CTF Writeup (Crypto)

This repository contains my writeup or ... corpse LoL.

Writeups of the following challenges from CTFs:

S.No.	CTF name	Challenge-Name	Points	Vulnerability/Concept	Level of Difficulty
1	Insomni'hack teaser	Rule86	78	Number Theory/z3
2	ACEBEAR Security Contest	CNVService	856	CBC-Bit Flipping Attack
3	Codegate Preliminary	RSAbaby	349	Euler's Thm + FLT on RSA
4	Pragyan CTF	RSA's Quest	200	Chosen Ciphertext Attack
5	N1CTF	Baby N1ES	85	Feistel Network Reverse
6	N1CTF	RSA Padding	303	Franklin Reiter's related message attack
7	b00t2root'18	RSA-2	200	Franklin Reiter's related message attack
8	Volga CTF Quals	Nonsense	200	Number Theory
9	Swamp CTF	Locked-Dungeons-2	498	CBC-Bit Flipping Attack
10	Midnight Sun CTF Quals	Hm4c	50	Bit by Bit decryption
11	Meepwn CTF Quals	Bazik	100	Coppersmith's Stereotyped
12	Tokyo Westerns CTF	Revolutional-Secure-Angou	nil	Number Theory + RSA
13	noxCTF	WTF	742	Wiener's Attack
14	noxCTF	Trinity	794	Hastad's Broadcast Attack
15	noxCTF	Decryptor	447	Chosen Ciphertext Attack
16	HackIT CTF	Into The Darkness	862	CBC Bit Flipping Attack
17	HITCON CTF	Lost-Key	257	LSByte Oracle Attack
18	CSAW CTF Finals	Disastrous Security	400	Breaking MTRNG to get k and forge DSA
19	Hxp CTF	Daring	105	Weak padding + Number Theory + small RSA exponent