Build a ConfidentialMPTConvert transaction that moves a holder's public MPT
balance into their confidential balance. The amount is encrypted under the
holder, issuer, and (when registered) auditor keys with a shared blinding
factor. On the holder's first Convert the holder key is registered and a
Schnorr proof attests ownership of it; this is auto-detected from ledger state
(see registerKey).
Build a ConfidentialMPTConvert transaction that moves a holder's public MPT balance into their confidential balance. The amount is encrypted under the holder, issuer, and (when registered) auditor keys with a shared blinding factor. On the holder's first Convert the holder key is registered and a Schnorr proof attests ownership of it; this is auto-detected from ledger state (see
registerKey).