On Zephyr, which is best for you? GRPC or MQTT You might be wondering if MQTT or GRPC would be best for your use case. Here are 3 questions you might want to ask yourself: Do you have a request-response use case? For example, are you asking for the temperature and then sending a command […]
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TLS vs. SSH: When To Use Which (2026 Edition)
TLS and SSH are both widely used protocols for creating secure connections between two systems over an untrusted network. Although they share some fundamental goals, they are designed for different use cases. In this updated guide, we will explore when you should use which, along with a look at the latest developments in both protocols. […]
Read MoreMore TagA Second Helping of Security for the Raspberry Pi Pico
Last year, we wrote about the support we added for the Raspberry Pi Pico in wolfSSL. Since then, we haven’t been sitting idle. The wolf pack has been busy adding even more security goodness to the Pico ecosystem. If you thought TLS on a $1 microcontroller was impressive, wait until you see what we’ve been […]
Read MoreMore Tagcurl up 2026 Registration Closing Soon — Join Us in Prague
Spend a weekend with the people behind curl! Join us for curl up 2026, a highly interactive meetup for developers, users, and contributors of curl. Meet in Prague with the engineers behind curl to discuss real-world use, current challenges, and what’s coming next. May 23-24 | Prague, Czechia What is curl up? curl up is […]
Read MoreMore TagPost-Quantum Cryptography Is Coming to wolfTPM
ML-DSA and ML-KEM Support for TPM 2.0 Library Specification v1.85 Quantum-Safe TPM Operations Are on the Way wolfSSL is excited to announce that post-quantum cryptography (PQC) support is coming to wolfTPM. wolfTPM will be among the first TPM 2.0 libraries to implement the newly-published TCG TPM 2.0 Library Specification v1.85, which adds the NIST-standardized post-quantum […]
Read MoreMore TagwolfTPM Firmware TPM (fwTPM) Post-Quantum Release: Portable Software TPM 2.0 with ML-DSA and ML-KEM Support
Post-Quantum Firmware TPM Is Here wolfTPM’s firmware TPM (fwTPM) is available with post-quantum cryptography support added through the TCG TPM 2.0 Library Specification v1.85. fwTPM is wolfSSL’s portable software TPM 2.0 implementation, built on wolfCrypt and intended for products that need a TPM 2.0 interface without a discrete TPM chip. The post-quantum work merged in […]
Read MoreMore TagRSA-PSS Support for PKCS#7 SignedData in wolfSSL
PKCS#7, standardized as Cryptographic Message Syntax (CMS) in RFC 5652, is a common format for signing structured data. Signed firmware updates, signed configuration packages, and certificate-based authentication workflows all rely on PKCS#7 SignedData to ensure integrity and authenticity.wolfSSL now supports RSA-PSS (RSASSA-PSS) signatures in PKCS#7 SignedData, for both generation and verification. This lets applications move […]
Read MoreMore TagTPM 2.0 Sealing Policies with wolfTPM: PCR Policies, Policy Authorize, and NV Storage for TPM 2.0 Secrets
Background: TPM 2.0 Sealing and PCR Policies TPM 2.0 sealing binds a secret to a set of Platform Configuration Register (PCR) values. The TPM will only release the secret when the current PCR state matches what was recorded at seal time. This is the foundation for measured boot, disk encryption key protection, and platform attestation. […]
Read MoreMore TagBringing wolfHSM to STM32H5 TrustZone: Production-Grade HSM on a Cortex-M33
From Automotive HSM to IoT When most people hear about Hardware Security Modules, they tend to think of the automotive industry. wolfHSM has spent years proving itself on Infineon AURIX TC3xx, ST SPC58, and similar high-end automotive parts, where a dedicated HSM core stands guard over keys, signing, and secure boot inside vehicles shipping at […]
Read MoreMore TagThe First Firmware TPM with Post-Quantum Cryptography
ML-DSA and ML-KEM for Software TPM 2.0 on Embedded Targets A First in Embedded Security: Post-Quantum Firmware TPM wolfSSL is excited to announce that our firmware TPM (fPM), a software TPM 2.0 implementation built on wolfCrypt, will be among the first firmware TPMs with post-quantum cryptography support, implementing the new TCG TPM 2.0 Library Specification […]
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