Hash - SHA-2

5 Points  0x0

Author

koma,  

Level  Difficulty

Validations

20035 Challengers 11%

Note  Notation

1
2
3
4
5
982 Votes

To reach this part of the site please login

 4 Solutions

Display solutions Submit a solution

Challenge Results Challenge Results

Pseudo Challenge Lang date
addx78   Hash - SHA-2 30 September 2020 at 01:51
yann-lev   Hash - SHA-2 29 September 2020 at 23:18
kawthar zarqoun   Hash - SHA-2 29 September 2020 at 22:28
Yuzana Win   Hash - SHA-2 29 September 2020 at 19:14
james   Hash - SHA-2 29 September 2020 at 15:12
Rory   Hash - SHA-2 29 September 2020 at 15:06
Callyan   Hash - SHA-2 29 September 2020 at 13:43
Blakan   Hash - SHA-2 29 September 2020 at 09:26
alex   Hash - SHA-2 29 September 2020 at 06:03
hieuchuoi1999   Hash - SHA-2 29 September 2020 at 04:02

 50 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution
pas_valide Encoding - ASCII 26% 49458 5 Xartrick 10
pas_valide Encoding - UU 21% 38793 5 g0uZ 10
pas_valide Hash - Message Digest 5 21% 39235 5 g0uZ 6
pas_valide Hash - SHA-2 11% 20035 5 koma 4
pas_valide Shift cipher 7% 12224 10 m31z0nyx 8
pas_valide Pixel Madness 5% 9628 15 Ryscrow 10
pas_valide ELF64 - PID encryption 3% 5244 15 Lu33Y 10
pas_valide File - PKZIP 4% 7229 15 g0uZ 6
pas_valide Monoalphabetic substitution - Caesar 5% 9192 15 Arod 4
pas_valide Known plaintext - XOR 3% 5549 20 Ryscrow 5
pas_valide Code - Pseudo Random Number Generator 2% 2125 20 Tosh 5
pas_valide File - Insecure storage 1 4% 5835 20 g0uZ 5
pas_valide Polyalphabetic substitution - Vigenère 4% 6153 20 Arod 3
pas_valide System - Android lock pattern 3% 4007 20 Silentd 4
pas_valide Transposition - Rail Fence 2% 3745 20 YellowS4 3
pas_valide AES - CBC - Bit-Flipping Attack 1% 639 25 Tie21 1
pas_valide AES - ECB 1% 1579 25 cez40 4
pas_valide LFSR - Known plaintext 1% 450 25 Brissouille 1
pas_valide RSA - Factorisation 2% 2600 25 HacKSpider 5
pas_valide RSA - Decipher Oracle 1% 847 25 Zweisamkeit 3
pas_valide Service - Timing attack 1% 1762 25 g0uZ, koma 4
pas_valide Monoalphabetic substitution - Polybe 2% 2178 25 koma 6
pas_valide Twisted secret 1% 53 25 nonstandardmodel 1
pas_valide Initialisation Vector 1% 1190 25 manticore, notfound404 5
pas_valide GEDEFU 1% 394 30 makhno 1
pas_valide RSA - Corrupted key 1 1% 211 30 blackndoor 2
pas_valide RSA - Continued fractions 1% 881 30 sambecks 1
pas_valide RSA - Common modulus 1% 923 30 franb 2
pas_valide Service - Hash length extension attack 1% 578 30 koma 1
pas_valide AES - 4 Rounds 1% 153 35 Cryptanalyse 0
pas_valide ECDSA - Introduction 1% 121 35 Jrmbt 1
pas_valide RSA - Padding 1% 169 35 Tosh 0
pas_valide RSA - Signature 1% 60 35 s4r 1
pas_valide AES128 - CTR 1% 458 40 Tosh 1
pas_valide Discrete logarithm problem 1% 620 40 Thanat0s, RFC4949 3
pas_valide RSA - Corrupted key 2 1% 141 40 blackndoor 0
pas_valide RSA - Corrupted key 3 1% 69 40 blackndoor 0
pas_valide RSA - Multiple recipients 1% 789 40 franb 3
pas_valide AES - Fault attack #1 1% 80 50 Cryptanalyse 1
pas_valide Enigma Machine 1% 143 50 peyman 2
pas_valide ECDHE 1% 143 60 Tosh 2
pas_valide RSA - Lee cooper 1% 61 60 blackndoor, Synacktiv 0
pas_valide Service - CBC Padding 1% 784 60 koma 1
pas_valide Polyalphabetic substitution - One Time Pad 1% 287 60 Thanat0s 0
pas_valide White-Box Cryptography 1% 104 60 Cryptanalyse 3
pas_valide AES - Weaker variant 1% 49 70 Cryptanalyse 1
pas_valide Hash - SHA-3 1% 79 75 Revenger 1
pas_valide AES - Fault attack #2 1% 58 80 Cryptanalyse 1
pas_valide AES-PMAC 1% 11 100 Cryptanalyse 0
pas_valide ECDSA - Implementation error 1% 19 100 Tosh 0