RSP Software - December 13, 2003 07:52:37 PM 


RSP Encrypt OCX 1.0.0

ActiveX OCX to encrypt files with a very fast implementation 
of AES 256 bits and standard RC4


Features

The AES ( Advanced Encryption Standard ) is adopted by 
NIST as an encryption standard to be used when very strong 
encryption is required

The RC4 is the standard RC4 encryption developed by 
RSA , the control has optimized code for new AMD Athlon 
and Intel P4 processors

The Advanced Encryption Standard (AES) specifies a 
FIPS-approved cryptographic algorithm that can be 
used to protect electronic data.

The AES algorithm is a symmetric block cipher that can 
encrypt (encipher) and decrypt (decipher) information.

Encryption converts data to an unintelligible form called 
ciphertext; decrypting the ciphertext converts the data 
back into its original form, called plaintext.

The AES algorithm is capable of using cryptographic keys 
of 128, 192, and 256 bits to encrypt and decrypt data in 
blocks of 128 bits.

Notice that this control implements the 256 bit version 
of the AES encryption

And notice also that to avoid the padding of the files 
that are not multiples of 16 bytes , the slice of the 
file that are different of a multiple of 16 is encrypted 
with RC4 , so , the destination file will always be the 
size size of the original file , in case of problems we 
can generate this control using the standard padding 
method using an additional header in the destination 
encrypted file



Documentation

Documentation is available online in the homepage

Install

- To install the control , open the package , decompress "OCX install.zip"
and execute setup.exe , it will initialize the installation execution
of the control
- To use the sample , decompress the "sample project.zip" to an empty folder
and load the project in your VB
- To uninstall the control , search for the package in the add/remove applications
in the controle panel , and select remove , it will remove the control
from the system

Homepage
http://rspsoftware.clic3.net
http://rspsoftware.tripod.com
http://www.geocities.com/rspsoftware1/

Homepage of the control
http://rspsoftware.clic3.net/rspencrypt.htm
http://rspsoftware.tripod.com/rspencrypt.htm
http://www.geocities.com/rspsoftware1/rspencrypt.htm

Email 
info@rspsoftware.clic3.net
rspsoftware1@yahoo.com
maquisistem@wln.com.br

Phone
#55 46 2323994

Thanks for using our software

RSP Software 1996-2003