David F Hacker

US Patent:

20190340368, Nov 7, 2019

Filed:

Jul 31, 2018

Appl. No.:

16/051390

Inventors:

- San Francisco CA, US
Michael Goldberg BOILEN - Kirkland WA, US
David HACKER - Moraga CA, US

International Classification:

G06F 21/60
G06F 21/62
H04L 29/06
H04L 9/08
G06F 11/30
G06F 11/34
G06F 9/54

Abstract:

A first raw value of a first field from the first set of fields is encrypted to generate a first token using a symmetric key encryption mechanism based on a first cryptographic key associated with a first time window after which the first cryptographic key is no longer valid for tokenization of raw fields of raw log records. After the first time window has elapsed, a second raw value of a second field from the second set of fields is encrypted to generate a second token using the symmetric key encryption mechanism based on a second cryptographic key that is different from the first cryptographic key. The second cryptographic key is associated with a third time window that occurs after the first time window and after which the second cryptographic key is no longer valid for tokenization of raw fields of raw log records.