Invention Grant
- Patent Title: Token-based system for excising data from databases
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Application No.: US15286422Application Date: 2016-10-05
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Publication No.: US11216808B2Publication Date: 2022-01-04
- Inventor: Avinash Malliah , Roisin F. Fritz , Jonathan K. Barnett , John Jong Suk Lee , Paul Mon-Wah Chan , Orin Del Vecchio
- Applicant: The Toronto-Dominion Bank
- Applicant Address: CA Toronto
- Assignee: The Toronto-Dominion Bank
- Current Assignee: The Toronto-Dominion Bank
- Current Assignee Address: CA Toronto
- Agency: Graham Patent Law
- Main IPC: G06Q20/38
- IPC: G06Q20/38 ; G06Q20/10 ; H04L9/14 ; H04L9/30 ; H04L9/32

Abstract:
A message processing server includes a message processor, a network interface, and a memory storing a token database of multi-layer tokens. Each token in the database includes a plurality of encrypted data layers. The message processor receives, via the network interface, at least one authorization message that identifies one of the tokens, derives a first decrypted data layer from the first encrypted data layer of the token, and extracts from the first decrypted data layer a second pointer to a secondary database that stores a predetermined data value. The message processor excises the predetermined data value from the secondary database.
Public/Granted literature
- US20170124557A1 TOKEN-BASED SYSTEM FOR EXCISING DATA FROM DATABASES Public/Granted day:2017-05-04
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