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Re: How to - PKCS#7 in c#Thanks for the reply. But can you tell me if PKCS #7 is used only for
signing the message or is it also used to encrypt the message before signing it? Can you point me to some examples where the above is done? Thanks in adavance. You can create all sorts of different types of CMS (PKCS#7) messages with
these functions, including signed, enveloped (encrypted), etc. If you aren't really familiar with how CMS works in general, you might want to read up on it a little more. Joe K. -- Show quoteHide quoteJoe Kaplan-MS MVP Directory Services Programming Co-author of "The .NET Developer's Guide to Directory Services Programming" http://www.directoryprogramming.net -- "kplkumar" <kplku***@gmail.com> wrote in message news:1151686484.912974.234580@y41g2000cwy.googlegroups.com... > Thanks for the reply. But can you tell me if PKCS #7 is used only for > signing the message or is it also used to encrypt the message before > signing it? > > Can you point me to some examples where the above is done? > > Thanks in adavance. > hi,
a sample that signs and encrypts files: http://www.leastprivilege.com/CrypterPKRTMVersion.aspx --------------------------------------- Dominick Baier - DevelopMentor http://www.leastprivilege.com Show quoteHide quote > You can create all sorts of different types of CMS (PKCS#7) messages > with these functions, including signed, enveloped (encrypted), etc. > > If you aren't really familiar with how CMS works in general, you might > want to read up on it a little more. > > Joe K. > Thanks Dominic.
At this time, we don't want to use certificates. I want to use public/private key. All I want is to encrypt the string message using RSA+PKCS#7 and then add a another layer of digital signing to the encrupted messahe using the same and send it out. I am not able to get this going using the System.Security.Cryptography.Pkcs namespace. I poked around quite a bit in vain. Can someone help me here? Some code would be really helpful. Thanks in advance. I think enveloped CMS is intended for use without certificates. All of the
recipient and signer classes seem to expect certificates here. You might be better off finding a different library that does support this (assuming that CMS actually supports this use case; I'm not sure), or perhaps rolling your own format that encrypts, then signs. Why the reluctance to use certificates though? Best of luck, Joe K. -- Show quoteHide quoteJoe Kaplan-MS MVP Directory Services Programming Co-author of "The .NET Developer's Guide to Directory Services Programming" http://www.directoryprogramming.net -- "kplkumar" <kplku***@gmail.com> wrote in message news:1152636653.070488.248800@75g2000cwc.googlegroups.com... > Thanks Dominic. > > At this time, we don't want to use certificates. I want to use > public/private key. > All I want is to encrypt the string message using RSA+PKCS#7 and then > add a another layer of digital signing to the encrupted messahe using > the same and send it out. > > I am not able to get this going using the > System.Security.Cryptography.Pkcs namespace. I poked around quite a bit > in vain. > > Can someone help me here? Some code would be really helpful. Thanks in > advance. > 
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