Coding and Security of Networks - 4MMCSR6

Goal(s)

Pervasive use of interconnected computer systems and the diversity of threats on open networks have made the infrastructure security a major issue.
This course presents the main aspects to consider to build a distributed computing system running safely, even in open environment (ie in the presence of random errors and / or malicious attacks).
The focus is on:

• applied cryptology and coding technologies to ensure the integrity of communications, and their effective integration in telecommunication applications;
• applied security: the various attacks to consider and their defense countermeasures. Reading and understanding of recent research articles related to applied security will be discussed.

Content(s)

Part 1. Coding technologies for communications integrity :
1. Introduction: presentation of basic technologies in cryptology. Symetric encryption (OTP, AES). Asymetric encryption (ECDLP/El Gamal). One-way hash functions and pseudo-random generators.
2. Error detection in networks - CRC coders and decoders (LFSR circuits). Examples (Ethernet and GSM).
3. Error-correcting codes (interpolation). Reed-Solomon coding and decoding. Application.
4. Error bursts and interleaving. Applications: CIRC code for CDs and DVDs; RAID disk systems.
5. Application to correlation attacks. Example: Siegenthaler sur GSM.

Part 2 : Applied security and attacks
1. Web applications anc network security.
2. Key sharing and PKI architecures.
3. Overflows and Shellcode
4. Fuzzing of protocols
5. Research: advances in test of protocols security.

.

• Basic knowledges in Applied probabilities and numerical methods (linear algebra, arithmetics) (1A / L3),
• Basic knowledges in Information theory, Algorithmics (L3, M1 semester 1)
• Basic knowledges in Architecture, Networks.