Censorship-Resilient and Confidential Collateralized Second-Layer Payments

ePrint Report: Censorship-Resilient and Confidential Collateralized Second-Layer Payments

Kari Kostiainen, Sven Gnap, Ghassan Karame

Permissionless blockchains are too slow for applications like
point-of-sale payments. While several techniques have been proposed to
speed up blockchain payments, none of them are satisfactory for application
scenarios like retail shopping. In particular, existing solutions like
payment channels require users to lock up significant funds and schemes
based on pre-defined validators enable easy transaction censoring. In this
paper, we develop Quicksilver, the first blockchain payment …

censorship confidential eprint report payments