[Resolved] Good Encryption Algorithem

[ScubaKing22]

Does anyone happen to know an excellent encryption algorithem or where I can find one?

[matt_4013]

http://www.php.net/md5 🙂

[ScubaKing22]

Ugh for the millionth billionth time md5 is NOT an encryption function. Anyone else?? I'm talking about a function or something that can be encrypted and later, if need be, decrypted. MD5 can only be compared to an md5 of the original and is, again, NOT for encryption...

[Mordecai]

Do you want an actual algorithm or a function? If you want a function, look at the mcrypt library. You can also use base64, which is pretty hefty stuff.
Check out this page for information about compression and encryption; it covers mostly things about cyphers.

[ScubaKing22]

Sorry for not being clear...an algorithm I think would be better because if I used a PHP function perhaps people would know how to decrypt...I don't know just something that does an excellent job, such as blowfish. BTW I looked at Blowfish and couldn't find the a PHP version? Would you happen to know any?

[matt_4013]

You're right, it's not an encryption function, but for PHP it usually serves the same purpose. If you really want encryption, have a look at the Blowfish encryption algorithms - http://www.counterpane.com/blowfish.html

NB: Why be so hostile, a simple "I've already discounted using md5, thanks for the suggestion", would've sufficed.

Edit - Posted at the same time

[Mordecai]

If you use crypt(), you can use the CRYPT_BLOWFISH as the salt, which will generate a Blowfish-standard 16 character salt starting with "$2$."

[ScubaKing22]

LOL Sorry, I didn't mean to be harsh its just that sooooo many people suggest and/or use MD5 for encryption its not even funny. Didn't mean to hurt you...🙂

[ScubaKing22]

OK I read about crypt() mordecai and it said one-way encryption. Would this mean I would have to use crypt for both encrypting and "decrypting" or comparing?

[php4_23]

Yes, you would have to encrypt them both and compare the results to see if thay are the same.

oh btw Marilyn Monroe does not have 11 toes
http://marilynmonroepages.com/6toes.html

[Mordecai]

Yeah, crypt() is a hash (one-way algorithm). If you were using Blowfish, however, you could write a function that decrypts it.

[ScubaKing22]

OK well I've read in numerous places that she did so I'm sticking with those 6+ pages compared to your one. So there. Also, how could you decrypt blowfish? Supposedly it is "un-breakable" and has not been cracked. Or is that a different C/C++ version or something?

[Mordecai]

I don't think Blowfish is a hash.. I googled and found this.

[ScubaKing22]

OK well that made no sense whatsoever. I'm guessing that is the actuall algorithm, but I didn't get most of it...Anyway I'm finished I'm just going to use that CRYPT_BLOWFISH method that seems to be good. Thanks all. BTW this is what I'm using (I believe it should work...🙂):

$pwrd="hello";

$i=0;
while ($i<20){
$pwrd=crypt($pwrd,CRYPT_BLOWFISH);
++$i;
}
$i=0;
while ($i<20){
$pwrd=crypt($pwrd,CRYPT_MD5);
++$i;
}
$i=0;
while ($i<20){
$pwrd=crypt($pwrd,CRYPT_STD_DES);
++$i;
}
$i=0;
while ($i<20){
$pwrd=crypt($pwrd,CRYPT_STD_EXT);
++$i;
}