Patent ID: 11936776
Assignee: WELLS FARGO BANK, N.A.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. A first entity computing system comprising at least one processor and a memory storing computer-executable instructions thereon, the computer-executable instructions, when executed by the at least one processor, causing the first entity computing system to:
transmit a hash-based message authentication code (HMAC) key cryptogram and a transaction scheme to a database encryption key management system;
receive a seed generated by the database encryption key management system based on the HMAC key cryptogram and the transaction scheme, wherein the seed is encrypted by the database encryption key management system via an entity public key associated with the first entity computing system;
decrypt the seed via an entity private key associated with the entity public key; and
based on the seed, derive a transaction key (Tk).