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Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Backstage: cryptographic R&D internship at Cossack Labs
4 projects | dev.to | 12 May 2021
Now, the real world work starts. We introduce interns to the world of popular cryptographic libraries, help them to make their first OSS contributions, and let them practice with our cryptographic library Themis which provides a high-level crypto API on 14 languages.
Initial impact report about this week's EdDSA Double-PubKey Oracle attack in 40 affected crypto libs
6 projects | reddit.com/r/crypto | 18 Jun 2022
Feature request submitted to libsodium: https://github.com/jedisct1/libsodium/issues/11916 projects | reddit.com/r/crypto | 18 Jun 2022
Dangerous toys: Anything to ed25519 (SSH Keys)
4 projects | news.ycombinator.com | 9 Feb 2022
This article  has a good explanation of why clamping is necessary. But the process is very simple, you just generate 256 random bits, clear the three lowest order to avoid small subgroup attacks, then clear the highest order and set the second highest order to avoid side-channel attacks which may occur if an implementation isn’t constant-time. The Libsodium source shows this pretty clearly: , lines 18-23.
Information and learning resources for cryptography newcomers
11 projects | reddit.com/r/cryptography | 31 Jan 2022
monero-python 0.99 is released, testers welcome!
3 projects | reddit.com/r/Monero | 20 Dec 2021
Finally I managed to replace the slow pure-Python reference implementation of Ed25519 cryptography with pynacl which is a binding to libsodium, the industry standard lightning-fast C library.
When you only know how to write brute force algorithms.
3 projects | reddit.com/r/ProgrammerHumor | 26 Oct 2021
Very, very occasionally, it's actually possible to optimize something better than the compiler does. EG libsodium's elliptic curve scalar multiplication routines for Sandy Bridge.
Rust Ephemeral Encrypted Containers/FS (maybe)
3 projects | dev.to | 17 Oct 2021
Official GitHub repo for this library can be found here - https://github.com/jedisct1/libsodium3 projects | dev.to | 17 Oct 2021
website - https://libsodium.org/
3 projects | reddit.com/r/C_Programming | 21 May 2021
RHash is a great place to start. Easy-to-read cryptographic hash functions. Libsodium is your go-to though for cryptographically secure hash and encryption functions.
OpenSSL will release a HIGH severity issue fix on 25th
3 projects | news.ycombinator.com | 22 Mar 2021
That's what I thought, too, but it looks like at least libsodium implements constant-time array comparison in C.
What are some alternatives?
OpenSSL - TLS/SSL and crypto library
Crypto++ - free C++ class library of cryptographic schemes
mbedTLS - An open source, portable, easy to use, readable and flexible SSL library
Bcrypt - Modern(-ish) password hashing for your software and your servers
libhydrogen - A lightweight, secure, easy-to-use crypto library suitable for constrained environments.
Botan - Cryptography Toolkit
DOMPurify - DOMPurify - a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMPurify works with a secure default, but offers a lot of configurability and hooks. Demo:
LibTomCrypt - LibTomCrypt is a fairly comprehensive, modular and portable cryptographic toolkit that provides developers with a vast array of well known published block ciphers, one-way hash functions, chaining modes, pseudo-random number generators, public key cryptography and a plethora of other routines.
Tiny AES128 in C - Small portable AES128/192/256 in C
cryptography - cryptography is a package designed to expose cryptographic primitives and recipes to Python developers.
LibreSSL - LibreSSL Portable itself. This includes the build scaffold and compatibility layer that builds portable LibreSSL from the OpenBSD source code. Pull requests or patches sent to [email protected] are welcome.