Internship / Study of Key Distribution Schemes Based on Identity (m/f)

Description de l'offre

Internship / Study of Key Distribution Schemes Based on Identity (m/f)

Airbus DS SLC Elancourt

Airbus Defence and Space is a division of Airbus Group formed by combining the business activities of Cassidian, Astrium and Airbus Military. The new division is Europe's number one defence and space enterprise, the second largest space business worldwide and among the top ten global defence enterprises. It employs some 40,000 employees generating revenues of approximately €14 billion per year.

Airbus is a global leader in aeronautics, space and related services. In 2016, it generated revenues of € 67 billion and employed a workforce of around 134,000. Airbus offers the most comprehensive range of passenger airliners from 100 to more than 600 seats. Airbus is also a European leader providing tanker, combat, transport and mission aircraft, as well as Europe's number one space enterprise and the world's second largest space business. In helicopters, Airbus provides the most efficient civil and military rotorcraft solutions worldwide.

Our people work with passion and determination to make the world a more connected, safer and smarter place. Taking pride in our work, we draw on each other's expertise and experience to achieve excellence. Our diversity and teamwork culture propel us to accomplish the extraordinary - on the ground, in the sky and in space.

Description of the job

Airbus Defence and Space (Elancourt) is looking for an intern for a 6-month internship.

Within Airbus Defence and Space, you will join the cryptography team within the Secure Land Communication entity as an intern. This team missions is to develop and deploy security solutions for networks, notably for professional radio-communication networks.

This internship will start on 1st December 2016 (subject to some flexibility).

Internships at Airbus

Profil recherché

Tasks & accountabilities

You will study of key distribution schemes based on identity. Identity-based cryptography (IBC) is in full extension because it eliminates the need for a KPI. There is an interest in its use for the distribution of symmetric cryptographic keys. An application example would be the protection of critical communications in 4G networks.

The internship will be composed of several phases:

·  Studying the state of the art of the distribution issues of symmetric cryptographic keys with identity-based cryptography,
·  Studying the state-of-the-art of various algorithms used in identity-based cryptography (encryption and signature), including the Boneh-Franklin and Sakai-Kasahara schemes,
·  Performing the benchmarks of scheme properties: resistance to ante-quantum and post-quantum attacks, complexity of their implementation, etc.
·  Studying the possible changes to manage several sizes of symmetric keys and proposing an example scheme

In addition to the theoretical study of schemes, you will also be required to implement algorithms to better understand their complexity.
In terms of resistance to attacks, a specific analysis will be carried out on the resistance to post-quantum attacks.

Required skills

You are in the second or final year of engineering school, a Master's degree or in the 4th or 5th year of university, specialising in Mathematics/Telecommunications, Networks.

You ideally have initial experience in Finance/Management Control acquired during previous internships or apprenticeship.

You have knowledge in:

·  Cryptography
·  Algorithms and complexity study,
·  Algebra, groups, finite fields, and elliptical curves,
·  Development tools in Python, C or C++. *

An interest in theoretical study would be a plus.

You are recognised for your meticulousness, independent way of working and reliability.

You are a good team player and you have excellent interpersonal skills.

English: intermediate level,
French: advanced level.