Welcome Guest [Log In] [Register]
Welcome to Crypto. We hope you enjoy your visit.


You're currently viewing our forum as a guest. This means you are limited to certain areas of the board and there are some features you can't use. If you join our community, you'll be able to access member-only sections, and use many member-only features such as customizing your profile, sending personal messages, and voting in polls. Registration is simple, fast, and completely free.


Join our community!


If you're already a member please log in to your account to access all of our features:

Username:   Password:
Make New Topic
Challenges
  Title Topic Starter Replies Views Topic Info
Regular Introductory
Moshe's Request
jvpresogna 0 6
Yesterday, 5:53 PM
Last Post By: jvpresogna
Regular Adfgx Cipher
Neo2k 0 97
Feb 7 2010, 12:40 PM
Last Post By: Neo2k
Regular October cipher
Moderate difficulty
Rhinedahl 9 187
Feb 3 2010, 02:11 PM
Last Post By: Rhinedahl
Regular Encrypted ad in Games Magazine (March 2010)
mosher 7 182
Dec 20 2009, 10:03 AM
Last Post By: Revelation
Regular Crypto challenge: from Cipher Deavours college course, 1976
mosher 2 212
Nov 7 2009, 09:11 AM
Last Post By: tenpanaris
Regular 17th Century Cipher
cmdline 7 296
Jul 28 2009, 02:45 AM
Last Post By: cmdline
Regular ADFGVX Cipher Challenge
osric 5 827
Jun 11 2009, 10:08 PM
Last Post By: osric
Regular A New Kind Of Hill Cipher
a New Cipher and a Challenge
weux082690 0 200
Apr 3 2009, 01:14 AM
Last Post By: weux082690
Regular A New Challenge
tidmiste 11 477
Aug 29 2008, 11:14 PM
Last Post By: jdege
Regular Bitwise XOR problem
jdege 0 180
Aug 3 2008, 03:16 AM
Last Post By: jdege
Hot Topic
  • Pages:
  • 1
  • 4
My New Cipher
Quite Interesting!!
Paarth Dave 51 980
May 10 2008, 12:32 PM
Last Post By: Paarth Dave
Regular Help Needed
Paarth Dave 3 213
May 5 2008, 07:30 AM
Last Post By: Paarth Dave
Hot Topic
  • Pages:
  • 1
  • 3
Can Anyone Break This????
Paarth Dave 32 792
Apr 13 2008, 05:37 PM
Last Post By: jdege
Regular *echo* *echo*
s3c 6 267
Apr 5 2008, 07:18 AM
Last Post By: s3c
Regular Can You Break The Unbreakabe?
The best cipher of mine....
Paarth Dave 9 326
Apr 4 2008, 06:27 AM
Last Post By: Paarth Dave
Make New Topic