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:
Oct. 16, 2018
Filed:
Jun. 28, 2012
Thomas Cordella, Tampa, FL (US);
John Profumo, St. Petersburg, FL (US);
Thomas Cordella, Tampa, FL (US);
John Profumo, St. Petersburg, FL (US);
Honeywell International Inc., Morris Plains, NJ (US);
Abstract
Contents of a memory may be authenticated using redundant encryption. In some examples, data to be stored by a memory is encrypted with two unique encryption keys—a first encryption key is used generate a cipher text and a second encryption key (different than the first encryption key) is used to generate an authentication tag. The cipher text and authentication tag are stored by the memory. At a later time, the cipher text and authentication tag may be retrieved from the memory and decrypted using the respective encryption keys. After decrypting the cipher text and the authentication tag, the data retrieved from the memory may be authenticated by comparing the plaintext generated by decrypting the cipher text and with the plaintext generated by decrypting the authentication tag. A match between the plaintext indicates the data was not corrupted or modified during storage in the memory.