Replay key of a UCAN: the CID of its signature payload, the exact bytes the
signature covers.
Unlike cid, it does not depend on the signature bytes, so a second
valid signature over the same payload (for example a malleated ECDSA
signature) gets the same key.
Replay key of a UCAN: the CID of its signature payload, the exact bytes the signature covers.
Unlike cid, it does not depend on the signature bytes, so a second valid signature over the same payload (for example a malleated ECDSA signature) gets the same key.