korrents

cryptography

Cryptographic construction and its limits -- obfuscation, permutations, and what a scheme is actually proved to withstand.

What people on korrents have said about cryptography, newest first — 7 positions from 2 people.

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  1. VB

    Vitalik Buterin quoted

    Local mixing, a new cryptographic obfuscation approach, is a risky bet resembling past failed attempts at white-box cryptography.

    This is a wild and risky bet; it sits on a graveyard of failed attempts at white-box cryptography .

    Obfuscation (Part III): Local Mixingvitalik.eth.limo

  2. VB

    Vitalik Buterin quoted

    A sufficiently large random reversible circuit is plausibly a secure cryptographic permutation, while a large random irreversible circuit collapses to only a few possible outputs.

    A big-enough random reversible circuit is plausibly a secure cryptographic permutation, a big-enough random irreversible circuit degenerates into having only a few possible outputs.

    Obfuscation (Part III): Local Mixingvitalik.eth.limo

  3. VB

    Vitalik Buterin quoted

    As of 2026, local mixing has not yet sufficiently eliminated correlations between original circuit values and their obfuscated counterparts.

    But, so far, mixing has not proved to be good enough. There ended up being too many correlations between values in \(C\) and values in the obfuscation that remained.

    Obfuscation (Part III): Local Mixingvitalik.eth.limo

  4. 6 weeks earlier
  5. BS

    Balaji Srinivasan quoted

    The blockchain is the most important development in history since the invention of writing, because it is a cryptographically verifiable, highly replicated, unfalsifiable, complete digital record.

    As incredible as it may sound, the blockchain is the most important development in history since the advent of writing itself, as it’s a cryptographically verifiable, highly replicated, unfalsifiable, and provably complete digital record of a system.

    The Network Statethenetworkstate.com 4th of 25 in this piece

  6. 13 days earlier
  7. VB

    Vitalik Buterin quoted

    Obfuscation is the most powerful primitive yet conceived in cryptography.

    The most powerful primitive that has been conceived in cryptography is obfuscation

    Obfuscation: building the final boss of cryptography (Part I)vitalik.eth.limo

  8. VB

    Vitalik Buterin quoted

    Building a secure obfuscation protocol is extremely difficult.

    it turns out that making a secure form of obfuscation is really really hard

    Obfuscation: building the final boss of cryptography (Part I)vitalik.eth.limo

  9. VB

    Vitalik Buterin quoted

    Current provably-secure indistinguishability-obfuscation schemes have galactically impractical runtimes.

    But within the good news, there is bad news: the run time is literally galactic

    Obfuscation: building the final boss of cryptography (Part I)vitalik.eth.limo