The key derivation: one wallet signature over this message (followed by a public seed for the
seed-scoped keys), expanded with HKDF-SHA512 into the ElGamal secret key and the AES key. It is
the derivation every standard client uses. The version is part of the message, so a different
derivation would sign a different message and give different keys; Arcantis refuses to derive
keys if the cryptography library it runs on signs anything else.
The key derivation: one wallet signature over this message (followed by a public seed for the seed-scoped keys), expanded with HKDF-SHA512 into the ElGamal secret key and the AES key. It is the derivation every standard client uses. The version is part of the message, so a different derivation would sign a different message and give different keys; Arcantis refuses to derive keys if the cryptography library it runs on signs anything else.