Patent ID: 11860993
Assignee: STMICROELECTRONICS INTERNATIONAL N.V.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A method of operating an electronic device, comprising:
generating scramble control codes by:
generating a random number;
shifting the random number to produce a shifted random number;
generating control signals by selecting different subsets of the shifted random number; and
generating scramble control words by selecting different subsets of the random number based upon the control signals;

receiving a password comprised of sub-words;
scrambling the sub-words of the password according to the scramble control codes;
retrieving a verification word comprised of sub-words, and scrambling the sub-words of the verification word according to the scramble control codes; and
comparing the scrambled sub-words of the password to the scrambled sub-words of the verification word to thereby authenticate an external device that provided the password.