Monoalphabetic substitution - Polybe

25 Points  

Point, line, triangle...

Author

koma,  

Level  Difficulty

Validations

1214 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% 24143 5 Xartrick 10
pas_valide Encoding - UU 22% 19339 5 g0uZ 8
pas_valide Hash - Message Digest 5 23% 20047 5 g0uZ 3
pas_valide Hash - SHA-2 12% 10017 5 koma 2
pas_valide Shift cipher 7% 5913 10 m31z0nyx 5
pas_valide Pixel Madness 6% 4724 15 Ryscrow 8
pas_valide ELF32 - PID encryption 4% 3190 15 Lu33Y 9
pas_valide File - PKZIP 4% 3540 15 g0uZ 5
pas_valide Monoalphabetic substitution - Caesar 6% 4926 15 Arod 4
pas_valide Known plaintext - XOR 4% 3087 20 Ryscrow 4
pas_valide Code - Pseudo Random Number Generator 2% 1171 20 Tosh 3
pas_valide File - Insecure storage 1 5% 3843 20 g0uZ 5
pas_valide Polyalphabetic substitution - Vigenère 4% 3383 20 Arod 3
pas_valide System - Android lock pattern 3% 2112 20 Silentd 2
pas_valide Transposition - Rail Fence 3% 1975 20 YellowS4 2
pas_valide AES - CBC - Bit-Flipping Attack 1% 28 25 Tie21 0
pas_valide AES - ECB 2% 888 25 cez40 4
pas_valide LFSR - Known plaintext 1% 97 25 Brissouille 1
pas_valide RSA - Factorisation 2% 1383 25 HacKSpider 4
pas_valide RSA - Decipher Oracle 1% 285 25 Zweisamkeit 2
pas_valide Service - Timing attack 2% 1108 25 g0uZ, koma 3
pas_valide Monoalphabetic substitution - Polybe 2% 1214 25 koma 6
pas_valide Initialisation Vector 1% 632 25 notfound, manticore 3
pas_valide GEDEFU 1% 195 30 makhno 1
pas_valide RSA - Corrupted key V1 1% 59 30 blackndoor 1
pas_valide RSA - Continued fractions 1% 492 30 sambecks 1
pas_valide RSA - Common modulus 1% 374 30 franb 2
pas_valide Service - Hash length extension attack 1% 296 30 koma 1
pas_valide RSA - Padding 1% 85 35 Tosh 0
pas_valide AES128 - CTR 1% 288 40 Tosh 1
pas_valide Discrete logarithm problem 1% 387 40 Thanat0s, RFC4949 2
pas_valide RSA - Corrupted key V2 1% 42 40 blackndoor 0
pas_valide RSA - Multiple recipients 1% 402 40 franb 1
pas_valide Enigma Machine 1% 63 50 peyman 0
pas_valide ECDHE 1% 71 60 Tosh 1
pas_valide Service - CBC Padding 1% 482 60 koma 0
pas_valide Polyalphabetic substitution - One Time Pad 1% 213 60 Thanat0s 0
pas_valide Hash - SHA-3 1% 31 75 Revenger 1