TEMPEST Attacks Against AES Covertly stealing keys for $200 Craig - PowerPoint PPT Presentation

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TEMPEST Attacks Against AES Covertly stealing keys for $200 Craig Ramsay & Jasper Lohuis September 22, 2017 Introduction Your code just pushes electrons around. 0010101 10 10101010010101 Pushing electrons will make magnetic fjelds.

OpenSSL AES Round 1 b 0,0 b 1,0 b 2,0 b 3,0 c 0,0 b 0,0 b 1,0 c 1,0 c 2,0 b 2,0 b 3,0 c 3,0 T 0 (...) b 0,1 b 1,1 b 2,1 b 3,1 b 0,1 c 0,1 c 1,1 b 1,1 b 2,1 c 2,1 c 3,1 b 3,1 T 1 (...) b 0,2 b 1,2 b 2,2 b 3,2 c 0,2 b 0,2 b 1,2 c 1,2 b 2,2 c 2,2 b 3,2 c 3,2 T 2 (...) b 0,3 b 1,3 b 2,3 b 3,3 b 0,3 c 0,3 c 1,3 b 1,3 c 2,3 b 2,3 c 3,3 b 3,3 T 3 (...) Round 1 Key
OpenSSL AES Round 1 b 0,0 b 1,0 b 2,0 b 3,0 c 0,0 b 0,0 b 1,0 c 1,0 c 2,0 b 2,0 b 3,0 c 3,0 T 0 (...) b 0,1 b 1,1 b 2,1 b 3,1 b 0,1 c 0,1 c 1,1 b 1,1 b 2,1 c 2,1 c 3,1 b 3,1 T 1 (...) b 0,2 b 1,2 b 2,2 b 3,2 c 0,2 b 0,2 b 1,2 c 1,2 b 2,2 c 2,2 b 3,2 c 3,2 T 2 (...) b 0,3 b 1,3 b 2,3 b 3,3 b 0,3 c 0,3 c 1,3 b 1,3 c 2,3 b 2,3 c 3,3 b 3,3 T 3 (...) Round 1 Key
OpenSSL AES Round 1 Attack these lookups. The non-linearity is useful. b 0,0 b 1,0 b 2,0 b 3,0 b 0,0 c 0,0 c 1,0 b 1,0 c 2,0 b 2,0 c 3,0 b 3,0 T 0 (...) b 0,1 b 1,1 b 2,1 b 3,1 b 0,1 c 0,1 b 1,1 c 1,1 c 2,1 b 2,1 c 3,1 b 3,1 T 1 (...) b 0,2 b 1,2 b 2,2 b 3,2 c 0,2 b 0,2 c 1,2 b 1,2 b 2,2 c 2,2 c 3,2 b 3,2 T 2 (...) b 0,3 b 1,3 b 2,3 b 3,3 b 0,3 c 0,3 c 1,3 b 1,3 c 2,3 b 2,3 c 3,3 b 3,3 T 3 (...) Round 1 Key
Our setup vs traditional setup
Recording comparison — ’Scope
Recording comparison — ’Scope Arm
Recording comparison — ’Scope Send 1 command
Recording comparison — ’Scope Trigger

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TEMPEST Attacks Against AES Covertly stealing keys for $200 Craig - PowerPoint PPT Presentation

TEMPEST Attacks Against AES Covertly stealing keys for $200 Craig Ramsay & Jasper Lohuis September 22, 2017 Introduction Your code just pushes electrons around. 0010101 10 10101010010101 Pushing electrons will make magnetic fjelds.

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Advanced Encryption Standard Simplified-AES Simplified-AES Example Details of AES Cryptography

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TEMPEST Attacks Against AES Covertly stealing keys for $200 Craig - PowerPoint PPT Presentation

TEMPEST Attacks Against AES Covertly stealing keys for $200 Craig Ramsay & Jasper Lohuis September 22, 2017 Introduction Your code just pushes electrons around. 0010101 10 10101010010101 Pushing electrons will make magnetic fjelds.

Advanced Encryption Standard Simplified-AES Simplified-AES Example Details of AES Cryptography

Advanced Encryption Standard Simplified-AES Simplified-AES Example Details of AES Cryptography

Improved Key Recovery Attacks on Reduced-Round AES on Reduced-Round AES with Practical Data and

CORPORATE PRESENTATION AES GENER September 2017 AES Gener at a Glance Leading power generation

CORPORATE PRESENTATION AES GENER March 2017 AES Gener at a Glance Leading power generation

A Meet-in-the-Middle Attack on 8-Round AES H useyin Demirci Ali Aydn Sel cuk presented

Algebraic Analysis of AES Carlos Cid Information Security Group, Royal Holloway, University of

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Tempest: Integrated OpenStack Testing Matthew Treinish mtreinish@kortar.org May 12, 2014

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