(19)
(11) EP 3 001 402 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
16.05.2018 Bulletin 2018/20

(45) Mention of the grant of the patent:
04.04.2018 Bulletin 2018/14

(21) Application number: 14306482.2

(22) Date of filing: 25.09.2014
(51) International Patent Classification (IPC): 
G09C 5/00(2006.01)

(54)

Undetectable encryption based on N-gram rotations

Nicht nachweisbare Verschlüsselung auf Basis von N-Gramm-Rotationen

Cryptage indétectable sur la base des rotations N-gram

(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(43) Date of publication of application:
30.03.2016 Bulletin 2016/13

(73) Proprietor: Alcatel Lucent
91620 Nozay (FR)

(72) Inventors:
  • Jacquet, Philippe
    91620 Nozay (FR)
  • Milioris, Dimitrios
    91620 Nozay (FR)
  • Burnside, Gérard
    91620 Nozay (FR)

(74) Representative: Berthier, Karine 
Alcatel-Lucent International Patent Business Site Nokia Paris Saclay Route de Villejust
91620 Nozay
91620 Nozay (FR)


(56) References cited: : 
US-B1- 6 823 068
   
  • CHING-YUN CHANG ET AL: "Practical linguistic steganography using contextual synonym substitution and a novel vertex coding method", COMPUTATIONAL LINGUISTICS, M I T PRESS, US, vol. 40, no. 2, 1 June 2014 (2014-06-01), pages 403-448, XP058056156, ISSN: 0891-2017, DOI: 10.1162/COLI_A_00176
   
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).