[DUG] Encryption / Decrption

Conor Boyd Conor.Boyd at trimble.co.nz
Tue Jul 11 12:06:30 NZST 2006


No problems.

Is your app going to be doing both the encrypting and decrypting at
either end?

Because if it's not (and the recipient of the encrypted data is using
some other standard PKI tool to decrypt the data), then you are going to
have to look at certificates and how your app manages them.

Good luck.

Cheers,

Conor

-----Original Message-----
From: delphi-bounces at ns3.123.co.nz [mailto:delphi-bounces at ns3.123.co.nz]
On Behalf Of Robert martin

Thanks Conor

I am looking at building it into a shipping app so this seems like a bit
of a no go.  But thanks for the info :)

Conor Boyd wrote:
> Yes, MS does provide a crypto API on most Windows platforms, exposed 
> as a COM DLL (known as CAPICOM).  It's based around Certificate 
> Services, which you can configure using MMC (Microsoft Management
Console?).
>
> To configure Certificate Services, run MMC from the command line, 
> choose File, Add/Remove Snap-in, hit the Add button, choose 
> Certificates, click OK.
>
> But you'll then have to go away and read up on certificates, and how 
> to use the Crypto API, etc.  Googling should get you a long way there.
>
> Here are a few links to get you started:
> http://msdn.microsoft.com/library/default.asp?url=/library/en-us/seccr
> yp
> to/security/using_capicom.asp
> http://msdn.microsoft.com/library/default.asp?url=/library/en-us/seccr
> yp
> to/security/cryptography_objects.asp
> http://www.awprofessional.com/articles/article.asp?p=31065&seqNum=1
> http://www.seifried.org/security/cryptography/crypto-book/index.html



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