(Partially Specified) Secure Channels Tom Shrimpton University of - PowerPoint PPT Presentation

Apr 01, 2024 •304 likes •925 views

(Partially Specified) Secure Channels Tom Shrimpton University of Florida Summer School on Real World Crypto and Privacy (June 14, 2018) Prologue: Review of AE Authenticated Encryption M M Prologue: Review of AE Probabilistic or

(Partially Specified) Secure Channels Tom Shrimpton University of Florida Summer School on Real World Crypto and Privacy (June 14, 2018)
Prologue: Review of AE Authenticated Encryption M M
Prologue: Review of AE Probabilistic or deterministic AE? Nonce based AE? What happens if a nonce repeats? Do I need to support associated data? What primitives should we build upon? encryption + MAC? (tweakable) wide-block cipher? sponges? ... What should happen when decryption fails? Is it safe to provide multiple, descriptive exceptions/error messages? Stop all future processing, or just for this message? What kind of information can decryption safely leak? Safe to release plaintext data “early”? Online encryption/decryption property? ”Atomic” plaintexts/ciphertexts, or stream-based? (Authenticated encryption != Secure Channel)

Recommend

Payment Channels Designing Secure Watchtowers Zeta Avarikioti ETH Zurich Distributed

Payment Channels Designing Secure Watchtowers Zeta Avarikioti ETH Zurich Distributed Computing www.disco.ethz.ch Can cryptocurrencies scale? 7 tx/s 20 tx/s 65.000 tx/s Payment Channels Payment Channels Payment Channels Funding

482 views • 37 slides

Building Secure Channels Kenny Paterson Information Security Group

Building Secure Channels Kenny Paterson Information Security Group Overview Why do we need secure channels? What properties should they have?

480 views • 31 slides

Secure and Usable Out-Of-Band Channels for Ad hoc Mobile Device Interactions Ronald Kainda, Ivan

Introduction HISP OOB Channels Problem definition Proposed methods Security and usability study Conclusion Secure and Usable Out-Of-Band Channels for Ad hoc Mobile Device Interactions Ronald Kainda, Ivan Flechais, A.W. Roscoe Workshop in

650 views • 18 slides

Secure Mobile Ad-hoc Interactions: Reasoning About Out-Of-Band (OOB) Channels Ronald Kainda, Ivan

Introduction Framework Application Conclusion Secure Mobile Ad-hoc Interactions: Reasoning About Out-Of-Band (OOB) Channels Ronald Kainda, Ivan Flechais, A.W. Roscoe International Workshop on Security and Privacy in Spontaneous Interaction

539 views • 17 slides

Data Security: The art of providing secure communication over insecure channels. Not a problem

Data Security: The art of providing secure communication over insecure channels. Not a problem that suddenly arose when computers were invented - its as old as mankind. Data Security falls naturally into two cathegories: * Confidentiality

542 views • 16 slides

Usability and Security of Out-Of-Band Channels in Secure Device Pairing Protocols Ronald Kainda,

Outline Introduction HISPs Proposed OOB Methods Experimental Design Results Analysis and Discussion Conclusion Usability and Security of Out-Of-Band Channels in Secure Device Pairing Protocols Ronald Kainda, Ivan Flechais, and A.W.

670 views • 41 slides

Channel Upgrading for Semantically-Secure Encryption on Wiretap Channels Ido Tal Alexander

Channel Upgrading for Semantically-Secure Encryption on Wiretap Channels Ido Tal Alexander Vardy Technion UCSD The wiretap channel Alice, Bob, and Eve X Y Main Alice U U Bob Encoder Decoder Channel W Bob n bits k bits random

474 views • 20 slides

Security Notions for Bidirectional Channels Giorgia Azzurra Marson Bertram Poettering FSE 2017

Security Notions for Bidirectional Channels Giorgia Azzurra Marson Bertram Poettering FSE 2017 Tokyo, Japan 1 / 11 Outline Secure channels and how they are modeled Security notions for bidirectional channels Analysis of bidirectional

602 views • 39 slides

INTERIM REPORT Q2 2013, JULY 26 (UNAUDITED) Protecting the irreplaceable | f-secure.com

INTERIM REPORT Q2 2013, JULY 26 (UNAUDITED) Protecting the irreplaceable | f-secure.com F-Secure celebrated its 25 th anniversary in May Contents 1. Highlights in Q2 2. Financial performance in Q2 3. Channels 4. Products and services

664 views • 30 slides

Chapter 6 Marks and Channels Vis/Visual Analytics, Chap 6 Marks/Channels 1 CGGM Lab., CS

Chapter 6 Marks and Channels Vis/Visual Analytics, Chap 6 Marks/Channels 1 CGGM Lab., CS Dept., NCTU Jung Hong Chuang The Big Picture Marks Basic graphical elements in an image Channels Visual channels to control the

667 views • 43 slides

How Secure are Secure How Secure are Secure Interdomain Routing Protocols? Interdomain Routing

DIMACS Workshop On Secure Routing March 10, 2010 How Secure are Secure How Secure are Secure Interdomain Routing Protocols? Interdomain Routing Protocols? $ $ Sharon Goldberg Microsoft Research & Boston University y Michael Schapira

701 views • 54 slides

Other Communication Channels Select channels of communication that will reach your audiences.

