Commits on Jan 18, 2024

1. ecdsa: remove SignPrimitive and VerifyPrimitive traits …

   The backstory of these traits was once upon a time we didn't yet have
   the trait structure in place to express algorithms like ECDSA signing
   and verification generically, so each crate (at the time just `k256` and
   `p256`) had a nearly duplicated implementation of ECDSA, with `k256`
   including tweaks for low-S normalization.
   
   Now the `ecdsa` crate contains fully generic implementations of both
   algorithms, and with the `EcdsaCurve` trait, carries a `NORMALIZE_S`
   preference, so these traits are just needless indirection at this point.
   
   This removes the traits, converting non-trivial methods into static
   functions in the `hazmat` module, namely `sign_prehashed_rfc6979`.

   

   tarcieri committed Jan 18, 2024
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