LFSR - Known plaintext

25 Points  

Linear Feedback Shift Register

Author

Brissouille,  

Level  Difficulty

Validations

233 Challengers 1%

Note  Notation

1
2
3
4
5
32 Votes
To reach this part of the site please login

Solution 1 Solution

Display solutions Submit a solution

Challenge Results Challenge Results

Pseudo Challenge Lang date
untel   LFSR - Clair connu fr 20 August 2019 at 01:22
Grumpy   LFSR - Clair connu fr 14 August 2019 at 09:36
Forgiven   LFSR - Clair connu fr 10 August 2019 at 11:10
Bdenneu   LFSR - Clair connu fr 9 August 2019 at 23:57
siroc   LFSR - Known plaintext en 8 August 2019 at 19:39
Djayk   LFSR - Clair connu fr 5 August 2019 at 11:13
hiboo   LFSR - Clair connu fr 4 August 2019 at 16:14
youpla1   LFSR - Clair connu fr 1 August 2019 at 10:35
white_glint   LFSR - Clair connu fr 1 August 2019 at 09:58
Tomtombinary   LFSR - Clair connu fr 30 July 2019 at 21:22

Challenges associated with this section 44 Challenges

Results Challenge's Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution
pas_valide Encoding - ASCII 26% 36741 5 Xartrick 10
pas_valide Encoding - UU 21% 29148 5 g0uZ 10
pas_valide Hash - Message Digest 5 21% 29867 5 g0uZ 6
pas_valide Hash - SHA-2 11% 14918 5 koma 4
pas_valide Shift cipher 7% 8815 10 m31z0nyx 5
pas_valide Pixel Madness 5% 7133 15 Ryscrow 10
pas_valide ELF64 - PID encryption 3% 4110 15 Lu33Y 10
pas_valide File - PKZIP 4% 5264 15 g0uZ 5
pas_valide Monoalphabetic substitution - Caesar 5% 6867 15 Arod 4
pas_valide Known plaintext - XOR 3% 4314 20 Ryscrow 4
pas_valide Code - Pseudo Random Number Generator 2% 1632 20 Tosh 5
pas_valide File - Insecure storage 1 4% 4814 20 g0uZ 5
pas_valide Polyalphabetic substitution - Vigenère 4% 4673 20 Arod 3
pas_valide System - Android lock pattern 3% 2998 20 Silentd 3
pas_valide Transposition - Rail Fence 2% 2829 20 YellowS4 2
pas_valide AES - CBC - Bit-Flipping Attack 1% 299 25 Tie21 1
pas_valide AES - ECB 1% 1187 25 cez40 4
pas_valide LFSR - Known plaintext 1% 233 25 Brissouille 1
pas_valide RSA - Factorisation 2% 1975 25 HacKSpider 4
pas_valide RSA - Decipher Oracle 1% 534 25 Zweisamkeit 3
pas_valide Service - Timing attack 1% 1436 25 g0uZ, koma 3
pas_valide Monoalphabetic substitution - Polybe 2% 1627 25 koma 6
pas_valide Initialisation Vector 1% 882 25 manticore, notfound 3
pas_valide GEDEFU 1% 277 30 makhno 1
pas_valide RSA - Corrupted key V1 1% 118 30 blackndoor 2
pas_valide RSA - Continued fractions 1% 676 30 sambecks 1
pas_valide RSA - Common modulus 1% 622 30 franb 2
pas_valide Service - Hash length extension attack 1% 410 30 koma 1
pas_valide AES - 4 Rounds 1% 89 35 Cryptanalyse 0
pas_valide RSA - Padding 1% 123 35 Tosh 0
pas_valide AES128 - CTR 1% 375 40 Tosh 1
pas_valide Discrete logarithm problem 1% 500 40 Thanat0s, RFC4949 3
pas_valide RSA - Corrupted key V2 1% 91 40 blackndoor 0
pas_valide RSA - Multiple recipients 1% 577 40 franb 3
pas_valide AES - Fault attack #1 1% 45 50 Cryptanalyse 1
pas_valide Enigma Machine 1% 100 50 peyman 1
pas_valide ECDHE 1% 112 60 Tosh 2
pas_valide Service - CBC Padding 1% 613 60 koma 1
pas_valide Polyalphabetic substitution - One Time Pad 1% 255 60 Thanat0s 0
pas_valide White-Box Cryptography 1% 72 60 Cryptanalyse 2
pas_valide AES - Weaker variant 1% 31 70 Cryptanalyse 0
pas_valide Hash - SHA-3 1% 57 75 Revenger 1
pas_valide AES - Fault attack #2 1% 32 80 Cryptanalyse 0
pas_valide AES-PMAC 1% 7 100 Cryptanalyse 0