Add EIP-6051: Private Key Encapsulation

[weiji-cryptonatty]

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[eth-bot]

A critical exception has occurred:
Message: pr 6051 is already merged; quitting
(cc @alita-moore, @mryalamanchi)

[weiji-cryptonatty]

Hi @xinbenlv I had pushed some more commits to address all issues except the ERC vs Interface. Could you please review again? Thanks a lot.

[weiji-cryptonatty]

These are my main editorial review comments, many of them are due to the grammar issue. I totally understand grammar challenge myself because I speak English as second language. Please consider run via a grammar checker.

Another major issue is to keep it consistent for terminologies that you specifically defined. For example, when addressing "Recipient" or "Sender", please capitalize.

Hi @xinbenlv thank you again for the very careful and very detailed reviews. I can see why EIP editors are so overwhelmed. I really appreciate what you had done here.

I think I have fixed all issues. I also ran another round with grammarly.com and fixed almost all issues it suggests (with very few I did not agree with it). Please review again when you do find time.

[xinbenlv]

From a technical perspective, I personally still think, if the EIP is defining a way to encapsulate and unwrap private key via eth_ interface, that is considered an interface category, but we can address it later.

[xinbenlv]

I think this is good to merge as a draft now. Defer to @Pandapip1 @SamWilsn to follow up the merging.

[weiji-cryptonatty]

suggestions accepted

[Pandapip1]

LGTM for a draft