FEAL - Differential Cryptanalysis

50 Points  0x0

Chosen plaintext attack

Author

Tosh,  

Level  Difficulty

Validations

90 Challengers 1%

Note  Notation

1
2
3
4
5
23 Votes

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solutions 1 Solution

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Challenge Results Challenge Results

Pseudo Challenge Lang Date
Nat2626 Cryptanalyse  FEAL - Cryptanalyse différentielle fr 17 May 2026 at 22:47
_cthulu Cryptanalyse  FEAL - Cryptanalyse différentielle fr 7 May 2026 at 22:34
Bd3nneu Cryptanalysis  FEAL - Differential Cryptanalysis en 1 May 2026 at 10:30
gweI Cryptanalysis  FEAL - Differential Cryptanalysis en 1 May 2026 at 10:30
NeonWatcher Cryptanalysis  FEAL - Differential Cryptanalysis en 1 May 2026 at 10:23
Qui637nn Cryptanalysis  FEAL - Differential Cryptanalysis en 1 May 2026 at 10:23
kernyak Cryptanalysis  FEAL - Differential Cryptanalysis en 1 May 2026 at 10:23
NullThinker Cryptanalysis  FEAL - Differential Cryptanalysis en 1 May 2026 at 10:22
bat8095 Cryptanalysis  FEAL - Differential Cryptanalysis en 1 May 2026 at 10:22
aiSloopy Cryptanalysis  FEAL - Differential Cryptanalysis en 1 May 2026 at 10:22

