Hi, I tried to implement the mechanism described in the FEP and decided to use HPKE ([RFC-9180](https://www.rfc-editor.org/rfc/rfc9180.html )). What do you think of it?
HPKE seems to address the issue you pointed out back then: https://www.rfc-editor.org/rfc/rfc9180.html#name-forward-secrecy.
At least if used properly. The library I am using hard-codes "info" and "aad" strings: https://github.com/rustonbsd/ed25519-dalek-hpke/blob/27b010a9ae25ba4ce051510eadfd103a179dd715/src/lib.rs#L98-L104
Anyway, here's an updated FEP: https://codeberg.org/silverpill/feps/src/branch/main/0806/fep-0806.md
Râu Cao ⚡ (npub1z6g…3yt9) lain (npub134r…xq57) Sozialwelten (npub1va6…rdnr) Magical Cat (npub19n4…7fx8)
silverpill
npub19y…5wysk
2026-07-17 16:29:52 UTC
in reply to nevent1q…suut
Author Public Key
npub19yg7mshq9vdtvvcm48svw03cmzewue4jug62cltnleh3y78khz5sm5wyskSeen on
wss://relay.momostr.pinkPublished at
2026-07-17 16:29:52 UTCEvent JSON
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"content": "Hi, I tried to implement the mechanism described in the FEP and decided to use HPKE ([RFC-9180](https://www.rfc-editor.org/rfc/rfc9180.html )). What do you think of it?\n\nHPKE seems to address the issue you pointed out back then: https://www.rfc-editor.org/rfc/rfc9180.html#name-forward-secrecy.\n\nAt least if used properly. The library I am using hard-codes \"info\" and \"aad\" strings: https://github.com/rustonbsd/ed25519-dalek-hpke/blob/27b010a9ae25ba4ce051510eadfd103a179dd715/src/lib.rs#L98-L104\n\nAnyway, here's an updated FEP: https://codeberg.org/silverpill/feps/src/branch/main/0806/fep-0806.md\n\nnostr:npub1z6gtynkn398jcf42xclzjnnw2jm7qglga0m5c9kwpg39ep70cs6s363yt9 nostr:npub134rq66sna5l46fgjqlknydpka047zf4y8v2rufwaq57dgu0qmazsgxxq57 nostr:npub1va6q9dmyw9rd34gncfuc3qvwnqv6e9jzltj2u0ctwdjxr3d4c9eqw5rdnr nostr:npub19n4htjp8zkpg2hk8n4tv87gd5qsw3r0flxxadem2r3lyxm2a5q4qk77fx8",
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