Under a NIP-46 remote signer, every decrypt is a PUBLISHED relay RPC. The list
services (blocks/subscriptions/hashtags) probed all decryptor families
concurrently via Promise.any — so each list event published nip04 AND nip44 RPCs
at once. On login that flooded the relay ("rate-limited: you are noting too
much"), and the racing/queued RPCs blew past the 30s decrypt budget → the
"Decryption timed out" failures.
A NIP-04 payload carries the "?iv=" marker and can ONLY be decrypted by nip04;
otherwise it's nip44. The other family can never succeed on a given ciphertext,
so racing it is pure waste (and a wasted published RPC under NIP-46). Restrict
the decrypt probe to the family matching the ciphertext format (fall back to all
if the format is somehow unknown). Halves cold-load RPCs and stops the racing
publishes that tripped the rate limit; benefits all signer types.
Spec correction: the hashtag "retries decryptors when hinted scheme fails" test
stubbed an impossible scenario (the same ciphertext decrypting under nip04 after
nip44 failed). Rewritten to assert the real contract — the ciphertext format
routes decryption and overrides a misleading `encrypted` tag, invoking only the
matching decryptor.
test_integrity_note:
change_type: ["spec_correction"]
scenarios:
- id: SCN-decrypt-format-routing
given: "a nip04-format ciphertext (?iv=) tagged misleadingly as nip44"
when: "a list service decrypts it"
then: "only the nip04 decryptor is invoked; nip44 is never attempted"
anti_cheat_rationale:
prevents: ["over-mocking internal logic", "asserting impossible cross-family decryption"]
relaxation:
did_relax_any_assertion: false
Co-Authored-By: Claude Opus 4.8 <[email protected]>