challenges 75 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution Date
pas_valide Encoding - ASCII 25% 98484 5 Xartrick 10 4 December 2012
pas_valide Encoding - UU 20% 75417 5 g0uZ 10 7 October 2006
pas_valide Hash - DCC 3% 10377 5 Podalirius 1 13 July 2021
pas_valide Hash - DCC2 3% 9443 5 Podalirius 1 13 July 2021
pas_valide Hash - LM 3% 9894 5 Podalirius 2 13 July 2021
pas_valide Hash - Message Digest 5 17% 64889 5 g0uZ 7 31 January 2010
pas_valide Hash - NT 3% 8065 5 Podalirius 2 13 July 2021
pas_valide Hash - SHA-2 9% 34407 5 koma 4 3 June 2012
pas_valide Shift cipher 6% 22490 10 m31z0nyx 10 16 February 2011
pas_valide CISCO - Salted Password 2% 6557 10 Tidusrose 3 13 July 2021
pas_valide Pixel Madness 5% 17355 15 Ryscrow 10 3 February 2011
pas_valide ELF64 - PID encryption 3% 8655 15 Lu33Y 10 8 February 2012
pas_valide File - PKZIP 4% 14323 15 g0uZ 6 30 August 2010
pas_valide Monoalphabetic substitution - Caesar 5% 18279 15 Arod 5 22 October 2011
pas_valide Circular Bit Shift 1% 2304 20 BlackRaven 3 21 March 2023
pas_valide Known plaintext - XOR 3% 10092 20 Ryscrow 5 3 February 2011
pas_valide Code - Pseudo Random Number Generator 2% 4115 20 Tosh 6 19 December 2012
pas_valide Encoding - Codebook 1% 641 20 n3rada 1 21 March 2023
pas_valide File - PKZIP 2 1% 625 20 kevin.mille 2 8 November 2024
pas_valide File - Insecure storage 1 3% 9841 20 g0uZ 7 6 February 2012
pas_valide Polyalphabetic substitution - Vigenère 3% 11213 20 Arod 3 26 October 2011
pas_valide System - Android lock pattern 2% 7398 20 Silentd 5 23 December 2012
pas_valide Transposition - Rail Fence 2% 7005 20 YellowS4 4 6 April 2014
pas_valide AES - CBC - Bit-Flipping Attack 1% 1831 25 Tie21 5 17 June 2018
pas_valide AES - ECB 1% 3001 25 cez40 4 29 November 2015
pas_valide AES - ECB - Copy Paste 1% 507 25 Vozec 1 5 February 2024
pas_valide DSA - Implementation error 1% 233 25 Vozec 1 13 December 2024
pas_valide LFSR - Known plaintext 1% 1302 25 Brissouille 2 28 November 2017
pas_valide RSA - Factorisation 2% 5573 25 HacKSpider 5 12 September 2010
pas_valide RSA - Decipher Oracle 1% 2297 25 Zweisamkeit 4 11 May 2017
pas_valide Service - Timing attack 1% 3095 25 g0uZ , koma 5 28 October 2012
pas_valide Monoalphabetic substitution - Polybe 2% 4215 25 koma 6 6 December 2011
pas_valide Twisted secret 1% 662 25 NonStandardModel 2 14 August 2020
pas_valide Initialisation Vector 1% 2485 25 manticore , notfound404 6 25 August 2015
pas_valide Hill Cipher 1% 386 30 LetMeR00t 1 21 March 2023
pas_valide GEDEFU 1% 654 30 makhno 1 13 September 2016
pas_valide OTP - Implementation error 1% 613 30 Podalirius 3 22 March 2021
pas_valide RSA - Corrupted key 1 1% 552 30 blackndoor 2 28 November 2017
pas_valide RSA - Continued fractions 1% 1709 30 sambecks 1 8 September 2015
pas_valide RSA - Common modulus 1% 2271 30 franb 3 24 December 2016
pas_valide Service - Hash length extension attack 1% 1296 30 koma 1 19 August 2015
pas_valide Shamir Secret Sharing - Introduction 1% 501 30 Vozec 2 5 February 2024
pas_valide AES - 4 Rounds 1% 452 35 Cryptanalyse 0 5 September 2018
pas_valide ECDSA - Introduction 1% 436 35 Jrmbt 2 22 September 2019
pas_valide ElGamal - Fault attack (Introduction) 1% 124 35 Vozec 0 13 December 2024
pas_valide RSA - Padding 1% 365 35 Tosh 0 9 October 2016
pas_valide RSA - Signature 1% 292 35 sar 1 9 March 2020
pas_valide Shamir Secret Sharing - Traitor 1% 182 35 Vozec 1 5 February 2024
pas_valide AES128 - CTR 1% 860 40 Tosh 2 28 August 2015
pas_valide PHP - mt_rand 1% 228 40 NonStandardModel 0 28 March 2022
pas_valide Discrete logarithm problem 1% 1475 40 RFC4949 3 8 June 2014
pas_valide RSA - Corrupted key 2 1% 391 40 blackndoor 1 11 January 2018
pas_valide RSA - Corrupted key 3 1% 249 40 blackndoor 0 5 September 2019
pas_valide RSA - Multiple recipients 1% 1803 40 franb 4 29 November 2015
pas_valide AES - Fault attack #1 1% 268 50 Cryptanalyse 1 20 September 2018
pas_valide FEAL - Differential Cryptanalysis 1% 90 50 Tosh 1 28 March 2022
pas_valide Goldreich Goldwasser Halevi | Weak Parameter 1% 80 50 Vozec 0 13 December 2024
pas_valide Enigma Machine 1% 310 50 peyman 2 12 October 2016
pas_valide Side Channel - AES : CPA 1% 162 50 cb34 0 28 March 2022
pas_valide ECDHE 1% 309 60 Tosh 2 20 November 2016
pas_valide NTRU | Multiple Transmission 1% 79 60 Vozec 0 13 December 2024
pas_valide NTRU | Weak Parameter 1% 73 60 Vozec 0 13 December 2024
pas_valide RSA - H-rabin 1% 144 60 Vozec 0 21 March 2023
pas_valide RSA - Lee cooper 1% 219 60 blackndoor , Synacktiv 1 7 November 2019
pas_valide Service - CBC Padding 1% 1494 60 koma 2 4 October 2012
pas_valide Side Channel - AES : first round 1% 177 60 walafc0 0 28 March 2022
pas_valide Polyalphabetic substitution - One Time Pad 1% 458 60 Thanat0s 0 2 June 2013
pas_valide White-Box Cryptography 1% 340 60 Cryptanalyse 3 21 October 2018
pas_valide AES - Weaker variant 1% 219 70 Cryptanalyse 1 29 August 2018
pas_valide Shamir Secret Sharing - Reduction 1% 131 70 Vozec 0 5 February 2024
pas_valide Hash - SHA-3 1% 260 75 Revenger 1 10 December 2016
pas_valide AES - Fault attack #2 1% 184 80 Cryptanalyse 1 20 September 2018
pas_valide Shamir Secret Sharing - Irreducible ? 1% 97 90 Mr7F 1 5 February 2024
pas_valide AES-PMAC 1% 73 100 Cryptanalyse 0 26 May 2019
pas_valide ECDSA - Implementation error 1% 108 100 Tosh 0 29 September 2019