ECDSA - Implementation error

100 Points  0x0

It’s random...

Author

Tosh,  

Level  Difficulty

Validations

16 Challengers 1%

Note  Notation

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5
15 Votes

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Challenge Results Challenge Results

Pseudo Challenge Lang date
macz   ECDSA - Implementation error 15 February 2020 at 22:04
kasia-tutej   ECDSA - Implementation error 28 January 2020 at 19:32
pedroysb   ECDSA - Implementation error 14 January 2020 at 01:45
Lefnui   ECDSA - Implementation error 25 November 2019 at 17:51
Tosh   ECDSA - Erreur d’implémentation 1 November 2019 at 12:53
Kurt   ECDSA - Implementation error 26 October 2019 at 22:23
H4cK0pp   ECDSA - Erreur d’implémentation 21 October 2019 at 16:06
ocalex86   ECDSA - Implementation error 18 October 2019 at 10:53
Th3_JagDt1g3R   ECDSA - Implementation error 6 October 2019 at 23:58
rogdham   ECDSA - Erreur d’implémentation 6 October 2019 at 15:58

 49 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution
pas_valide Encoding - ASCII 26% 44986 5 Xartrick 10
pas_valide Encoding - UU 21% 35524 5 g0uZ 10
pas_valide Hash - Message Digest 5 21% 36108 5 g0uZ 6
pas_valide Hash - SHA-2 11% 18280 5 koma 4
pas_valide Shift cipher 7% 11102 10 m31z0nyx 7
pas_valide Pixel Madness 5% 8802 15 Ryscrow 10
pas_valide ELF64 - PID encryption 3% 4899 15 Lu33Y 10
pas_valide File - PKZIP 4% 6573 15 g0uZ 6
pas_valide Monoalphabetic substitution - Caesar 5% 8370 15 Arod 4
pas_valide Known plaintext - XOR 3% 5146 20 Ryscrow 5
pas_valide Code - Pseudo Random Number Generator 2% 1948 20 Tosh 5
pas_valide File - Insecure storage 1 4% 5487 20 g0uZ 5
pas_valide Polyalphabetic substitution - Vigenère 4% 5678 20 Arod 3
pas_valide System - Android lock pattern 3% 3639 20 Silentd 4
pas_valide Transposition - Rail Fence 2% 3449 20 YellowS4 3
pas_valide AES - CBC - Bit-Flipping Attack 1% 494 25 Tie21 1
pas_valide AES - ECB 1% 1453 25 cez40 4
pas_valide LFSR - Known plaintext 1% 372 25 Brissouille 1
pas_valide RSA - Factorisation 2% 2386 25 HacKSpider 5
pas_valide RSA - Decipher Oracle 1% 728 25 Zweisamkeit 3
pas_valide Service - Timing attack 1% 1621 25 g0uZ, koma 3
pas_valide Monoalphabetic substitution - Polybe 2% 1967 25 koma 6
pas_valide Initialisation Vector 1% 1077 25 manticore, notfound404 5
pas_valide GEDEFU 1% 344 30 makhno 1
pas_valide RSA - Corrupted key 1 1% 170 30 blackndoor 2
pas_valide RSA - Continued fractions 1% 812 30 sambecks 1
pas_valide RSA - Common modulus 1% 825 30 franb 2
pas_valide Service - Hash length extension attack 1% 507 30 koma 1
pas_valide AES - 4 Rounds 1% 127 35 Cryptanalyse 0
pas_valide ECDSA - Introduction 1% 100 35 Jrmbt 1
pas_valide RSA - Padding 1% 152 35 Tosh 0
pas_valide RSA - Signature 1% 34 35 stan1slas 0
pas_valide AES128 - CTR 1% 424 40 Tosh 1
pas_valide Discrete logarithm problem 1% 575 40 Thanat0s, RFC4949 3
pas_valide RSA - Corrupted key 2 1% 117 40 blackndoor 0
pas_valide RSA - Corrupted key 3 1% 58 40 blackndoor 0
pas_valide RSA - Multiple recipients 1% 715 40 franb 3
pas_valide AES - Fault attack #1 1% 70 50 Cryptanalyse 1
pas_valide Enigma Machine 1% 120 50 peyman 1
pas_valide ECDHE 1% 130 60 Tosh 2
pas_valide RSA - Lee cooper 1% 44 60 blackndoor, Synacktiv 0
pas_valide Service - CBC Padding 1% 733 60 koma 1
pas_valide Polyalphabetic substitution - One Time Pad 1% 273 60 Thanat0s 0
pas_valide White-Box Cryptography 1% 93 60 Cryptanalyse 3
pas_valide AES - Weaker variant 1% 43 70 Cryptanalyse 1
pas_valide Hash - SHA-3 1% 73 75 Revenger 1
pas_valide AES - Fault attack #2 1% 49 80 Cryptanalyse 1
pas_valide AES-PMAC 1% 11 100 Cryptanalyse 0
pas_valide ECDSA - Implementation error 1% 16 100 Tosh 0