Service - Hash length extension attack

30 Punkte  0x0

H(key ∥ message)

Autor

koma,  

Stufe  Schwierigkeitsgrad

Validierung

450 Herausforderer 1%

Bewertung  Bewertung

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41 votes

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  Musterlösung

Eine Musterlösung vorschlagen

Ergebnisse der Übungen Ergebnisse der Übungen

Nickname Übungen Sprache date
4.4BSD   Service - Hash length extension attack 1. Dezember 2019 zu  17:43
pouet   Service - Hash length extension attack 28. November 2019 zu  14:44
Octopute   Service - Hash length extension attack 26. November 2019 zu  01:43
Pynut   Service - Hash length extension attack 26. November 2019 zu  01:17
Draggonair   Service - Hash length extension attack 22. November 2019 zu  23:30
v.martyanov   Service - Hash length extension attack 21. November 2019 zu  21:03
eawhitehat   Service - Hash length extension attack 20. November 2019 zu  02:11
diedi   Service - Hash length extension attack 17. November 2019 zu  14:25
FdLSifu   Service - Hash length extension attack 13. November 2019 zu  18:04
petithomme2005   Service - Hash length extension attack 12. November 2019 zu  20:50

 48 Übungen

Ergebnis Name Validierung Anzahl der Punkte  Erklärung der Punktevergabe Schwierigkeitsgrad  Schwierigkeitsgrad Autor Bewertung  Bewertung Musterlösung
pas_valide Encoding - ASCII 26% 41025 5 Xartrick 1
pas_valide Encoding - UU 21% 32459 5 g0uZ 0
pas_valide Hash - Message Digest 5 21% 33209 5 g0uZ 1
pas_valide Hash - SHA-2 11% 16668 5 koma 1
pas_valide Shift cipher 7% 10005 10 m31z0nyx 0
pas_valide Pixel Madness 5% 7990 15 Ryscrow 0
pas_valide ELF64 - PID encryption 3% 4506 15 Lu33Y 1
pas_valide File - PKZIP 4% 5907 15 g0uZ 0
pas_valide Monoalphabetic substitution - Caesar 5% 7590 15 Arod 0
pas_valide Known plaintext - XOR 3% 4702 20 Ryscrow 0
pas_valide Code - Pseudo Random Number Generator 2% 1766 20 Tosh 0
pas_valide File - Insecure storage 1 4% 5111 20 g0uZ 0
pas_valide Polyalphabetic substitution - Vigenère 4% 5125 20 Arod 0
pas_valide System - Android lock pattern 3% 3291 20 Silentd 0
pas_valide Transposition - Rail Fence 2% 3109 20 YellowS4 0
pas_valide AES - CBC - Bit-Flipping Attack 1% 373 25 Tie21 0
pas_valide AES - ECB 1% 1308 25 cez40 0
pas_valide LFSR - Known plaintext 1% 278 25 Brissouille 0
pas_valide RSA - Factorisation 2% 2150 25 HacKSpider 0
pas_valide RSA - Decipher Oracle 1% 606 25 Zweisamkeit 0
pas_valide Service - Timing attack 1% 1515 25 g0uZ, koma 1
pas_valide Monoalphabetic substitution - Polybe 2% 1761 25 koma 0
pas_valide Initialisation Vector 1% 966 25 manticore, notfound404 0
pas_valide GEDEFU 1% 309 30 makhno 0
pas_valide RSA - Corrupted key 1 1% 145 30 blackndoor 0
pas_valide RSA - Continued fractions 1% 734 30 sambecks 0
pas_valide RSA - Common modulus 1% 699 30 franb 0
pas_valide Service - Hash length extension attack 1% 450 30 koma 0
pas_valide AES - 4 Rounds 1% 110 35 Cryptanalyse 0
pas_valide ECDSA - Introduction 1% 70 35 Jrmbt 0
pas_valide RSA - Padding 1% 138 35 Tosh 0
pas_valide AES128 - CTR 1% 400 40 Tosh 0
pas_valide Discrete logarithm problem 1% 537 40 Thanat0s, RFC4949 0
pas_valide RSA - Corrupted key 2 1% 101 40 blackndoor 0
pas_valide RSA - Corrupted key 3 1% 42 40 blackndoor 0
pas_valide RSA - Multiple recipients 1% 624 40 franb 0
pas_valide AES - Fault attack #1 1% 54 50 Cryptanalyse 0
pas_valide Enigma Machine 1% 110 50 peyman 0
pas_valide ECDHE 1% 121 60 Tosh 0
pas_valide RSA - Lee cooper 1% 26 60 blackndoor, Synacktiv 0
pas_valide Service - CBC Padding 1% 654 60 koma 0
pas_valide Polyalphabetic substitution - One Time Pad 1% 265 60 Thanat0s 0
pas_valide White-Box Cryptography 1% 90 60 Cryptanalyse 0
pas_valide AES - Weaker variant 1% 37 70 Cryptanalyse 0
pas_valide Hash - SHA-3 1% 61 75 Revenger 0
pas_valide AES - Fault attack #2 1% 38 80 Cryptanalyse 0
pas_valide AES-PMAC 1% 9 100 Cryptanalyse 0
pas_valide ECDSA - Implementation error 1% 13 100 Tosh 0