passphrase2pgp VS Pass4Win

As far as I'm aware, Mnemonikey is the first of its kind, rhyming only with the related but conceptually different passphrase2pgp tool, from which I drew my original inspiration.

I think people should seriously consider using something like passphrase2pgp [0] in addition to a hardware key like this. That way you can have a brain key (hopefully generated with diceware or equivalent) to tie together day-to-day keys like this to a more permanent identity. I'm honestly surprised that strategy is not more widespread.

[0] https://github.com/skeeto/passphrase2pgp

Check out Chris Wellons' tool passphrase2pgp - it does exactly what you're describing by hashing an arbitrary input passphrase with Argon2.

So the easiest way to synchronize gpg keys I found is https://github.com/skeeto/passphrase2pgp - it generates a deterministic gpg key (also ssh keys, x509 certificates...) from a passphrase. Excellent tool

One way to circumvent this is to use a strong passphrase to deterministically generate the PGP/SSH key [1] to unlock other passwords. The SSH key could grant access to a remote server with backups and the PGP key could decrypt passwords using pass [2].

1. https://github.com/skeeto/passphrase2pgp

2. https://www.passwordstore.org/

I know there are tools that can generate GPG from arbitrary inputs, but what I'm really looking for is something with direct compatibility with BIP 39 or (BIP 44) phrases in particular.

What if https://github.com/skeeto/passphrase2pgp is not obviously the software to use, or doesn't exist at some later point?

My own tool, passphrase2pgp works this way. It generates both OpenPGP and SSH Ed25519 keys from a user-chosen passphrase, and it's designed to send the key straight into the ssh-agent on demand.

Derive my keypair entirely from a passphrase, with generous key stretching. I never need to worry about backing up my keys. I later extended this idea to OpenPGP and SSH, where I also exclusively use passphrase-derived keys: passphrase2pgp.

passphrase2pgp: for storing my PGP and SSH keys in my brain. Neither ever reside in permanent storage.

I've been using pass for several years now and I recommend it to my friends, but I usually get weird looks when I say I store my passwords in a git repo (it's not as bad as it sounds!). Here's why:

- I host my git repo on my desktop computer (through SSH), so it's not exposed anywhere except if you have SSH access to my computer. (A lot of people seem to think git = GitHub which is not true).

- The passwords are GPG encrypted so even if it were leaked that would be okay as long as my secret key remains secure.

As far as usability goes, I usually use the -c option to copy/paste my passwords. I used a browser extension for awhile, but I haven't gotten around to reinstalling since the copy/paste works fine for me. Syncing with my phone and Linux devices works perfectly (since it's just git).

The Windows client seems to be no longer maintained [1], so I would like better support here for my Surface. But this is still okay since I can SSH to my desktop computer from Windows and copy/paste the passwords from there.

[1] https://github.com/mbos/Pass4Win#readme