str4d

Comments from Arborist call today: - Given that we want to enable representing "no memo key" in the note ciphertext, we will already have a type distinguisher byte. We could...

> One possibility here (that I have not analyzed in depth) is that the memo fee could be a function of the length of its retention We previously discussed similar...

Closing because we're going to pursue #627 instead.

In https://github.com/zcash/zips/pull/607#issuecomment-1707243952 @daira says: > For a transaction that needs an anchor, is it ever beneficial to enforce a higher confirmation depth when choosing inputs (shielded or not) than the...

Status update: I've tried several times over the last 5 months to get this to work, and even with `blocks_needed_until_alignment` the details are horrendous. I'll try and get my in-progress...

I think I also have an attempt at that somewhere locally (that I started before learning of @newpavlov's trait APIs). I'll see if I can dig it up.

[Rebased](https://github.com/RustCrypto/AEADs/compare/a23afb281026db92528d0ac6264de2f4646809c9..fcf134bd240aed7de20b0bb3e307d13df6f3b9ad) on latest `master`, and made a few tweaks to the impl (de-duplicating handling of complete tail blocks). Next I will force-push with my changes to use `blocks_needed_until_alignment`.

[Force-pushed](https://github.com/RustCrypto/AEADs/compare/fcf134bd240aed7de20b0bb3e307d13df6f3b9ad..ac660d55a55d6fce7a2da68d55a698ceb81e812a?w=1) to use `UhfBackend::blocks_needed_to_align`. I also added a test vector (generated before this PR) for a message that is larger than the SIMD fast path (so it exercises all parts...

The performance problem you are noticing is the cost of running the scrypt PBKDF on the user passphrase, which is automatically set at encryption time to a hardness level of...

Hmm, this would be tricky to do, and would not drop all the translation dependencies. I use Fluent for translations because it is much easier to work with than gettext...