Service - Hash length extension attack

30 Punkte  0x0

H(key ∥ message)

Autor

koma,  

Stufe  Schwierigkeitsgrad

Validierung

488 Herausforderer 1%

Bewertung  Bewertung

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45 votes

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  Musterlösung

Eine Musterlösung vorschlagen

Ergebnisse der Übungen Ergebnisse der Übungen

Nickname Übungen Sprache date
Potr Genaoueg   Service - Hash length extension attack 23. Februar 2020 zu  22:14
AziXus   Service - Hash length extension attack 22. Februar 2020 zu  23:18
ts4ch   Service - Hash length extension attack 22. Februar 2020 zu  16:20
THT   Service - Hash length extension attack 19. Februar 2020 zu  16:02
SeaBoy   Service - Hash length extension attack 18. Februar 2020 zu  09:39
Alex   Service - Hash length extension attack 13. Februar 2020 zu  21:09
thierryb   Service - Hash length extension attack 10. Februar 2020 zu  21:20
cyrillec   Service - Hash length extension attack 9. Februar 2020 zu  18:12
xxx   Service - Hash length extension attack 8. Februar 2020 zu  14:01
cloudbytes   Service - Hash length extension attack 7. Februar 2020 zu  10:26

 48 Übungen

Ergebnis Name Validierung Anzahl der Punkte  Erklärung der Punktevergabe Schwierigkeitsgrad  Schwierigkeitsgrad Autor Bewertung  Bewertung Musterlösung
pas_valide Encoding - ASCII 26% 43884 5 Xartrick 2
pas_valide Encoding - UU 21% 34616 5 g0uZ 1
pas_valide Hash - Message Digest 5 21% 35228 5 g0uZ 1
pas_valide Hash - SHA-2 11% 17814 5 koma 1
pas_valide Shift cipher 7% 10726 10 m31z0nyx 0
pas_valide Pixel Madness 5% 8546 15 Ryscrow 1
pas_valide ELF64 - PID encryption 3% 4784 15 Lu33Y 1
pas_valide File - PKZIP 4% 6351 15 g0uZ 0
pas_valide Monoalphabetic substitution - Caesar 5% 8131 15 Arod 0
pas_valide Known plaintext - XOR 3% 5028 20 Ryscrow 0
pas_valide Code - Pseudo Random Number Generator 2% 1892 20 Tosh 0
pas_valide File - Insecure storage 1 4% 5363 20 g0uZ 0
pas_valide Polyalphabetic substitution - Vigenère 4% 5500 20 Arod 0
pas_valide System - Android lock pattern 3% 3539 20 Silentd 0
pas_valide Transposition - Rail Fence 2% 3354 20 YellowS4 0
pas_valide AES - CBC - Bit-Flipping Attack 1% 447 25 Tie21 0
pas_valide AES - ECB 1% 1407 25 cez40 0
pas_valide LFSR - Known plaintext 1% 347 25 Brissouille 0
pas_valide RSA - Factorisation 2% 2317 25 HacKSpider 0
pas_valide RSA - Decipher Oracle 1% 691 25 Zweisamkeit 0
pas_valide Service - Timing attack 1% 1586 25 g0uZ, koma 1
pas_valide Monoalphabetic substitution - Polybe 2% 1904 25 koma 0
pas_valide Initialisation Vector 1% 1045 25 manticore, notfound404 0
pas_valide GEDEFU 1% 332 30 makhno 0
pas_valide RSA - Corrupted key 1 1% 163 30 blackndoor 0
pas_valide RSA - Continued fractions 1% 787 30 sambecks 0
pas_valide RSA - Common modulus 1% 788 30 franb 0
pas_valide Service - Hash length extension attack 1% 488 30 koma 0
pas_valide AES - 4 Rounds 1% 124 35 Cryptanalyse 0
pas_valide ECDSA - Introduction 1% 87 35 Jrmbt 0
pas_valide RSA - Padding 1% 146 35 Tosh 0
pas_valide AES128 - CTR 1% 421 40 Tosh 0
pas_valide Discrete logarithm problem 1% 569 40 Thanat0s, RFC4949 0
pas_valide RSA - Corrupted key 2 1% 115 40 blackndoor 0
pas_valide RSA - Corrupted key 3 1% 56 40 blackndoor 0
pas_valide RSA - Multiple recipients 1% 691 40 franb 0
pas_valide AES - Fault attack #1 1% 67 50 Cryptanalyse 0
pas_valide Enigma Machine 1% 118 50 peyman 0
pas_valide ECDHE 1% 128 60 Tosh 0
pas_valide RSA - Lee cooper 1% 40 60 blackndoor, Synacktiv 0
pas_valide Service - CBC Padding 1% 711 60 koma 0
pas_valide Polyalphabetic substitution - One Time Pad 1% 271 60 Thanat0s 0
pas_valide White-Box Cryptography 1% 92 60 Cryptanalyse 0
pas_valide AES - Weaker variant 1% 42 70 Cryptanalyse 0
pas_valide Hash - SHA-3 1% 63 75 Revenger 0
pas_valide AES - Fault attack #2 1% 48 80 Cryptanalyse 0
pas_valide AES-PMAC 1% 10 100 Cryptanalyse 0
pas_valide ECDSA - Implementation error 1% 16 100 Tosh 0