Re: Encryption > access denied after importing key with Certificate

From: Robert Gu [MS] (robertg@online.microsoft.com)
Date: 09/24/02 

From: "Robert Gu [MS]" <robertg@online.microsoft.com>
Date: Mon, 23 Sep 2002 21:42:19 -0700

The notes looked OK to me. Win2K and XP has no way to decrypt AES256
encrypted by XP SP1. We don't have any plan to support AES 256 EFS in XP-
OS. EFS uses static link to support content encryption. It has nothing to do
with CSP in fact. Only the content key encryption (RSA) uses CSP. 

--
This posting is provided "AS IS" with no warranties, and confers no rights.
Robert Gu [MS Security Developer]
"martin" <martin_26@optusnet.com.au> wrote in message
news:606701c26373$b65185a0$37ef2ecf@TKMSFTNGXA13...
> Hi Robert,
>
>     I came across this conversation on a win2000 security
> newsgroup date "Sept 11 2002 {Does Enhanced CSP support
> AES) ...these are the notes
>
> I'd like to know if the MS Enhanced Provider does support
> the AES symetric algo(using PROV_RSA_AES type?) and if not
> which CSP does support it? Thanks Eric
>
> Reply >
> There is an AES provider type that ships in Windows .NET
> in the Microsoft CSPs - but this is not available on
> current platforms
>
>
> so there is no chance to use AES algo onto Win2k system?
>
> Reply >
>
> Not using the Microsoft CSPs currently, no.
>
>
> So on reading this am i right to assume that seen as how
> XP SP1 uses AES 256 & win2k DOES not ..obviously they are
> incompatible ?

Relevant Pages

  • Re: EFS and Smart Card
    ... the number one is that a CSP cannot prompt for a PIN since the lsass ... Other issues are for remote server encryption - ... the server has no way to access the key on the card which is on the client. ... There are many others, as I mentioned, we would like to support this in the ...
    (microsoft.public.windowsxp.security_admin)
  • Re: EFS and Smart Card
    ... the number one is that a CSP cannot prompt for a PIN since the lsass ... Other issues are for remote server encryption - ... the server has no way to access the key on the card which is on the client. ... There are many others, as I mentioned, we would like to support this in the ...
    (microsoft.public.win2000.security)
  • Re: EFS and Smart Card
    ... the number one is that a CSP cannot prompt for a PIN since the lsass ... Other issues are for remote server encryption - ... the server has no way to access the key on the card which is on the client. ... There are many others, as I mentioned, we would like to support this in the ...
    (microsoft.public.security)
  • RE: Web app security
    ... to make the.NET AES encryption to work together with the AES encryption ... BTW, in your code, you first use Unicode Encoding to convert string to ... Microsoft MSDN Online Support Lead ...
    (microsoft.public.dotnet.framework.aspnet)
  • Re: Web app security
    ... public static string EncryptToBase64String(string stringToEncrypt, ... we'd also like to move on to better encryption such ... to make the.NET AES encryption to work together with the AES encryption ... Microsoft MSDN Online Support Lead ...
    (microsoft.public.dotnet.framework.aspnet)