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Let's say I wanted to write an implementation of ECDSA from scratch to better understand it. I can't find a raw, non-abstract explanation anywhere. I tried tracking down the sources on the wiki article and going through some posts and explanations on here, but I can't find anything of substance. Where do I find basic information on this?

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If you have access to IEEE Xplore or any other digital libraries that hold technical papers, I would say that is your best bet, as they usually explain concepts or implementations mathematically and algorithmically. If not, I found somebody's thesis online as a start, maybe he cites potential free resources available in the bibliography.

http://www.nicolascourtois.com/bitcoin/thesis_Di_Wang.pdf

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  • Thanks, I will check it out, unfortunately I don't have access to IEEE at the moment.
    – VSO
    Jan 22 '18 at 14:31

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