*** ReadMe file for NDCode v.1.0 - 1 Mar. 1997 ***

NDCODE10.ZIP contains NDCODE.MCR and README.TXT.


DESCRIPTION

NDCode is a MacSys macro to eNCode or DeCode strings of text. Use NDCode to selectively encrypt sensitive pieces of information of up to 250 characters in length. Therefore, select the desired text. If the selected string is too long the macro will warn you and stop. Make sure there are no "Enters" (paragraph ends) in your selection, since this will result in encryption of only the part in front of the first "Enter" and loss of the rest of the selection. When you do want line feeds in your selection use <Shift-Enter> instead. After selection hit NDCode's hot-key. The macro will prompt you for a password that it uses in the subsequent encryption computation. The result is an unreadable string of characters that replaces the original text. For decryption, select this string, hit the hot-key and enter the same password. Make sure to select all (no more and no less) characters of this string (the strings will always start with ">>>" and end with "<<<"). The password may be from 1 to 8 characters long, is case sensitive, and contain all characters that can be entered from the keybord. The password is nowhere stored on the machine, which adds to the security of the system. I don't claim the encrypted information to be unbreakable, but I'm convinced that the encryption is a lot safer than the password protection offered by some other programs. 


DISCLAIMER

I've used NDCode on my English 1 Mb Psion 3a, where it performed flawlessly. However, needless to say, I don't give guarantees and you cannot hold me responsible in case anything goes wrong. If you forget the password used for encryption there is no way to retrieve the encoded information.

I cannot anticipate how often I'll upload future updates. I'm hesitant to stress the sysops of the Psion websites with too many updates and I certainly don't want to tire users with "daily" minor updates. However, when you send me your E-mail address, I'll add your name to a list of NDCode users who will receive all future (major and minor) updates by E-mail.

NDCode is freeware. You are free to use, modify and copy the macro. The only "rule" I would like you to observe is to pass only this unmodified version of NDCode, including this readme.txt file, on to others.


INSTALLATION

Copy NDCODE.MCR to directory \MACRO\MCR. Open Tom Dolbilin's MACRO (MacSys), open NDCODE.MCR (Psion-E) and translate it (Psion-T). After installation assign a convenient hot-key (I use <Ctrl-Psion-X>). NDCode is now ready for use.


Enjoy NDCode. If you like the macro, please, give me feed-back. Any comment, suggestion and critisism is welcome. 

When you are looking for a program that stores your secret codes in a database, try my macro CodeSafe. Another macro I wrote is ExAb. It is a program for extension of your self-defined abbreviations into text strings or blocks.

Thanks to Tom Dolbilin for his excellent MACRO program.

Huub Linthorst
E-mail: linthors@chem.leidenuniv.nl