BIP Idea: Scrambling BIP39 recovery seeds

[dr.oso.ph...@aleeas.com]

Dear Developers

Thank you for dedicating your time on a thrilling project - Bitcoin.

Recently, this idea came into my mind. I tried to summarize and write it
down as clear as possible, following BIP3, which states:
"As a first sketch of the proposal is taking shape, the authors should
present it to the Bitcoin Development Mailing List. This gives the
authors a chance to collect initial feedback and address fundamental
concerns."
I refrained from forking the github bitcoin/bips tree just to upload one
properly formatted document. I am no programmer and unfamiliar to the
world of bitcoin developers, so forgive me if I do things which seem
strange to you.

The main question about this idea is: does a suitable function exists? I
thought of discrete exponentiation. But as a former math student, I
remember that this does not always work as expected beforehand...
All I know that a similar concept is used in Diffie-Hellman Key Exchange
and you're more into cryptography as I am. Therefore I thought that it's
best to ask this question to you. Maybe you have a better idea.

If no idea comes up, well... then it's a dead end.

Best
Dr. Oso Phila, a small bug

[Jameson Lopp]

Have you read BIP39 in detail?

It sounds like you're inventing an alternative to the passphrase protection described here: https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki#from-mnemonic-to-seed

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