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:
Jun. 01, 2021
Filed:
Jan. 16, 2019
Proton World International N.v., Diegem, BE;
Joan Daemen, Malden, NL;
Michael Peeters, Tourinnes-la-Grosse, NL;
PROTON WORLD INTERNATIONAL N.V., Diegem, BE;
Abstract
The disclosure concerns an encryption function applied to a first word, a second word, a third word, and a fourth word including: multiplying the third word by the fourth word; adding the result of the multiplication; subtracting the result of the addition to the second word from the result of the addition to the first word; adding the result of the subtraction; combining with a constant the result of the addition of the third word to the result of the subtraction; and multiplying by two the result of said combination and circularly shifting the codes of the respective results of the addition of the fourth word to the result of the subtraction, of the addition of the second word to the result of the multiplication, and of the addition of the first word to the result of the multiplication.