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Fast Crypt


jpam
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udf and dll to encrypt/decrypt and Compress/Decompress all kind of files

XOR based encryption/decryption

password key's can be a string or file of any lenght.

dll , udf and test script all included in zipfile

10.7 mb file encrypting in 89 ms

on my comp running a celeron 2.4 ghz

Compress and Encrypt 1407 KB bitmap:

compress = 47.72 ms

EnCrypt = 2.4 ms

New size 799 KB

Decrypt an Decompress:

DeCrypt = 2.38 ms

Decompress = 9.97 ms

New size 1407 KB

Compress and Encrypt 4.022 bytes textfile:

compress = 0.27 ms

EnCrypt = 0.09 ms

New size 1.553 bytes

Decrypt an Decompress:

DeCrypt = 0.08 ms

Decompress = 0.13 ms

New size 4.022 bytes

It's not the best compressor like zip or winrar, but i have build this Compress/Decompress function for speed

download @ http://prospeed-jan.xprofan.com/list-all-downloads.php

"FastCrypt.zip"

Comments are wellcom

muttley

Edited by jpam
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did some optimizing on the dll

50% speed increase for encrypt/decrypt

crypt function needs only 2 parameters now

you can now use a password string or a file as encryption key

key files can be the same size or longer as the source file

so , there are no sequential repeats in the key,

it's very hard to crack because the key can be any type of data including binary files.

download @ http://prospeed-jan.xprofan.com/list-all-downloads.php

muttley

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  • 1 month later...

Is it a possibility of me using Vista? This time, I ran it and got this:

co

(Hmm, the correct letter isnt showing up, but its like thi _| but connected, and smaller, like an exponet.)

(I also change it back to cow, and then run it twice, and get: coÔ) It seems to be different every time?

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