File - PKZIP

15 Points  

A protected ZIP file, you have to find what’s inside.

Author

g0uZ,  

Level  Difficulty

Validations

5159 Challengers 4%

Note  Notation

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184 Votes
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Solution 5 Solutions

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Challenge Results Challenge Results

Pseudo Challenge Lang date
TayebJaaba   File - PKZIP en 19 July 2019 at 22:47
Hugo Derick   Fichier - PKZIP fr 19 July 2019 at 21:36
MrCuni   Fichier - PKZIP fr 19 July 2019 at 16:05
POTTIER   Fichier - PKZIP fr 18 July 2019 at 18:10
Konamifox   Fichier - PKZIP fr 18 July 2019 at 16:34
kutkin   Fichier - PKZIP fr 18 July 2019 at 14:47
ki$ar   File - PKZIP en 17 July 2019 at 23:49
Fernando   File - PKZIP es 17 July 2019 at 23:09
tétraheadrik   Fichier - PKZIP fr 17 July 2019 at 22:43
SigWald   File - PKZIP en 17 July 2019 at 17:46

Challenges associated with this section 44 Challenges

Results Challenge's Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution
pas_valide Encoding - ASCII 26% 35981 5 Xartrick 10
pas_valide Encoding - UU 21% 28586 5 g0uZ 10
pas_valide Hash - Message Digest 5 21% 29284 5 g0uZ 6
pas_valide Hash - SHA-2 11% 14607 5 koma 4
pas_valide Shift cipher 7% 8645 10 m31z0nyx 5
pas_valide Pixel Madness 5% 6976 15 Ryscrow 10
pas_valide ELF64 - PID encryption 3% 4042 15 Lu33Y 10
pas_valide File - PKZIP 4% 5156 15 g0uZ 5
pas_valide Monoalphabetic substitution - Caesar 5% 6755 15 Arod 4
pas_valide Known plaintext - XOR 4% 4246 20 Ryscrow 4
pas_valide Code - Pseudo Random Number Generator 2% 1600 20 Tosh 5
pas_valide File - Insecure storage 1 4% 4748 20 g0uZ 5
pas_valide Polyalphabetic substitution - Vigenère 4% 4582 20 Arod 3
pas_valide System - Android lock pattern 3% 2936 20 Silentd 3
pas_valide Transposition - Rail Fence 2% 2770 20 YellowS4 2
pas_valide AES - CBC - Bit-Flipping Attack 1% 266 25 Tie21 1
pas_valide AES - ECB 1% 1162 25 cez40 4
pas_valide LFSR - Known plaintext 1% 215 25 Brissouille 1
pas_valide RSA - Factorisation 2% 1936 25 HacKSpider 4
pas_valide RSA - Decipher Oracle 1% 515 25 Zweisamkeit 3
pas_valide Service - Timing attack 2% 1416 25 g0uZ, koma 3
pas_valide Monoalphabetic substitution - Polybe 2% 1590 25 koma 6
pas_valide Initialisation Vector 1% 856 25 manticore, notfound 3
pas_valide GEDEFU 1% 272 30 makhno 1
pas_valide RSA - Corrupted key V1 1% 112 30 blackndoor 2
pas_valide RSA - Continued fractions 1% 662 30 sambecks 1
pas_valide RSA - Common modulus 1% 601 30 franb 2
pas_valide Service - Hash length extension attack 1% 395 30 koma 1
pas_valide AES - 4 Rounds 1% 78 35 Cryptanalyse 0
pas_valide RSA - Padding 1% 119 35 Tosh 0
pas_valide AES128 - CTR 1% 366 40 Tosh 1
pas_valide Discrete logarithm problem 1% 491 40 Thanat0s, RFC4949 3
pas_valide RSA - Corrupted key V2 1% 88 40 blackndoor 0
pas_valide RSA - Multiple recipients 1% 560 40 franb 3
pas_valide AES - Fault attack #1 1% 41 50 Cryptanalyse 1
pas_valide Enigma Machine 1% 98 50 peyman 1
pas_valide ECDHE 1% 106 60 Tosh 2
pas_valide Service - CBC Padding 1% 601 60 koma 1
pas_valide Polyalphabetic substitution - One Time Pad 1% 250 60 Thanat0s 0
pas_valide White-Box Cryptography 1% 66 60 Cryptanalyse 2
pas_valide AES - Weaker variant 1% 28 70 Cryptanalyse 0
pas_valide Hash - SHA-3 1% 56 75 Revenger 1
pas_valide AES - Fault attack #2 1% 28 80 Cryptanalyse 0
pas_valide AES-PMAC 1% 4 100 Cryptanalyse 0