secp256k1
dhall
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secp256k1 | dhall | |
---|---|---|
9 | 10 | |
1,964 | 900 | |
1.9% | 0.6% | |
8.9 | 7.3 | |
3 days ago | 9 days ago | |
C | Dhall | |
MIT License | BSD 3-clause "New" or "Revised" License |
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.
secp256k1
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Apple’s 2½ year old iPhone 12 is 6% faster than the new Samsung Galaxy S23 Ultra
Just yesterday I was trying to generate a vanity pub key for Nostr. I was using https://github.com/kdmukai/nostr_vanity_npub which uses the python-nostr library which in turn uses https://github.com/bitcoin-core/secp256k1.
The test (single thread with -j1 flag) has some interesting result. Time taken to calculate 1 million keys:
i7 8650U=2m5s,
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Questions about generating a random number for ECDSA
However, I am trying to find the answer in the Bitcoin core source code, but it's kind of hard to read and could find an answer to it there.
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My Summer of Bitcoin Journey [2022]
I will be working on a Schnorr batch verification interface for the libsecp256k1. For those unfamiliar with libsecp256k1, it is a library (written in C) used by Bitcoin Core for low-level cryptographic operations. Initially, this library was a personal project of Pieter Wuille, which was later integrated into Bitcoin Core. You can listen to this Chaincode podcast where he talks about the early developments of this library.
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Usage Of Cryptonite Library In GHCJS
That's a binding to the C library https://github.com/bitcoin-core/secp256k1, so it causes the exact same issue OP had with Cryptonite.
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Binary GCD
The binary GCD has inferior performance to other approaches for big numbers because those min() comparisons require that you had to update the entire numbers at each step.
I submitted a writeup on the safegcd algorithm used by libsecp256k1 a while back, but it got the HN zomg-bitcoin-related quick flagging: https://github.com/bitcoin-core/secp256k1/blob/master/doc/sa...
Safegcd-like functions requires somewhat more iterations but most of the iterations need to only operate on the least significant bits of the numbers, which makes them faster in practice.
For safegcd-ish functions proving a hard upper bound on the number of require iterations is non-trivial. But it's useful to prove the bound in order to make constant time versions. Here is a writeup on our techniques for proving the upper bounds: https://github.com/sipa/safegcd-bounds#bounds-on-divsteps-it...
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Dev Meeting Transcript (May 28, 2021)
[4:23 PM] fdov: Soulless | Scamcoin.onlinehttps://github.com/bitcoin-core/secp256k1/issues/451
- How to use a library that was installed with autotools in a Makefile?
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Sha-256 input data type
And the one from libsecp256k1 (which underlies Bitcoin) and is optimized for HMAC: - https://github.com/bitcoin-core/secp256k1/blob/master/src/hash_impl.h
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We've come a long way! This is the load on my Raspberry Pi 4 validating a 6 hour streak of blocks on BCH's Scalenet (most of them 256MB) with 1100tx/s troughput. Cheers!
Just build and benckmark this https://github.com/bitcoin-core/secp256k1
dhall
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Why Functional Programming Should Be the Future of Software
```
If you mean installing Dhall's dependencies (https://github.com/dhall-lang/dhall-haskell/blob/master/dhal...), those aren't too crazy, but they're definitely not all "beginner level". Template Haskell in particular is quite heavyweight.
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Dhall: A Gateway Drug to Haskell
Ok, lets be specific. Lets write a comment to explain this function:
https://github.com/dhall-lang/dhall-haskell/blob/master/dhal...
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Nix: An idea whose time has come
I haven't tried it but apparently you can compile to Nix from Dhall:
> You can use this compiler to program Nix using the Dhall language. This package targets people who wish Nix had a type system.
https://github.com/dhall-lang/dhall-haskell/tree/master/dhal...
- Usage Of Cryptonite Library In GHCJS
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How to Learn Nix
If the problem is the syntax and people wants some other format that compiles to nix, there's dhall
https://dhall-lang.org/
https://github.com/dhall-lang/dhall-haskell/tree/master/dhal...
https://www.haskellforall.com/2017/01/typed-nix-programming-...
Dhall is a generic config language with some programming capabilities (but not turing complete) that can compile to json, yaml, and other formats, like in this instance nix.
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Google Summer of Code Summary: Dhall bindings to CSV
For my GSoC project, I built from scratch the dhall-csv package on the Dhall Haskell implementation Github Repository. Said package provides two executables, dhall-to-csv (which converts Dhall files into CSV files) and csv-to-dhall (which converts CSV files into Dhall files). It also provides Haskell libraries with the functions that translate bidirectionally between Dhall and CSV.
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Wuffs the Language
> If you add constraints (like not being able to feed the program to itself as is done in the halting problem and not allowing unbounded loops) then it is possible to determine if a program will terminate or not.
Dhall is a good example - https://github.com/dhall-lang/dhall-haskell .
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INTERCAL, YAML, And Other Horrible Programming Languages
See also https://dhall-lang.org/
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Common Nginx misconfigurations that leave your web server open to attack
That just seems like an even greater nightmare to me. Soon you would have to learn to read and understand a custom program in a Turing-complete language for each and every installation.
The proper solution is a DSL, just a better DSl. Or perhaps a DSL embedded in something like dhall <https://dhall-lang.org/>, but definitely not a general-purpose programming language.
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i want that
Dhall
What are some alternatives?
cryptohash-sha256 - Fast, pure and practical SHA-256 implementation
accelerate - Embedded language for high-performance array computations
constantine - Constantine: modular, high-performance, zero-dependency cryptography stack for proof systems and blockchain protocols.
accelerate-cuda - DEPRECATED: Accelerate backend for NVIDIA GPUs
safegcd-bounds - Bounds on divsteps iterations in safegcd
dhall-nix
blst - Multilingual BLS12-381 signature library
egison - The Egison Programming Language
RavenStash - Stash for Ravencoin-stuff.
haste-compiler - A GHC-based Haskell to JavaScript compiler
Ravencoin - Ravencoin Core integration/staging tree
hLLVM