Daniel Genkin @DanielGenkin
Associate Professor at Georgia Tech. Security, systems, side channels, cryptography. faculty.cc.gatech.edu/~genkin/ Atlanta, GA Joined August 2018-
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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.
1/2 After two weeks of TEE.fail 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.
@secparam @ittaia @bgmshana @badcryptobitch @VitalikButerin @aniketpkate @socrates1024 @CryptoGPS Lasers, drones, robots, TEE, and AI. What can go wrong? :-)
@ittaia @randhindi @badcryptobitch @alinush @secparam @VitalikButerin @aniketpkate @socrates1024 @CryptoGPS Is DanielGenkin access more or less powerful than root access?
@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
@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.
@badcryptobitch @alinush @ittaia @secparam @VitalikButerin @aniketpkate @socrates1024 @CryptoGPS guarded by lasers!
@ittaia @alinush @badcryptobitch @secparam @VitalikButerin @aniketpkate @socrates1024 @CryptoGPS As for FHE, I would still be careful. Remember you don't have integrity, just confidentiality.
@ittaia @alinush @badcryptobitch @secparam @VitalikButerin @aniketpkate @socrates1024 @CryptoGPS do lasers count?
@DanielGenkin Your message "More interposer fun, this time with DDR5 memory. Breaking TDX, S..." has been signed. Check out your quote at: view.tee.fail/view/45ecffd7c… and visit tee.fail for more info.
More interposer fun, this time with DDR5 memory. Breaking TDX, SGX, SEV and even Nvidia TEEs. Checkout our work at TEE.fail, and get a personally-signed Intel attestation report at @TeeDotFail.
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 wiretap.fail
Have an Apple device from the last few years? We have a new side channel attack for you. Checkout our work at predictors.fail Joint work with Jason Kim, Jalen Chuang and Yuval Yarom (@yuvalyarom). Could not have asked for a better team!
Our work on page walk side channels was accepted at @IEEESP 2025 (#ieeesp2025)! The full paper is now available at: gofetch.fail/files/peek-a-w… and our code is available at: github.com/FPSG-UIUC/Peek…
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)🧵
GoFetch.fail happening now @RealWorldCrypto. Come see Boru Chen (@blue75525366) talking about breaking constant time crypto using fancy prefetchers on Apple CPUs
Ever wondered what happens when side-channel resistant code meets a fancy prefetcher? Checkout our paper breaking constant time crypto on Apple CPUs. gofetch.fail Joint work with Boru Chen, @YingchenWang96, @PradyumnaShome, Chris Fletcher, @dkohlbre, @ricpacca
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 architecture.fail
We have today announced the names of the 2024 Sloan Research Fellows! Congratulations to these 126 outstanding early-career researchers: sloan.org/fellowships/20…
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. ileakage.com
Goodbye WOOT the Workshop, hello WOOT the Conference! Excited to be a part of this legacy and this new beginning.
WOOT! Big news! Starting 2024 WOOT will be @usenix WOOT Conference on Offensive Technologies! WOOT '24 will be on August 12-13 2024, colocated with USENIX Security WOOT '24 will be co-chaired by @noopwafel (@intel) and @adamdoupe (@uarizona) usenix.org/conference/woo…
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