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% 15055 5 g0uZ 1
pas_valide Squared 13% 11515 5 g0uZ 4
pas_valide Dot and next line 6% 5040 10 SQalp 1
pas_valide Steganomobile 10% 9113 10 Ryscrow 2
pas_valide Twitter Secret Messages 6% 4791 10 xblade 1
pas_valide Some noise 6% 5416 15 Hackira 2
pas_valide George and Alfred 9% 7867 15 g0uZ 1
pas_valide Audio stegano 4% 2988 25 stickmen 6
pas_valide Base Jumper 1% 229 25 pickle 0
pas_valide PDF Object 1% 940 25 eilco 4
pas_valide We need to go deeper 4% 3269 25 whoaim 6
pas_valide Angecryption 1% 168 30 pickle 1
pas_valide Kitty spy 1% 142 30 LetMeR00t 0
pas_valide LSB - Uncle Scrooge 1% 723 30 koma 1
pas_valide Pixel Indicator Technique 1% 145 30 LetMeR00t 1
pas_valide Pixel Value Differencing 1% 75 30 LetMeR00t 1
pas_valide Crypt-art 3% 2724 35 m31z0nyx 2

Challenge Results Challenge Results

Pseudo Challenge Lang date
ouioui   Twitter Secret Messages fr 19 September 2018 at 15:49
stan   Gunnm fr 19 September 2018 at 15:47
Raidez   Pas très carré fr 19 September 2018 at 15:45
ObscureAngel   Pas très carré fr 19 September 2018 at 15:45
GuillaumeB   Pas très carré fr 19 September 2018 at 15:45
Tommy Guy   Gunnm fr 19 September 2018 at 15:38
ObscureAngel   Gunnm fr 19 September 2018 at 15:37
am00ne59   Gunnm fr 19 September 2018 at 15:26
waspy   Gunnm en 19 September 2018 at 15:23
Zoroaster_D   We need to go deeper fr 19 September 2018 at 15:05