Polyalphabetic substitution - Vigenère

20 Points  0x0

Basics

Author

Arod,  

Level  Difficulty

Validations

7980 Challengers 4%

Note  Notation

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5
318 Votes

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solutions 3 Solutions

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Challenge Results Challenge Results

Pseudo Challenge Lang Date
PizZLy@root Cryptanalyse  Substitution polyalphabétique - Vigenère fr 27 June 2022 at 00:49
Rohazon_Ludo Cryptanalyse  Substitution polyalphabétique - Vigenère fr 26 June 2022 at 21:47
gommette Cryptanalyse  Substitution polyalphabétique - Vigenère fr 26 June 2022 at 12:37
glop Cryptanalyse  Substitution polyalphabétique - Vigenère fr 26 June 2022 at 03:43
rettbl Cryptanalyse  Substitution polyalphabétique - Vigenère fr 26 June 2022 at 02:01
minimax Cryptanalyse  Substitution polyalphabétique - Vigenère fr 25 June 2022 at 22:37
Redhpm Cryptanalyse  Substitution polyalphabétique - Vigenère fr 25 June 2022 at 20:02
Gryfman Cryptanalyse  Substitution polyalphabétique - Vigenère fr 25 June 2022 at 19:20
Kutori Cryptanalyse  Substitution polyalphabétique - Vigenère fr 25 June 2022 at 18:52
cmddel Cryptanalyse  Substitution polyalphabétique - Vigenère fr 24 June 2022 at 23:06

challenges 60 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution Date
pas_valide Encoding - ASCII 26% 67586 5 Xartrick 10 4 December 2012
pas_valide Encoding - UU 21% 52270 5 g0uZ 10 7 October 2006
pas_valide Hash - DCC 1% 2291 5 Podalirius 1 13 July 2021
pas_valide Hash - DCC2 1% 2254 5 Podalirius 1 13 July 2021
pas_valide Hash - LM 2% 2678 5 Podalirius 1 13 July 2021
pas_valide Hash - Message Digest 5 20% 49716 5 g0uZ 7 31 January 2010
pas_valide Hash - NT 1% 1840 5 Podalirius 1 13 July 2021
pas_valide Hash - SHA-2 10% 25583 5 koma 4 3 June 2012
pas_valide Shift cipher 7% 15850 10 m31z0nyx 10 16 February 2011
pas_valide CISCO - Salted Password 1% 1687 10 Tidusrose 3 13 July 2021
pas_valide Pixel Madness 5% 12480 15 Ryscrow 10 3 February 2011
pas_valide ELF64 - PID encryption 3% 6295 15 Lu33Y 10 8 February 2012
pas_valide File - PKZIP 4% 9523 15 g0uZ 6 30 August 2010
pas_valide Monoalphabetic substitution - Caesar 5% 12211 15 Arod 5 22 October 2011
pas_valide Known plaintext - XOR 3% 6981 20 Ryscrow 5 3 February 2011
pas_valide Code - Pseudo Random Number Generator 2% 2717 20 Tosh 6 19 December 2012
pas_valide File - Insecure storage 1 3% 7216 20 g0uZ 7 6 February 2012
pas_valide Polyalphabetic substitution - Vigenère 4% 7958 20 Arod 3 26 October 2011
pas_valide System - Android lock pattern 3% 5254 20 Silentd 5 23 December 2012
pas_valide Transposition - Rail Fence 2% 4924 20 YellowS4 4 6 April 2014
pas_valide AES - CBC - Bit-Flipping Attack 1% 1059 25 Tie21 4 17 June 2018
pas_valide AES - ECB 1% 1956 25 cez40 4 29 November 2015
pas_valide LFSR - Known plaintext 1% 673 25 Brissouille 2 28 November 2017
pas_valide RSA - Factorisation 2% 3494 25 HacKSpider 5 12 September 2010
pas_valide RSA - Decipher Oracle 1% 1299 25 Zweisamkeit 3 11 May 2017
pas_valide Service - Timing attack 1% 2186 25 g0uZ 4 28 October 2012
pas_valide Monoalphabetic substitution - Polybe 2% 2879 25 koma 6 6 December 2011
pas_valide Twisted secret 1% 268 25 NonStandardModel 1 14 August 2020
pas_valide Initialisation Vector 1% 1555 25 manticore 6 25 August 2015
pas_valide GEDEFU 1% 481 30 makhno 1 13 September 2016
pas_valide OTP - Implementation error 1% 202 30 Podalirius 2 22 March 2021
pas_valide RSA - Corrupted key 1 1% 311 30 blackndoor 2 28 November 2017
pas_valide RSA - Continued fractions 1% 1106 30 sambecks 1 8 September 2015
pas_valide RSA - Common modulus 1% 1317 30 franb 3 24 December 2016
pas_valide Service - Hash length extension attack 1% 813 30 koma 1 19 August 2015
pas_valide AES - 4 Rounds 1% 219 35 Cryptanalyse 0 5 September 2018
pas_valide ECDSA - Introduction 1% 209 35 Jrmbt 2 22 September 2019
pas_valide RSA - Padding 1% 215 35 Tosh 0 9 October 2016
pas_valide RSA - Signature 1% 109 35 sar 1 9 March 2020
pas_valide AES128 - CTR 1% 554 40 Tosh 2 28 August 2015
pas_valide PHP - mt_rand 1% 57 40 NonStandardModel 0 28 March 2022
pas_valide Discrete logarithm problem 1% 857 40 RFC4949 3 8 June 2014
pas_valide RSA - Corrupted key 2 1% 207 40 blackndoor 1 11 January 2018
pas_valide RSA - Corrupted key 3 1% 107 40 blackndoor 0 5 September 2019
pas_valide RSA - Multiple recipients 1% 1075 40 franb 3 29 November 2015
pas_valide AES - Fault attack #1 1% 120 50 Cryptanalyse 1 20 September 2018
pas_valide FEAL - Differential Cryptanalysis 1% 8 50 Tosh 0 28 March 2022
pas_valide Enigma Machine 1% 206 50 peyman 2 12 October 2016
pas_valide Side Channel - AES : CPA 1% 6 50 cb34 0 28 March 2022
pas_valide ECDHE 1% 187 60 Tosh 2 20 November 2016
pas_valide RSA - Lee cooper 1% 98 60 blackndoor 1 7 November 2019
pas_valide Service - CBC Padding 1% 980 60 koma 1 4 October 2012
pas_valide Side Channel - AES : first round 1% 2 60 walafc0 0 28 March 2022
pas_valide Polyalphabetic substitution - One Time Pad 1% 342 60 Thanat0s 0 2 June 2013
pas_valide White-Box Cryptography 1% 165 60 Cryptanalyse 3 21 October 2018
pas_valide AES - Weaker variant 1% 100 70 Cryptanalyse 1 29 August 2018
pas_valide Hash - SHA-3 1% 123 75 Revenger 1 10 December 2016
pas_valide AES - Fault attack #2 1% 87 80 Cryptanalyse 1 20 September 2018
pas_valide AES-PMAC 1% 22 100 Cryptanalyse 0 26 May 2019
pas_valide ECDSA - Implementation error 1% 41 100 Tosh 0 29 September 2019