Module secp256kfun::hash

Generally useful utilities related to hashing.

In general, things in here are defined against the Digest trait from the RustCrypto project.

Traits

AddTag	Trait for things that can domain separate themselves.
HashAdd	Extension trait for digest::Digest to make adding things to the hash convenient.
HashInto	Anything that can be hashed.
Tagged	Extension trait to "tag" a hash as described in BIP-340.