An optional higher level of security is available. If the message is secured using the same string as the file name and save-to file name, then when unlocking is attempted the first time, the original file will be overwritten, affording only single opportunity for the message to be unlocked. A message may be secured in accordance with various options specifying an intended audience, including Global , Group , Specific and Private options. Global allows anyone having a copy of the data security software to decrypt the message providing that person has the correct keys and is able to supply parameters matching those with which the message was secured. Group allows the possibility of successful decryption by any of a number of users within a group identified by its members having copies of the software program with a common prefix.
Specific allows only a user having a particular numbered copy of the software program to decrypt.
Finally, Private allows decryption only by the same software copy used to secure the message originally. Without the correct keys and parameters, it is impossible for the message to be unlocked. Security can be further enhanced by defining a date range wherein the data can be decrypted correctly, hence preventing lengthy efforts to break the code by brute computational force. Disclaimer Copyright 1997-2001 Meganet Corporation. All rights reserved.