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Ian Miers
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Ian Miers
@secparam
CS Prof. Security and applied cryptography. Some highlights: Zerocash (zcash, et al. ), Zexe (Aleo, Aztec, etc ), zk-creds/zk-promises(...)
Washington DC/ UMD
cs.umd.edu/~imiers/
Joined April 2012
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  • user avatar
    Ian Miers
    @secparam
    Oct 4, 2021
    At 15:40 BGP started learning at a geometric rate, at 15:52 UTC it became sentient. At 15:54, thinking that Asimov's 3 laws of robotics sounded like a decent idea, BGPnet shut dowm Facebook.
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    Ian Miers
    @secparam
    Aug 10, 2021
    There've been a lot of conversations about Apple's CSAM scanning and its impossible to follow. I made a nice summary.
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  • user avatar
    Ian Miers
    @secparam
    Nov 21, 2020
    The risks of multiple implementations of consensus critical code 👇👇👇
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    Ian Miers
    @secparam
    May 1, 2025
    Google announced they will support privacy preserving age verification via zero-knowledge proofs. You prove you have a signed digital copy of a drivers license and it says you are over 18 without revealing anything about you (name, birthdate, etc)
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    It’s now easier to prove age and identity with Google Wallet
    From blog.google
    127K
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    Ian Miers
    @secparam
    Jul 13, 2020
    Most universities reopening plans would not pass IRB review for human experimentation.
  • user avatar
    Ian Miers
    @secparam
    Apr 13, 2021
    From the students in my Intro To Security class:
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    Ian Miers
    @secparam
    Oct 30, 2025
    There's no such thing as Fully-Homomorphic Decryption. Anytime you see a system using FHE to compute on your sensitive data, remember: someone has the key. If its not you, do you trust them?
    155K
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    Ian Miers
    @secparam
    Oct 14, 2018
    New paper. ZEXE: Zero-knowledge Execution.Think of it like a private OS for the blockchain. Can build private tokens, smart contracts, and maybe even a DEX. Joint work with @matthew_d_green @ebfull @1HowardWu @zkproofs and Alessandro Chiesa eprint.iacr.org/2018/962.pdf
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    Ian Miers
    @secparam
    Feb 25, 2018
    iota is rapidly turning into the scientology of crytpocurrencies.
  • user avatar
    Ian Miers
    @secparam
    Nov 9, 2025
    Privacy is having a moment on crypto twitter. Reminder: If your zkSNARK requires sending data to someone else's provers, it's neither zero-knowledge, non-interactive, nor yours.
    42K
  • user avatar
    Ian Miers
    @secparam
    Nov 1, 2025
    Glad Zcash is exciting again. It's come a long way since Matt and I started working on it as a "make Bitcoin private" project. One of the coolest things I've worked on in my life. And a tough few years when private payments seemed to only matter in the dark corners of the web.
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    Matthew Green
    @matthew_d_green
    Nov 1, 2025
    Hey I’m glad everyone’s excited about Zcash again! It’s one of the coolest things I’ve ever worked on in my life.
    26K
  • user avatar
    Ian Miers
    @secparam
    May 2, 2019
    Excited to announce I’ll be taking an Assistant Professor position at UMD starting Fall 2020. (For the next few months I plan to work on some real-world issues around privacy on Blockchains.)
  • user avatar
    Ian Miers
    @secparam
    Apr 22, 2018
    Hopkins CS students got a 0 on the final curved to an A by getting everyone to not take the final. Seems like a prisoners dilemma right? The trick was changing the game: they all stood outside the room. If anyone broke the pact, they all take the exam freakonomics.com/2013/02/20/how…
  • user avatar
    Ian Miers
    @secparam
    Aug 9, 2021
    How would Apple not be able to add things to the hash list/ change which list they use? NMEC would need to publish some root hash of their list and Apple would have to bind it into their client software in a way even they couldn't change. Thats a tall order.
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