The ACA


The American Cryptogram Association (ACA) is a non-profit organization dedicated to promoting the hobby and art of cryptanalysis -- that is, learning to break ciphers.

Join Us!

Now is an ideal time to join the ACA. While supplies last, new members will receive a CD-ROM containing the contents of The Cryptogram from 1932 to 2009. For information on membership benefits and details on how to join see Membership.

   

News

Free Web App.

The ACA's "Solve a Cipher!" program is now available as a free web app for users of Google's Chrome web browser. To get it, click HERE, or go to the Chrome Web Store and search on "ciphers".

New Expanded Free Sample Issue

The free sample issue of The Cryptogram available for download has been expanded with more explanations and many more ciphers to solve. Read about it and download it on the Sample Issue page under About the ACA .

2nd Edition PHOENIX Memorial CDROM

A member reported that the links on the index page of the 2nd Edition PHOENIX Memorial CDROM did not work with Acrobat Reader v9. It turned out to be caused by the default value of a preference option. Here is how it was corrected:

Edit->Preferences

Documents->View Documents in PDF/A mode: NEVER

From the Edit menu, select "Preferences", then choose to look under Category "Documents".

The option "View Documents in PDF/A mode" should be changed to "Never".

FBI Code Breaking Challenge.

The FBI has a website with a code breaking challenge. Check it out.

THE RAT has made available for ACA members a program called Conmaker. It is designed for Windows users to easily create and submit cons to the ACA column editors. If interested, go to the Members Area / Downloads and get your copy.

   

Events

2012 ACA Annual Convention, Denver, Colorado
Come and participate in this year's ACA Annual Convention, hosted by RR TRACK, and enjoy technical sessions, cipher fun, and the camaraderie of socializing with other members of the Krewe.
The convention will be held August 31-September 2 at the Country Inn and Suites, located near the Denver International Airport. If you are also planning a summer vacation in Rocky Mountain country, Denver is a convenient jumping-off point, with historic mining towns, outdoor recreation, and awe-inspiring natural beauty just a few hours away. Locally, Denver is proud of its many museums and art galleries. Check out the must-see Denver attractions at: www.denver.org/what-to-do/must-see-denver.
Hotel Information: Country Inn and Suites, 4343 N. Airport Way, Denver CO 80239. ACA nightly rates: Standard Double/King: $95+tax. Included are hot breakfast buffet, free high-speed internet throughout the hotel, free parking, and complimentary shuttle service to and from the airport. These rates are valid during the period August 26-September 4. Rates are guaranteed to all members who make their reservations directly with the hotel (phone 303-375-1105) before July 31. After that date rooms can be reserved if available at the same rate. To obtain these rates you must mention that you are with the American Cryptogram Association group.
Activities: For early birds arriving by Thursday night, dinner at a local restaurant. Friday late morning: group tour of Denver Mint, possibly another tour in the afternoon. Friday night: pizza night with some cipher fun and socializing for all. Spouses will discuss their activities for Saturday. Please bring something for the sharing table. Saturday: technical presentations, followed by the cipher contest and buffet-style banquet at the hotel. The activities for spouses will take place starting in the morning. Sunday morning: General Business meeting, and for those staying on, group festivities for lunch, afternoon outing, and dinner at a local restaurant. If you are staying on, please indicate your choice of Sunday outing on the registration form. Possibilities include: Wings Over the Rockies Air and Space Museum, Colorado Railroad Museum, Buffalo Bill Museum and Grave, Coors Brewery. The Mint is not open on Sunday.
More Information: If you would like to present a talk at the technical session on Saturday or if you have a request for a topic to be covered, please contact Cary Davids (NUCULAR)
6367 Kindling Ct.
Lisle, IL 60532
carydavids(at)comast.net