Difference between revisions of "AFSecurity Seminar"

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== Transport-level privacy for instant messaging ==
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== ''Confidential Computing'' ==
  
 
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| '''TIME:'''&nbsp; Friday 4 November 2022, 14:00h<br />'''PLACE:'''&nbsp;  Kristen Nygaards Hall (Room 5370), 5th 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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| '''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 />
Coffee and snaks served.<br />
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All interested are welcome. Coffee and snaks served.<br />
 
<br />'''AGENDA:'''<br />
 
<br />'''AGENDA:'''<br />
14:00h Welcome at IFI and AF''Security''<br />14:15 Invited talk<br />
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14:00h Welcome to AFSecurity at UiO <br />
* TITLE: ''Transport-level privacy for instant messaging'' &nbsp;
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14:15h Invited talk<br />
* SPEAKER: Boel Nelson, University of Copenhagen
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* TITLE: ''Confidential Computing'' &nbsp;
| <center>[[File:photo-Boel-Nelson.jpg|150px|link=https://di.ku.dk/english/staff/vip/researchers_ac/?pure=en/persons/760913]]</center>
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* SPEAKER: Ijlal Loutfi, Canonical 
| <center>&nbsp;&nbsp;[[File:logo-University-Copenhagen.png|border|300px|link=https://www.ku.dk/english/]]</center>
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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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* ABSTRACT:<br />Traffic analysis poses an important privacy challenge. In particular, transport-level data can leak unintentional information—such as who communicates with whom. Existing tools for metadata privacy have adoption obstacles, including the risks of being scrutinized for having a particular app installed, and performance overheads incompatible with mobile devices.<br /><br /> In this talk, I will present DenIM (Deniable Instant Messaging), a novel protocol built on the idea of hiding traffic to make it unobservable to an adversary by piggybacking it on observable traffic. We posit that resilience to traffic analysis must be directly supported by major IM services themselves, and must be done in a low-latency manner without breaking existing features. Hence, DenIM is designed both for compatibility and performance; DenIM is a variant of the Signal protocol—commonly used for strong encryption in instant messaging services, and, DenIM’s bandwidth overhead scales with the volume of regular traffic, as opposed to scaling with time or the number of users.<br /><br /> The talk is based on joint research with E. Pagnin and A. Askarov.
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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.
<br />
 
  
'''BIO:''' &nbsp;
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<br />15:00h Discussion<br />
<br />Boel Nelson is a postdoc in the Algorithms and Complexity section at University of Copenhagen, and a member of the research center Basic Algorithms Research Copenhagen (BARC). She is an upcoming Marie Skłodowska-Curie postdoctoral fellow—starting her project on Provable Privacy for Metadata (ProPriM) in August 2023 at Aarhus University. Her research interests include data privacy, detection and mitigation of side-channels, and privacy enhancing technologies.
 
  
Prior to joining UCPH/BARC, Boel worked as a postdoc in the Logic and Semantics group at Aarhus University, where she conducted research on anonymous communication. Boel earned her PhD from Chalmers University of Technology, Sweden, with a dissertation titled ''Differential Privacy—A Balancing Act''. Additionally, Boel holds a MSc in Computer Systems and Networks with a security specialization, and a BSc in Software Engineering.
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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.
  
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| [[File:AFSecurity-small.png|250px]]
 
| [[File:AFSecurity-small.png|250px]]
| AF''Security'' is organised by UiO [https://www.mn.uio.no/ifi/english/research/groups/sec/ Digital Security].
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| AF''Security'' is organised by UiO [https://www.mn.uio.no/ifi/forskning/grupper/sec/ Digital Security].
 
| [[File:logo-uio-english-2022.png|250px|link=https://www.mn.uio.no/]]
 
| [[File:logo-uio-english-2022.png|250px|link=https://www.mn.uio.no/]]
 
| [[File:Sec-light-360.png|150px|link=https://www.mn.uio.no/ifi/english/research/groups/sec/]]
 
| [[File:Sec-light-360.png|150px|link=https://www.mn.uio.no/ifi/english/research/groups/sec/]]
 
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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