Hash - SHA-2

5 Points  

Author

koma,  

Level  Difficulty

Validations

15679 Challengers 11%

Note  Notation

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764 Votes
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Solution 4 Solutions

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Challenge Results Challenge Results

Pseudo Challenge Lang date
yanm   Hash - SHA-2 en 19 October 2019 at 19:15
Rand0m   Hash - SHA-2 en 19 October 2019 at 18:05
tmarly   Hash - SHA-2 fr 19 October 2019 at 16:28
fossyl   Hash - SHA-2 fr 19 October 2019 at 12:14
Iris   Hash - SHA-2 fr 19 October 2019 at 11:55
fanlug   Hash - SHA-2 en 19 October 2019 at 10:12
iBragimoff   Hash - SHA-2 en 19 October 2019 at 10:01
hrocks   Hash - SHA-2 en 19 October 2019 at 07:42
flux   Hash - SHA-2 de 19 October 2019 at 03:01
spider_ys   Hash - SHA-2 en 18 October 2019 at 21:56

Challenges associated with this section 47 Challenges

Results Challenge's Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution
pas_valide Encoding - ASCII 26% 38814 5 Xartrick 10
pas_valide Encoding - UU 20% 30739 5 g0uZ 10
pas_valide Hash - Message Digest 5 21% 31470 5 g0uZ 6
pas_valide Hash - SHA-2 11% 15686 5 koma 4
pas_valide Shift cipher 7% 9345 10 m31z0nyx 5
pas_valide Pixel Madness 5% 7520 15 Ryscrow 10
pas_valide ELF64 - PID encryption 3% 4283 15 Lu33Y 10
pas_valide File - PKZIP 4% 5528 15 g0uZ 5
pas_valide Monoalphabetic substitution - Caesar 5% 7195 15 Arod 4
pas_valide Known plaintext - XOR 3% 4484 20 Ryscrow 4
pas_valide Code - Pseudo Random Number Generator 2% 1692 20 Tosh 5
pas_valide File - Insecure storage 1 4% 4923 20 g0uZ 5
pas_valide Polyalphabetic substitution - Vigenère 4% 4868 20 Arod 3
pas_valide System - Android lock pattern 3% 3123 20 Silentd 3
pas_valide Transposition - Rail Fence 2% 2947 20 YellowS4 2
pas_valide AES - CBC - Bit-Flipping Attack 1% 334 25 Tie21 1
pas_valide AES - ECB 1% 1241 25 cez40 4
pas_valide LFSR - Known plaintext 1% 253 25 Brissouille 1
pas_valide RSA - Factorisation 2% 2041 25 HacKSpider 4
pas_valide RSA - Decipher Oracle 1% 563 25 Zweisamkeit 3
pas_valide Service - Timing attack 1% 1475 25 g0uZ, koma 3
pas_valide Monoalphabetic substitution - Polybe 2% 1692 25 koma 6
pas_valide Initialisation Vector 1% 920 25 manticore, notfound 3
pas_valide GEDEFU 1% 297 30 makhno 1
pas_valide RSA - Corrupted key 1 1% 132 30 blackndoor 2
pas_valide RSA - Continued fractions 1% 701 30 sambecks 1
pas_valide RSA - Common modulus 1% 658 30 franb 2
pas_valide Service - Hash length extension attack 1% 433 30 koma 1
pas_valide AES - 4 Rounds 1% 99 35 Cryptanalyse 0
pas_valide ECDSA - Introduction 1% 38 35 Jrmbt 0
pas_valide RSA - Padding 1% 128 35 Tosh 0
pas_valide AES128 - CTR 1% 385 40 Tosh 1
pas_valide Discrete logarithm problem 1% 508 40 Thanat0s, RFC4949 3
pas_valide RSA - Corrupted key 2 1% 96 40 blackndoor 0
pas_valide RSA - Corrupted key 3 1% 33 40 blackndoor 0
pas_valide RSA - Multiple recipients 1% 589 40 franb 3
pas_valide AES - Fault attack #1 1% 50 50 Cryptanalyse 1
pas_valide Enigma Machine 1% 109 50 peyman 1
pas_valide ECDHE 1% 115 60 Tosh 2
pas_valide Service - CBC Padding 1% 627 60 koma 1
pas_valide Polyalphabetic substitution - One Time Pad 1% 263 60 Thanat0s 0
pas_valide White-Box Cryptography 1% 87 60 Cryptanalyse 2
pas_valide AES - Weaker variant 1% 36 70 Cryptanalyse 0
pas_valide Hash - SHA-3 1% 60 75 Revenger 1
pas_valide AES - Fault attack #2 1% 34 80 Cryptanalyse 0
pas_valide AES-PMAC 1% 8 100 Cryptanalyse 0
pas_valide ECDSA - Implementation error 1% 9 100 Tosh 0