Difference between revisions of "AFSecurity Seminar"

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== Privacy in Social Networks ==
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== ''Confidential Computing'' ==
  
'''DATE:''' Friday 10 June 2016. 14:00h
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{| border="0" cellpadding="1" cellspacing="1" width="100%"
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|-
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| '''TIME:'''&nbsp; Friday 1 December 2023, 14:00h<br />'''PLACE:'''&nbsp;  Auditorium Smalltalk, 1st floor, IFI, UiO, Ole Johan Dahls hus, Gaustadalleen 23b, Oslo. [https://kart.finn.no/?lng=10.71782&lat=59.94342&zoom=17&mapType=normap&markers=10.71782,59.94342,r,Gaustadall%C3%A9en+23B See map].<br />
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All interested are welcome. Coffee and snaks served.<br />
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<br />'''AGENDA:'''<br />
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14:00h Welcome to AFSecurity at UiO <br />
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14:15h Invited talk<br />
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* TITLE: ''Confidential Computing'' &nbsp;
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* SPEAKER: Ijlal Loutfi, Canonical 
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| <center>[[File:photo-Ijlal-Loutfi.png|90px|link=https://www.linkedin.com/in/ijlal-loutfi-785125234/]]</center>
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| <center>[[File:logo-Canonical.png|320px|link=https://canonical.com/]]</center>
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|}
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* ABSTRACT:<br />Protecting data in-use has long been a challenging open problem in computer science. While being computed on in cleartext in system memory, your data stored in RAM is exposed to the millions lines of code that make up the underlying platform’s privileged system software. By design, a malicious firmware, or compromised operating system can easily leak your data, or compromise its integrity.<br /><br />Confidential computing is a privacy-enhancing system security primitive which addresses this challenge head-on, by running your security-sensitive processes in isolated execution environments whose security guarantees can be remotely attested. Its recent generations, such as Intel SGX, Intel TDX and AMD SEV SNP, make use of newer CPU hardware and architectural extensions, such as the AES-128 hardware encryption engine which encrypts RAM memory pages in real-time. Hardware with these capabilities is already available in the market, and public cloud providers have been one of its early adopters.<br /><br />In this presentation, we first visit the history of confidential computing, then study the technical system primitives which allow us to implement both isolation and attestation. We also explore the different silicon implementations of confidential computing, where they are deployed today, and for which uses cases.
  
'''LOCATION:'''&nbsp; Kristen Nygaard's sal (room 5370), Ole Johan Dahl's House.
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<br />15:00h Discussion<br />
  
'''AGENDA:'''
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'''BIO:''' &nbsp; Dr. Ijlal Loutfi is the product lead for Ubuntu Security at Canonical. She has a PhD in cyber security from the University of Oslo, where she worked on Trusted Execution Environments and Identity Management.
  
14:00h Welcome at IFI
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<br /><br />
  
14:15h Talk: ''Formalising Privacy Settings in Online Social Networks''
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{| border="0" cellpadding="1" cellspacing="1" width="90%"
 
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|-
15:00h Discussion
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| [[File:AFSecurity-small.png|250px]]
 
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| AF''Security'' is organised by UiO [https://www.mn.uio.no/ifi/forskning/grupper/sec/ Digital Security].
'''SPEAKER:''' Raúl Pardo Jiménez (Chalmers)
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| [[File:logo-uio-english-2022.png|250px|link=https://www.mn.uio.no/]]
 
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| [[File:Sec-light-360.png|150px|link=https://www.mn.uio.no/ifi/english/research/groups/sec/]]
'''ABSTRACT:'''
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|}
Online Social Networks (OSNs) have changed the way people communicate,
 
bringing many benefits but also the possibility of new threats. Privacy
 
is one of them. Nearly 70% of internet users are active in OSNs. On the
 
other hand, privacy breaches are keeping pace with this growth and
 
users' requirements are much higher than the privacy guarantees offered
 
by OSNs. In this talk, I present the current privacy protection
 
mechanism used in OSNs, the so called Relationship-based Access Control
 
(ReBAC), and pinpoint some of its weaknesses. Furthermore, I describe
 
the directions that are being considered to improve privacy protection
 
in OSNs. In particular, I focus on a formal privacy policy framework
 
(PPF), which uses knowledge-based logic to express complex privacy
 
policies and how these policies fix some of the problems in ReBAC.
 
Finally, I will show a prototype implementation of some PPF policies
 
(which are currently not offered in any commercial OSN, such as Facebook
 
or Twitter) in the open source OSN Diaspora*.
 
 
 
'''SPEAKER BIO:'''
 
Raúl Pardo Jiménez is a PhD student at the Department of Computer Science at Chalmers
 
University of Technology, Sweden. His research is focused on enforcing
 
privacy properties in big data systems, in particular social networks,
 
by using formal methods. He works under the supervision of Gerardo Schneider and
 
Dave Sands at Chalmers University.
 

Latest revision as of 15:30, 14 November 2023

Confidential Computing

TIME:  Friday 1 December 2023, 14:00h
PLACE:  Auditorium Smalltalk, 1st floor, IFI, UiO, Ole Johan Dahls hus, Gaustadalleen 23b, Oslo. See map.

All interested are welcome. Coffee and snaks served.

AGENDA:
14:00h Welcome to AFSecurity at UiO
14:15h Invited talk

  • TITLE: Confidential Computing  
  • SPEAKER: Ijlal Loutfi, Canonical
Photo-Ijlal-Loutfi.png
Logo-Canonical.png
  • ABSTRACT:
    Protecting data in-use has long been a challenging open problem in computer science. While being computed on in cleartext in system memory, your data stored in RAM is exposed to the millions lines of code that make up the underlying platform’s privileged system software. By design, a malicious firmware, or compromised operating system can easily leak your data, or compromise its integrity.

    Confidential computing is a privacy-enhancing system security primitive which addresses this challenge head-on, by running your security-sensitive processes in isolated execution environments whose security guarantees can be remotely attested. Its recent generations, such as Intel SGX, Intel TDX and AMD SEV SNP, make use of newer CPU hardware and architectural extensions, such as the AES-128 hardware encryption engine which encrypts RAM memory pages in real-time. Hardware with these capabilities is already available in the market, and public cloud providers have been one of its early adopters.

    In this presentation, we first visit the history of confidential computing, then study the technical system primitives which allow us to implement both isolation and attestation. We also explore the different silicon implementations of confidential computing, where they are deployed today, and for which uses cases.


15:00h Discussion

BIO:   Dr. Ijlal Loutfi is the product lead for Ubuntu Security at Canonical. She has a PhD in cyber security from the University of Oslo, where she worked on Trusted Execution Environments and Identity Management.




AFSecurity-small.png AFSecurity is organised by UiO Digital Security. Logo-uio-english-2022.png Sec-light-360.png