RSA - Continued fractions

30 Points  0x0

Private key

Author

sambecks,  

Level  Difficulty

Validations

769 Challengers 1%

Note  Notation

1
2
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4
5
64 Votes

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 1 Solution

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Challenge Results Challenge Results

Pseudo Challenge Lang date
cairb   RSA - Fractions continues 26 January 2020 at 20:19
jgrec   RSA - Fractions continues 26 January 2020 at 16:53
Matmut7   RSA - Fractions continues 26 January 2020 at 15:02
Sh0000   RSA - Fractions continues 25 January 2020 at 19:30
samanshf   RSA - Continued fractions 25 January 2020 at 16:53
Kkameleon   RSA - Fractions continues 24 January 2020 at 14:54
luquf   RSA - Fractions continues 23 January 2020 at 14:41
rico   RSA - Fractions continues 22 January 2020 at 21:14
Andaouzek   RSA - Fractions continues 22 January 2020 at 10:36
blueshit   RSA - Fractions continues 21 January 2020 at 23:38

 48 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution
pas_valide Encoding - ASCII 26% 42530 5 Xartrick 10
pas_valide Encoding - UU 21% 33589 5 g0uZ 10
pas_valide Hash - Message Digest 5 21% 34236 5 g0uZ 6
pas_valide Hash - SHA-2 11% 17264 5 koma 4
pas_valide Shift cipher 7% 10370 10 m31z0nyx 6
pas_valide Pixel Madness 5% 8279 15 Ryscrow 10
pas_valide ELF64 - PID encryption 3% 4655 15 Lu33Y 10
pas_valide File - PKZIP 4% 6161 15 g0uZ 6
pas_valide Monoalphabetic substitution - Caesar 5% 7883 15 Arod 4
pas_valide Known plaintext - XOR 3% 4882 20 Ryscrow 5
pas_valide Code - Pseudo Random Number Generator 2% 1835 20 Tosh 5
pas_valide File - Insecure storage 1 4% 5253 20 g0uZ 5
pas_valide Polyalphabetic substitution - Vigenère 4% 5336 20 Arod 3
pas_valide System - Android lock pattern 3% 3435 20 Silentd 4
pas_valide Transposition - Rail Fence 2% 3264 20 YellowS4 3
pas_valide AES - CBC - Bit-Flipping Attack 1% 422 25 Tie21 1
pas_valide AES - ECB 1% 1371 25 cez40 4
pas_valide LFSR - Known plaintext 1% 321 25 Brissouille 1
pas_valide RSA - Factorisation 2% 2259 25 HacKSpider 4
pas_valide RSA - Decipher Oracle 1% 653 25 Zweisamkeit 3
pas_valide Service - Timing attack 1% 1552 25 g0uZ, koma 3
pas_valide Monoalphabetic substitution - Polybe 2% 1850 25 koma 6
pas_valide Initialisation Vector 1% 1010 25 manticore, notfound404 5
pas_valide GEDEFU 1% 323 30 makhno 1
pas_valide RSA - Corrupted key 1 1% 159 30 blackndoor 2
pas_valide RSA - Continued fractions 1% 769 30 sambecks 1
pas_valide RSA - Common modulus 1% 760 30 franb 2
pas_valide Service - Hash length extension attack 1% 473 30 koma 1
pas_valide AES - 4 Rounds 1% 117 35 Cryptanalyse 0
pas_valide ECDSA - Introduction 1% 81 35 Jrmbt 0
pas_valide RSA - Padding 1% 141 35 Tosh 0
pas_valide AES128 - CTR 1% 408 40 Tosh 1
pas_valide Discrete logarithm problem 1% 560 40 Thanat0s, RFC4949 3
pas_valide RSA - Corrupted key 2 1% 109 40 blackndoor 0
pas_valide RSA - Corrupted key 3 1% 51 40 blackndoor 0
pas_valide RSA - Multiple recipients 1% 672 40 franb 3
pas_valide AES - Fault attack #1 1% 61 50 Cryptanalyse 1
pas_valide Enigma Machine 1% 112 50 peyman 1
pas_valide ECDHE 1% 123 60 Tosh 2
pas_valide RSA - Lee cooper 1% 36 60 blackndoor, Synacktiv 0
pas_valide Service - CBC Padding 1% 691 60 koma 1
pas_valide Polyalphabetic substitution - One Time Pad 1% 267 60 Thanat0s 0
pas_valide White-Box Cryptography 1% 90 60 Cryptanalyse 3
pas_valide AES - Weaker variant 1% 39 70 Cryptanalyse 0
pas_valide Hash - SHA-3 1% 61 75 Revenger 1
pas_valide AES - Fault attack #2 1% 43 80 Cryptanalyse 1
pas_valide AES-PMAC 1% 9 100 Cryptanalyse 0
pas_valide ECDSA - Implementation error 1% 14 100 Tosh 0