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Christina Garman
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Christina Garman

@CryptoGPS

Christina Garman (not the GARMIN GPS). Associate professor at Purdue University interested in privacy and security.

110 Following780 Followers24 Posts
  1. Christina Garman@CryptoGPS
    Apply to attend GREPSEC VII! USENIX is hosting the GREPSEC VII workshop (for Ph.D. students in computer security and privacy, focused on mentorship) on August 10-11, 2026 in Baltimore, MD, co-located with USENIX Security '26. Applications are due June 15!
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  2. Christina Garman@CryptoGPS
    Christina Garman
    RT @DanielGenkin: More interposer fun, this time with DDR5 memory. Breaking TDX, SGX, SEV and even Nvidia TEEs. Checkout our work at and get a personally-signed Intel attestation report at @TEEdotFail.
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  3. Christina Garman@CryptoGPS
    Check out our demo NOW at CCS 2025! breaking SGX live at the poster session.
    Download
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  4. Christina Garman@CryptoGPS
    It's easier than you might think!
    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
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  5. 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
    Download
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  6. Christina Garman@CryptoGPS
    Embarking on a new project that needs physical access to an H100 GPU. Any chance anyone is willing to let us borrow one (we promise to return it), in exchange for a security exploration into the land of confidential computing? If so, DM me for further details. Thanks :)
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  7. Christina Garman@CryptoGPS
    Please consider submitting to FC this year! @pedrorechez and I are excited to be chairing, and we need your papers to build a great program!
    Financial Cryptography @IFCA_Conference
    After the Satoshi grace period, the FC'25 deadline has been set to 11 October, 2024 (AoE). This is a firm deadline! Good luck preparing your submissions!
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  8. Financial Cryptography@IFCA_Conference
    After the Satoshi grace period, the FC'25 deadline has been set to 11 October, 2024 (AoE). This is a firm deadline! Good luck preparing your submissions!
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  9. Christina Garman@CryptoGPS
    A great summary of the Zerocash/Zcash origin story. Truly humbled and grateful to have been a part of this, and appreciative of IEEE S&P for the recognition.
    Ian Miers @secparam
    Zerocash won the 2024 IEEE S&P Test of Time Award. Published in 2014, it pioneered using zkSNARKs for blockchains. Its techniques ended up in Zcash, Tornado Cash, Railgun, and other deployed protocols for private payment on public blockchains. It started with last years winner...
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  10. Ian Miers@secparam
    Zerocash won the 2024 IEEE S&P Test of Time Award. Published in 2014, it pioneered using zkSNARKs for blockchains. Its techniques ended up in Zcash, Tornado Cash, Railgun, and other deployed protocols for private payment on public blockchains. It started with last years winner...
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  11. Christina Garman@CryptoGPS
    Christina Garman
    RT @zodl_co: The Zerocash paper has won a Test of Time award from @IEEEorg to recognize its substantial, lasting, broad, and currently relevant impact on computer science.
    Matthew Green @matthew_d_green
    Congrats to my co-authors Eran Tromer, @secparam, Christina Garman, @MadarsV, Allesandro Chiesa, @EliBenSasson for winning a “test of time” award at IEEE S&P for Zerocash!
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  12. Christina Garman@CryptoGPS
    Christina Garman
    RT @matthew_d_green: Congrats to my co-authors Eran Tromer, @secparam, Christina Garman, @MadarsV, Allesandro Chiesa, @EliBenSasson for winning a “test of time” award at IEEE S&P for Zerocash!
    Thorsten Holz @thorstenholz
    And the second one is „Zerocash: Decentralized Anonymous Payments from Bitcoin“ ( by @matthew_d_green and others
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  13. Thorsten Holz@thorstenholz
    Posts @thorstenholz
    And the second one is „Zerocash: Decentralized Anonymous Payments from Bitcoin“ ( by @matthew_d_green and others
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  14. Christina Garman@CryptoGPS
    Congrats to @arushi1250 for successfully defending her PhD today! (My first student!) If you haven't seen it, checkout her great work on improving the security/privacy of Tor with our Bento architecture. Very proud of the work she's done and great things she'll do in the future!
    Download
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  16. Christina Garman@CryptoGPS
    Please apply and join us, in person this year!
    mmazurek @ bsky.social @mmazurek_
    GREPSEC workshop for women and underrepresented grad students in S&P is back, live and in person, colocated with #usesec2023! Applications are due May 22, please help us spread the word!
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  17. mmazurek @ bsky.social@mmazurek_
    GREPSEC workshop for women and underrepresented grad students in S&P is back, live and in person, colocated with #usesec2023! Applications are due May 22, please help us spread the word!
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  18. Christina Garman@CryptoGPS
    Excited to finally release the paper we've been working on that explores the challenges of using SGX for real world applications! tl;dr, it's very hard, post-compromise recovery is hard, and we can leak secrets. Also a great resource for learning about SGX attacks and defenses!
    Stephan van Schaik @themadstephan
    Our survey of SGX attacks is out! Come learn about how SGX fails in real life. Check out our website including attacks on @SecretNetwork and @CyberLink PowerDVD.
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  20. Christina Garman@CryptoGPS
    Christina Garman
    RT @mmazurek_: Excited to announce that registration is open for GREPSEC V -- a workshop for early-stage grad students doing research in security and privacy who come from underrepresented populations. Women/NB/gender minorities, BIPOC, LGBTQ+, etc.
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  21. Christina Garman@CryptoGPS
    Congratulations!
    Mathias Payer @gannimo
    Huge congratulations to @HexHiveEPFL's @amipri @PurdueCS for passing her defense today. You may know her from fun work on finding unsafe variadic function calls, type safety violations for C++ applications or tightening the bounds for CFI!
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  22. Mathias Payer@gannimo
    Huge congratulations to @HexHiveEPFL's @amipri @PurdueCS for passing her defense today. You may know her from fun work on finding unsafe variadic function calls, type safety violations for C++ applications or tightening the bounds for CFI!
    Download
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  23. Christina Garman@CryptoGPS
    Christina Garman
    RT @DistributedDave: Congrats to my student Stephen Herwig for making the paper he led “Achieving Keyless CDNs with Conclaves” reproducible! Conclaves are containers of enclaves, allowing legacy apps (even multi-process with shared memory) to be deployed in secure enclaves. Joint work with @CryptoGPS
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  24. Christina Garman@CryptoGPS
    USENIX Security still has a few open slots for Lightning Talks! Please signup and help make this already great session even better! There will be prizes...
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