Patent ID: 11888983
Assignee: WELLS FARGO BANK, N.A.
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 12:
13. A method for recovering an object associated with a secure session established by a security protocol server, the method comprising:
generating, by a recovery server, a recovery key based on a first initial key and a recovery key sequence number, the recovery key determined by performing operations comprising:
executing a first one-way function one or more times with a previous internal key as input to determine an internal key, wherein the previous internal key is determined by executing the first one-way function one or more times with the first initial key as input, the previous internal key comprising an output of the first one-way function for a previous secure session; and
executing a second one-way function with the internal key as input to determine the recovery key; and

decrypting, by the recovery server, an encrypted object using the recovery key to generate the object associated with the secure session.