Service - Hash length extension attack

30 Punkte  0x0

H(Schlüssel ∥ Nachricht)

Autor

koma,  

Stufe  Schwierigkeitsgrad

Validierung

1187 Herausforderer 1%

Bewertung  Bewertung

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78 votes

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solutions 1 Musterlösung

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Ergebnisse der Übungen Ergebnisse der Übungen

Nickname Übungen Sprache date
Adem0 Cryptanalyse  Service - Hash length extension attack fr 6. Juni 2025 zu  17:08
4ck3rm4n Cryptanalysis  Service - Hash length extension attack en 4. Juni 2025 zu  03:28
Graulito Cryptanalyse  Service - Hash length extension attack fr 16. Mai 2025 zu  22:50
AlKodi Cryptanalyse  Service - Hash length extension attack fr 14. Mai 2025 zu  22:55
CometeLotus Cryptanalyse  Service - Hash length extension attack fr 10. Mai 2025 zu  02:18
ap10 Cryptanalyse  Service - Hash length extension attack fr 9. Mai 2025 zu  06:24
Gako Cryptanalyse  Service - Hash length extension attack fr 6. Mai 2025 zu  23:11
Sacre Cryptanalyse  Service - Hash length extension attack fr 1. Mai 2025 zu  15:45
LordAshram Cryptanalyse  Service - Hash length extension attack fr 1. Mai 2025 zu  02:47
Ed. Cryptanalyse  Service - Hash length extension attack fr 30. April 2025 zu  20:02

