<r​ecanman:kernal.eu> First time

<r​ecanman:kernal.eu> I restarted monerod and the issue went away

<r​ecanman:kernal.eu> Just wanted to post it in case it was useful

how do I derivate the public address and the view key from the spend key?

<m​cneb10:envs.net> the public address is a combination of the public view and spend keys

<m​cneb10:envs.net> getmonero.org/resources/moneropedia/address.html

Private view key is normally generated from the private spend key (although 3rd-party wallets can do it differently)

oh heck, so I need to arrive on the address first derivate the public spend key, secret view key -> public view key to generate a wallet. then I can also directly generate the wallet by myself :/

<m​cneb10:envs.net> iirc the private spend key is randomly generated, and the private view key is made by keccak 256 hashing the private spend key 10000 times

<m​cneb10:envs.net> then you can derive the public keys from the private keys

I want to have the outcome compatible with monero-gui/cli/rpc and feather, my challenge is now to get from the secret spend key I created from polyseed to the complete wallet or to the correct seed phrase, I assumed wrongly that the key provided to monero.seed.Seed (in monero-python) is equal to the secret spend key, but isn't :S

view secret key is just a keccak(spend secret key), if you create it with Monero CLI/GUI

so it's just a keccak hash

and sc_reduce32

sc_reduce is from ed25519?

yes, it's from src/crypto/crypto-ops.c

hehe, there I have also still an issu open, because monero.seed.Seed a randomly generated seed, then restored wallet with monero-rpc leads to another seed phrase but the same wallet....

so it's polyseed -> secret_spend_key -> ed25519.sc_reduce(keccak(secret_spend_key, rounds)) -> secret_view_key.

then I need to get from both the public keys, the private keys are ed25519?

and rounds = 1 or 10000?

1 round of keccak

Private keys are ed25519

will look first in src/crypto/crypto-ops.c before I make more unnecesarry questions... sorry, I'm a bit accelerated

thank you very much sech1 :)

<r​ecanman:kernal.eu> vthor here's the original python reference implementation: ed25519.cr.yp.to/python/ed25519.py

<r​ecanman:kernal.eu> Another good resource: getmonero.dev/cryptography/asymmetric/edwards25519.html

recanmen thank you, but it's shipped whith monero-python

and I could create now everything by hand, but now it seems feather does something else then claimed :/ will see there, something doesn't add up.