gridiron
constantine
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gridiron | constantine | |
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1 | 14 | |
17 | 251 | |
- | - | |
4.7 | 8.6 | |
3 months ago | 15 days ago | |
Rust | Nim | |
Apache License 2.0 | GNU General Public License v3.0 or later |
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gridiron
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Constant-time comparison correctness
I worked on a library a few year ago that may be of interest. See https://github.com/IronCoreLabs/gridiron/blob/0712c0211ee510a6073b820a9fb110832ebb5b43/src/digits/constant_time_primitives.rs
constantine
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A beginner's guide to constant-time cryptography (2017)
Percival cache attacks on Hyperthreading.
I go over some examples here: https://github.com/mratsim/constantine/issues/358#issuecomme...
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D Programming Language
`when myCondition():` instead of `if myCondition:` is done at compile-time.
Alternatively you can use a `static:` code block to force compile time evaluation. Or tag a function {.compileTime.} or tag function inputs with `static` modifier.
It is possible to create a compiler or an assembler running fully in Nim macros as well:
- https://github.com/mratsim/constantine/blob/master/constanti... (all that file runs at compile-time)
You can also implement Continuation-Passing-Style transformation at compile-time:
- Fast constant-time pairing or elliptic curve based cryptography (Nim/C)
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Matrix Multiplication Using Only Addition
At a glance this sounds like a re-discovery of addition chains and using them to construct Pippenger algorithm. But applied to matrices instead of group elements.
See: https://github.com/mratsim/constantine/issues/37
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Elliptic Curve Cryptography Explained
I usually explain extension fields as similar to complex numbers with regards to reals.
I've collected a lot of extension fields references while working on my own implementation: https://github.com/mratsim/constantine/tree/master/constanti...
The best likely being
- Arithmetic of Finite Fields
- Constant-Time Big Numbers: An Introduction
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just a question that has been lingering on my mind
Regarding your first question, you don't need to attack the hard-drive, for non constant-time crypto you can read power consumption or electromagnetic traces when the secret key is used to reconstruct it: - https://github.com/mratsim/constantine/wiki/Constant-time-arithmetics
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Const [pdf]
Unfortunate name collision with my constant-time pairing-based cryptography library :/.
https://github.com/mratsim/constantine
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DSL for Zero Knowledge Proofs
KZG for sure yes, I actually already started implementing them: https://github.com/mratsim/constantine/tree/c2d716b/research/kzg_poly_commit
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How is Elliptic Curve Cryptography Encryption Fast?
I have a small write-up on various details of elliptic curve crypto implementation here: https://github.com/mratsim/constantine/tree/master/constantine/elliptic
What are some alternatives?
algebra - Libraries for finite field, elliptic curve, and polynomial arithmetic
blst - Multilingual BLS12-381 signature library
notecalc3 - NoteCalc is a handy calculator trying to bring the advantages of Soulver to the web.
nim-stint - Stack-based arbitrary-precision integers - Fast and portable with natural syntax for resource-restricted devices.
kalk - Scientific calculator with math syntax that supports user-defined variables and functions, complex numbers, and estimation of derivatives and integrals
secp256k1 - Optimized C library for EC operations on curve secp256k1
thermite - Thermite SIMD: Melt your CPU
noir - Noir is a domain specific language for zero knowledge proofs
Practical-Cryptography-for-Developers-Book - Practical Cryptography for Developers: Hashes, MAC, Key Derivation, DHKE, Symmetric and Asymmetric Ciphers, Public Key Cryptosystems, RSA, Elliptic Curves, ECC, secp256k1, ECDH, ECIES, Digital Signatures, ECDSA, EdDSA
mbedTLS - An open source, portable, easy to use, readable and flexible TLS library, and reference implementation of the PSA Cryptography API. Releases are on a varying cadence, typically around 3 - 6 months between releases.
ecc - elliptic-curve cryptography
systemd - The systemd System and Service Manager