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UID:pretalx-romhack-camp-2026-XJTACK@cfp.romhack.io
DTSTART;TZID=CET:20261002T161000
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DESCRIPTION:Building private payments is a fascinating technical challenge.
  Somehow\, we have to hide some combination of three things: who is paying
 \, who is being paid\, and how much. All without letting anyone print infi
 nite money. This talk is about the cryptographic machinery and approaches 
 people have come up with to make private payments possible and practical t
 oday. We focus on two projects\, Monero and Zcash\, which are among the mo
 st mature and influential systems.\n\nIn the talk we will start from a few
  simple cryptographic primitives: additively homomorphic commitments\, rin
 g signatures\, stealth addresses\, and zero-knowledge proofs. Then we diss
 ect how transactions work in both Monero and Zcash\, highlighting differen
 ces and similarities.\n\nWe close with a short\, uncomfortable observation
 : when a system hides payments well\, a forged proof is indistinguishable 
 from an honest one\, leaving us always just one proof away from trouble.
DTSTAMP:20260921T190456Z
LOCATION:STAGE 1 (Section 9)
SUMMARY:Just one proof away: the cryptography behind private payments - Gio
 rgio Dell'Immagine
URL:https://cfp.romhack.io/romhack-camp-2026/talk/XJTACK/
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