Add `sign` method to <./rust-k256> about zk-nullifier-sig HOT 5 CLOSED

Depending on the answer I would raise an issue for changing the struct parts to AsRef or creating some facility methods for instantiation of the signature.

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It's good to have a plume signing function exposed!

from zk-nullifier-sig.

skaunov
should add that it's also needed to

• convert tests to integration,
• clean hex strings assertions for further comprehensibilty.
  (This well might demote AsRef issue to a nice to have thing.)

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@Divide-By-0 , what do you think should we provide a sign with given $r$ method? I'm hesitant since it'd encourage nonce reuse and consequence break of the protocol. So I'm inclined to hide such a method in a debug target.

from zk-nullifier-sig.

@Divide-By-0 , what do you think should we provide a sign with given r method? I'm hesitant since it'd encourage nonce reuse and consequence break of the protocol. So I'm inclined to hide such a method in a debug target.

Sounds good to me. You're right, reusing r would leak the secret key.

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