home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
DP Tool Club 8
/
CDASC08.ISO
/
VRAC
/
DEEDPLTA.ZIP
/
DRKR
< prev
next >
Wrap
Text File
|
1993-03-09
|
2KB
|
32 lines
Dr. Krypton file encryptor was written in QuickBASIC 4.5 by Dave Byter on 13
Feb 93. Friday the Thirteenth came a day late this month.
Dr. Krypton will encrypt and decrypt any file. By a special act of magic,
encryption and decryption are exactly the same process. Encryption twice (with
the same personal encryption numbers) will give you back your original file.
A personal encryption number is a positive single precision QuickBASIC number,
which must be between 1.401298E-45 and 3.402823E+38. In decimal the limits are
0.000000000000000000000000000000000000000000001401298 and
3402823000000000000000000000000000000. In American English, that's between one
plus quattuodecillionth and three hundred plus undecillion. Only the first
seven digits count, but you should play it safe with the eighth digit.
You may choose your desired level of security. Dr. Krypton uses the
QuickBASIC pseudorandom number generator, which is seeded with your personal
encryption number. Given the resources of the Federal Bureau of Investigation,
one could try every seed, and look for any resulting plaintext. With two
personal encryption numbers, you would not know when you got one of them
right. It would require the resources of both the Federal Burro of
Investigation and the Central Intelligence Agency to break your encryption.
With three encryptions, the combined talents of the FBI, CIA, and the National
Security Service would be necessary to break your security. With four
encryptions, they would run out of taxpayers. And you can specify up to ten
personal encryption numbers.
Dr. Krypton does not record your pens in any form anywhere. It would
compromise security to do so. Dr. Krypton overwrites and destroys the file
which it encrypts.
Access to the entire text files is thru <CONTENTS>.