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20 lines
852 B
Markdown
20 lines
852 B
Markdown
NIP-704
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======
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Key derivation for Encrypted Direct Messages
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-----------------------------------
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`draft` `optional` `author:motorina0`
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This NIP defines a way for two clients to derive `one-use-only` keys for sending and recieving `kind:4` events.
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## Motivation
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The content of `Direct Messages` (NIP-04)[https://github.com/nostr-protocol/nips/blob/master/04.md] is encrypted, but everyone can see who is chatting with whom. This is far from ideal from a privacy perspective.
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## Suggestion
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For the maximum of privacy the two participants of a `Direct Message` exchange SHOULD use a different public key for each `kind:4` event.
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This means that each participant has to:
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- build a `direct message top key` from which it will derive keys to send and keys to recieve (listen for) `kind:4` events
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- share this `direct message top key` with its DM peer
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