* [bitcoindev] secp256k1lab: a Python library for prototyping
@ 2025-04-01 8:41 Jonas Nick
2025-04-01 13:01 ` [bitcoindev] " waxwing/ AdamISZ
0 siblings, 1 reply; 2+ messages in thread
From: Jonas Nick @ 2025-04-01 8:41 UTC (permalink / raw)
To: bitcoindev
Hello list,
We're pleased to announce the initial release of secp256k1lab, an INSECURE
implementation of the secp256k1 elliptic curve and related cryptographic schemes
written in Python, intended for prototyping, experimentation and education.
https://github.com/secp256k1lab/secp256k1lab
Features:
- Low-level secp256k1 field and group arithmetic.
- Schnorr signing/verification and key generation according to BIP-340.
- ECDH key exchange.
We developed secp256k1lab as part of our work on the ChillDKG work-in-progress
BIP [0]. It is based on the secp256k1 implementation in the Bitcoin Core test
framework.
Our goal was to avoid including yet another custom Python implementation of the
secp256k1 curve in the ChillDKG reference code. Several existing BIPs (340, 324,
327, and 352) already contain custom and sometimes subtly diverging
implementations of secp256k1. This library aims to provide a single, consistent
interface for secp256k1-related cryptographic specifications.
At the moment, secp256k1lab is included in the ChillDKG repository as a subtree.
It remains an open question what would be the best approach for including ChillDKG
(with the secp256k1lab dependency) into the bips repository [1].
We welcome your feedback and contributions to this project.
Best regards,
The current secp256k1lab maintainers: Sebastian Falbesoner, Jonas Nick, Tim
Ruffing
[0] https://github.com/BlockstreamResearch/bip-frost-dkg
[1] https://groups.google.com/g/bitcoindev/c/HE3HSnGTpoQ/m/Y2VhaMCrCAAJ
(We renamed secp256k1proto to secp256k1lab)
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^ permalink raw reply [flat|nested] 2+ messages in thread* [bitcoindev] Re: secp256k1lab: a Python library for prototyping
2025-04-01 8:41 [bitcoindev] secp256k1lab: a Python library for prototyping Jonas Nick
@ 2025-04-01 13:01 ` waxwing/ AdamISZ
0 siblings, 0 replies; 2+ messages in thread
From: waxwing/ AdamISZ @ 2025-04-01 13:01 UTC (permalink / raw)
To: Bitcoin Development Mailing List
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Thanks for this.
Seems like a great initiative for, as you say, prototyping and education.
(though iiuc your primary motive was standardising proposal "reference"
code).
I'm guessing that things like MuSig2 and/or adaptors would be out of scope
of this project? (i.e. you are only supplying the foundational ECC
operations here.. except you are providing Schnorr signatures). Those are
things that ate up time for me when I was prototyping stuff (like
"pathcoin" for example), hence the Q.
Regards,
AdamISZ/waxwing
On Tuesday, April 1, 2025 at 5:51:37 AM UTC-3 Jonas Nick wrote:
> Hello list,
>
> We're pleased to announce the initial release of secp256k1lab, an INSECURE
> implementation of the secp256k1 elliptic curve and related cryptographic
> schemes
> written in Python, intended for prototyping, experimentation and education.
>
> https://github.com/secp256k1lab/secp256k1lab
>
> Features:
>
> - Low-level secp256k1 field and group arithmetic.
> - Schnorr signing/verification and key generation according to BIP-340.
> - ECDH key exchange.
>
> We developed secp256k1lab as part of our work on the ChillDKG
> work-in-progress
> BIP [0]. It is based on the secp256k1 implementation in the Bitcoin Core
> test
> framework.
>
> Our goal was to avoid including yet another custom Python implementation
> of the
> secp256k1 curve in the ChillDKG reference code. Several existing BIPs
> (340, 324,
> 327, and 352) already contain custom and sometimes subtly diverging
> implementations of secp256k1. This library aims to provide a single,
> consistent
> interface for secp256k1-related cryptographic specifications.
>
> At the moment, secp256k1lab is included in the ChillDKG repository as a
> subtree.
> It remains an open question what would be the best approach for including
> ChillDKG
> (with the secp256k1lab dependency) into the bips repository [1].
>
> We welcome your feedback and contributions to this project.
>
> Best regards,
> The current secp256k1lab maintainers: Sebastian Falbesoner, Jonas Nick, Tim
> Ruffing
>
> [0] https://github.com/BlockstreamResearch/bip-frost-dkg
> [1] https://groups.google.com/g/bitcoindev/c/HE3HSnGTpoQ/m/Y2VhaMCrCAAJ
> (We renamed secp256k1proto to secp256k1lab)
>
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