Category: QualSec seminars

Mar 15

Seminar: Veronika Kuchta “Distributed Attribute-Based Searchable Encryption” (March 21, 2016)

March 21, 2016 – 14.00 – Computer Department Seminar Room – NO Building, 8th floor, room 2N8.202 (“salle séminaire”)

Speaker: Veronika Kuchta (ULB)

Title: Distributed Attribute-Based Searchable Encryption

Abstract: In recent years, cloud computing has attracted a lot of attention by providing data storage services for Internet users. To resolve concerns, data owners should encrypt theirs data before uploading it to the cloud. There are services which allow an user to conduct searches without revealing any information about the content of outsourced data. Those services are provided by public key encryption with keyword search. Additional usage of another cryptographic primitive – Attribute-Based Encryption – enables users to control the search over outsourced data according to an access control policy. The biggest problem of such new primitive is to fully trust the one storage server which conducts the search operation over encrypted data. Therefore, a possible solution of this problem is the distributed setting construction which allows to distribute the single point of failure among a group of servers. We provide the first construction of Distributed Attribute-Based Searchable Encryption (DABSE) based on lattices. Attribute-based encryption on lattices is an important but rarely researched question. We prove our scheme secure against chosen ciphertext attacks under the assumption that the underlying schemes, identity based threshold decryption and distributed attribute-based encryption are secure under the hardness of a lattice-based problem – LWE.

Mar 15

Seminar: Dimitris Sisiaridis “Design of mechanisms for the detection of cyber threats and attacks: Big Data and traffic log management” (March 14, 2016)

March 14, 2016 – 14.00 – Computer Department Seminar Room – NO Building, 8th floor, room 2N8.202 (“salle séminaire”)

Speaker: Dimitris Sisiaridis (ULB)

Title: Design of mechanisms for the detection of cyber threats and attacks: Big Data and traffic log management

Dec 21

Seminar: Joppe Bos “Differential Computation Analysis: Hiding your White-Box Designs is Not Enough” (January 25, 2016)

January 25, 2016 – 12.00 – Computer Department Seminar Room – NO Building, 8th floor (P.2NO8.08 – Rotule)

Speaker: Joppe Bos (NXP, Belgium)

Title: Differential Computation Analysis: Hiding your White-Box Designs is Not Enough

Dec 20

Seminar: Veronika Kuchta “Distributed Protocols for Digital Signatures and Public Key Encryption and their Applications to Cloud Systems” (January 18, 2016)

January 18, 2016 – 10.00 – Computer Department Seminar Room – NO Building, 8th floor, room 2N8.202 (“salle séminaire”)

Speaker: Veronika Kuchta (ULB)

Title: Distributed Protocols for Digital Signatures and Public Key Encryption and their Applications to Cloud Systems

Nov 25

Course: Gilles Van Assche “Authenticated encryption” (November 24, 2015)

Due the lockdown of the University this Tuesday 24, the presentation of Dr. Ir. Gilles Van Assche about authenticated encryption has been canceled. However the presentation will still be done in the beginning of the second quadrimester during a seminar of the QualSec Research Group (https://qualsec.ulb.ac.be).

Nov 19

Course: Gilles Van Assche “Authenticated encryption” (November 24, 2015)

November 24, 2015 – from 12.00 to 14:00 – ULB – La Plaine – room OF.2064

Speaker: Gilles Van Assche (STMicroelectronics)

Title: Authenticated encryption

Nov 19

Seminar: Nikita Veshchikov “Ranking hypotheses during a side channel attack” (November 23, 2015)

November 23, 2015 – 11.00 – Computer Department Seminar Room – NO Building, 8th floor (P.2NO8.08 – Rotule)

Speaker: Nikita Veshchikov (ULB)

Title: Ranking hypotheses during a side channel attack

Oct 25

Advances in secure remote electronic voting: Public dissertation

This friday 2015-10-30T16:30, Jérôme Dossogne will discuss his work regarding advances in secure remote electronic voting.

Oct 20

Seminar: Stjepan Picek “Evolutionary Computation in Cryptology” (Octobre 26, 2015)

October 26, 2015 – 12.15 – Computer Department Seminar Room – NO Building, 8th floor (P.2NO8.08 – Rotule)

Speaker: Stjepan Picek (KULeuven)

Title: Evolutionary Computation in Cryptology

Oct 12

Seminar: Stephane Fernandes Medeiros “Kalyna the new Ukrainian block cipher standard” (Octobre 12, 2015)

October 12, 2015 – 12.30 – Computer Department Seminar Room – NO Building, 8th floor (P.2NO8.08 – Rotule)

Speaker: Stephane Fernandes Medeiros (ULB)

Title: Kalyna the new Ukrainian block cipher standard