Monoalphabetic substitution - Polybe

25 Points  0x0

Point, line, triangle...

Author

koma,  

Level  Difficulty

Validations

3383 Challengers 2%

Note  Notation

1
2
3
4
5
208 Votes

To reach this part of the site please login

solutions 6 Solutions

Display solutions Submit a solution

Challenge Results Challenge Results

Pseudo Challenge Lang Date
s1ren Cryptanalyse  Substitution monoalphabétique - Polybe fr 25 September 2023 at 22:55
Diphome Cryptanalyse  Substitution monoalphabétique - Polybe fr 25 September 2023 at 12:58
jyan147 Cryptanalyse  Substitution monoalphabétique - Polybe fr 23 September 2023 at 15:07
Aritix Cryptanalyse  Substitution monoalphabétique - Polybe fr 22 September 2023 at 15:59
Zorobabel Cryptanalyse  Substitution monoalphabétique - Polybe fr 22 September 2023 at 11:07
raltheo Cryptanalyse  Substitution monoalphabétique - Polybe fr 22 September 2023 at 01:17
Plezeh Cryptanalyse  Substitution monoalphabétique - Polybe fr 21 September 2023 at 11:17
stanmondesir Cryptanalyse  Substitution monoalphabétique - Polybe fr 18 September 2023 at 17:45
JeremyGardas Cryptanalyse  Substitution monoalphabétique - Polybe fr 17 September 2023 at 17:49
Drahoxx Cryptanalyse  Substitution monoalphabétique - Polybe fr 15 September 2023 at 19:32

