Steganography

The art of hiding information in a document.

 20 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution Date
pas_valide Gunnm 16% 37484 5 g0uZ 3 7 October 2006
pas_valide Squared 13% 28481 5 g0uZ 10 7 October 2006
pas_valide Some noise 6% 11844 15 Hackira 3 7 October 2006
pas_valide Steganomobile 10% 22142 10 Ryscrow 2 29 April 2011
pas_valide Audio stegano 4% 7414 20 stickmen 7 2 October 2011
pas_valide Crypt-art 3% 5559 35 m31z0nyx 2 11 December 2011
pas_valide LSB - Uncle Scrooge 1% 1313 30 koma 1 21 March 2012
pas_valide Dot and next line 7% 15312 10 SQalp 1 16 June 2013
pas_valide George and Alfred 7% 16347 15 g0uZ 1 20 December 2014
pas_valide We need to go deeper 3% 6834 20 whoaim 7 12 August 2015
pas_valide Twitter Secret Messages 7% 15400 10 xblade 3 21 December 2016
pas_valide PDF Object 2% 2586 25 eilco 7 23 July 2017
pas_valide Pixel Indicator Technique 1% 605 30 LetMeR00t 1 7 August 2017
pas_valide Angecryption 1% 463 30 pickle 1 17 September 2017
pas_valide Pixel Value Differencing 1% 505 30 LetMeR00t 1 7 November 2017
pas_valide Base Jumper 1% 1026 25 pickle 3 3 March 2018
pas_valide Kitty spy 1% 756 30 LetMeR00t 2 9 July 2018
pas_valide Hide and seek 1% 290 25 swap89 1 22 September 2019
pas_valide Yellow dots 2% 3450 15 LetMeR00t 5 29 September 2019
pas_valide Poem from Space 1% 1052 15 Cryptanalyse 3 15 July 2020

Challenge Results Challenge Results

Pseudo Challenge Lang Date
tc_352   Yellow dots 17 October 2021 at 05:46
Disfigure   George et Alfred 17 October 2021 at 03:50
Disfigure   Twitter Secret Messages 17 October 2021 at 03:35
AlDuelz   Pas très carré 17 October 2021 at 03:34
Disfigure   Steganomobile 17 October 2021 at 03:27
Disfigure   Pas très carré 17 October 2021 at 03:10
Disfigure   Gunnm 17 October 2021 at 03:08
gatsu   We need to go deeper 16 October 2021 at 23:58
zazweld   Steganomobile 16 October 2021 at 23:57
zazweld   Pas très carré 16 October 2021 at 23:51