As discussed above, IPsec delivers data confidentiality services by executing a transform on plain text data. Common ciphers used in the IPsec transform are DES, 3DES, and AES. All of these transforms ...

VPN (Virtual Private Network) is a technology that provides secure communication through an insecure and untrusted network (like the Internet). Usually, it achieves this by authentication, encryption, ...

As digital networks grow in complexity, securing data in transit has become a top priority. Cyber threats, ranging from man-in-the-middle attacks to large-scale data breaches, make strong encryption ...

The attack targets IKE’s handshake implementation used for IPsec-based VPN connections, opening the door for MiTM attacks or for bad actors to access data carried in VPN sessions. A new Bleichenbacher ...

“The work is done, but how no one can see; ’Tis this that makes the power not cease to be.” —Lao Tzu, Tao Te Ching When I travel, I have to leave my friend Jane, the 13-year-old Boxer, behind. So when ...

Previous articles (Part one, Part two) in this series on implementing VPN gateways using Cisco routers discussed the IPsec protocol and basic IPsec VPN connection models. Now we'll learn how to ...

If you are serious about computer/network security, then you must have a solid understanding of authentication methods. Debra Littlejohn Shinder takes a moment to lay out the role authentication plays ...

Cisco says that a new authentication bypass flaw affecting multiple small business VPN routers will not be patched because the devices have reached end-of-life (EoL). This zero-day bug (CVE-2022-20923 ...