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 Hide and seek 1% 290 25 swap89 1 22 September 2019
pas_valide Dot and next line 7% 15336 10 SQalp 1 16 June 2013
pas_valide Pixel Value Differencing 1% 507 30 LetMeR00t 1 7 November 2017
pas_valide Pixel Indicator Technique 1% 609 30 LetMeR00t 1 7 August 2017
pas_valide George and Alfred 7% 16363 15 g0uZ 1 20 December 2014
pas_valide LSB - Uncle Scrooge 1% 1315 30 koma 1 21 March 2012
pas_valide Angecryption 1% 464 30 pickle 1 17 September 2017
pas_valide Crypt-art 3% 5564 35 m31z0nyx 2 11 December 2011
pas_valide Steganomobile 10% 22176 10 Ryscrow 2 29 April 2011
pas_valide Kitty spy 1% 757 30 LetMeR00t 2 9 July 2018
pas_valide Gunnm 16% 37533 5 g0uZ 3 7 October 2006
pas_valide Base Jumper 1% 1027 25 pickle 3 3 March 2018
pas_valide Poem from Space 1% 1060 15 Cryptanalyse 3 15 July 2020
pas_valide Some noise 6% 11866 15 Hackira 3 7 October 2006
pas_valide Twitter Secret Messages 7% 15431 10 xblade 3 21 December 2016
pas_valide Yellow dots 2% 3458 15 LetMeR00t 5 29 September 2019
pas_valide PDF Object 2% 2590 25 eilco 7 23 July 2017
pas_valide Audio stegano 4% 7427 20 stickmen 7 2 October 2011
pas_valide We need to go deeper 3% 6844 20 whoaim 7 12 August 2015
pas_valide Squared 13% 28517 5 g0uZ 10 7 October 2006

Challenge Results Challenge Results

Pseudo Challenge Lang Date
Granules   Twitter Secret Messages 18 October 2021 at 23:28
Gwendal   Pas très carré 18 October 2021 at 23:01
Sandra Fernandes   Twitter Secret Messages 18 October 2021 at 22:58
Gwendal   Gunnm 18 October 2021 at 22:57
Granules   George et Alfred 18 October 2021 at 22:51
Granules   Gunnm 18 October 2021 at 22:49
Granules   Pas très carré 18 October 2021 at 22:48
natow   Twitter Secret Messages 18 October 2021 at 22:40
natow   Steganomobile 18 October 2021 at 22:23
Astr0s   Pas très carré 18 October 2021 at 22:22