Quantum resistant blockchain and cryptocurrency, the full analysis in seven parts.
17 Dec 2019 3 minute read 1 comment Allen Walters
NIST stands for the National Institute of Standards and Technology and is part of the United States Department of Commerce. The range of subjects it oversees is huge, but one subject is of great importance for cryptography, especially public key cryp...
16 Oct 2019 7 minute read 1 comment Allen Walters
Bitcoin Q&A: “Quantum supremacy” video here. Some thoughts on the statements made in this video: To start things off, Antonopoulos downplays the milestone of quantum supremacy. As if this is nothing special and just a marketing trick. But many have b...
14 Oct 2019 2 minute read 0 comments Allen Walters
You can read part A here. z = The time we have until a quantum computer of a critical level has materialized. Estimations are all over the place. From a couple of years to never. Z is the great unknown. q = is the margin we should deduct from z as a...
13 Oct 2019 3 minute read 0 comments Allen Walters
To make a complete and realistic estimate of the expected timeline for upgrading and coin-migration we use Mosca’s theorem of risk determination. For blockchain, the theorem can be adjusted as follows: The sum of v, w, x, and y should obviously be s...
24 Sep 2019 3 minute read 2 comments Allen Walters
Since Google and NASA have reached quantum supremacy after a year collaboration this week, the discussion about quantum computing and blockchain security has increased and articles on the subject popping up left and right. In the very informative art...
21 Sep 2019 1 minute read 4 comments Allen Walters
As can be read in this article. Although quantum supremacy simply means that at least 1 specific problem has been proven to be solved by a quantum computer that can't be solved (in a realistic timeframe) by any existing classical computer, it is a ve...
4 Sep 2019 2 minute read 1 comment Allen Walters
You can read part 1 here and part 2 here and part 3 here. The bitcoin wiki page makes the following statement: “Bitcoin already has some built-in quantum resistance.” This is not correct. Hashed public keys are no protection: It is often said that n...
3 Sep 2019 2 minute read 2 comments Allen Walters
You can read part 1 here and part 2 here To make a complete and realistic estimate of the expected timeline for upgrading and migration we use Mosca’s theorem of risk determination. For blockchain, the theorem can be adjusted as follows: v = selecti...
2 Sep 2019 5 minute read 0 comments Allen Walters
You can read the first part here. (Development timeline and advice from the NSA, NIST, the NAS, Federal Register) The reason they advise starting to seriously prioritize the development, standardization, and deployment of post-quantum cryptography...
31 Aug 2019 4 minute read 0 comments Allen Walters
If you have read part 3 of the series “Quantum resistant blockchain and cryptocurrency, the full analysis in seven parts.”, you could decide to skip the first part of this article and go straight to the header: “To make a complete and realistic estim...
