Hash - SHA-2

5 Points  

Author

koma,  

Level  Difficulty

Validations

10908 Challengers 12%

Note  Notation

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521 Votes
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Solution 3 Solutions

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Challenge Results Challenge Results

Pseudo Challenge Lang date
Anaïs   Hash - SHA-2 fr 19 September 2018 at 01:11
s0lar1n   Hash - SHA-2 en 18 September 2018 at 21:43
Puririn   Hash - SHA-2 en 18 September 2018 at 17:54
Adren   Hash - SHA-2 en 18 September 2018 at 17:17
Elouan MAILLY   Hash - SHA-2 fr 18 September 2018 at 16:30
coutre   Hash - SHA-2 en 18 September 2018 at 16:16
thomb   Hash - SHA-2 fr 18 September 2018 at 15:02
janen1   Hash - SHA-2 en 18 September 2018 at 12:50
abayturganbayev   Hash - SHA-2 en 18 September 2018 at 11:31
Gulzat   Hash - SHA-2 en 18 September 2018 at 11:30

Challenges associated with this section 40 Challenges

Results Challenge's Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution
pas_valide Encoding - ASCII 28% 25921 5 Xartrick 10
pas_valide Encoding - UU 22% 20786 5 g0uZ 10
pas_valide Hash - Message Digest 5 23% 21506 5 g0uZ 4
pas_valide Hash - SHA-2 12% 10908 5 koma 3
pas_valide Shift cipher 7% 6431 10 m31z0nyx 5
pas_valide Pixel Madness 6% 5191 15 Ryscrow 10
pas_valide ELF32 - PID encryption 4% 3328 15 Lu33Y 10
pas_valide File - PKZIP 5% 3870 15 g0uZ 5
pas_valide Monoalphabetic substitution - Caesar 6% 5200 15 Arod 4
pas_valide Known plaintext - XOR 4% 3305 20 Ryscrow 4
pas_valide Code - Pseudo Random Number Generator 2% 1256 20 Tosh 4
pas_valide File - Insecure storage 1 5% 4060 20 g0uZ 5
pas_valide Polyalphabetic substitution - Vigenère 4% 3574 20 Arod 3
pas_valide System - Android lock pattern 3% 2287 20 Silentd 3
pas_valide Transposition - Rail Fence 3% 2119 20 YellowS4 2
pas_valide AES - CBC - Bit-Flipping Attack 1% 84 25 Tie21 1
pas_valide AES - ECB 1% 944 25 cez40 4
pas_valide LFSR - Known plaintext 1% 117 25 Brissouille 1
pas_valide RSA - Factorisation 2% 1469 25 HacKSpider 4
pas_valide RSA - Decipher Oracle 1% 317 25 Zweisamkeit 2
pas_valide Service - Timing attack 2% 1163 25 g0uZ, koma 3
pas_valide Monoalphabetic substitution - Polybe 2% 1292 25 koma 6
pas_valide Initialisation Vector 1% 663 25 notfound, manticore 3
pas_valide GEDEFU 1% 207 30 makhno 1
pas_valide RSA - Corrupted key V1 1% 68 30 blackndoor 1
pas_valide RSA - Continued fractions 1% 524 30 sambecks 1
pas_valide RSA - Common modulus 1% 411 30 franb 2
pas_valide Service - Hash length extension attack 1% 317 30 koma 1
pas_valide AES - 4 Rounds 1% 22 35 Cryptanalyse 0
pas_valide RSA - Padding 1% 95 35 Tosh 0
pas_valide AES128 - CTR 1% 299 40 Tosh 1
pas_valide Discrete logarithm problem 1% 405 40 Thanat0s, RFC4949 2
pas_valide RSA - Corrupted key V2 1% 51 40 blackndoor 0
pas_valide RSA - Multiple recipients 1% 428 40 franb 3
pas_valide Enigma Machine 1% 73 50 peyman 0
pas_valide ECDHE 1% 80 60 Tosh 2
pas_valide Service - CBC Padding 1% 496 60 koma 0
pas_valide Polyalphabetic substitution - One Time Pad 1% 220 60 Thanat0s 0
pas_valide AES - Weaker variant 1% 6 70 Cryptanalyse 0
pas_valide Hash - SHA-3 1% 38 75 Revenger 1