what is MD5

[damod.php@gmail.com]

What is MD5 its encryption algorithm...? am in php Mysql

[Mike Russell]

Re: what is MD5

<damod.php@gmai l.comwrote in message
news:1171690564 .542111.127690@ s48g2000cws.goo glegroups.com.. .

>
What is MD5 its encryption algorithm...? am in php Mysql

I treat it as a black box that takes any string, and converts it to a 32
character "encrypted" string that happens to be a hex number. The algorithm
is fast on systems with 32 bit registers, and (for a while anyway) it was
very difficult to "fool", in the sense of coming up with a string that will
produce the desired encrypted value.

http://en.wikipedia.org/wiki/MD5

--
Mike Russell

https://www.curvemeister.com/forum/

[Toby A Inkster]

Re: what is MD5

damod.php wrote:

What is MD5 its encryption algorithm...? am in php Mysql

No -- it's a hash algorithm. Hashing is a bit like encryption, except:

1. When you hash a really long string, you get back something
much shorter.

2. The conversion is one way only. You can't unhash.

Compare:

=============== =============== =============== =============== ==========
Garbles? Shrinks? Reversable? Example
----------------------------------------------------------------------
Encryption Yes No Yes GPG
Hashing Yes Yes No MD5, SHA1
Compression Yes Yes Yes ZIP, Gzip, Bzip2
Encoding Slightly No Yes htmlentitites()
=============== =============== =============== =============== ==========


--
Toby A Inkster BSc (Hons) ARCS
Contact Me ~ http://tobyinkster.co.uk/contact
Geek of ~ HTML/SQL/Perl/PHP/Python*/Apache/Linux

* = I'm getting there!