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Plooscva



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23rd February, 2007 at 07:46:06 -

Well, a good thing to have in a chat is encryption between clients just incase someone connects to the same channel. So basically you send an encrpyted version of waht you would send. When you receive a message you display a decrypted version of what's been sent. I never tried it before and my Moo knowledge is quite poor so before I start doing anything I would like to find out something about it. Can someone give me a some tips, what's better, what not. What extension should I use, what's the simplest way to use the extension and maybe a brief walkthrough.

Plooscva

 
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Tim

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23rd February, 2007 at 08:34:44 -

Isn't that Blowfish extension used for encryption? Look into that? You can also use binary object etc. and MD5.
Thats the extensions / means you could go about doing it using those.

I'll let someone else do the honours of a walkthrough

 
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Silveraura

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23rd February, 2007 at 23:30:16 -

Question though, how might you use blowfish to encrypt strings. I believe you can only encrypt files with it.

 
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Silveraura

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24th February, 2007 at 00:57:11 -

Ah ha, thanks, I didn't think of looking there.

 
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Plooscva



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24th February, 2007 at 03:35:46 -

So it's best to use Blowfish for encrypting messages? Thanks, everyone especially Phizzy. Seems I won't have to modify the code extensively to add blowfish encryption. Any other tips?

Ploo

 
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Phredreeke

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24th February, 2007 at 07:18:11 -

Well, think of what you're gonna use for encryption key. Having the same key for all messages hurts security. Random key generation would be good, but how do you suppose you get the key to the receiver?

 
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Plooscva



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24th February, 2007 at 09:41:35 -

I'm just going to send an encrypted version of what I would send. Then decrypt it when gets to the other client. I will do everything using the same key. I might use different key for different subchannels/commands just to make it harder but noone would really be desperate to hack my small gift for the Polish Klik Community.

Plooscva

 
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David Newton (DavidN)

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24th February, 2007 at 15:22:07 -

In this case, a deterrent like that's probably enough.

 
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Wicked Studios



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27th February, 2007 at 20:05:45 -

instead of going through the trouble of encrypting everything with the same key, why don't you just tell everyone its encrypted? same thing, less work, right?

 
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Silveraura

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27th February, 2007 at 22:16:50 -

You could also set up a method to where theres a list of keys, have the server hold a value, and people receive that value. That value will choose which key is used for each message, based on a list of keys. Every so often, or even after each message, the value changes and thus the key used to encrypt/decrypt the message, will change too.

 
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Del Duio

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1st March, 2007 at 16:46:22 -

I had problems with Blowfish the one time I tried to use it. It made MMF crash every time. That's why my MMF programs with external files are so easy to exploit!

 
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