RSA - Common modulus

30 Points  0x0

Arithmetic Power

Author

franb,  

Level  Difficulty

Validations

867 Challengers 1%

Note  Notation

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52 Votes

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 2 Solutions

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Challenge Results Challenge Results

Pseudo Challenge Lang date
idrix27   RSA - Modules communs 31 May 2020 at 13:10
orchas   RSA - Modules communs 29 May 2020 at 16:03
Tadlos-Nayr   RSA - Modules communs 29 May 2020 at 13:02
nqnt   RSA - Modules communs 27 May 2020 at 22:06
Solden   RSA - Modules communs 26 May 2020 at 12:58
ElTouco72   RSA - Modules communs 23 May 2020 at 19:11
Lumy   RSA - Common modulus 23 May 2020 at 12:18
Peter_Pan   RSA - Modules communs 20 May 2020 at 15:08
mikcael   RSA - Common modulus 18 May 2020 at 17:33
alfred   RSA - Modules communs 17 May 2020 at 01:57

 49 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution
pas_valide Encoding - ASCII 26% 46603 5 Xartrick 10
pas_valide Encoding - UU 21% 36774 5 g0uZ 10
pas_valide Hash - Message Digest 5 21% 37306 5 g0uZ 6
pas_valide Hash - SHA-2 11% 19028 5 koma 4
pas_valide Shift cipher 7% 11593 10 m31z0nyx 8
pas_valide Pixel Madness 6% 9150 15 Ryscrow 10
pas_valide ELF64 - PID encryption 3% 5043 15 Lu33Y 10
pas_valide File - PKZIP 4% 6868 15 g0uZ 6
pas_valide Monoalphabetic substitution - Caesar 5% 8761 15 Arod 4
pas_valide Known plaintext - XOR 3% 5304 20 Ryscrow 5
pas_valide Code - Pseudo Random Number Generator 2% 2025 20 Tosh 5
pas_valide File - Insecure storage 1 4% 5633 20 g0uZ 5
pas_valide Polyalphabetic substitution - Vigenère 4% 5904 20 Arod 3
pas_valide System - Android lock pattern 3% 3801 20 Silentd 4
pas_valide Transposition - Rail Fence 2% 3581 20 YellowS4 3
pas_valide AES - CBC - Bit-Flipping Attack 1% 551 25 Tie21 1
pas_valide AES - ECB 1% 1498 25 cez40 4
pas_valide LFSR - Known plaintext 1% 407 25 Brissouille 1
pas_valide RSA - Factorisation 2% 2480 25 HacKSpider 5
pas_valide RSA - Decipher Oracle 1% 780 25 Zweisamkeit 3
pas_valide Service - Timing attack 1% 1688 25 g0uZ, koma 4
pas_valide Monoalphabetic substitution - Polybe 2% 2061 25 koma 6
pas_valide Initialisation Vector 1% 1121 25 manticore, notfound404 5
pas_valide GEDEFU 1% 368 30 makhno 1
pas_valide RSA - Corrupted key 1 1% 187 30 blackndoor 2
pas_valide RSA - Continued fractions 1% 846 30 sambecks 1
pas_valide RSA - Common modulus 1% 867 30 franb 2
pas_valide Service - Hash length extension attack 1% 539 30 koma 1
pas_valide AES - 4 Rounds 1% 138 35 Cryptanalyse 0
pas_valide ECDSA - Introduction 1% 109 35 Jrmbt 1
pas_valide RSA - Padding 1% 157 35 Tosh 0
pas_valide RSA - Signature 1% 49 35 s4r 0
pas_valide AES128 - CTR 1% 442 40 Tosh 1
pas_valide Discrete logarithm problem 1% 603 40 Thanat0s, RFC4949 3
pas_valide RSA - Corrupted key 2 1% 130 40 blackndoor 0
pas_valide RSA - Corrupted key 3 1% 64 40 blackndoor 0
pas_valide RSA - Multiple recipients 1% 747 40 franb 3
pas_valide AES - Fault attack #1 1% 74 50 Cryptanalyse 1
pas_valide Enigma Machine 1% 128 50 peyman 1
pas_valide ECDHE 1% 136 60 Tosh 2
pas_valide RSA - Lee cooper 1% 51 60 blackndoor, Synacktiv 0
pas_valide Service - CBC Padding 1% 757 60 koma 1
pas_valide Polyalphabetic substitution - One Time Pad 1% 278 60 Thanat0s 0
pas_valide White-Box Cryptography 1% 99 60 Cryptanalyse 3
pas_valide AES - Weaker variant 1% 44 70 Cryptanalyse 1
pas_valide Hash - SHA-3 1% 74 75 Revenger 1
pas_valide AES - Fault attack #2 1% 52 80 Cryptanalyse 1
pas_valide AES-PMAC 1% 11 100 Cryptanalyse 0
pas_valide ECDSA - Implementation error 1% 18 100 Tosh 0