Subnostr

This key material, called a KeyPackage, advertises the functional abilities of the client such as supported protocol versions, supported extensions, and the following cryptographic information:¶

A credential from the Authentication Service attesting to the binding between the identity and the client's signature key.¶

The client's asymmetric encryption public key.¶

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Discussion

hodlbod 2y ago

nostr:note1ah66kqntuezan5jcpq59cu4sd9lc9rpqx74x8tvp0m8yfxllk3ysfjxuc9

I think the purpose of this is so that it's impossible to know if someone has been invited to a group. In NIP-87, invitations are addressed to your real public key, but the sender is obscured. This seems like an ok tradeoff.