement not only unlocks larger memory capacity for cryptographic operations, but also lays the foundation for more stable and scalable TLS communication on ESP32 […]

We’re excited to announce that wolfSSL v5.8.2 is now officially released and available through The ESP Component Registry! wolfSSL is a lightweight, high-performance TLS/SSL library optimized for embedded systems. It is widely used in IoT, automotive, aerospace, and other resource-constrained environments. What’s New in v5.8.2: Security Enhancements: Multiple updates for improved cryptographic robustness and protocol […]