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.

 20 Challenges

Results Name Validations ↓↑ Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution
pas_valide Hide and seek 1% 197 25 swap89 0
pas_valide Pixel Value Differencing 1% 340 30 LetMeR00t 1
pas_valide Angecryption 1% 389 30 pickle 1
pas_valide Poem from Space 1% 409 15 Cryptanalyse 0
pas_valide Pixel Indicator Technique 1% 429 30 LetMeR00t 1
pas_valide Kitty spy 1% 629 30 LetMeR00t 1
pas_valide Base Jumper 1% 829 25 pickle 2
pas_valide LSB - Uncle Scrooge 1% 1163 30 koma 1
pas_valide PDF Object 2% 2211 25 eilco 6
pas_valide Yellow dots 2% 2538 15 LetMeR00t 3
pas_valide Crypt-art 3% 4774 35 m31z0nyx 2
pas_valide We need to go deeper 3% 5843 20 whoaim 7
pas_valide Audio stegano 4% 6287 20 stickmen 6
pas_valide Some noise 5% 9970 15 Hackira 3
pas_valide Dot and next line 7% 12669 10 SQalp 1
pas_valide Twitter Secret Messages 7% 12710 10 xblade 2
pas_valide George and Alfred 8% 14315 15 g0uZ 1
pas_valide Steganomobile 10% 18918 10 Ryscrow 2
pas_valide Squared 13% 24449 5 g0uZ 6
pas_valide Gunnm 16% 32028 5 g0uZ 3

Challenge Results Challenge Results

Pseudo Challenge Lang date
red_sus_cmpe279   Twitter Secret Messages 2 December 2020 at 05:02
red_sus_cmpe279   Audio stegano 2 December 2020 at 04:58
red_sus_cmpe279   Some noise 2 December 2020 at 04:30
red_sus_cmpe279   Steganomobile 2 December 2020 at 04:10
Shaft   Gunnm 2 December 2020 at 03:25
ericl   Crypt-art 2 December 2020 at 02:54
tvbRR   Points jaunes 2 December 2020 at 02:32
Gusty   Twitter Secret Messages 2 December 2020 at 01:57
tvbRR   Twitter Secret Messages 2 December 2020 at 01:41
tvbRR   Poem from Space 2 December 2020 at 01:38