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% 25724 5 g0uZ 3
pas_valide Squared 12% 19589 5 g0uZ 6
pas_valide Dot and next line 6% 9517 10 SQalp 1
pas_valide Steganomobile 10% 15132 10 Ryscrow 2
pas_valide Twitter Secret Messages 6% 9625 10 xblade 2
pas_valide Some noise 5% 7975 15 Hackira 3
pas_valide George and Alfred 8% 11891 15 g0uZ 1
pas_valide Yellow dots 1% 1125 15 LetMeR00t 3
pas_valide Audio stegano 4% 5009 20 stickmen 6
pas_valide We need to go deeper 3% 4717 20 whoaim 7
pas_valide Base Jumper 1% 622 25 pickle 1
pas_valide Hide and seek 1% 100 25 swap89 0
pas_valide PDF Object 2% 1786 25 eilco 6
pas_valide Angecryption 1% 307 30 pickle 1
pas_valide Kitty spy 1% 461 30 LetMeR00t 1
pas_valide LSB - Uncle Scrooge 1% 981 30 koma 1
pas_valide Pixel Indicator Technique 1% 304 30 LetMeR00t 1
pas_valide Pixel Value Differencing 1% 220 30 LetMeR00t 1
pas_valide Crypt-art 3% 3857 35 m31z0nyx 2

Challenge Results Challenge Results

Pseudo Challenge Lang date
Alpha9   Point à la ligne 20 January 2020 at 09:29
regorm   Twitter Secret Messages 20 January 2020 at 09:00
Ai_Inoue   Audio stegano 20 January 2020 at 08:51
omw   Steganomobile 20 January 2020 at 08:47
Ai_Inoue   Twitter Secret Messages 20 January 2020 at 08:31
Ai_Inoue   Steganomobile 20 January 2020 at 08:30
Ai_Inoue   Dot and next line 20 January 2020 at 08:27
Ai_Inoue   Squared 20 January 2020 at 08:18
Ai_Inoue   Gunnm 20 January 2020 at 08:17
Louise Fox   Dot and next line 20 January 2020 at 06:03