I’m not sure if there are any technical blockers with adding secp256r1 (P-256) to the supported threshold ECDSA curves, but I’ve been hitting limitations trying to implement web standards that require it. Most OAuth 2.0 implementations and JWT libraries default to ES256 signatures, which need the P-…

Hi, thanks for raising this! You’re absolutely right that threshold ECDSA support for secp256r1 (P-256) isn’t available in the IC stack yet. The good news is that the cryptographic protocol already supports P-256 at a lower level. What’s still missing is integration into the higher layers of the IC…

Cross-posting as it’s the same topic: [image] Can we please get threshold ECDSA signing support for secp256r1 (P-256) on ICP? Rust Following up on the icert post ICert , Decentralized Cetificate Authority ICP really needs threshold ECDSA support for secp256r1 …

I believe that threshold ECDSA P-256 support will be a significant advancement in the digital identity space. The compatibility with NIST standards in particular opens up applications for various use cases. I’m looking forward to the progress on the implementation.

This is the best news I’ve heard recently. I’m really looking forward to the implementation.

Plans for secp256r1 (P-256) threshold ECDSA support?

Developers

ilbert September 22, 2025, 6:05pm 2

Cross-posting as it’s the same topic:

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Can we please get threshold ECDSA signing support for secp256r1 (P-256) on ICP? Rust Functional-Programming , candid , Discussing , community-consideration , rust	1	239	September 22, 2025
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Plans for secp256r1 (P-256) threshold ECDSA support?

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