blst
constantine
| blst | constantine | |
|---|---|---|
| 3 | 14 | |
| 435 | 255 | |
| 1.1% | - | |
| 8.5 | 8.4 | |
| about 1 month ago | 2 days ago | |
| Assembly | Nim | |
| Apache License 2.0 | GNU General Public License v3.0 or later |
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blst
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[AMA] We are EF Research (Pt. 8: 07 July, 2022)
cryptographic versus non-cryptographic: Complex low-level BLS12-381 cryptography is encapsulated away in libraries. Péter can for example interact with the BLST API when working on Verkle trees.
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blst VS ecc - a user suggested alternative
2 projects | 26 Jan 2022
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Sha-256 input data type
Here is one I use in production (the same as OpenSSL but just SSE3, audited by NCC): - https://github.com/supranational/blst/blob/master/src/sha256.h - https://github.com/supranational/blst/blob/5435c307e5b3540a6600b816a6d01bdb13a81869/src/no_asm.h#L1089 - https://github.com/supranational/blst/blob/master/src/asm/sha256-x86_64.pl
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?
secp256k1 - Optimized C library for EC operations on curve secp256k1
nim-stint - Stack-based arbitrary-precision integers - Fast and portable with natural syntax for resource-restricted devices.
mev-boost - MEV-Boost allows Ethereum validators to source high-MEV blocks from a competitive builder marketplace
zkevm-circuits
noir - Noir is a domain specific language for zero knowledge proofs
Nova - Nova: High-speed recursive arguments from folding schemes
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
cherrybomb - Stop half-done APIs! Cherrybomb is a CLI tool that helps you avoid undefined user behaviour by auditing your API specifications, validating them and running API security tests.
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