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% 18924 5 g0uZ 1
pas_valide Squared 12% 14443 5 g0uZ 4
pas_valide Dot and next line 6% 6583 10 SQalp 1
pas_valide Steganomobile 10% 11262 10 Ryscrow 2
pas_valide Twitter Secret Messages 6% 6680 10 xblade 1
pas_valide Some noise 6% 6245 15 Hackira 2
pas_valide George and Alfred 8% 9289 15 g0uZ 1
pas_valide Audio stegano 4% 3758 25 stickmen 6
pas_valide Base Jumper 1% 378 25 pickle 1
pas_valide PDF Object 2% 1252 25 eilco 4
pas_valide We need to go deeper 4% 3809 25 whoaim 7
pas_valide Angecryption 1% 209 30 pickle 1
pas_valide Kitty spy 1% 255 30 LetMeR00t 0
pas_valide LSB - Uncle Scrooge 1% 777 30 koma 1
pas_valide Pixel Indicator Technique 1% 187 30 LetMeR00t 1
pas_valide Pixel Value Differencing 1% 106 30 LetMeR00t 1
pas_valide Crypt-art 3% 3107 35 m31z0nyx 2

Challenge Results Challenge Results

Pseudo Challenge Lang date
chum1ng0   Some noise en 22 February 2019 at 22:25
Theoreme   Gunnm fr 22 February 2019 at 22:25
Bardatux   Steganomobile fr 22 February 2019 at 21:27
MEHDI SADIR   Twitter Secret Messages fr 22 February 2019 at 21:10
mainsindread   We need to go deeper fr 22 February 2019 at 21:05
mainsindread   Objet PDF fr 22 February 2019 at 21:04
mainsindread   Base Jumper fr 22 February 2019 at 21:04
mainsindread   Audio stégano fr 22 February 2019 at 21:04
Pierre   Twitter Secret Messages en 22 February 2019 at 20:01
Pierre   Steganomobile en 22 February 2019 at 19:56