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. 06, 2020
Filed:
Apr. 03, 2020
Fmr Llc, Boston, MA (US);
Peter McCormack, Dublin, IE;
Frank Friel, Co. Galway, IE;
Simon Brown, Co. Wicklow, IE;
Thomas McGuire, Co. Galway, IE;
FMR LLC, Boston, MA (US);
Abstract
Methods and apparatuses are described for generating a cryptographic authentication key. A computing device receives a request to generate a cryptographic key. The device generates a defined sequence of security questions, each question associated with a difficulty value. The device generates the key using the defined sequence of questions, comprising: a) presenting a first question and receiving an answer to the first question, b) generating a hash string corresponding to the received answer, c) determining a next question based upon the hash string, d) presenting the next question and receiving an answer to the next question, e) concatenating the answer to the next question with the hash string, f) applying a hash function to the hash string with the concatenated answer to update the hash string, g) repeating steps c-f until the difficulty values of the questions reaches a threshold, and h) generating the key from the updated hash string.