RSA - Decipher Oracle

25 Points  

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

Author

Zweisamkeit,  

Level  Difficulty

Validations

589 Challengers 1%

Note  Notation

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50 Votes
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Solution 3 Solutions

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Challenge Results Challenge Results

Pseudo Challenge Lang date
Medghost   RSA - Oracle de déchiffrement fr 17 November 2019 at 16:38
Monta   RSA - Decipher Oracle en 17 November 2019 at 16:22
mteaudors   RSA - Oracle de déchiffrement fr 15 November 2019 at 18:10
nyg   RSA - Oracle de déchiffrement fr 15 November 2019 at 17:20
pouet   RSA - Oracle de déchiffrement fr 13 November 2019 at 23:29
ZeR0-@bSoLu   RSA - Oracle de déchiffrement fr 12 November 2019 at 15:17
Maestran   RSA - Oracle de déchiffrement fr 11 November 2019 at 14:45
FdLSifu   RSA - Decipher Oracle en 10 November 2019 at 22:17
v.martyanov   RSA - Decipher Oracle en 10 November 2019 at 13:19
s73p1n   RSA - Decipher Oracle en 9 November 2019 at 22:03

Challenges associated with this section 48 Challenges

Results Challenge's Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution
pas_valide Encoding - ASCII 26% 40018 5 Xartrick 10
pas_valide Encoding - UU 20% 31714 5 g0uZ 10
pas_valide Hash - Message Digest 5 21% 32452 5 g0uZ 6
pas_valide Hash - SHA-2 11% 16257 5 koma 4
pas_valide Shift cipher 7% 9731 10 m31z0nyx 6
pas_valide Pixel Madness 5% 7793 15 Ryscrow 10
pas_valide ELF64 - PID encryption 3% 4416 15 Lu33Y 10
pas_valide File - PKZIP 4% 5757 15 g0uZ 5
pas_valide Monoalphabetic substitution - Caesar 5% 7425 15 Arod 4
pas_valide Known plaintext - XOR 3% 4614 20 Ryscrow 4
pas_valide Code - Pseudo Random Number Generator 2% 1730 20 Tosh 5
pas_valide File - Insecure storage 1 4% 5028 20 g0uZ 5
pas_valide Polyalphabetic substitution - Vigenère 4% 5006 20 Arod 3
pas_valide System - Android lock pattern 3% 3214 20 Silentd 3
pas_valide Transposition - Rail Fence 2% 3029 20 YellowS4 2
pas_valide AES - CBC - Bit-Flipping Attack 1% 353 25 Tie21 1
pas_valide AES - ECB 1% 1275 25 cez40 4
pas_valide LFSR - Known plaintext 1% 271 25 Brissouille 1
pas_valide RSA - Factorisation 2% 2108 25 HacKSpider 4
pas_valide RSA - Decipher Oracle 1% 589 25 Zweisamkeit 3
pas_valide Service - Timing attack 1% 1494 25 g0uZ, koma 3
pas_valide Monoalphabetic substitution - Polybe 2% 1725 25 koma 6
pas_valide Initialisation Vector 1% 944 25 manticore, notfound 4
pas_valide GEDEFU 1% 305 30 makhno 1
pas_valide RSA - Corrupted key 1 1% 139 30 blackndoor 2
pas_valide RSA - Continued fractions 1% 719 30 sambecks 1
pas_valide RSA - Common modulus 1% 680 30 franb 2
pas_valide Service - Hash length extension attack 1% 443 30 koma 1
pas_valide AES - 4 Rounds 1% 107 35 Cryptanalyse 0
pas_valide ECDSA - Introduction 1% 58 35 Jrmbt 0
pas_valide RSA - Padding 1% 135 35 Tosh 0
pas_valide AES128 - CTR 1% 393 40 Tosh 1
pas_valide Discrete logarithm problem 1% 518 40 Thanat0s, RFC4949 3
pas_valide RSA - Corrupted key 2 1% 97 40 blackndoor 0
pas_valide RSA - Corrupted key 3 1% 35 40 blackndoor 0
pas_valide RSA - Multiple recipients 1% 604 40 franb 3
pas_valide AES - Fault attack #1 1% 53 50 Cryptanalyse 1
pas_valide Enigma Machine 1% 110 50 peyman 1
pas_valide ECDHE 1% 120 60 Tosh 2
pas_valide RSA - Lee cooper 1% 17 60 blackndoor, Synacktiv 0
pas_valide Service - CBC Padding 1% 636 60 koma 1
pas_valide Polyalphabetic substitution - One Time Pad 1% 265 60 Thanat0s 0
pas_valide White-Box Cryptography 1% 89 60 Cryptanalyse 2
pas_valide AES - Weaker variant 1% 36 70 Cryptanalyse 0
pas_valide Hash - SHA-3 1% 60 75 Revenger 1
pas_valide AES - Fault attack #2 1% 34 80 Cryptanalyse 0
pas_valide AES-PMAC 1% 8 100 Cryptanalyse 0
pas_valide ECDSA - Implementation error 1% 12 100 Tosh 0