Daniel Genkin

Associate Professor at Georgia Tech. Security, systems, side channels, cryptography.

[Daniel Genkin @DanielGenkin]

2/2 Its legacy however lives on, being the first demonstration of an end-to-end TDX break. Other CPUs have already risen to take its role, with the server being operational by simply plopping a fresh CPU from the tray. This one however is going to a cherished place on the shelf.

[Daniel Genkin @DanielGenkin]

1/2 After two weeks of https://t.co/Jl1dpGnM6J being public (and additional 6+ month of private disclosure) Intel has finally revoked one of several CPUs used for @Teedotfail. This means that the Xeon chip below has made the ultimate sacrifice and will never run SGX or TDX again.

[Daniel Genkin @DanielGenkin]

@secparam @ittaia @bgmshana @badcryptobitch @VitalikButerin @aniketpkate @socrates1024 @CryptoGPS Lasers, drones, robots, TEE, and AI. What can go wrong? :-)

[Daniel Genkin @DanielGenkin]

@ittaia @randhindi @badcryptobitch @alinush @secparam @VitalikButerin @aniketpkate @socrates1024 @CryptoGPS Is DanielGenkin access more or less powerful than root access?

[Daniel Genkin @DanielGenkin]

@randhindi @badcryptobitch @alinush @ittaia @secparam @VitalikButerin @aniketpkate @socrates1024 @CryptoGPS so TEEs in principle do, like attestation tells you which code is running and if you know what the inputs are, the output is fixed. At least until you get a DRAM interposer :D

[Daniel Genkin @DanielGenkin]

@randhindi @badcryptobitch @alinush @ittaia @secparam @VitalikButerin @aniketpkate @socrates1024 @CryptoGPS if its a blockchain application, sure. Although you need to be careful to never operate until what mechanism you used (say consensus) has stabilized. If its just a single node trying to be an alternative to a TEE, its much harder.

[Daniel Genkin @DanielGenkin]

@badcryptobitch @alinush @ittaia @secparam @VitalikButerin @aniketpkate @socrates1024 @CryptoGPS guarded by lasers!

[Daniel Genkin @DanielGenkin]

@ittaia @alinush @badcryptobitch @secparam @VitalikButerin @aniketpkate @socrates1024 @CryptoGPS As for FHE, I would still be careful. Remember you don't have integrity, just confidentiality.

[Daniel Genkin @DanielGenkin]

@ittaia @alinush @badcryptobitch @secparam @VitalikButerin @aniketpkate @socrates1024 @CryptoGPS do lasers count?

[TEE.fail @TeeDotFail]

@DanielGenkin Your message "More interposer fun, this time with DDR5 memory. Breaking TDX, S..." has been signed. Check out your quote at: https://t.co/YVRROMuVV3 and visit https://t.co/6btgimZ8S2 for more info.

[Daniel Genkin @DanielGenkin]

More interposer fun, this time with DDR5 memory. Breaking TDX, SGX, SEV and even Nvidia TEEs. Checkout our work at https://t.co/Jl1dpGnM6J, and get a personally-signed Intel attestation report at @TEEdotFail.

[Daniel Genkin @DanielGenkin]

Want to know what happens when commercial TEEs meet improvised DRAM memory interposers? SGX mayhem including attestation key extraction. Please DO try that at home😉. Check out our work at https://t.co/JyvHP48nez

[Daniel Genkin @DanielGenkin]

Have an Apple device from the last few years? We have a new side channel attack for you. Checkout our work at https://t.co/7absarR2DO

Joint work with Jason Kim, Jalen Chuang and Yuval Yarom (@yuvalyarom). Could not have asked for a better team!

[Alan Wang @therealurd00m]

Our work on page walk side channels was accepted at @IEEESP 2025 (#ieeesp2025)! The full paper is now available at: https://t.co/15cICFDfpn and our code is available at: https://t.co/cz5j6JPRYb

[HOSEIN YAVARZADEH @hosein_yz]

Excited to present "Pathfinder: High-Resolution Control-Flow Attacks Exploiting the Conditional Branch Predictor" at @ASPLOSConf with Archit Agarwal, Max Christman, @CryptoGPS, @DanielGenkin, Andrew Kwong, @flowyroll, @deiandelmars, @mktaram and Dean Tullsen. (1/4)🧵

[Daniel Genkin @DanielGenkin]

https://t.co/OmHFQbmyVk happening now @RealWorldCrypto. Come see Boru Chen (@blue75525366) talking about breaking constant time crypto using fancy prefetchers on Apple CPUs

[Daniel Genkin @DanielGenkin]

Ever wondered what happens when side-channel resistant code meets a fancy prefetcher? Checkout our paper breaking constant time crypto on Apple CPUs.

https://t.co/PFKOMkBDDV

Joint work with Boru Chen, @YingchenWang96, @PradyumnaShome, Chris Fletcher, @dkohlbre, @ricpacca

[Daniel Genkin @DanielGenkin]

I'm very thankful to the @SloanFoundation for recognizing my research. Could not have done it without my awesome students, great collaborators, and wonderful mentors. Checkout our research group that made this possible at https://t.co/KADdmxcVBR

[Sloan Foundation @SloanFoundation]

We have today announced the names of the 2024 Sloan Research Fellows! Congratulations to these 126 outstanding early-career researchers:
https://t.co/hmIwpwLcsb

[Daniel Genkin @DanielGenkin]

Microarchitectural unboxing: check out our new demo for breaking two factor authentication using iLeakage. Yes you heard it, speculative execution attacks on Apple’s M3 Macs and latest Safari that defeat Facebook’s 2FA over SMS.

https://t.co/R0n2LareR3

[Adam Doupé @adamdoupe]

Goodbye WOOT the Workshop, hello WOOT the Conference!

Excited to be a part of this legacy and this new beginning.