RSA - Decipher Oracle

25 Points  

Darkness cannot drive out darkness; only light can do that.

Author

Zweisamkeit,  

Level  Difficulty

Validations

535 Challengers 1%

Note  Notation

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46 Votes
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Solution 3 Solutions

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Challenge Results Challenge Results

Pseudo Challenge Lang date
erwinn   RSA - Oracle de déchiffrement fr 21 August 2019 at 11:05
Bernstein   RSA - Oracle de déchiffrement fr 18 August 2019 at 19:06
erk3   RSA - Oracle de déchiffrement fr 18 August 2019 at 17:44
DSpiricate   RSA - Oracle de déchiffrement fr 17 August 2019 at 13:57
youpla1   RSA - Oracle de déchiffrement fr 15 August 2019 at 15:35
arnaud   RSA - Oracle de déchiffrement fr 9 August 2019 at 19:30
Andro6   RSA - Decipher Oracle en 9 August 2019 at 18:27
Forgiven   RSA - Oracle de déchiffrement fr 9 August 2019 at 07:32
daninnm   RSA - Decipher Oracle en 7 August 2019 at 03:00
siroc   RSA - Decipher Oracle en 6 August 2019 at 18:22

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% 36847 5 Xartrick 10
pas_valide Encoding - UU 21% 29226 5 g0uZ 10
pas_valide Hash - Message Digest 5 21% 29941 5 g0uZ 6
pas_valide Hash - SHA-2 11% 14958 5 koma 4
pas_valide Shift cipher 7% 8835 10 m31z0nyx 5
pas_valide Pixel Madness 5% 7151 15 Ryscrow 10
pas_valide ELF64 - PID encryption 3% 4115 15 Lu33Y 10
pas_valide File - PKZIP 4% 5276 15 g0uZ 5
pas_valide Monoalphabetic substitution - Caesar 5% 6877 15 Arod 4
pas_valide Known plaintext - XOR 3% 4321 20 Ryscrow 4
pas_valide Code - Pseudo Random Number Generator 2% 1633 20 Tosh 5
pas_valide File - Insecure storage 1 4% 4820 20 g0uZ 5
pas_valide Polyalphabetic substitution - Vigenère 4% 4678 20 Arod 3
pas_valide System - Android lock pattern 3% 3005 20 Silentd 3
pas_valide Transposition - Rail Fence 2% 2834 20 YellowS4 2
pas_valide AES - CBC - Bit-Flipping Attack 1% 302 25 Tie21 1
pas_valide AES - ECB 1% 1191 25 cez40 4
pas_valide LFSR - Known plaintext 1% 234 25 Brissouille 1
pas_valide RSA - Factorisation 2% 1978 25 HacKSpider 4
pas_valide RSA - Decipher Oracle 1% 535 25 Zweisamkeit 3
pas_valide Service - Timing attack 1% 1437 25 g0uZ, koma 3
pas_valide Monoalphabetic substitution - Polybe 2% 1631 25 koma 6
pas_valide Initialisation Vector 1% 883 25 manticore, notfound 3
pas_valide GEDEFU 1% 278 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% 623 30 franb 2
pas_valide Service - Hash length extension attack 1% 411 30 koma 1
pas_valide AES - 4 Rounds 1% 89 35 Cryptanalyse 0
pas_valide RSA - Padding 1% 124 35 Tosh 0
pas_valide AES128 - CTR 1% 376 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% 578 40 franb 3
pas_valide AES - Fault attack #1 1% 45 50 Cryptanalyse 1
pas_valide Enigma Machine 1% 102 50 peyman 1
pas_valide ECDHE 1% 112 60 Tosh 2
pas_valide Service - CBC Padding 1% 616 60 koma 1
pas_valide Polyalphabetic substitution - One Time Pad 1% 255 60 Thanat0s 0
pas_valide White-Box Cryptography 1% 73 60 Cryptanalyse 2
pas_valide AES - Weaker variant 1% 32 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