Kobi Gurkan

@kobigurk

applied crypto, security, experimental things.

Israel
Vrijeme pridruživanja: listopad 2008.

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  1. Prikvačeni tweet
    16. srp 2018.

    I just published “How toxic is the waste in a zkSNARK trusted setup?”

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  2. proslijedio/la je Tweet
    2. velj

    Latest zkStudy Club video is up - catch up with about his work on Airscript - a language for describing Algebraic Intermediate Representation for STARKs.

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  3. proslijedio/la je Tweet
    31. sij

    Thrilled to share the implementation of the Perpetual Power of Tau on an Intel SGX and also happy to have been able to be part of the ceremony

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  4. proslijedio/la je Tweet
    29. sij

    We just proposed EIP-2494 for Baby Jubjub, a twisted Edwards elliptic curve that allows elliptic curve cryptography (such as the Pedersen hash or EdDSA) inside zk-SNARK circuits. Follow and contribute to the proposal at

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  5. proslijedio/la je Tweet
    28. sij
    Odgovor korisnicima

    Force each commitment to have roots where we aren’t interested in the evaluation, take a random linear combination of them using the multi-point strategy of KZG10 and prove the sum has roots at all points

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  6. 28. sij
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  7. 28. sij

    I think becoming a podcast about Zero Knowledge surpasses even the best retcons done in DC comics. Great episode :)

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  8. 24. sij

    That's a really cool tutorial! After having a workshop on "0 to mixer", it's been itching me to create a "0 to groth16" workshop, to get a not-too-bad implementation from scratch.

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  9. proslijedio/la je Tweet
    23. sij

    📣In this week’s episode, we chat w of about launching a recursive snark based incentivised testnet, updates on the working SNARKitecture, a recap of recursive SNARKs and what's next! 🙌 cc:

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  10. proslijedio/la je Tweet
    22. sij

    New versions of genSTARK and AirScript are out: AirScript now can be compiled into AirAssembly and supports naming of input and static registers.

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  11. proslijedio/la je Tweet
    17. sij

    Excited that our paper on secure inference for convolutional neural networks is finally online! TL;DR: our protocol produces predictions in just a few seconds, and uses techniques from ML to optimize the CNN for efficiency within 2PC Code here:

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  12. proslijedio/la je Tweet
    13. sij

    New $3k bounty for improving cryptanalysis on the Legendre PRF: Improve on algo to win

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  13. 11. sij

    AZTEC Ignition Participant #5 | Ethereum Address: 0x69dbe791cffd6295a1327f0d2015eaf6e2f52c1d | Transcript Hash: 0x4159f221bb04914c08d8d68c4dc1acf3f9f09d597ad9944f4b460de417d27a34 Additionally, here's a signed attestation:

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  14. proslijedio/la je Tweet
    9. sij

    New RSA assumptions are needed for VDFs. Ethereum Foundation supports analysis of them with a number of bounties.

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  15. 8. sij

    Hm, that's just the table of contents :P

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  16. 8. sij

    At the very least, the secure multi-party computation section has become substantial

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  17. 8. sij

    There's a new version of "A Graduate Course in Applied Cryptography" from and Victor shoup!!

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  18. 7. sij

    Please help them :) Zexe is a wonderful set of libraries that a lot of people in the crypto space can benefit from. Not only if you're interested in the Zexe construction! It has many other useful tools.

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  19. 7. sij

    Does anyone have experience with QEMU for ARM - for the thumb, thumb2 and just ARMv7 instruction sets and could give some tips on how to set this up? 🙏

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  20. proslijedio/la je Tweet
    27. pro 2019.

    We have a spare for sale. Please DM if you are interested.

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  21. proslijedio/la je Tweet
    26. pro 2019.
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