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Re: Encrypt/decrypt compatibility with Microsoft Crypto API? [message #173942 is a reply to message #173941]

Fri, 13 May 2011 22:27

The Natural Philosoph
Messages: 993
Registered: September 2010

Karma:

Senior Member

Trevor wrote:
> On 5/11/2011 4:15 PM, JohnT wrote:
>
>> When I did something similar, I wrote a C applet to do this.
>> You can't use standard tools because Windows pads the data differently.
>>
>> I used mcrypt with rijndael-128 and cbc
>> Has been working successfully for a number of years.
>>
>> In order to get it to work, I had to do the en/decryption both ways in
>> windows, and keep the data at each step, then replicate the data at the
>> linux side.
>>
>> I think the main issue is that on linux, the data is 0 padded.
>> On windows, the data is padded with a byte containing the length (in
>> bytes) of the padding.
>
> I'm actually running the php site on a Windows server, but it looks like
> the endian-ness may still be an issue.
>
> The Windows program was made with PowerBuilder, and since PowerBuilder
> is able to create .Net assemblies, and PHP is supposed to be able to use
> .Net assemblies, I thought it might be easiest to use the existing code
> and put it in an assembly.
>
> Turns out PHP's support for .Net assemblies is not all that great. Yes,
> the example at php.net for this functionality works, but as stated in
> several stagnant bug reports, other objects within the same mscorlib.dll
> assembly don't even work. Is is correct, as it appears, that development
> on DOTNET has ceased, leaving it not very usable?
>
> This has been one long week, with nothing really to show for it. :(
>
> - Trevor
I fear that is most peoples experience if trying to mix Microsoft with
anything else. It nearly always curdles...;-)

I spent a fruitless hour trying to get Word to understand any document I
could produce 'cant open, out of memory'

Gave up and installed open office on the wife's Mac..

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[Message index]

		Encrypt/decrypt compatibility with Microsoft Crypto API? By: Trevor Holyoak on Wed, 11 May 2011 21:03
		Re: Encrypt/decrypt compatibility with Microsoft Crypto API? By: JohnT on Wed, 11 May 2011 22:15
		Re: Encrypt/decrypt compatibility with Microsoft Crypto API? By: Trevor on Fri, 13 May 2011 22:20
		Re: Encrypt/decrypt compatibility with Microsoft Crypto API? By: The Natural Philosoph on Fri, 13 May 2011 22:27
		Re: Encrypt/decrypt compatibility with Microsoft Crypto API? By: Trevor on Tue, 17 May 2011 17:38

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