OSSL_STORE-winstore.7ossl - Man Page

There is only one supported URI:

  org.openssl.winstore:

No authority (host, etc), no path, no query, no fragment.

OSSL_STORE_SEARCH_by_name(3)

As a matter of fact, this must be used.  It is not possible to enumerate all available certificates in the store.

Apart from diverse constraints present in the certificates themselves, the Windows certificate store also has the ability to associate additional constraining properties alongside a certificate in the store. This includes both documented and undocumented capabilities:

• The documented capability to override EKU
• The undocumented capability to add name constraints
• The undocumented capability to override the certificate expiry date

Such constraints are not checked by this OSSL_STORE implementation, and thereby not honoured.

However, once extracted with OSSL_STORE_load(3), certificates that have constraints in their X.509 extensions will go through the usual constraint checks when used by OpenSSL, and are thereby honoured.