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100 sats \ 1 reply \ @tomlaies 16 Dec 2023 \ parent \ on: [important] foreign asset control compliance meta
But suppose you publish a Nostr pubkey and I encrypt a DM with it (no signatures). How is this unsecure?
I'm not familiar with what cryptography nostr uses here.
But in general it's not a good idea to encrypt data with just any pubkey. It could (doesn't have to) be insecure in a sense of your DM might be decipherable for 3rd parties. It can't be insecure in a sense of threatening the secret key of the recipient, of course.
I'm not familiar with what cryptography Nostr uses here. But like @ekzyis mentioned: there are famous examples with RSA where weaknesses emerge when using the same key for encryptions and signatures.
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0 sats \ 0 replies \ @ek 16 Dec 2023 freebie
I'm not familiar with what cryptography Nostr uses here
We're currently trying to move away from NIP04 which uses symmetric encryption with AES-256-CBC (absolute trash compared to industry standard) to NIP44. NIP44 just got audited.
But like @ekzyis mentioned: there are famous examples with RSA where weaknesses emerge when using the same key for encryptions and signatures.
Thanks :)