Okan Seker @_oseker

Lübeck, Germany Joined March 2020

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144

Thomas Eisenbarth @tomcrypt

11 months ago

Check out #TDX⬇down showing Single-Stepping and Instruction Counting attacks on #Intel #TDX, also exposing novel leakage in #wolfSSL and #OpenSSL #ECDSA nonce generation. Join @lucawilkeUzL for the presentation at @acm_ccs next week. uzl-its.github.io/tdxdown/

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Olivier Bronchain @BronchainO

2 years ago

New paper from our @NXP PQC team ! A new methodology for SCA and FA against Dilithium, scaling gently with noise ! We exploit many different variables during accepted as well as rejected signatures and attack shuffled implementations. Check it out: eprint.iacr.org/2023/1545

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Against the Storm ⚡ @AtS_CityBuilder

2 years ago

Greetings, Viceroys! We’re giving you the chance to win 1 of 2 Beaver Villager Plushies! 🪓🦫 How to enter? 1. Follow @Makeship and @AtS_CityBuilder 2. Retweet this post Giveaway ends August 10th at 2pm (ET). Good luck!

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Anna Pätschke @paetscan

2 years ago

What do penguins have to do with ciphertext side-channels, and why do the colorful patterns evoke so much grief? 🤔 Here's a sneak peek at the #usesec23 talk @JanWichelmann and I will be giving about our Cipherfix paper on Friday afternoon at @USENIXSecurity 2023 😊

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Jan Wichelmann @JanWichelmann

3 years ago

I'm happy to announce that our new work "Microwalk-CI: Practical Side-Channel Analysis for JavaScript Applications" got accepted at @acm_ccs'22! We asked us: Is it possible to create a side-channel analysis tool that is both accurate and usable in everyday development?

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IACR ePrint Updates @IACRePrint

4 years ago

[New] Side-Channel Protections for Picnic Signatures (Diego F. Aranha and Sebastian Berndt and Thomas Eisenbarth and Okan Seker and Akira Takahashi and Luca Wilke and Greg Zaverucha) ia.cr/2021/735

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IACR ePrint Updates @IACRePrint

4 years ago

[New] Help, my Signal has bad Device! Breaking the Signal Messengers Post-CompromiseSecurity through a Malicious Device (Jan Wichelmann and Sebastian Berndt and Claudius Pott and Thomas Eisenbarth) ia.cr/2021/626

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Luca Wilke @lucawilkeUzL

4 years ago

I am very happy to finally lift the curtain on our paper "undeSErVed trust: Exploiting Permutation-Agnostic Remote Attestation" that will appear at @wootsecurity. Thanks @JanWichelmann, Florian Sieck and @tomcrypt for the great collaboration. uzl-its.github.io/undeserved-tru…

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Thomas Eisenbarth @tomcrypt

5 years ago

Our new white-box masking scheme "A White-Box Masking Scheme Resisting Computational and Algebraic Attacks", @_oseker, @tomcrypt , M. Liskiewicz, is now accepted at #TCHES Volume 2021, Issue 2 tches.iacr.org/index.php/TCHE…

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Sebastian Berndt @berndt_seb

5 years ago

New paper with @_oseker and @tomcrypt: how to provably protect MPC-in-the-head protocols against sidechannel attacks. To illustrate the approach, we secured the Picnic signature scheme

IACR @IACR_News

5 years ago

New paper with @_oseker and @tomcrypt: how to provably protect MPC-in-the-head protocols against sidechannel attacks. To illustrate the approach, we secured the Picnic signature scheme