Changing Key-Spec of a private key in a windows certificate store.

byAlex R. •April 28, 2013
Two key-specs are available for a private key in CSP:
Signature (to sign) and Exchange (ssl sessions - or sign + encryption).
To force a specific key spec we need to import a PFX with certutil using the following parameters:
certutil -importPFX test.pfx AT_SIGNATURE
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Changing Key-Spec of a private key in a windows certificate store.

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