In March 2021, Electric Coin Co. engaged NCC Group to perform a review of the upcoming network protocol upgrade NU5 to the Zcash protocol (codenamed “Orchard”). The review was to be performed over multiple phases: first, the specification document changes and the relevant ZIPs, then, in June 2021, the implementation itself.
The Public Report for this review may be downloaded below:
Jennifer Fernick is the Global Head of Research at NCC Group. She can be found on Twitter at @enjenneer.