Polyalphabetic substitution - One Time Pad

60 Points  0x0

A Perfect cipher only if…

Author

Thanat0s,  

Level  Difficulty

Validations

393 Challengers 1%

Note  Notation

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144 Votes

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solutions  Solution

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Challenge Results Challenge Results

Pseudo Challenge Lang Date
Sirius14 Cryptanalyse  Substitution polyalphabétique - Masque jetable fr 20 September 2024 at 16:36
glx1036 Cryptanalyse  Substitution polyalphabétique - Masque jetable fr 28 July 2024 at 14:07
Caesard Cryptanalyse  Substitution polyalphabétique - Masque jetable fr 3 July 2024 at 19:38
Jella Cryptanalysis  Polyalphabetic substitution - One Time Pad en 14 June 2024 at 17:55
sp4r1ng Cryptanalyse  Substitution polyalphabétique - Masque jetable fr 17 April 2024 at 21:28
0rcruxe Cryptanalyse  Substitution polyalphabétique - Masque jetable fr 24 January 2024 at 07:40
Timo Cryptanalyse  Substitution polyalphabétique - Masque jetable fr 23 January 2024 at 14:49
skilo Cryptanalyse  Substitution polyalphabétique - Masque jetable fr 14 January 2024 at 21:14
Oblivios Cryptanalyse  Substitution polyalphabétique - Masque jetable fr 4 January 2024 at 16:32
skav Cryptanalyse  Substitution polyalphabétique - Masque jetable fr 4 January 2024 at 13:45

challenges 75 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution ↓↑ Date
pas_valide ECDSA - Implementation error 1% 71 100 Tosh 0 29 September 2019
pas_valide RSA - Padding 1% 300 35 Tosh 0 9 October 2016
pas_valide NTRU | Weak Parameter 1% 23 60 Vozec 0 13 December 2024
pas_valide RSA - H-rabin 1% 92 60 Vozec 0 21 March 2023
pas_valide Side Channel - AES : CPA 1% 93 50 cb34 0 28 March 2022
pas_valide RSA - Corrupted key 3 1% 201 40 blackndoor 0 5 September 2019
pas_valide Side Channel - AES : first round 1% 96 60 walafc0 0 28 March 2022
pas_valide Polyalphabetic substitution - One Time Pad 1% 393 60 Thanat0s 0 2 June 2013
pas_valide Shamir Secret Sharing - Reduction 1% 54 70 Vozec 0 5 February 2024
pas_valide PHP - mt_rand 1% 177 40 NonStandardModel 0 28 March 2022
pas_valide ElGamal - Fault attack (Introduction) 1% 43 35 Vozec 0 13 December 2024
pas_valide Goldreich Goldwasser Halevi | Weak Parameter 1% 25 50 Vozec 0 13 December 2024
pas_valide AES-PMAC 1% 43 100 Cryptanalyse 0 26 May 2019
pas_valide AES - 4 Rounds 1% 372 35 Cryptanalyse 0 5 September 2018
pas_valide FEAL - Differential Cryptanalysis 1%