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Question:

Specify signed attributes in PKCS7 signature

Aug 09 '17 at 12:22

Hi, I am working on a SCEP client for iOS and for requesting a certificate I need signed PKCS7 data. To sign a request I am using the crypt.createP7M method, which is working fine. However, SCEP requires to add some additional signed attributes:

https://tools.ietf.org/html/draft-nourse-scep-17#section-4.2

How can I add signed (authenticated) attributes to the signature? Is that even possible with Chilkat? Or can I somehow create a PKCS7 signature manually with the additional attributes?

Thx, Nicolas


Answer

Unfortunately, at this date/time (9-Aug-2017) Chilkat does not have the requested functionality. It's not something planned for near-term implementation.