ECDSA - Introduction

35 Points  0x0

Conventional attack on ECDSA

Author

Jrmbt,  

Level  Difficulty

Validations

113 Challengers 1%

Note  Notation

24 Votes

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Challenge Results Challenge Results

Pseudo Challenge Lang date
Quanthor_ic   ECDSA - Introduction 1 July 2020 at 19:33
mp3merlin   ECDSA - Introduction 11 June 2020 at 22:45
Lexsek   ECDSA - Introduction 11 June 2020 at 21:58
BasicGrowth   ECDSA - Introduction 1 June 2020 at 21:22
rene-d   ECDSA - Introduction 31 May 2020 at 23:38
ericl   ECDSA - Introduction 31 May 2020 at 16:05
Seraphfallenangel   ECDSA - Introduction 10 May 2020 at 15:39
MockingHawk   ECDSA - Introduction 6 May 2020 at 22:42
floflos   ECDSA - Introduction 4 May 2020 at 16:55
Landais   ECDSA - Introduction 20 April 2020 at 17:29

 49 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution
pas_valide Encoding - ASCII 26% 47522 5 Xartrick 10
pas_valide Encoding - UU 21% 37431 5 g0uZ 10
pas_valide Hash - Message Digest 5 21% 37928 5 g0uZ 6
pas_valide Hash - SHA-2 11% 19346 5 koma 4
pas_valide Shift cipher 7% 11785 10 m31z0nyx 8
pas_valide Pixel Madness 6% 9299 15 Ryscrow 10
pas_valide ELF64 - PID encryption 3% 5097 15 Lu33Y 10
pas_valide File - PKZIP 4% 6983 15 g0uZ 6
pas_valide Monoalphabetic substitution - Caesar 5% 8921 15 Arod 4
pas_valide Known plaintext - XOR 3% 5370 20 Ryscrow 5
pas_valide Code - Pseudo Random Number Generator 2% 2049 20 Tosh 5
pas_valide File - Insecure storage 1 4% 5689 20 g0uZ 5
pas_valide Polyalphabetic substitution - Vigenère 4% 5988 20 Arod 3
pas_valide System - Android lock pattern 3% 3858 20 Silentd 4
pas_valide Transposition - Rail Fence 2% 3631 20 YellowS4 3
pas_valide AES - CBC - Bit-Flipping Attack 1% 575 25 Tie21 1
pas_valide AES - ECB 1% 1516 25 cez40 4
pas_valide LFSR - Known plaintext 1% 427 25 Brissouille 1
pas_valide RSA - Factorisation 2% 2515 25 HacKSpider 5
pas_valide RSA - Decipher Oracle 1% 806 25 Zweisamkeit 3
pas_valide Service - Timing attack 1% 1711 25 g0uZ, koma 4
pas_valide Monoalphabetic substitution - Polybe 2% 2095 25 koma 6
pas_valide Initialisation Vector 1% 1140 25 manticore, notfound404 5
pas_valide GEDEFU 1% 378 30 makhno 1
pas_valide RSA - Corrupted key 1 1% 194 30 blackndoor 2
pas_valide RSA - Continued fractions 1% 856 30 sambecks 1
pas_valide RSA - Common modulus 1% 882 30 franb 2
pas_valide Service - Hash length extension attack 1% 548 30 koma 1
pas_valide AES - 4 Rounds 1% 141 35 Cryptanalyse 0
pas_valide ECDSA - Introduction 1% 113 35 Jrmbt 1
pas_valide RSA - Padding 1% 160 35 Tosh 0
pas_valide RSA - Signature 1% 55 35 s4r 1
pas_valide AES128 - CTR 1% 446 40 Tosh 1
pas_valide Discrete logarithm problem 1% 612 40 Thanat0s, RFC4949 3
pas_valide RSA - Corrupted key 2 1% 134 40 blackndoor 0
pas_valide RSA - Corrupted key 3 1% 67 40 blackndoor 0
pas_valide RSA - Multiple recipients 1% 759 40 franb 3
pas_valide AES - Fault attack #1 1% 76 50 Cryptanalyse 1
pas_valide Enigma Machine 1% 138 50 peyman 2
pas_valide ECDHE 1% 138 60 Tosh 2
pas_valide RSA - Lee cooper 1% 55 60 blackndoor, Synacktiv 0
pas_valide Service - CBC Padding 1% 765 60 koma 1
pas_valide Polyalphabetic substitution - One Time Pad 1% 280 60 Thanat0s 0
pas_valide White-Box Cryptography 1% 101 60 Cryptanalyse 3
pas_valide AES - Weaker variant 1% 46 70 Cryptanalyse 1
pas_valide Hash - SHA-3 1% 79 75 Revenger 1
pas_valide AES - Fault attack #2 1% 53 80 Cryptanalyse 1
pas_valide AES-PMAC 1% 11 100 Cryptanalyse 0
pas_valide ECDSA - Implementation error 1% 18 100 Tosh 0