EIPsInsight

Loading Experience

Preparing your insights...

Loading0%
EIPsInsightEIPsInsight
Sign in
All protocol calls
PreviousNext
PQTS2026-05-13_008

PQ Transaction Signatures #008

2026-05-13 2 decisions 185 transcript lines

Transcript

Ask about this call

Answered from this call's summary and transcript only.

AI-generated — verify against the recording.

Call summary

Decisions
  • •CL uses stateful XMSS; EL uses stateless SPHINCS+-based scheme — confirmed separate PQ algorithms per layer — 00:28:22
Highlights
  • Organizational:
    • ·One presentation cancelled/postponed; next call in two weeks — 00:25:17
    • ·Recommended viewing: Justin Drake and Danbon panels on quantum timelines from ETHPrague and ETH Summit (videos available) — 00:25:32
  • El Cl Pq Algorithm Split:
    • ·EL and CL will NOT use the same PQ algorithm: CL can use stateful XMSS; EL requires stateless scheme (SPHINCS+) — 00:28:22
  • Sphincs Plus Hypertree Pruning:
    • ·Conduition presented 'hypertree pruning': trades SPHINCS+ signature budget for faster KeyGen/signing, with no verifier changes required — 00:07:04
    • ·Maximal root-tree pruning yields ~500x faster KeyGen (SLH-DSA-128S); budget drops from 2^64 to 2^55 — 00:14:51
    • ·Balanced pruning (equal pruning across all layers) is optimal for signing speedup; halving keys halves signing and KeyGen time — 00:17:23
    • ·Key drawbacks: pruned/unpruned keys are incompatible; reuse across pruning modes risks forgery; observable fingerprinting of pruned wallets — 00:20:59
    • ·Primary use case: constrained hardware wallets (Ledger/Trezor take minutes for SLH-DSA); acceptable budget reduction for low-frequency signers — 00:19:46
Action Items
  • •conduition — Conduition to implement hypertree pruning in software wallet and engage Ledger/Trezor on hardware wallet integration — 00:26:48

Meeting chat12

  • Philip Jonsén

    hi

  • Antonio Sanso

    hi

  • Matteo Vena | Riva Labs

    Great presentation thanks!

  • Ak36

    Did you also bench the masked version?

  • Philip Jonsén

    can you tell me a Little about what conduition does? 🙂

  • Antonio Sanso

    Replying to "can you tell me a Li..." In which sense ?

  • Ak36

    By masked version I meant something which would be resistant to side channel attacks?

  • alan xu

    Will both EL and CL use the same PQTS algorithm(SPHINCS)?

  • Ak36

    I see thanks

  • Jeevan Siddharth

    Thanks , Great Presentation , will go thru it !

  • Ak36

    Thanks great presentation. Will dig in!

  • Oleg Lodygensky

    thanks

Key decisions

  • CL uses stateful XMSS; EL uses stateless SPHINCS+-based scheme — confirmed separate PQ algorithms per layer

    Separate PQ algorithms will be used for CL and EL layers.

  • Conduition to implement hypertree pruning in software wallet and engage Ledger/Trezor on hardware wallet integration

    Conduition will implement hypertree pruning in software wallets and work with Ledger/Trezor on hardware wallet integration.

Links