Service - CBC Padding

60 Points  0x0

Don’t go too fast

Author

koma,  

Level  Difficulty

Validations

702 Challengers 1%

Note  Notation

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5
70 Votes

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 1 Solution

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Challenge Results Challenge Results

Pseudo Challenge Lang date
spoiamzl   Service - CBC Padding 15 February 2020 at 22:27
kilroy   Service - CBC Padding 12 February 2020 at 17:08
Potr Genaoueg   Service - CBC Padding 12 February 2020 at 13:13
nivram   Service - CBC Padding 9 February 2020 at 22:50
client9784   Service - CBC Padding 9 February 2020 at 17:13
Akira   Service - CBC Padding 7 February 2020 at 22:45
SIGABRT   Service - CBC Padding 5 February 2020 at 22:41
so3   Service - CBC Padding 3 February 2020 at 18:18
vpkc   Service - CBC Padding 1 February 2020 at 12:03
Ghira   Service - CBC Padding 31 January 2020 at 22:14

 48 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution
pas_valide Encoding - ASCII 26% 43436 5 Xartrick 10
pas_valide Encoding - UU 21% 34280 5 g0uZ 10
pas_valide Hash - Message Digest 5 21% 34894 5 g0uZ 6
pas_valide Hash - SHA-2 11% 17621 5 koma 4
pas_valide Shift cipher 7% 10595 10 m31z0nyx 6
pas_valide Pixel Madness 5% 8455 15 Ryscrow 10
pas_valide ELF64 - PID encryption 3% 4740 15 Lu33Y 10
pas_valide File - PKZIP 4% 6294 15 g0uZ 6
pas_valide Monoalphabetic substitution - Caesar 5% 8039 15 Arod 4
pas_valide Known plaintext - XOR 3% 4977 20 Ryscrow 5
pas_valide Code - Pseudo Random Number Generator 2% 1868 20 Tosh 5
pas_valide File - Insecure storage 1 4% 5320 20 g0uZ 5
pas_valide Polyalphabetic substitution - Vigenère 4% 5435 20 Arod 3
pas_valide System - Android lock pattern 3% 3494 20 Silentd 4
pas_valide Transposition - Rail Fence 2% 3327 20 YellowS4 3
pas_valide AES - CBC - Bit-Flipping Attack 1% 440 25 Tie21 1
pas_valide AES - ECB 1% 1395 25 cez40 4
pas_valide LFSR - Known plaintext 1% 342 25 Brissouille 1
pas_valide RSA - Factorisation 2% 2299 25 HacKSpider 5
pas_valide RSA - Decipher Oracle 1% 675 25 Zweisamkeit 3
pas_valide Service - Timing attack 1% 1571 25 g0uZ, koma 3
pas_valide Monoalphabetic substitution - Polybe 2% 1878 25 koma 6
pas_valide Initialisation Vector 1% 1027 25 manticore, notfound404 5
pas_valide GEDEFU 1% 327 30 makhno 1
pas_valide RSA - Corrupted key 1 1% 162 30 blackndoor 2
pas_valide RSA - Continued fractions 1% 780 30 sambecks 1
pas_valide RSA - Common modulus 1% 778 30 franb 2
pas_valide Service - Hash length extension attack 1% 483 30 koma 1
pas_valide AES - 4 Rounds 1% 121 35 Cryptanalyse 0
pas_valide ECDSA - Introduction 1% 84 35 Jrmbt 0
pas_valide RSA - Padding 1% 146 35 Tosh 0
pas_valide AES128 - CTR 1% 419 40 Tosh 1
pas_valide Discrete logarithm problem 1% 565 40 Thanat0s, RFC4949 3
pas_valide RSA - Corrupted key 2 1% 113 40 blackndoor 0
pas_valide RSA - Corrupted key 3 1% 54 40 blackndoor 0
pas_valide RSA - Multiple recipients 1% 685 40 franb 3
pas_valide AES - Fault attack #1 1% 67 50 Cryptanalyse 1
pas_valide Enigma Machine 1% 118 50 peyman 1
pas_valide ECDHE 1% 125 60 Tosh 2
pas_valide RSA - Lee cooper 1% 39 60 blackndoor, Synacktiv 0
pas_valide Service - CBC Padding 1% 702 60 koma 1
pas_valide Polyalphabetic substitution - One Time Pad 1% 271 60 Thanat0s 0
pas_valide White-Box Cryptography 1% 91 60 Cryptanalyse 3
pas_valide AES - Weaker variant 1% 42 70 Cryptanalyse 1
pas_valide Hash - SHA-3 1% 62 75 Revenger 1
pas_valide AES - Fault attack #2 1% 46 80 Cryptanalyse 1
pas_valide AES-PMAC 1% 9 100 Cryptanalyse 0
pas_valide ECDSA - Implementation error 1% 16 100 Tosh 0