Blog
All news
On our blog you will find both substantive articles and news. There will also be case studies described in detail.
Blockchain a way to secure data
4.05.2017
Over the past months I have discussed various cryptographic techniques. Now it's time to show their interesting applications in practice. I already revealed…
Digital signature
24.04.2017
One of the authentication mechanisms I described earlier are message authentication codes called MACs for short. It is now time to present another type…
A few words about stakeholders
6.04.2017
> "Find the right balance of competing claims of different stakeholder groups. All claims deserve attention, but some are more important than others."
>
>…
In search of lost quality
14.03.2017
"Quality is a certain degree of excellence."
With these words --- taken from Plato --- I would like to start a new series of publications introducing…
Modes of operation of block ciphers
6.03.2017
*Symmetric block ciphers* encrypt messages of a specific length that is specific to the chosen algorithm (e.g. 16 bytes for the AES algorithm, 8 bytes…
Aligning DevOps transformation with organizational culture
2.03.2017
The dominant organizational culture model for DevOps is the one described in the '2016 State of DevOps Report', created by Westrum. I would like to propose…
Data encryption
16.01.2017
So far, I have dealt with the implementation of integrity and authentication services for uploaded data. It is high time to deal with secrecy, that is,…
Funding for KFS training in 2017
12.01.2017
The National Training Fund (KFS) is a form of financial support through which it is possible to subsidize training for employees and employers. In order…
Surprising situations during training
9.12.2016
Anything can happen during training. Nevertheless, the trainer should not assume in advance that it will be something unpleasant and stressful. Most of…
Message authentication
8.11.2016
In a previous post on integrity, there was the problem of checking whether a message came from the original source. In other words, whether it was sent…
Shorten, or integrity in practice
4.10.2016
Integrity (integrity) service is one of the four basic services of information protection. It performs the function of ensuring that the processed information…
Application architecture on the Android platform
26.09.2016
Why does architecture matter? An application's architecture defines its individual components, the functions they perform, and the relationships between…