Certificate Revocation refers to the act of canceling a signed certificate before its expiration date. This can be done due to private key compromise, retirement of a service, or various administrative reasons. There are many different approaches …
Both Encryption and Hashing are fundamental building blocks of cryptosystems. When it comes to best practices for storing credentials in your application however, best practice is largely driven by what you’re trying to do. There are a lot of …
When a piece of server software wants to make itself available to clients via the network, it binds to a socket. A socket is simply the IP address and port combination the server software listens on for connections. (Most commonly server software …
A lot can be learned about SSL/TLS by analyzing real-world bugs and the ways in which vendors patch them. This past week OpenSSL 1.1.1k was released, which corrected two high severity bugs in the popular OpenSSL software. Specifically, CVE-2021-3450 …
Next to encryption, hashing is perhaps the most important building block of modern cryptosystems. But what is a hash? Why is it important? How can some ways of computing a hash be better than others, and what makes a particular method suitable for …
It is a peculiar thing to see, but more and more commonly terms of art make their way into the mainstream media. It seems that every week a new article about a vulnerability, cyberattack, or data breach makes its way into public discourse. One …
A distributed-denial-of-service (DDOS) attack occurs when a service provider is intentionally overwhelmed at the network layer by a large volume of requests. These requests might consist of normal traffic occurring at a massive scale, or it might …
Chances are that you’ve used a captive portal – possibly without knowing it! Captive Portals are a legitimate means of grabbing the users attention
Let’s Encrypt is a fairly popular service offering free SSL/TLS certificates to those who are uninterested in the value-add of traditional certificate resellers. Historically, this CA has partnered with IdenTrust to provide this service as it has …
One of the biggest threats to any organisation today is a ransomware attack. Bad actors, through the use of purpose-built software, infiltrate a computer network and take data hostage. This kind of attack can affect companies big and small, in every …