Message Authentication

Cryptographic Message Authentication explained in details. Suitable for Beginners with Java examples...

March 29, 2016 · 6 min · Alexander Holbreich

Symmetric-key cryptography

Symmetric Cryptography explained in details. Suitable for Beginners with code examples...

March 17, 2016 · 11 min · Alexander Holbreich

Cryptographic Hash Functions

Introduction to Cryptographic Hash Functions. Suitable for Beginners. Examples included...

March 16, 2016 · 3 min · Alexander Holbreich

Cryptography basics

Cryptography basics explain. Good Read for beginners...

March 16, 2016 · 3 min · Alexander Holbreich

How to do SSH tunnels

SSH (Secure Shell) allows simple establishment of an encrypted and authenticated connection between computers. In this article I will focus on establishing SSH tunnels without using a password by using asynchronous key pair. This approach is especially very useful in machine-to-machine communication. The idea grounds on asymmetric cryptography, that describes a concept of a key -pair of a private and public keys. In this article it’s sufficient to know, that:...

February 8, 2010 · 3 min · Alexander Holbreich

Wordpress 2.3.3 fixes XML-RPC bug

Please upgrade your Wordpress blog as sun as possible to the released version 2.3.3, because there are security reasons for it. Further check the content of your posts in the code perspective, because maybe it was changed by some intruders, which have possibly used XML-RCP Bug in the Wordpress version 2.3.2. … A flaw was found in our XML-RPC implementation such that a specially crafted request would allow any valid user to edit posts of any other user on that blog....

February 5, 2008 · 2 min · Alexander Holbreich