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% 27599 5 g0uZ 3
pas_valide Squared 12% 21043 5 g0uZ 6
pas_valide Dot and next line 6% 10507 10 SQalp 1
pas_valide Steganomobile 10% 16292 10 Ryscrow 2
pas_valide Twitter Secret Messages 6% 10532 10 xblade 2
pas_valide Some noise 5% 8518 15 Hackira 3
pas_valide George and Alfred 8% 12684 15 g0uZ 1
pas_valide Yellow dots 1% 1587 15 LetMeR00t 3
pas_valide Audio stegano 4% 5371 20 stickmen 6
pas_valide We need to go deeper 3% 5071 20 whoaim 7
pas_valide Base Jumper 1% 677 25 pickle 2
pas_valide Hide and seek 1% 129 25 swap89 0
pas_valide PDF Object 2% 1903 25 eilco 6
pas_valide Angecryption 1% 324 30 pickle 1
pas_valide Kitty spy 1% 507 30 LetMeR00t 1
pas_valide LSB - Uncle Scrooge 1% 1037 30 koma 1
pas_valide Pixel Indicator Technique 1% 334 30 LetMeR00t 1
pas_valide Pixel Value Differencing 1% 249 30 LetMeR00t 1
pas_valide Crypt-art 3% 4167 35 m31z0nyx 2

Challenge Results Challenge Results

Pseudo Challenge Lang date
4Sec_Lex8   Steganomobile 31 March 2020 at 01:14
4Sec_Lex8   George et Alfred 31 March 2020 at 01:10
malotru   Steganomobile 31 March 2020 at 00:02
ericl   We need to go deeper 30 March 2020 at 23:55
thomaslinux   Twitter Secret Messages 30 March 2020 at 23:43
Raisin sec   Steganomobile 30 March 2020 at 23:16
pyaillet   Objet PDF 30 March 2020 at 22:58
Yhsla   Audio stégano 30 March 2020 at 22:40
SchizoBoy   Pixel Indicator Technique 30 March 2020 at 22:36
Alci75   Base Jumper 30 March 2020 at 22:28