RECENT BLOG NEWS

The wolfSSL library includes a useful tool for sniffing TLS traffic. This can be used to capture and decrypt live or recorded PCAP traces when at least one of the keys is known. Typically a static RSA ciphersuite would be used, however with TLS v1.3 only Perfect Forward Secrecy (PFS) ciphers are allowed. For TLS […]

The wolfSSL embedded SSL/TLS library supports many popular hardware secure elements from several suppliers using different technologies. Some of these hardware elements are specifically designed to enable end-to-end security in IoT devices, by providing a hardware ‘Root of Trust’, and by providing asynchronous cryptography functionality and key vaults. GSMA is an alliance representing mobile operators, […]

ExpressVPN’s Lightway protocol is out of beta and leverages wolfSSL for secure crypto. As such, the “modern VPN” inherits speed, performance, best-tested security and is able to maintain it’s lightweight mobility. “In terms of the encryption, [ExpressVPN’s Chief Architect, Pete] Membrey explained that Lightway uses wolfSSL. ‘To be clear, we didn’t roll any of our […]

A block cipher is an encryption method that applies a deterministic algorithm along with a symmetric key to encrypt a block of text, rather than encrypting one bit at a time as in stream ciphers. For example, a common block cipher, AES (Advanced Encryption Standard), encrypts 128 bit blocks with a key of predetermined length: 128, […]

A stream cipher encrypts plaintext messages by applying an encryption algorithm with a pseudorandom cipher digit stream (keystream). Each bit of the message is encrypted one by one with the corresponding keystream digit. Stream ciphers are typically used in cases where speed and simplicity are both requirements. If a 128 bit block cipher (such as […]

As some may be aware, wolfSSL added support for strongSwan in April of 2019. The upstream commit can be reviewed here: https://github.com/strongswan/strongswan/pull/133 Users can test the latest development master of wolfSSL with the latest version of strongSwan using the following setup: wolfSSL Build and Installation Steps $ git clone https://github.com/wolfSSL/wolfssl.git $ cd wolfssl $ ./autogen.sh […]

Microsoft’s IoT Developer Advocate, Dave Glover, has put together an Azure Sphere Cloud example that uses the wolfMQTT client library and wolfSSL’s Embedded TLS library to demonstrate a secure IoT device connection using the Altair 8800 emulation project. Find the project here and read more about Dave’s effort to get the Altair emulation connected to the […]

The wolfSSL embedded SSL/TLS library has support for PKCS#7 and you can use the wolfSSL Examples GitHub repository to take that functionality for a quick spin. PKCS #7: Cryptographic Message Syntax (CMS) is used to sign, encrypt, or decrypt messages under Public Key Infrastructure (PKI). Using the wolfSSL API to do all of the above […]

We are excited to tell you about our partner collaboration with STMicroelectronics! This collaboration is a video series about wolfBoot, a secure bootloader and the STM32, a family of 32-bit microcontrollers. This will be at least a 4 part video series with the first two already up and ready and the next two videos already […]

At wolfSSL, we pride ourselves on offering the Best-Tested SSL/TLS library on the market. We’re able to do so by conducting regular, diligent, and well-planned testing to maintain a robust and secure library. wolfSSL knows that it is impossible to test every single possible path through the software, but opts to practice an approach that […]