Monoalphabetic substitution - Polybe

25 Points  

Point, line, triangle...

Author

koma,  

Level  Difficulty

Validations

1270 Challengers 2%

Note  Notation

101 Votes
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Challenges associated with this section 38 Challenges

Results Challenge's Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution
pas_valide Encoding - ASCII 28% 25227 5 Xartrick 10
pas_valide Encoding - UU 22% 20230 5 g0uZ 9
pas_valide Hash - Message Digest 5 23% 20937 5 g0uZ 4
pas_valide Hash - SHA-2 12% 10582 5 koma 3
pas_valide Shift cipher 7% 6274 10 m31z0nyx 5
pas_valide Pixel Madness 6% 5035 15 Ryscrow 10
pas_valide ELF32 - PID encryption 4% 3284 15 Lu33Y 10
pas_valide File - PKZIP 5% 3768 15 g0uZ 5
pas_valide Monoalphabetic substitution - Caesar 6% 5105 15 Arod 4
pas_valide Known plaintext - XOR 4% 3233 20 Ryscrow 4
pas_valide Code - Pseudo Random Number Generator 2% 1230 20 Tosh 4
pas_valide File - Insecure storage 1 5% 3984 20 g0uZ 5
pas_valide Polyalphabetic substitution - Vigenère 4% 3510 20 Arod 3
pas_valide System - Android lock pattern 3% 2227 20 Silentd 2
pas_valide Transposition - Rail Fence 3% 2069 20 YellowS4 2
pas_valide AES - CBC - Bit-Flipping Attack 1% 70 25 Tie21 0
pas_valide AES - ECB 1% 919 25 cez40 4
pas_valide LFSR - Known plaintext 1% 112 25 Brissouille 1
pas_valide RSA - Factorisation 2% 1439 25 HacKSpider 4
pas_valide RSA - Decipher Oracle 1% 310 25 Zweisamkeit 2
pas_valide Service - Timing attack 2% 1144 25 g0uZ, koma 3
pas_valide Monoalphabetic substitution - Polybe 2% 1270 25 koma 6
pas_valide Initialisation Vector 1% 655 25 notfound, manticore 3
pas_valide GEDEFU 1% 201 30 makhno 1
pas_valide RSA - Corrupted key V1 1% 65 30 blackndoor 1
pas_valide RSA - Continued fractions 1% 518 30 sambecks 1
pas_valide RSA - Common modulus 1% 401 30 franb 2
pas_valide Service - Hash length extension attack 1% 312 30 koma 1
pas_valide RSA - Padding 1% 91 35 Tosh 0
pas_valide AES128 - CTR 1% 294 40 Tosh 1
pas_valide Discrete logarithm problem 1% 398 40 Thanat0s, RFC4949 2
pas_valide RSA - Corrupted key V2 1% 45 40 blackndoor 0
pas_valide RSA - Multiple recipients 1% 419 40 franb 3
pas_valide Enigma Machine 1% 65 50 peyman 0
pas_valide ECDHE 1% 78 60 Tosh 1
pas_valide Service - CBC Padding 1% 493 60 koma 0
pas_valide Polyalphabetic substitution - One Time Pad 1% 216 60 Thanat0s 0
pas_valide Hash - SHA-3 1% 35 75 Revenger 1