A single byte may be encrypted many, many times, each successive result
being passed to another algorithm in what may be regarded as a random
path determined by reseeding of a random number generator at various
junctures using values from the very large key, the smaller key and
various other user supplied parameters, including, for example, source
user, destination user, file name, save-as file name, and description.
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 a single opportunity for the message to
be unlocked. A message may be secured in accordance with various options
specifying an intended audience, including "global," "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. The present invention further enhances security by allowing
definition of a date range where the data can be decrypted correctly,
hence preventing lengthy efforts to break the code by brute
computational force.
For a detailed explanation please read further:
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A single byte may be encrypted many, many times, each successive result
being passed to another algorithm in what may be regarded as a random
path determined by reseeding of a random number generator at various
junctures using values from the very large key, the smaller key and
various other user supplied parameters, including, for example, source
user, destination user, file name, save-as file name, and description.
