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.

Date of Patent:
Jun. 02, 2020

Filed:

Mar. 23, 2016
Applicants:

Universite DE Reims Champagne-ardenne, Reims, FR;

Universite DE Picardie Jules Verne, Amiens, FR;

Inventors:

Gilles Dequen, Amiens, FR;

Florian Legendre, Fismes, FR;

Michaël Krajecki, Reims, FR;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); H04L 9/08 (2006.01); H04L 9/06 (2006.01); H04L 29/06 (2006.01); G06F 21/31 (2013.01); H04L 9/14 (2006.01);
U.S. Cl.
CPC ...
H04L 9/3239 (2013.01); G06F 21/31 (2013.01); H04L 9/0637 (2013.01); H04L 9/0643 (2013.01); H04L 9/0861 (2013.01); H04L 9/0863 (2013.01); H04L 9/14 (2013.01); H04L 9/3226 (2013.01); H04L 9/3242 (2013.01); H04L 63/083 (2013.01); G06F 2221/2131 (2013.01); H04L 63/0823 (2013.01);
Abstract

Method for retrieving data entered during a server connection, the server having access to a memory including a generated hashed word of a first input data, which corresponds to the data modified by a processing function, the capacity of the hashed word being lower than a predefined capacity, a generated security key of a second input data, which corresponds to the data modified by a processing function, the capacity of the security key being equal to the difference between the predefined capacity and the hashed word capacity, the security key not being stored, method wherein: —after a request to retrieve the data, the hashed word and the security key are concatenated in order to reach the predefined capacity, and —an inverse hash function, using an algebraic solving of the hash function, is applied to the concatenation of the hashed word and security key, to retrieve the data.


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