SSL versus TLS TLS (Transport Layer Security) and SSL (Secure Sockets Layer) are protocols that provide data encryption and authentication between applications and servers when that data is sent across an insecure network. The terms SSL and TLS are often used interchangeably or in conjunction with each other (TLS/SSL), but one is, in fact, the […]
We’ll close (for now) our three part series on the state of domain-based authentication for emails by completing the story on technologies being deployed or defined to improve the security of the email ecosystem. In Part 1, we wrote about using Sender Policy Framework (SPF) and DomainKeys Identified Mail (DKIM) to authenticate the sending mail […]
We’ve written quite a lot in past FYI Blog posts about SSL/TLS certificates, the critical building block to secure communication on the Internet. We described what such certificates were, their use in securing the communications channel between a client (browser) and a server, different types of certificates and the pros and cons of using each. […]
This question came in via Ask Erik: Hi Erik, I stumbled upon your blog while trying to learn a little about SSL/TLS in the context of client/server e-mail sessions, i.e. not web mail which I understand to be an HTTP session. I am just an ordinary user with no special security needs but I find […]
SSL (Secure Sockets Layer) and TLS (Transport Layer Security) are foundations of security on the Internet. However, between colloquial usage and the relationship between these security protocols, there is a lot of confusion regarding how they are related, how they are different, and what to use in what situation. For a detailed analysis of these […]
