The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 30, 2025
Filed:
Apr. 07, 2023
Micro Focus Llc, Santa Clara, CA (US);
Richard Todd Minner, Santa Clara, CA (US);
Thomas J. Wu, Santa Clara, CA (US);
Micro Focus LLC, Santa Clara, CA (US);
Abstract
A plaintext is received. For example, a plaintext may be a text record that is to be encrypted and then stored in a database. A determination is made to see if a size of the plaintext is above a threshold. The threshold is based on an efficiency of a Format Preserving Encryption (FPE) algorithm. In response to the size of the plaintext being above the threshold: the plaintext is divided into a plurality of blocks based on a block size; each of the blocks are individually encrypted using the FPE algorithm; and each of the blocks are stored as a single FPE cyphertext. This makes the FPE encryption process much more effacement than has previously been achieved. For example, the FPE process may be 30% more efficient depending on the size of the plain text.