Polyalphabetic substitution - Vigenère

20 Points  0x0

Basics

Author

Arod,  

Level  Difficulty

Validations

6260 Challengers 4%

Note  Notation

259 Votes

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 50 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution
pas_valide Encoding - ASCII 26% 50470 5 Xartrick 10
pas_valide Encoding - UU 21% 39611 5 g0uZ 10
pas_valide Hash - Message Digest 5 21% 40000 5 g0uZ 6
pas_valide Hash - SHA-2 11% 20420 5 koma 4
pas_valide Shift cipher 7% 12463 10 m31z0nyx 8
pas_valide Pixel Madness 6% 9822 15 Ryscrow 10
pas_valide ELF64 - PID encryption 3% 5323 15 Lu33Y 10
pas_valide File - PKZIP 4% 7355 15 g0uZ 6
pas_valide Monoalphabetic substitution - Caesar 5% 9357 15 Arod 4
pas_valide Known plaintext - XOR 3% 5625 20 Ryscrow 5
pas_valide Code - Pseudo Random Number Generator 2% 2171 20 Tosh 5
pas_valide File - Insecure storage 1 4% 5904 20 g0uZ 5
pas_valide Polyalphabetic substitution - Vigenère 4% 6259 20 Arod 3
pas_valide System - Android lock pattern 3% 4070 20 Silentd 4
pas_valide Transposition - Rail Fence 2% 3795 20 YellowS4 3
pas_valide AES - CBC - Bit-Flipping Attack 1% 666 25 Tie21 1
pas_valide AES - ECB 1% 1596 25 cez40 4
pas_valide LFSR - Known plaintext 1% 459 25 Brissouille 1
pas_valide RSA - Factorisation 2% 2640 25 HacKSpider 5
pas_valide RSA - Decipher Oracle 1% 875 25 Zweisamkeit 3
pas_valide Service - Timing attack 1% 1779 25 g0uZ, koma 4
pas_valide Monoalphabetic substitution - Polybe 2% 2208 25 koma 6
pas_valide Twisted secret 1% 76 25 nonstandardmodel 1
pas_valide Initialisation Vector 1% 1205 25 manticore, notfound404 5
pas_valide GEDEFU 1% 400 30 makhno 1
pas_valide RSA - Corrupted key 1 1% 215 30 blackndoor 2
pas_valide RSA - Continued fractions 1% 896 30 sambecks 1
pas_valide RSA - Common modulus 1% 944 30 franb 2
pas_valide Service - Hash length extension attack 1% 596 30 koma 1
pas_valide AES - 4 Rounds 1% 155 35 Cryptanalyse 0
pas_valide ECDSA - Introduction 1% 124 35 Jrmbt 1
pas_valide RSA - Padding 1% 174 35 Tosh 0
pas_valide RSA - Signature 1% 62 35 s4r 1
pas_valide AES128 - CTR 1% 461 40 Tosh 1
pas_valide Discrete logarithm problem 1% 632 40 Thanat0s, RFC4949 3
pas_valide RSA - Corrupted key 2 1% 144 40 blackndoor 0
pas_valide RSA - Corrupted key 3 1% 72 40 blackndoor 0
pas_valide RSA - Multiple recipients 1% 807 40 franb 3
pas_valide AES - Fault attack #1 1% 81 50 Cryptanalyse 1
pas_valide Enigma Machine 1% 146 50 peyman 2
pas_valide ECDHE 1% 144 60 Tosh 2
pas_valide RSA - Lee cooper 1% 62 60 blackndoor, Synacktiv 0
pas_valide Service - CBC Padding 1% 795 60 koma 1
pas_valide Polyalphabetic substitution - One Time Pad 1% 293 60 Thanat0s 0
pas_valide White-Box Cryptography 1% 108 60 Cryptanalyse 3
pas_valide AES - Weaker variant 1% 50 70 Cryptanalyse 1
pas_valide Hash - SHA-3 1% 80 75 Revenger 1
pas_valide AES - Fault attack #2 1% 60 80 Cryptanalyse 1
pas_valide AES-PMAC 1% 11 100 Cryptanalyse 0
pas_valide ECDSA - Implementation error 1% 20 100 Tosh 0