secp256r1

[3052]

I am trying to find a replacement for crypto/ecdsa, since it will soon be useless:

https://pkg.go.dev/crypto/ecdsa@go1.25rc1#PrivateKey.D
https://pkg.go.dev/crypto/ecdsa@go1.25rc1#PublicKey.X
https://pkg.go.dev/crypto/ecdsa@go1.25rc1#PublicKey.Y

so I thought this module might good, but I need secp256r1 and this only has secp256k1

https://github.com/primefactor-io/ecc/tree/master/pkg/curves

[pmuens]

Hey @3052 thanks a lot for opening the issue.

Adding support for secp256r1 should be trivial as the only thing that needs to be added is a new file with the corresponding parameters (which can be found here: https://www.secg.org/sec2-v2.pdf (page 9)).

I'm not sure what your use case is, but this implementation was mostly done for educational purposes and wasn't audited for security. It should therefore not be used in production environments.

[3052]

yeah security is not an issue - I just need to perform ECDSA and ElGamal would be nice as well