Steganography

Whereas cryptography concern the art of secret, steganography is the art of hidding: the object of steganography is to hide the fact that there is an information in a document.

Challenges associated with this section 17 Challenges

Results Challenge's Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution
pas_valide Gunnm 16% 22305 5 g0uZ 1
pas_valide Squared 12% 17009 5 g0uZ 5
pas_valide Dot and next line 6% 7884 10 SQalp 1
pas_valide Steganomobile 10% 13129 10 Ryscrow 2
pas_valide Twitter Secret Messages 6% 8234 10 xblade 1
pas_valide Some noise 5% 7063 15 Hackira 3
pas_valide George and Alfred 8% 10548 15 g0uZ 1
pas_valide Audio stegano 4% 4401 25 stickmen 6
pas_valide Base Jumper 1% 523 25 pickle 1
pas_valide PDF Object 2% 1592 25 eilco 4
pas_valide We need to go deeper 3% 4205 25 whoaim 7
pas_valide Angecryption 1% 275 30 pickle 1
pas_valide Kitty spy 1% 378 30 LetMeR00t 1
pas_valide LSB - Uncle Scrooge 1% 871 30 koma 1
pas_valide Pixel Indicator Technique 1% 249 30 LetMeR00t 1
pas_valide Pixel Value Differencing 1% 164 30 LetMeR00t 1
pas_valide Crypt-art 3% 3430 35 m31z0nyx 2

Challenge Results Challenge Results

Pseudo Challenge Lang date
Japo   Squared en 25 August 2019 at 14:17
Bookie   Crypt-art fr 25 August 2019 at 13:20
Bookie   We need to go deeper fr 25 August 2019 at 12:42
Nothing   Pixel Value Differencing en 25 August 2019 at 07:41
zach22   Point à la ligne fr 25 August 2019 at 05:26
!ntrus!on   Gunnm fr 25 August 2019 at 04:50
!ntrus!on   Steganomobile fr 25 August 2019 at 04:47
Neoxidth   Audio stégano fr 25 August 2019 at 01:41
G48r1eL   Objet PDF fr 24 August 2019 at 23:53
14DePique   George et Alfred fr 24 August 2019 at 23:33