The default length for the Enhanced Provider is bits. Thus the Enhanced Provider cannot create keys with Base Provider-compatible key lengths. Therefore, the Enhanced Provider can import and use 40 bit keys generated using the Base Provider. Skip to main content.
This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. NET framework 4. This looks like a programming question. I would suggest to address your issue on StackOverflow. My thought is if a client requesting a certificate via SCEP can utilize this CSP locally it would be a more secure local storage option? Therefore could it be worthwhile selecting more or more additional CSPs, so a client can use their preferred one and if it does not support it will simply use one of the other on the list it does support like the default one?
Many of the list providers are incompatible with one or more desired settings in the template. So its possible for you to select a provider that could be used by a client but result in an incompatible request.
Is the idea to try and enforce some good practice by trying to tell the client please only use these CSPs as they are better?
However, in some cases the CA will care — such as if the intent of a certificate is to be used for Smartcard authentication, the CA would want to instruct the client to use a Smartcard, or a TPM.
So in that case the CA can use the provider list in the template to indicate to the client which provider to use.
Ultimately the client will choose which to use. Thank you folks. Had the issue, that my application did not like sha1. I do not understand, why my self-signed certificates working fine, if vpn is setup to use user certs. These types of crypto compatibilities issues are driven by specific vendor implementations. If I want to reduce the number of times a user is prompted for the smart card PIN, would I need to look at Crypto providers?
I am trying to narrow down where to look. I cannot see it being controlled by GPO anywhere. This is called Pin caching and can usually be managed through the smartcard mini driver if you are using a third party or may have some limited capabilities in GPO. Hi, thanks for your prompt reply — its by yubikey.
I just wanted to confirm if possible that pin caching is not dependent of the crypto that is chosed — in my case the Smart card one you have in the CNG section. Do you have documentation to substantiate that claim? Where would you store the key of a root or intermediate certificate key-pair? Microsoft has many products and features that get deprecated and simply means they are no longer being updated, developed, or having new improvements. So you can continue to use the deprecated CSP without issue, but other than security related fixes, it will not have any future development to it.
Save my name, email, and website in this browser for the next time I comment. This site uses Akismet to reduce spam. Learn how your comment data is processed. Username or Email Address. Remember Me. No 3DES support. Communicates with Smart Card Modules minidriver. Derivative of Microsoft Enchanced Cryptographic Provider. Supports all the same key lengths, but lacks configurable Salt length for RC encryption algorithms.
The Enhanced Provider supports stronger security through longer keys and additional algorithms. Mario Alvares on March 9, at pm. Thanks for your insight, Mark. Thanks, Mario. Mario Alvares on March 12, at pm. Mario Alvares on March 19, at pm. SS on July 12, at am. Mark B. ND on October 29, at am. Thank you, ND. Luke on April 1, at pm. Thanks, actually it was row 3 that was the incorrect line item so I removed it.
This API is deprecated. Microsoft may remove this API in future releases. A cryptographic service provider CSP contains implementations of cryptographic standards and algorithms. Most CSPs contain the implementation of all of their own functions.
Some CSPs, however, implement their functions mainly in a Windows-based service program managed by the Windows service control manager. Others implement functions in hardware, such as a smart card or secure coprocessor. If a CSP does not implement its own functions, the DLL acts as a pass-through layer, facilitating the communication between the operating system and the actual CSP implementation.
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