challenges 75 Premium Übungen

Ergebnis Name Validierung Anzahl der Punkte  Erklärung der Punktevergabe Schwierigkeitsgrad  Schwierigkeitsgrad Autor Bewertung  Bewertung Musterlösung date
pas_valide Encoding - ASCII 26% 92171 5 Xartrick 2 4. Dezember 2012
pas_valide Encoding - UU 20% 70989 5 g0uZ 1 7. Oktober 2006
pas_valide Hash - DCC 3% 8681 5 Podalirius 0 13. Juli 2021
pas_valide Hash - DCC2 3% 7990 5 Podalirius 0 13. Juli 2021
pas_valide Hash - LM 3% 8467 5 Podalirius 0 13. Juli 2021
pas_valide Hash - Message Digest 5 18% 62052 5 g0uZ 1 31. Januar 2010
pas_valide Hash - NT 2% 6837 5 Podalirius 0 13. Juli 2021
pas_valide Hash - SHA-2 9% 32750 5 koma 1 3. Juni 2012
pas_valide Shift cipher 6% 21027 10 m31z0nyx 1 16. Februar 2011
pas_valide CISCO - Salted Password 2% 5500 10 Tidusrose 1 13. Juli 2021
pas_valide Pixel Madness 5% 16324 15 Ryscrow 2 3. Februar 2011
pas_valide ELF64 - PID encryption 3% 8124 15 Lu33Y 2 8. Februar 2012
pas_valide File - PKZIP 4% 13356 15 g0uZ 0 30. August 2010
pas_valide Monoalphabetic substitution - Caesar 5% 16871 15 Arod 0 22. Oktober 2011
pas_valide Circular Bit Shift 1% 1669 20 BlackRaven 0 21. März 2023
pas_valide Known plaintext - XOR 3% 9406 20 Ryscrow 0 3. Februar 2011
pas_valide Code - Pseudo Random Number Generator 2% 3665 20 Tosh 0 19. Dezember 2012
pas_valide Encoding - Codebook 1% 426 20 n3rada 0 21. März 2023
pas_valide File - PKZIP 2 1% 318 20 kevin.mille 0 8. November 2024
pas_valide File - Insecure storage 1 3% 9393 20 g0uZ 0 6. Februar 2012
pas_valide Polyalphabetic substitution - Vigenère 3% 10590 20 Arod 0 26. Oktober 2011
pas_valide System - Android lock pattern 2% 7016 20 Silentd 0 23. Dezember 2012
pas_valide Transposition - Rail Fence 2% 6610 20 YellowS4 0 6. April 2014
pas_valide AES - CBC - Bit-Flipping Attack 1% 1679 25 Tie21 0 17. Juni 2018
pas_valide AES - ECB 1% 2741 25 cez40 0 29. November 2015
pas_valide AES - ECB - Copy Paste 1% 331 25 Vozec 0 5. Februar 2024
pas_valide DSA - Implementation error 1% 24 25 Vozec 0 13. Dezember 2024
pas_valide LFSR - Known plaintext 1% 1074 25 Brissouille 0 28. November 2017
pas_valide RSA - Factorisation 2% 5075 25 HacKSpider 0 12. September 2010
pas_valide RSA - Decipher Oracle 1% 2064 25 Zweisamkeit 0 11. Mai 2017
pas_valide Service - Timing attack 1% 2926 25 g0uZ , koma 1 28. Oktober 2012
pas_valide Monoalphabetic substitution - Polybe 2% 3966 25 koma 0 6. Dezember 2011
pas_valide Twisted secret 1% 507 25 NonStandardModel 0 14. August 2020
pas_valide Initialisation Vector 1% 2275 25 manticore , notfound404 0 25. August 2015
pas_valide Hill Cipher 1% 217 30 LetMeR00t 0 21. März 2023
pas_valide GEDEFU 1% 577 30 makhno 0 13. September 2016
pas_valide OTP - Implementation error 1% 469 30 Podalirius 0 22. März 2021
pas_valide RSA - Corrupted key 1 1% 446 30 blackndoor 0 28. November 2017
pas_valide RSA - Continued fractions 1% 1503 30 sambecks 0 8. September 2015
pas_valide RSA - Common modulus 1% 2053 30 franb 0 24. Dezember 2016
pas_valide Service - Hash length extension attack 1% 1187 30 koma 1 19. August 2015
pas_valide Shamir Secret Sharing - Introduction 1% 342 30 Vozec 0 5. Februar 2024
pas_valide AES - 4 Rounds 1% 362 35 Cryptanalyse 0 5. September 2018
pas_valide ECDSA - Introduction 1% 330 35 Jrmbt 0 22. September 2019
pas_valide ElGamal - Fault attack (Introduction) 1% 19 35 Vozec 0 13. Dezember 2024
pas_valide RSA - Padding 1% 293 35 Tosh 0 9. Oktober 2016
pas_valide RSA - Signature 1% 200 35 sar 0 9. März 2020
pas_valide Shamir Secret Sharing - Traitor 1% 94 35 Vozec 0 5. Februar 2024
pas_valide AES128 - CTR 1% 725 40 Tosh 0 28. August 2015
pas_valide PHP - mt_rand 1% 166 40 NonStandardModel 0 28. März 2022
pas_valide Discrete logarithm problem 1% 1311 40 RFC4949 0 8. Juni 2014
pas_valide RSA - Corrupted key 2 1% 323 40 blackndoor 0 11. Januar 2018
pas_valide RSA - Corrupted key 3 1% 188 40 blackndoor 0 5. September 2019
pas_valide RSA - Multiple recipients 1% 1651 40 franb 0 29. November 2015
pas_valide AES - Fault attack #1 1% 194 50 Cryptanalyse 0 20. September 2018
pas_valide FEAL - Differential Cryptanalysis 1% 48 50 Tosh 0 28. März 2022
pas_valide Goldreich Goldwasser Halevi | Weak Parameter 1% 11 50 Vozec 0 13. Dezember 2024
pas_valide Enigma Machine 1% 266 50 peyman 0 12. Oktober 2016
pas_valide Side Channel - AES : CPA 1% 87 50 cb34 0 28. März 2022
pas_valide ECDHE 1% 245 60 Tosh 0 20. November 2016
pas_valide NTRU | Multiple Transmission 1% 22 60 Vozec 0 13. Dezember 2024
pas_valide NTRU | Weak Parameter 1% 10 60 Vozec 0 13. Dezember 2024
pas_valide RSA - H-rabin 1% 88 60 Vozec 0 21. März 2023
pas_valide RSA - Lee cooper 1% 164 60 blackndoor , Synacktiv 0 7. November 2019
pas_valide Service - CBC Padding 1% 1373 60 koma 0 4. Oktober 2012
pas_valide Side Channel - AES : first round 1% 88 60 walafc0 0 28. März 2022
pas_valide Polyalphabetic substitution - One Time Pad 1% 382 60 Thanat0s 0 2. Juni 2013
pas_valide White-Box Cryptography 1% 248 60 Cryptanalyse 0 21. Oktober 2018
pas_valide AES - Weaker variant 1% 147 70 Cryptanalyse 0 29. August 2018
pas_valide Shamir Secret Sharing - Reduction 1% 48 70 Vozec 0 5. Februar 2024
pas_valide Hash - SHA-3 1% 162 75 Revenger 0 10. Dezember 2016
pas_valide AES - Fault attack #2 1% 140 80 Cryptanalyse 0 20. September 2018
pas_valide Shamir Secret Sharing - Irreducible ? 1% 31 90 Mister7F 0 5. Februar 2024
pas_valide AES-PMAC 1% 39 100 Cryptanalyse 0 26. Mai 2019
pas_valide ECDSA - Implementation error 1% 66 100 Tosh 0 29. September 2019