The Joy of Cryptography

This page summarizes the projects mentioned and recommended in the original post on news.ycombinator.com
Cryptography Security Luajit Kobo Haskell

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  • libsignal-protocol-java

    Discontinued Signal Protocol library for Java/Android

    • Signal message keys seem to include an IV. [1] Message keys are generated by passing a chain key through a key derivation function. [2] So you can also expand a shared secret established through Diffie-Hellman.

    Someone please correct me if I'm wrong.

    [1] https://github.com/signalapp/libsignal-protocol-java/blob/ma...

    [2] https://signal.org/docs/specifications/doubleratchet/Set0_1....

  • koreader

    An ebook reader application supporting PDF, DjVu, EPUB, FB2 and many more formats, running on Cervantes, Kindle, Kobo, PocketBook and Android devices

    • In case you haven't tried, I suggest using koreader. It has a good combination of a reliable crop and a usable reflow feature. Not ideal, but it's much better than constant zooming and moving the view around.

    https://koreader.rocks/

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

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  • ed25519

    Minimal ed25519 Haskell package, binding to the ref10 SUPERCOP implementation.

    • Those numbers are clearly nonsense; notice how the smaller ones don't even scale with key size. That paper is flawed. They obviously made a mistake.

    Look at the ed25519 benchmarks:

    https://ed25519.cr.yp.to/

    71000 signature verifications per second and 109000 signature generations per second on a quad-core machine. That is much, much faster than RSA.

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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