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 TagMonth: November 2015
wolfMQTT v0.3 and MQTT Secure Firmware Update Example
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 […]
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 […]
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