Australian Standard AS2805.5 DES encryption

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James Crosswell - 09 Nov 2007 16:00 GMT

Anyone ever had to implement the data encryption algorithm as defined in
the Australian Standards document AS2805.5? I need to use this as part
of the authentication process for a project I'm working on and haven't
had any luck tracking down existing implementations of this...

However it appears it might be one of many names for DES:

http://courses.cs.tamu.edu/pooch/665_spring2007/2006-MATERIAL/Australian-sec-200
6/less08.html

If this is the case then I'm wondering if the Australian Standard
differs from the algorithm implemented by the .NET
DESCryptoServiceProvider. Anyone know the answer to this?

Best Regards,

James Crosswell
Microforge.net LLC
http://www.microforge.net

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James Crosswell - 17 Nov 2007 03:48 GMT

> Anyone ever had to implement the data encryption algorithm as defined in
> the Australian Standards document AS2805.5? I need to use this as part
[quoted text clipped - 8 lines]
> differs from the algorithm implemented by the .NET
> DESCryptoServiceProvider. Anyone know the answer to this?

So it tuns out the DESCryptoServiceProvider can be persuaded to do
this... it needs to be initialized with an initialization vector of
{0,0,0,0,0,0,0,0} and it seems to spit back 16 characters - the first 8
of which correspond to the results of the Australian Standard... god
knows what's going on there but, as it happens, for this particular
project I don't care ;-) Lucky me!

Best Regards,

James Crosswell
Microforge.net LLC
http://www.microforge.net

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Australian Standard AS2805.5 DES encryption

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