Public key cryptography is based on asymmetric encryption, which uses two keys. One key is used for encryption, the other for decryption, which is a fundamental difference compared to symmetric encryption, which uses only one secret key to encrypt, as well as decrypt.
Symmetric ciphers use the same secret key to encrypt and decrypt, and their security is based on confidentiality of this key. We can divide symmetric ciphers into block symmetric ciphers and stream symmetric ciphers.
In SOS electronic, we got the opportunity to cooperate with prof. Ing. Dušan Levický, CSc., who published the book Applied Cryptography this year. We were so absorbed by some of the information in this book that we have decided to publish them in our set of articles. Are you courageous enough to embark on the secrets of encryption?
Same like every year, we have prepared something special for you for Christmas. It was an interactive Christmas tree. How was this idea created? Read it directly from its author.
Team of students from Grammar School at Poštova Street in Košice, Columba Racing, got to Abu Dhabi thanks to their activity and effort. SOS electronic has already been sponsoring this enthusiastic team for few years.
In 1997, we decided to create our own SOS electronic web thus we registered our first own domain. You count well, it is 20 years already.
The newest issue of SOSnews 2/2017 is already in electronic form on our website. Please take a look.
For few months, there has been some information on the negative situation, so-called allocation.
I’m sure you’ve heard those magic words. What is Industry 4.0? And how it’s going to affect me or my company?
Do we really need to think about changing our work processes or even mass reorganizational changes in company? Or is it just a “trendy” word with nothing but technological marketing behind it and we are good to ignore it?
What are the wireless data transmission options in IoT? What are the advantages and disadvantages of particular interfaces?