Other Communication Channels Select channels of communication that will reach your audiences. During Preplanning Ask: Which channels are available? (Consider your schedule and resources.) Which channels will target audiences find

280 views • 12 slides

Multiple Input and Output Channels Multiple Input and Output Channels Multiple Input Channels In

2/23/2019 channels slides Multiple Input and Output Channels Multiple Input and Output Channels Multiple Input Channels In [1]: import d2l from mxnet import nd def corr2d_multi_in(X, K): # First, traverse along the 0th dimension (channel

457 views • 6 slides

Side Channels and Covert Channels Daniel Bosk Department of Information and Communication Systems

Side Channels Covert Channels References Side Channels and Covert Channels Daniel Bosk Department of Information and Communication Systems (ICS), Mid Sweden University, Sundsvall. 1st May 2017 Daniel Bosk MIUN ICS Side Channels and Covert

689 views • 32 slides

Rayleigh- -Taylor instability Taylor instability Rayleigh in partially ionized in partially

1 Rayleigh- -Taylor instability Taylor instability Rayleigh in partially ionized in partially ionized prominences prominences Antonio J. Daz, R. Soler, E. Khomenko, A. De Vicente, J L. Ballester , M. Collados Workshop on Partially

488 views • 24 slides

Isolation and side-channels Nadia Heninger and Deian Stefan Some slides adopted from John

CSE 127: Computer Security Isolation and side-channels Nadia Heninger and Deian Stefan Some slides adopted from John Mitchell, Dan Boneh, and Stefan Savage Today Lecture objectives: Understand basic principles for building secure systems

1.08k views • 78 slides

Lecture 2 Capacity of Fading Gaussian Channels Slow fading channels: Ch. 5.4.14 Fast

Lecture 2 Capacity of Fading Gaussian Channels Slow fading channels: Ch. 5.4.14 Fast fading channels: Ch. 5.4.56 Mikael Skoglund, Theoretical Foundations of Wireless 1/16 The Flat Fading Gaussian Channel CSIT CSIR h m w m

406 views • 8 slides

WE ARE GROW WITH US THE PORTFOLIO We cover 70% of Indias population 4 NATIONAL CHANNELS

WE ARE GROW WITH US THE PORTFOLIO We cover 70% of Indias population 4 NATIONAL CHANNELS 8 REGIONAL CHANNELS 1 GLOBAL ENGLISH CHANNEL 45 RADIO CHANNELS + 14 LICENSES Web Portals www.24ghanta.com www.wionews.com www.zeenews.com

1.04k views • 32 slides

How Different are UWB Channels from Conventional Wideband Channels? Ulrich Schuster and Helmut

How Different are UWB Channels from Conventional Wideband Channels? Ulrich Schuster and Helmut B olcskei ETH Zurich 4 November 2005 UWB for Sensor Networks Workshop, 4 November 2005 1 Modeling Conventional Wireless Wideband Channels

312 views • 29 slides

Isolation and side-channels Deian Stefan Some slides adopted from Nadia Heninger,John Mitchell,

CSE 127: Computer Security Isolation and side-channels Deian Stefan Some slides adopted from Nadia Heninger,John Mitchell, Dan Boneh, and Stefan Savage Today Lecture objectives: Understand basic principles for building secure systems

968 views • 78 slides

Non-transient Side Channels Mengjia Yan Fall 2020 6.888 L5-Non-transient Side Channels 1 Lab

Non-transient Side Channels Mengjia Yan Fall 2020 6.888 L5-Non-transient Side Channels 1 Lab Assignment Handout on course website Each (regular) student will receive an email Solo or 2-person group Individual GitHub repo

978 views • 42 slides

Non-transient Side Channels Mengjia Yan Fall 2020 6.888 L5-Non-transient Side Channels 1 Lab

1.24k views • 102 slides

1 Mammalian Neurons Have Several Types of Voltage-Gated Ion Channels Why do neurons need so many

Voltage-Gated Ion Channels in Health and Disease jdk3 Principles of Neural Science, chapter 9 Voltage-Gated Ion Channels in Health and Disease I. Multiple functions of voltage- gated ion channels II. Neurological diseases involving

613 views • 15 slides

Partially specified Probabilities: decisions and games May 2007 Ehud Lehrer The problem

Partially specified probabilities Partially specified Probabilities: decisions and games May 2007 Ehud Lehrer The problem Partially specified probabilities Nash equilibrium implicitly assumes that each player knows what other players

653 views • 38 slides