Cryptography and Encryption

[balavenu.nuti@xxxxxxxxxxxxxxxx (BALAVENU NUTI)]

Hi,
	MD5 is a hashing algorithm, there is no way of geting back the
original data once you create a MD5 hash out of it!! That is the whole
point of using a hash algo. This is ideal with passwords, where you just
store the password of the user as a hash, next time when he enters his
password, hash it & compare the hashes!!! 

If you really want passwords stored in encrypted format & retrieved I
suggest you look at key based agorithms like Blowfish or DES. 

Regards
Venu.

On Tue, 29 Feb 2000, Biju Nambisan wrote:

> 
> Hi! All,
> 
> I am trying to encode the password using the MD5 algorithm thats
> provided with the jdk1.2.We also have a necessity to decrypt the
> password....Can somebody who has worked on this suggest the code that
> goes in for decrypting.(We are interested in using MD5 for decrypting as
> well)
> Are there any freeware packages that can be imported and used ??
> This is with reference to servlets...
> Please respond ASAP...
> 
> Thanks in Advance!!
> 
> Regards,
> Biju
> 
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