PHP - mt_rand

40 Points  0x0

Request-Twins

Author

NonStandardModel,  

Level  Difficulty

Validations

59 Challengers 1%

Note  Notation

27 Votes

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solutions  Solution

Challenge Results Challenge Results

Pseudo Challenge Lang Date
0xFAb Cryptanalyse  PHP - mt_rand fr 30 July 2022 at 02:57
Tosh Cryptanalysis  PHP - mt_rand en 29 July 2022 at 21:25
Landais Cryptanalyse  PHP - mt_rand fr 11 July 2022 at 22:09
client9784 Cryptanalyse  PHP - mt_rand fr 27 June 2022 at 16:56
Kkameleon Cryptanalyse  PHP - mt_rand fr 15 June 2022 at 03:16
Achléole Cryptanalyse  PHP - mt_rand fr 13 June 2022 at 23:12
RootMe Cryptanalyse  PHP - mt_rand fr 12 June 2022 at 18:10
mjuuum Cryptanalysis  PHP - mt_rand en 25 May 2022 at 17:47
Robby Cryptanalyse  PHP - mt_rand fr 22 May 2022 at 16:42
Pooky' Cryptanalyse  PHP - mt_rand fr 21 May 2022 at 23:51

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% 68407 5 Xartrick 10 4 December 2012
pas_valide Encoding - UU 21% 52907 5 g0uZ 10 7 October 2006
pas_valide Hash - DCC 1% 2460 5 Podalirius 1 13 July 2021
pas_valide Hash - DCC2 1% 2416 5 Podalirius 1 13 July 2021
pas_valide Hash - LM 2% 2872 5 Podalirius 1 13 July 2021
pas_valide Hash - Message Digest 5 20% 50098 5 g0uZ 7 31 January 2010
pas_valide Hash - NT 1% 1980 5 Podalirius 1 13 July 2021
pas_valide Hash - SHA-2 10% 25801 5 koma 4 3 June 2012
pas_valide Shift cipher 7% 16007 10 m31z0nyx 10 16 February 2011
pas_valide CISCO - Salted Password 1% 1834 10 Tidusrose 3 13 July 2021
pas_valide Pixel Madness 5% 12612 15 Ryscrow 10 3 February 2011
pas_valide ELF64 - PID encryption 3% 6357 15 Lu33Y 10 8 February 2012
pas_valide File - PKZIP 4% 9645 15 g0uZ 6 30 August 2010
pas_valide Monoalphabetic substitution - Caesar 5% 12338 15 Arod 5 22 October 2011
pas_valide Known plaintext - XOR 3% 7066 20 Ryscrow 5 3 February 2011
pas_valide Code - Pseudo Random Number Generator 2% 2758 20 Tosh 6 19 December 2012
pas_valide File - Insecure storage 1 3% 7314 20 g0uZ 7 6 February 2012
pas_valide Polyalphabetic substitution - Vigenère 4% 8076 20 Arod 3 26 October 2011
pas_valide System - Android lock pattern 3% 5340 20 Silentd 5 23 December 2012
pas_valide Transposition - Rail Fence 2% 4988 20 YellowS4 4 6 April 2014
pas_valide AES - CBC - Bit-Flipping Attack 1% 1078 25 Tie21 4 17 June 2018
pas_valide AES - ECB 1% 1977 25 cez40 4 29 November 2015
pas_valide LFSR - Known plaintext 1% 682 25 Brissouille 2 28 November 2017
pas_valide RSA - Factorisation 2% 3546 25 HacKSpider 5 12 September 2010
pas_valide RSA - Decipher Oracle 1% 1333 25 Zweisamkeit 3 11 May 2017
pas_valide Service - Timing attack 1% 2214 25 g0uZ 4 28 October 2012
pas_valide Monoalphabetic substitution - Polybe 2% 2927 25 koma 6 6 December 2011
pas_valide Twisted secret 1% 275 25 NonStandardModel 1 14 August 2020
pas_valide Initialisation Vector 1% 1573 25 manticore 6 25 August 2015
pas_valide GEDEFU 1% 482 30 makhno 1 13 September 2016
pas_valide OTP - Implementation error 1% 209 30 Podalirius 2 22 March 2021
pas_valide RSA - Corrupted key 1 1% 315 30 blackndoor 2 28 November 2017
pas_valide RSA - Continued fractions 1% 1116 30 sambecks 1 8 September 2015
pas_valide RSA - Common modulus 1% 1341 30 franb 3 24 December 2016
pas_valide Service - Hash length extension attack 1% 823 30 koma 1 19 August 2015
pas_valide AES - 4 Rounds 1% 225 35 Cryptanalyse 0 5 September 2018
pas_valide ECDSA - Introduction 1% 213 35 Jrmbt 2 22 September 2019
pas_valide RSA - Padding 1% 217 35 Tosh 0 9 October 2016
pas_valide RSA - Signature 1% 113 35 sar 1 9 March 2020
pas_valide AES128 - CTR 1% 558 40 Tosh 2 28 August 2015
pas_valide PHP - mt_rand 1% 61 40 NonStandardModel 0 28 March 2022
pas_valide Discrete logarithm problem 1% 866 40 RFC4949 3 8 June 2014
pas_valide RSA - Corrupted key 2 1% 210 40 blackndoor 1 11 January 2018
pas_valide RSA - Corrupted key 3 1% 108 40 blackndoor 0 5 September 2019
pas_valide RSA - Multiple recipients 1% 1090 40 franb 3 29 November 2015
pas_valide AES - Fault attack #1 1% 123 50 Cryptanalyse 1 20 September 2018
pas_valide FEAL - Differential Cryptanalysis 1% 10 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% 14 50 cb34 0 28 March 2022
pas_valide ECDHE 1% 189 60 Tosh 2 20 November 2016
pas_valide RSA - Lee cooper 1% 100 60 blackndoor 1 7 November 2019
pas_valide Service - CBC Padding 1% 992 60 koma 1 4 October 2012
pas_valide Side Channel - AES : first round 1% 14 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% 168 60 Cryptanalyse 3 21 October 2018
pas_valide AES - Weaker variant 1% 102 70 Cryptanalyse 1 29 August 2018
pas_valide Hash - SHA-3 1% 124 75 Revenger 1 10 December 2016
pas_valide AES - Fault attack #2 1% 88 80 Cryptanalyse 1 20 September 2018
pas_valide AES-PMAC 1% 22 100 Cryptanalyse 0 26 May 2019
pas_valide ECDSA - Implementation error 1% 42 100 Tosh 0 29 September 2019