MD5 Message Digest Algorithm for Implementing Digitial Signatures

Category:

Miscellaneous

Type:

Applications

Difficulty:

Advanced

Author:

Robert M. Hubley

Version Compatibility: Visual Basic 6

More information:

Various ports of the MD5 RSA Reference Implementation. This includes a VB Native Class, a C DLL (with VB wrapper), and a java port.

The MD5 algorithm takes as input a message of arbitrary length and produces as output a 128-bit "fingerprint" or "message digest" of the input. It is intended for digital signature applications, where a large file must be "compressed" in a secure manner before being encrypted with a private (secret) key under a public-key cryptosystem such as RSA.

For more information about this algorithm, see the following:

http://www.w3.org/PICS/DSig/RSA-MD5_1_0.html
http://www.gl.umbc.edu/~mabzug1/cs/md5/md5.html

Instructions: Click the link below to download the code. Select 'Save' from the IE popup dialog. Once downloaded, open the .zip file from your local drive using WinZip or a comparable program to view the contents.

Download md5ref11.zip