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.

 19 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution
pas_valide Gunnm 16% 24856 5 g0uZ 2
pas_valide Squared 12% 18931 5 g0uZ 6
pas_valide Dot and next line 6% 9070 10 SQalp 1
pas_valide Steganomobile 9% 14590 10 Ryscrow 2
pas_valide Twitter Secret Messages 6% 9234 10 xblade 2
pas_valide Some noise 5% 7742 15 Hackira 3
pas_valide George and Alfred 8% 11528 15 g0uZ 1
pas_valide Yellow dots 1% 881 15 LetMeR00t 2
pas_valide Audio stegano 3% 4833 20 stickmen 6
pas_valide We need to go deeper 3% 4562 20 whoaim 7
pas_valide Base Jumper 1% 594 25 pickle 1
pas_valide Hide and seek 1% 77 25 swap89 0
pas_valide PDF Object 2% 1734 25 eilco 5
pas_valide Angecryption 1% 295 30 pickle 1
pas_valide Kitty spy 1% 437 30 LetMeR00t 1
pas_valide LSB - Uncle Scrooge 1% 926 30 koma 1
pas_valide Pixel Indicator Technique 1% 290 30 LetMeR00t 1
pas_valide Pixel Value Differencing 1% 205 30 LetMeR00t 1
pas_valide Crypt-art 3% 3735 35 m31z0nyx 2

Challenge Results Challenge Results

Pseudo Challenge Lang date
ROBY5791   Gunnm 11 December 2019 at 02:01
diablorai   George et Alfred 11 December 2019 at 01:48
DrGruff   Steganomobile 11 December 2019 at 01:23
pobo   Audio stegano 11 December 2019 at 00:33
tuemdy   Pas très carré 10 December 2019 at 23:25
tuemdy   Gunnm 10 December 2019 at 23:17
Nyu   Twitter Secret Messages 10 December 2019 at 23:05
Nyu   Steganomobile 10 December 2019 at 23:02
joevin-slq   Twitter Secret Messages 10 December 2019 at 22:58
joevin-slq   Steganomobile 10 December 2019 at 22:51