k256: enable endomorphisms by default #213
Merged
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The reason this wasn't enabled-by-default before was due to a lingering US patent. However, as noted on #211, that patent just expired 🎉
The
bitcoin-core/secp256k1
library is also pursuing a full switch to endomorphisms: bitcoin-core/secp256k1#826For now this commit just switches on the feature by default, but in the future we can eventually rip out the non-endomorphism code and remove the feature entirely.