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:
Jan. 22, 2013
Filed:
Nov. 05, 2009
Brian C. Grayson, Austin, TX (US);
Leick D. Robinson, Round Rock, TX (US);
Benjamin M. Menchaca, Pflugerville, TX (US);
Brian C. Grayson, Austin, TX (US);
Leick D. Robinson, Round Rock, TX (US);
Benjamin M. Menchaca, Pflugerville, TX (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
A logic block is presented that generates avalanche criterion hash values using minimal logic. The logic block includes a first exclusive-OR function, a second exclusive-OR function, and an OR function. The first exclusive-OR function receives two input bits from a data packet and generates a linear output value based upon exclusive disjunction between the two input bits. The OR function receives two different input bits from the data packet and generates a first nonlinear output value based upon logical disjunction between the two different input bits. The second exclusive-OR function receives the linear output value and the first nonlinear output value, and generates a second nonlinear output value based upon exclusive disjunction between the linear output value and the first nonlinear output value. In turn, the second nonlinear output value is utilized to generate a hash value for the data packet.