1. Re: Data Encryption
- Posted by Alan Tu <ATU5713 at COMPUSERVE.COM>
Jun 18, 1998
-
Last edited Jun 19, 1998
Robert B Pilkington wrote (a month ago):
I have made one (an algorithm) that uses password encryption. I
figure that if you use several passwords, and decrypt with the WRONG
password at least once, the file would be impossible to crack, especially=
if I make a couple of changes to the basic algorithm. It's fast too.
This is how mine works:
It gets and confirms the password
It performs calculations on the password (adding the ASCII values up and
such and a little bit more) to get a number.
Seeds the randomizer to the number (set_rand(number))
Takes each character in the file, and adds a random number between 1 and
255 to it and puts it into the output file. (or subtracts in decryption)
I think I can learn some low-level concepts from this algorithm.
Are you using ASCII values or bits? There are eight bits in a byte. So =
if
you add 1 to 255 to eight bits, you got a 9-bit number. How can you writ=
e
byte-for-byte? Similar thing for ASCII values.
--Alan
=
