Remove cryptonite dependency

[edilmedeiros]

I just learned that Cryptonite's repo was archived last year.

This is a potential security issue for the library.

I briefly inspected the source code and saw that Cryptonite is being used for hashing, HMAC, and key derivation.
libsecp256k1 implements some hashing and HMAC functions, but not all the necessary functionality for this lib.

Yet, I believe there's no cryptographic library in Haskell on par with Cryptonite.

[the-headless-ghost]

I think botan bindings will eventually replace Cryptonite. https://haskell-cryptography.org/blog/botan-first-milestone/

[edilmedeiros]

I see that 1f67df1 changes the dependency to crypton.

[jprupp]

crypton is a fork of cyrptonite. I still prefer that we move to botan. The botan bindings are maturing, and there’s a possibility that the developers decide to expose an API similar to that of cyrptonite, in order to make the transition of packages like this one straightforward. I will close this ticket for now, as the cryptonite dependency has been removed.