RSA - Multiple recipients

40 Points  0x0

Chinese!

Author

franb,  

Level  Difficulty

Validations

686 Challengers 1%

Note  Notation

55 Votes

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Challenge Results Challenge Results

Pseudo Challenge Lang date
Biswajeet Kar   RSA - Multiple recipients 17 February 2020 at 17:39
Alex   RSA - Multiple recipients 14 February 2020 at 11:15
Pororo   RSA - Multiple recipients 13 February 2020 at 19:29
pierre.griveaux   RSA - Multiple recipients 13 February 2020 at 14:36
wechhu   RSA - Multiple recipients 13 February 2020 at 08:48
Elloulou   RSA - Multiples destinataires 10 February 2020 at 19:52
thierryb   RSA - Multiples destinataires 5 February 2020 at 01:44
T0t@4   RSA - Multiples destinataires 2 February 2020 at 15:41
so3   RSA - Multiple recipients 1 February 2020 at 19:44
Shynhing   RSA - Multiples destinataires 30 January 2020 at 19:41

 48 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution
pas_valide Encoding - ASCII 26% 43464 5 Xartrick 10
pas_valide Encoding - UU 21% 34303 5 g0uZ 10
pas_valide Hash - Message Digest 5 21% 34915 5 g0uZ 6
pas_valide Hash - SHA-2 11% 17634 5 koma 4
pas_valide Shift cipher 7% 10598 10 m31z0nyx 6
pas_valide Pixel Madness 5% 8459 15 Ryscrow 10
pas_valide ELF64 - PID encryption 3% 4742 15 Lu33Y 10
pas_valide File - PKZIP 4% 6300 15 g0uZ 6
pas_valide Monoalphabetic substitution - Caesar 5% 8050 15 Arod 4
pas_valide Known plaintext - XOR 3% 4982 20 Ryscrow 5
pas_valide Code - Pseudo Random Number Generator 2% 1868 20 Tosh 5
pas_valide File - Insecure storage 1 4% 5325 20 g0uZ 5
pas_valide Polyalphabetic substitution - Vigenère 4% 5443 20 Arod 3
pas_valide System - Android lock pattern 3% 3499 20 Silentd 4
pas_valide Transposition - Rail Fence 2% 3328 20 YellowS4 3
pas_valide AES - CBC - Bit-Flipping Attack 1% 441 25 Tie21 1
pas_valide AES - ECB 1% 1397 25 cez40 4
pas_valide LFSR - Known plaintext 1% 343 25 Brissouille 1
pas_valide RSA - Factorisation 2% 2302 25 HacKSpider 5
pas_valide RSA - Decipher Oracle 1% 675 25 Zweisamkeit 3
pas_valide Service - Timing attack 1% 1571 25 g0uZ, koma 3
pas_valide Monoalphabetic substitution - Polybe 2% 1878 25 koma 6
pas_valide Initialisation Vector 1% 1028 25 manticore, notfound404 5
pas_valide GEDEFU 1% 327 30 makhno 1
pas_valide RSA - Corrupted key 1 1% 162 30 blackndoor 2
pas_valide RSA - Continued fractions 1% 780 30 sambecks 1
pas_valide RSA - Common modulus 1% 779 30 franb 2
pas_valide Service - Hash length extension attack 1% 484 30 koma 1
pas_valide AES - 4 Rounds 1% 121 35 Cryptanalyse 0
pas_valide ECDSA - Introduction 1% 84 35 Jrmbt 0
pas_valide RSA - Padding 1% 146 35 Tosh 0
pas_valide AES128 - CTR 1% 420 40 Tosh 1
pas_valide Discrete logarithm problem 1% 566 40 Thanat0s, RFC4949 3
pas_valide RSA - Corrupted key 2 1% 113 40 blackndoor 0
pas_valide RSA - Corrupted key 3 1% 55 40 blackndoor 0
pas_valide RSA - Multiple recipients 1% 686 40 franb 3
pas_valide AES - Fault attack #1 1% 67 50 Cryptanalyse 1
pas_valide Enigma Machine 1% 118 50 peyman 1
pas_valide ECDHE 1% 126 60 Tosh 2
pas_valide RSA - Lee cooper 1% 39 60 blackndoor, Synacktiv 0
pas_valide Service - CBC Padding 1% 703 60 koma 1
pas_valide Polyalphabetic substitution - One Time Pad 1% 271 60 Thanat0s 0
pas_valide White-Box Cryptography 1% 91 60 Cryptanalyse 3
pas_valide AES - Weaker variant 1% 42 70 Cryptanalyse 1
pas_valide Hash - SHA-3 1% 62 75 Revenger 1
pas_valide AES - Fault attack #2 1% 47 80 Cryptanalyse 1
pas_valide AES-PMAC 1% 9 100 Cryptanalyse 0
pas_valide ECDSA - Implementation error 1% 16 100 Tosh 0