poniedziałek, 10 kwietnia 2017

SeniorITy Code powered by Sii - Embedded

Two weeks ago I participated in meeting where shortly were preseted different security aspects of the embedded systems.

First talk was a introducion into C++11 for beginners. Next two were about safety and security of embeddes systems. Part about safety was focused on developing standards for increase of a quality of the final system (eg. restrictions in memory management).

Last part was the most interesting in my opinion. Many methods of systems analysis were metioned - including copying of the architecture techniques. It is a real problem when it is that simple to reconstruct the net list from photos of a circuit using tools like degate. To watch how the device is working there are methods called side channel attacks. Attacker can observe properties such as power usage, processing time, temperature or electro magnetic emissions to get knowledge about computations inside a chip. Other kind of attacks are state modifications. Using laser beam it is possible to change memory registers (but not single bit) which can be used to introduce changes in the code execution. Other methods are: overheating what leads to skiping instructions in some processors or changing voltage level to change signal interpretation (high/low state).

Links:
Sri Parameswaran, Tilman Wolf - Embedded systems security—an overview

1 komentarz:

  1. My husband and I have been having lots of problems living together, he never gives me attention or makes me happy because he has fallen in love with another woman outside our marriage. I tried my best to make sure that my husband leaves this woman but the more I talk to him about it the more he makes me feel sad and unhappy, My marriage started leading to divorce because he no longer gives me attention. I wanted to forget him but i love him and didn't want to lose him. We have been married for years and he is all I could call a true best friend and best in all, the man that handles my problems perfectly, the man that makes sacrifices for ,my happiness. I wanted him back in my life badly and I was so confused. My Friends told me to buy books about relationships, so I went online for relationship books while I came across a spell caster called Dr Emu. I read testimonies and reviews about him so I contacted him immediately, explained my problems to him. Same day , he casted a spell for me and assured me for 2 days that my husband will return to me and to my greatest surprise the third day my husband came knocking on my door and begged for forgiveness. I am so happy that my love is back again and not only that, we are about to get married again, he proposed. I wouldn't stop talking about him. Contact him today if you need his help via email: emutemple@gmail.com and you will see that your problem will be solved without any delay. Website: https://emutemple.wordpress.com/

    OdpowiedzUsuń