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

Claim 23:
24. 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;
decrypt the seed;
based on the seed, derive a transaction key (Tk);
cause the database encryption key management system to determine that a second entity computing system has been whitelisted to use the transaction scheme; and
cause the database encryption key management system to transmit the seed to the second entity computing system for derivation of the Tk by the second entity computing system based on the seed.