IPNS Publisher Key Seed Phrases

[lidel]

This is a placeholder for writing down an IPIP with a spec for the scope below

Scope

New document in https://specs.ipfs.tech/ipns/ that describes:

• producing a seed phrase at the time of IPNS key generation for backup purposes
• recreating IPNS publishing key from a backup seed phrase

MVP could be specific to ED25519 keys, as long it creates a convention and space for future IPIPs with other key types.

Use cases

• import/export keys including air-gapped contexts and/or where PEM is not supported
• improving UX around website publishing (e.g. blogging platform asking user to write down seed phrases as offline backup, or asking to provide existing one)

Prior art

• ed25519 backup/restore https://github.com/charmbracelet/melt
• crypto wallets: BIP-32, BIP-39