challenges 64 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution Date
pas_valide Encoding - ASCII 26% 77842 5 Xartrick 10 4 December 2012
pas_valide Encoding - UU 20% 60204 5 g0uZ 10 7 October 2006
pas_valide Hash - DCC 2% 4568 5 Podalirius 1 13 July 2021
pas_valide Hash - DCC2 2% 4467 5 Podalirius 1 13 July 2021
pas_valide Hash - LM 2% 5009 5 Podalirius 1 13 July 2021
pas_valide Hash - Message Digest 5 19% 54917 5 g0uZ 7 31 January 2010
pas_valide Hash - NT 2% 3940 5 Podalirius 1 13 July 2021
pas_valide Hash - SHA-2 10% 28552 5 koma 4 3 June 2012
pas_valide Shift cipher 6% 17759 10 m31z0nyx 10 16 February 2011
pas_valide CISCO - Salted Password 2% 3283 10 Tidusrose 3 13 July 2021
pas_valide Pixel Madness 5% 13975 15 Ryscrow 10 3 February 2011
pas_valide ELF64 - PID encryption 3% 6965 15 Lu33Y 10 8 February 2012
pas_valide File - PKZIP 4% 10973 15 g0uZ 6 30 August 2010
pas_valide Monoalphabetic substitution - Caesar 5% 13916 15 Arod 5 22 October 2011
pas_valide Circular Bit Shift 1% 261 20 BlackRaven 0 21 March 2023
pas_valide Known plaintext - XOR 3% 7860 20 Ryscrow 5 3 February 2011
pas_valide Code - Pseudo Random Number Generator 2% 3052 20 Tosh 6 19 December 2012
pas_valide Encoding - Codebook 1% 134 20 n3rada 0 21 March 2023
pas_valide File - Insecure storage 1 3% 8119 20 g0uZ 7 6 February 2012
pas_valide Polyalphabetic substitution - Vigenère 3% 8982 20 Arod 3 26 October 2011
pas_valide System - Android lock pattern 2% 5972 20 Silentd 5 23 December 2012
pas_valide Transposition - Rail Fence 2% 5574 20 YellowS4 4 6 April 2014
pas_valide AES - CBC - Bit-Flipping Attack 1% 1350 25 Tie21 4 17 June 2018
pas_valide AES - ECB 1% 2237 25 cez40 4 29 November 2015
pas_valide LFSR - Known plaintext 1% 838 25 Brissouille 2 28 November 2017
pas_valide RSA - Factorisation 2% 4121 25 HacKSpider 5 12 September 2010
pas_valide RSA - Decipher Oracle 1% 1642 25 Zweisamkeit 3 11 May 2017
pas_valide Service - Timing attack 1% 2504 25 g0uZ , koma 4 28 October 2012
pas_valide Monoalphabetic substitution - Polybe 2% 3380 25 koma 6 6 December 2011
pas_valide Twisted secret 1% 374 25 NonStandardModel 1 14 August 2020
pas_valide Initialisation Vector 1% 1844 25 manticore , notfound404 6 25 August 2015
pas_valide Hill Cipher 1% 97 30 LetMeR00t 0 21 March 2023
pas_valide GEDEFU 1% 527 30 makhno 1 13 September 2016
pas_valide OTP - Implementation error 1% 334 30 Podalirius 2 22 March 2021
pas_valide RSA - Corrupted key 1 1% 378 30 blackndoor 2 28 November 2017
pas_valide RSA - Continued fractions 1% 1280 30 sambecks 1 8 September 2015
pas_valide RSA - Common modulus 1% 1638 30 franb 3 24 December 2016
pas_valide Service - Hash length extension attack 1% 986 30 koma 1 19 August 2015
pas_valide AES - 4 Rounds 1% 283 35 Cryptanalyse 0 5 September 2018
pas_valide ECDSA - Introduction 1% 255 35 Jrmbt 2 22 September 2019
pas_valide RSA - Padding 1% 244 35 Tosh 0 9 October 2016
pas_valide RSA - Signature 1% 146 35 sar 1 9 March 2020
pas_valide AES128 - CTR 1% 627 40 Tosh 2 28 August 2015
pas_valide PHP - mt_rand 1% 106 40 NonStandardModel 0 28 March 2022
pas_valide Discrete logarithm problem 1% 1049 40 RFC4949 3 8 June 2014
pas_valide RSA - Corrupted key 2 1% 267 40 blackndoor 1 11 January 2018
pas_valide RSA - Corrupted key 3 1% 150 40 blackndoor 0 5 September 2019
pas_valide RSA - Multiple recipients 1% 1326 40 franb 4 29 November 2015
pas_valide AES - Fault attack #1 1% 149 50 Cryptanalyse 1 20 September 2018
pas_valide FEAL - Differential Cryptanalysis 1% 27 50 Tosh 0 28 March 2022
pas_valide Enigma Machine 1% 232 50 peyman 2 12 October 2016
pas_valide Side Channel - AES : CPA 1% 54 50 cb34 0 28 March 2022
pas_valide ECDHE 1% 205 60 Tosh 2 20 November 2016
pas_valide RSA - H-rabin 1% 29 60 Vozec 0 21 March 2023
pas_valide RSA - Lee cooper 1% 125 60 blackndoor , Synacktiv 1 7 November 2019
pas_valide Service - CBC Padding 1% 1143 60 koma 1 4 October 2012
pas_valide Side Channel - AES : first round 1% 54 60 walafc0 0 28 March 2022
pas_valide Polyalphabetic substitution - One Time Pad 1% 362 60 Thanat0s 0 2 June 2013
pas_valide White-Box Cryptography 1% 191 60 Cryptanalyse 3 21 October 2018
pas_valide AES - Weaker variant 1% 119 70 Cryptanalyse 1 29 August 2018
pas_valide Hash - SHA-3 1% 145 75 Revenger 1 10 December 2016
pas_valide AES - Fault attack #2 1% 112 80 Cryptanalyse 1 20 September 2018
pas_valide AES-PMAC 1% 33 100 Cryptanalyse 0 26 May 2019
pas_valide ECDSA - Implementation error 1% 51 100 Tosh 0 29 September 2019