Code - Pseudo Random Number Generator

20 Points  0x0

Strange encryption.

Author

Tosh,  

Level  Difficulty

Validations

2988 Challengers 2%

Note  Notation

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264 Votes

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solutions 6 Solutions

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Challenge Results Challenge Results

Pseudo Challenge Lang Date
moaad321 Cryptanalysis  Code - Pseudo Random Number Generator en 1 June 2023 at 21:20
xcv Cryptanalyse  Code - Pseudo Random Number Generator fr 31 May 2023 at 18:29
glxblt Cryptanalyse  Code - Pseudo Random Number Generator fr 31 May 2023 at 14:19
Proteus Cryptanalysis  Code - Pseudo Random Number Generator en 30 May 2023 at 16:31
Jean Poulélaouen Cryptanalyse  Code - Pseudo Random Number Generator fr 29 May 2023 at 15:26
MrXnight Cryptanalyse  Code - Pseudo Random Number Generator fr 28 May 2023 at 18:27
sky Cryptanalyse  Code - Pseudo Random Number Generator fr 26 May 2023 at 02:16
Petardier ferme Cryptanalyse  Code - Pseudo Random Number Generator fr 23 May 2023 at 22:17
LesChats Cryptanalyse  Code - Pseudo Random Number Generator fr 23 May 2023 at 21:39
MikeHorn Cryptanalysis  Code - Pseudo Random Number Generator en 22 May 2023 at 12:09

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% 75926 5 Xartrick 10 4 December 2012
pas_valide Encoding - UU 20% 58775 5 g0uZ 10 7 October 2006
pas_valide Hash - DCC 2% 4048 5 Podalirius 1 13 July 2021
pas_valide Hash - DCC2 2% 4024 5 Podalirius 1 13 July 2021
pas_valide Hash - LM 2% 4543 5 Podalirius 1 13 July 2021
pas_valide Hash - Message Digest 5 19% 53931 5 g0uZ 7 31 January 2010
pas_valide Hash - NT 2% 3575 5 Podalirius 1 13 July 2021
pas_valide Hash - SHA-2 10% 28048 5 koma 4 3 June 2012
pas_valide Shift cipher 6% 17371 10 m31z0nyx 10 16 February 2011
pas_valide CISCO - Salted Password 2% 2985 10 Tidusrose 3 13 July 2021
pas_valide Pixel Madness 5% 13661 15 Ryscrow 10 3 February 2011
pas_valide ELF64 - PID encryption 3% 6822 15 Lu33Y 10 8 February 2012
pas_valide File - PKZIP 4% 10680 15 g0uZ 6 30 August 2010
pas_valide Monoalphabetic substitution - Caesar 5% 13627 15 Arod 5 22 October 2011
pas_valide Circular Bit Shift 1% 37 20 BlackRaven 0 21 March 2023
pas_valide Known plaintext - XOR 3% 7690 20 Ryscrow 5 3 February 2011
pas_valide Code - Pseudo Random Number Generator 2% 2988 20 Tosh 6 19 December 2012
pas_valide Encoding - Codebook 1% 79 20 n3rada 0 21 March 2023
pas_valide File - Insecure storage 1 3% 7923 20 g0uZ 7 6 February 2012
pas_valide Polyalphabetic substitution - Vigenère 3% 8823 20 Arod 3 26 October 2011
pas_valide System - Android lock pattern 2% 5820 20 Silentd 5 23 December 2012
pas_valide Transposition - Rail Fence 2% 5451 20 YellowS4 4 6 April 2014
pas_valide AES - CBC - Bit-Flipping Attack 1% 1281 25 Tie21 4 17 June 2018
pas_valide AES - ECB 1% 2169 25 cez40 4 29 November 2015
pas_valide LFSR - Known plaintext 1% 809 25 Brissouille 2 28 November 2017
pas_valide RSA - Factorisation 2% 3996 25 HacKSpider 5 12 September 2010
pas_valide RSA - Decipher Oracle 1% 1564 25 Zweisamkeit 3 11 May 2017
pas_valide Service - Timing attack 1% 2437 25 g0uZ 4 28 October 2012
pas_valide Monoalphabetic substitution - Polybe 2% 3267 25 koma 6 6 December 2011
pas_valide Twisted secret 1% 354 25 NonStandardModel 1 14 August 2020
pas_valide Initialisation Vector 1% 1768 25 manticore 6 25 August 2015
pas_valide Hill Cipher 1% 68 30 LetMeR00t 0 21 March 2023
pas_valide GEDEFU 1% 518 30 makhno 1 13 September 2016
pas_valide OTP - Implementation error 1% 302 30 Podalirius 2 22 March 2021
pas_valide RSA - Corrupted key 1 1% 363 30 blackndoor 2 28 November 2017
pas_valide RSA - Continued fractions 1% 1242 30 sambecks 1 8 September 2015
pas_valide RSA - Common modulus 1% 1564 30 franb 3 24 December 2016
pas_valide Service - Hash length extension attack 1% 937 30 koma 1 19 August 2015
pas_valide AES - 4 Rounds 1% 266 35 Cryptanalyse 0 5 September 2018
pas_valide ECDSA - Introduction 1% 245 35 Jrmbt 2 22 September 2019
pas_valide RSA - Padding 1% 236 35 Tosh 0 9 October 2016
pas_valide RSA - Signature 1% 137 35 sar 1 9 March 2020
pas_valide AES128 - CTR 1% 610 40 Tosh 2 28 August 2015
pas_valide PHP - mt_rand 1% 97 40 NonStandardModel 0 28 March 2022
pas_valide Discrete logarithm problem 1% 993 40 RFC4949 3 8 June 2014
pas_valide RSA - Corrupted key 2 1% 252 40 blackndoor 1 11 January 2018
pas_valide RSA - Corrupted key 3 1% 137 40 blackndoor 0 5 September 2019
pas_valide RSA - Multiple recipients 1% 1261 40 franb 4 29 November 2015
pas_valide AES - Fault attack #1 1% 139 50 Cryptanalyse 1 20 September 2018
pas_valide FEAL - Differential Cryptanalysis 1% 24 50 Tosh 0 28 March 2022
pas_valide Enigma Machine 1% 225 50 peyman 2 12 October 2016
pas_valide Side Channel - AES : CPA 1% 43 50 cb34 0 28 March 2022
pas_valide ECDHE 1% 202 60 Tosh 2 20 November 2016
pas_valide RSA - H-rabin 1% 8 60 Vozec 0 21 March 2023
pas_valide RSA - Lee cooper 1% 113 60 blackndoor 1 7 November 2019
pas_valide Service - CBC Padding 1% 1091 60 koma 1 4 October 2012
pas_valide Side Channel - AES : first round 1% 42 60 walafc0 0 28 March 2022
pas_valide Polyalphabetic substitution - One Time Pad 1% 356 60 Thanat0s 0 2 June 2013
pas_valide White-Box Cryptography 1% 185 60 Cryptanalyse 3 21 October 2018
pas_valide AES - Weaker variant 1% 115 70 Cryptanalyse 1 29 August 2018
pas_valide Hash - SHA-3 1% 142 75 Revenger 1 10 December 2016
pas_valide AES - Fault attack #2 1% 104 80 Cryptanalyse 1 20 September 2018
pas_valide AES-PMAC 1% 31 100 Cryptanalyse 0 26 May 2019
pas_valide ECDSA - Implementation error 1% 51 100 Tosh 0 29 September 2019