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% 19569 5 g0uZ 1
pas_valide Squared 12% 14957 5 g0uZ 4
pas_valide Dot and next line 6% 6834 10 SQalp 1
pas_valide Steganomobile 10% 11593 10 Ryscrow 2
pas_valide Twitter Secret Messages 6% 6981 10 xblade 1
pas_valide Some noise 6% 6362 15 Hackira 2
pas_valide George and Alfred 8% 9526 15 g0uZ 1
pas_valide Audio stegano 4% 3888 25 stickmen 6
pas_valide Base Jumper 1% 389 25 pickle 1
pas_valide PDF Object 2% 1314 25 eilco 4
pas_valide We need to go deeper 4% 3891 25 whoaim 7
pas_valide Angecryption 1% 213 30 pickle 1
pas_valide Kitty spy 1% 266 30 LetMeR00t 0
pas_valide LSB - Uncle Scrooge 1% 784 30 koma 1
pas_valide Pixel Indicator Technique 1% 196 30 LetMeR00t 1
pas_valide Pixel Value Differencing 1% 114 30 LetMeR00t 1
pas_valide Crypt-art 3% 3159 35 m31z0nyx 2

Challenge Results Challenge Results

Pseudo Challenge Lang date
Wh1mC   Gunnm en 19 March 2019 at 03:56
nekredema   Twitter Secret Messages fr 19 March 2019 at 00:06
Erwann   George et Alfred fr 18 March 2019 at 23:41
Phantom06   Pas très carré fr 18 March 2019 at 23:40
Phantom06   Gunnm fr 18 March 2019 at 23:37
nekredema   George et Alfred fr 18 March 2019 at 23:30
Erwann   Twitter Secret Messages fr 18 March 2019 at 23:26
nekredema   Steganomobile fr 18 March 2019 at 23:25
freaky59   George et Alfred fr 18 March 2019 at 23:25
freaky59   Twitter Secret Messages fr 18 March 2019 at 23:12