Update RustCrypto dependencies to next release candidate and migrate to `hybrid-array`

[sinui0]

fizyk20/generic-array#138 has been merged. Once RustCrypto crates adopt it, eg cipher, we should take advantage of this to get rid of transmutes in our Block impl introduced in #59

[novacrazy]

It looks like the RustCrypto people are moving to hybrid-array instead of generic-array 1.0, so you may want to petition them to add these methods instead, if they haven't already.

[sinui0]

It looks like the RustCrypto people are moving to hybrid-array instead of generic-array 1.0, so you may want to petition them to add these methods instead, if they haven't already.

Thanks for the heads up. It does seem their intention is to go straight to hybrid-array, I was assuming they would bump to generic-array 1.0 first.

[sinui0]

RustCrypto/utils#951

[mahmudsudo]

hi can i take on this ?

[themighty1]

@mahmudsudo, sry to only now get back to you. It's always best to chat with us on Discord first. Due to bot acitivity it's hard to distinguish genuine interest these days.
Are you still interested in this issue?

[mahmudsudo]

Yes very much

[themighty1]

@mahmudsudo , thanks, I assigned it to you now.

[sinui0]

Some more information on this issue:

RustCrypto is transitioning to hybrid-array instead of using generic-array. Dependent crates are still in the rc stage, but I feel comfortable updating now.

We should update our RustCrypto dependencies, eg cipher, to the latest version which uses hybrid-array.