Shmoocon 2010 Crypto Challenge Pack
Author: andrewl.us
Protection: GF-arithmetics, RSA, Modular-arithmetics and equation system over GF(2)
The 4th one is really tricky and can be solved in atleast two ways. See andrewl.us explanations posted after solution was posted on crackmes.de: http://rcejunk.blogspot.com/2010/08/shmoocon-2010-crypto-pack-solved.html
Generally: a really good package of different level crackmes and variations!
You can download my solution here
13 augusti 2010
29 april 2010
KKR's VoLtAgE Keygenme
VoLtAgE Keygenme
Author: KKR
Protection: ECDSA-72,MD5,SHA1
Nice crackme, takes some time to fix the modded MD5 thought.. my solution is here
Author: KKR
Protection: ECDSA-72,MD5,SHA1
Nice crackme, takes some time to fix the modded MD5 thought.. my solution is here
8 mars 2010
Happytown CrackMe 39
Crackme 39
Author: Happytown
Protection: DSA, Hash (custom?)
A very straight forward crackme using a bit odd bigint library, if anybody know the name of it please let me know. Fun crackme, my solution is here
Author: Happytown
Protection: DSA, Hash (custom?)
A very straight forward crackme using a bit odd bigint library, if anybody know the name of it please let me know. Fun crackme, my solution is here
8 februari 2010
WiteG Crackme 8
26 januari 2010
Keygenme Tre
Keygenme Tre
Recent crackme by me, using some interesting crypto with a own written biglib. More info in the readme.
No solutions yet(except my own).
Recent crackme by me, using some interesting crypto with a own written biglib. More info in the readme.
No solutions yet(except my own).
13 januari 2010
HMX0101's Cockroach
25 november 2009
Andrewl.us SDDecoder Junior
SDDecoder Junior
Author: andrewl.us
Language: C/C++
Protection: GF(2) Equations
Very interesting one, linear system of equations over GF(2), solved using Gauss Elimination over GF(2). Plus some other GF(2) arithmetics are in the challenge. The crackme is a part of a quest to learn more about MQ schemes and eventually break SDDecoder. My solution to the SDDecoder Junior is here
Author: andrewl.us
Language: C/C++
Protection: GF(2) Equations
Very interesting one, linear system of equations over GF(2), solved using Gauss Elimination over GF(2). Plus some other GF(2) arithmetics are in the challenge. The crackme is a part of a quest to learn more about MQ schemes and eventually break SDDecoder. My solution to the SDDecoder Junior is here
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