Service - Hash length extension attack

30 Punkte  0x0

H(key ∥ message)

Autor

koma,  

Stufe  Schwierigkeitsgrad

Validierung

592 Herausforderer 1%

Bewertung  Bewertung

52 votes

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  Musterlösung

Ergebnisse der Übungen Ergebnisse der Übungen


 50 Übungen

Ergebnis Name Validierung Anzahl der Punkte  Erklärung der Punktevergabe Schwierigkeitsgrad  Schwierigkeitsgrad Autor Bewertung  Bewertung Musterlösung
pas_valide Encoding - ASCII 26% 50220 5 Xartrick 2
pas_valide Encoding - UU 21% 39428 5 g0uZ 1
pas_valide Hash - Message Digest 5 21% 39814 5 g0uZ 1
pas_valide Hash - SHA-2 11% 20321 5 koma 1
pas_valide Shift cipher 7% 12393 10 m31z0nyx 1
pas_valide Pixel Madness 6% 9771 15 Ryscrow 2
pas_valide ELF64 - PID encryption 3% 5306 15 Lu33Y 1
pas_valide File - PKZIP 4% 7320 15 g0uZ 0
pas_valide Monoalphabetic substitution - Caesar 5% 9315 15 Arod 0
pas_valide Known plaintext - XOR 3% 5599 20 Ryscrow 0
pas_valide Code - Pseudo Random Number Generator 2% 2163 20 Tosh 0
pas_valide File - Insecure storage 1 4% 5888 20 g0uZ 0
pas_valide Polyalphabetic substitution - Vigenère 4% 6235 20 Arod 0
pas_valide System - Android lock pattern 3% 4055 20 Silentd 0
pas_valide Transposition - Rail Fence 2% 3785 20 YellowS4 0
pas_valide AES - CBC - Bit-Flipping Attack 1% 658 25 Tie21 0
pas_valide AES - ECB 1% 1591 25 cez40 0
pas_valide LFSR - Known plaintext 1% 456 25 Brissouille 0
pas_valide RSA - Factorisation 2% 2629 25 HacKSpider 0
pas_valide RSA - Decipher Oracle 1% 870 25 Zweisamkeit 0
pas_valide Service - Timing attack 1% 1777 25 g0uZ, koma 1
pas_valide Monoalphabetic substitution - Polybe 2% 2203 25 koma 0
pas_valide Twisted secret 1% 73 25 nonstandardmodel 0
pas_valide Initialisation Vector 1% 1202 25 manticore, notfound404 0
pas_valide GEDEFU 1% 396 30 makhno 0
pas_valide RSA - Corrupted key 1 1% 214 30 blackndoor 0
pas_valide RSA - Continued fractions 1% 891 30 sambecks 0
pas_valide RSA - Common modulus 1% 938 30 franb 0
pas_valide Service - Hash length extension attack 1% 590 30 koma 0
pas_valide AES - 4 Rounds 1% 154 35 Cryptanalyse 0
pas_valide ECDSA - Introduction 1% 123 35 Jrmbt 0
pas_valide RSA - Padding 1% 171 35 Tosh 0
pas_valide RSA - Signature 1% 60 35 s4r 0
pas_valide AES128 - CTR 1% 461 40 Tosh 0
pas_valide Discrete logarithm problem 1% 627 40 Thanat0s, RFC4949 0
pas_valide RSA - Corrupted key 2 1% 142 40 blackndoor 0
pas_valide RSA - Corrupted key 3 1% 70 40 blackndoor 0
pas_valide RSA - Multiple recipients 1% 802 40 franb 0
pas_valide AES - Fault attack #1 1% 81 50 Cryptanalyse 0
pas_valide Enigma Machine 1% 146 50 peyman 0
pas_valide ECDHE 1% 143 60 Tosh 0
pas_valide RSA - Lee cooper 1% 61 60 blackndoor, Synacktiv 0
pas_valide Service - CBC Padding 1% 792 60 koma 0
pas_valide Polyalphabetic substitution - One Time Pad 1% 292 60 Thanat0s 0
pas_valide White-Box Cryptography 1% 105 60 Cryptanalyse 0
pas_valide AES - Weaker variant 1% 49 70 Cryptanalyse 0
pas_valide Hash - SHA-3 1% 80 75 Revenger 0
pas_valide AES - Fault attack #2 1% 60 80 Cryptanalyse 0
pas_valide AES-PMAC 1% 11 100 Cryptanalyse 0
pas_valide ECDSA - Implementation error 1% 20 100 Tosh 0