The wolfMQTT v0.3 release adds a new example for secure firmware update. This example uses the wolfSSL embedded SSL/TLS library to hash/sign the binary image and send it over MQTT. The example has two applications. One is called fwpush, which hashes, signs and publishes the firmware image over TLS to an MQTT broker. The second […]
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wolfSSL new wrappers for signature generation / verification and hashing
We’ve added some useful wrappers to the wolfSSL embedded SSL/TLS library for signature generation/verification and hashing. The signature wrappers support ECC and RSA. The hashing wrappers support MD5 and SHA, SHA256, SHA384 and SHA512. Documentation for these new wrapper functions is in the wolfCrypt API Reference – Signature API and wolfCrypt Init and Cleanup. New API […]
Read MoreMore TagWhat’s up with TLS 1.3?
We are receiving questions on TLS 1.3 with greater frequency during the last 6 months. This note is intended to answer those questions and make clear our positions on TLS 1.3, so here are our thoughts: 1. We intend to have an implementation of TLS 1.3 available when the specification goes final from the IETF. […]
Read MoreMore TagNew wolfMQTT Client Library
wolfSSL has released version 0.2 of the wolfMQTT client library. This addition to the wolfSSL product portfolio provides a Pub/Sub client for use in M2M and IoT. The wolfMQTT client library is written in C and was built from the ground up to be multi-platform, space conscience and extensible. Features– Built from scratch by wolfSSL engineers– Based on […]
Read MoreMore TagDigital Signature Algorithm (DSA) Support in wolfSSL
Did you know that the wolfSSL embedded SSL/TLS library has support for the Digital Signature Algorithm (DSA)? Many of us in security are familiar with Ron Rivest, Adi Shamir, and Leonard Adleman (RSA). DSA is a public key operation like RSA. When using keys of the same length RSA and DSA are considered to be […]
Read MoreMore TagChaCha20 and Poly1305 in wolfSSL
Have you heard about the recent ChaCha20-Poly1305 AEAD supported by wolfSSL embedded SSL/TLS and are wondering how secure it is? It`s comprised of two ciphers: ChaCha20 and Poly1305, designed to be constant time, making it naturally resistant to timing attacks. The AEAD is being used by many notable companies that also trust it for their […]
Read MoreMore TagwolfSSL Release 3.7.0
wolfSSL has a new release out, version 3.7.0. In this release we have added features and bug fixes to the wolfSSL embedded SSL/TLS library and further increased its ease of use on platforms in the realm of IoT, with the addition of a Rowley Crossworks example. Along with additions for Rowley there has been an […]
Read MoreMore TagMQTT with wolfSSL
MQTT (Message Queuing Telemetry Transport) is a light weight open messaging protocol that was developed for constrained environments such as M2M (Machine to Machine) and IoT (Internet of Things), where a small code footprint is required. MQTT is based on the Pub/Sub messaging principle of publishing messages and subscribing to topics. The protocol efficiently packs messages to keep the […]
Read MoreMore TagwolfSSL supports National Cyber Security Awareness Month
wolfSSL has become a Champion of National Cyber Security Awareness Month (NCSAM), joining a growing global effort among colleges and universities, businesses, government agencies, associations, nonprofit organizations and individuals to promote online safety awareness. Celebrated every October, National Cyber Security Awareness Month was created as a collaborative effort between government and industry to ensure everyone […]
Read MoreMore TagSHA-3 Algorithm Validation Testing
The SHA-3 Standard (FIPS PUB 202) is now included in Annex A: Approved Security Functions for FIPS PUB 140-2, Security Requirements for Cryptographic Modules. SHA-3 Hash Algorithms (SHA3-224, SHA3-256, SHA3-384, SHA3-512) and SHA-3 Extendable-Output Functions (XOF) (SHAKE128, SHAKE256) are FIPS Approved and may be implemented in a FIPS 140-2 cryptographic module. The SHA-3 functions are […]
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