Privacy Technologies for Bitcoin

The Zerocash Team, Greg Maxwell, and LeastAuthority on June 15, 2015 Introduction The world still needs Zerocash even though we now have Confidential Transactions. A message from Zooko Wilcox-O’Hearn: At Least Authority, our mission is to bring verifiable end-to-end security to every user of the Internet. As a part of this mission, we are working on something that we can’t …

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A Bug in libsnark

Zooko Wilcox-O’Hearn, Alessandro Chiesa, Eli Ben-Sasson, Eran Tromer, Madars Virza on May 16, 2015 A statement from Least Authority Zooko Wilcox-O’Hearn writing: About us At Least Authority, some of the security audits that we’ve performed on behalf of others, and here is a contest we organized for others to find security flaws in our flagship product. We also notified …

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BLAKE2: “Harder, Better, Faster, Stronger” Than MD5

Zooko Wilcox-O’Hearn on March 21, 2014 Best read while listening to Daft Punk: Harder, Better, Faster, Stronger Why use BLAKE2 instead of Skein, Keccak (SHA-3), MD5, or SHA-1 as a secure hash function? BLAKE was the best-rated hash function in the SHA-3 competition NIST, in the final report of the SHA-3 competition, said this about the finalists (which included BLAKE, …

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