Use correct CNG-key value for 'dwKeySpec' when setting key provider info#1062
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darkfronza
previously approved these changes
Jun 24, 2026
hslatman
previously approved these changes
Jun 24, 2026
hslatman
reviewed
Jun 24, 2026
| flags |= CRYPT_MACHINE_KEYSET | ||
| } | ||
| if err := setCertificateKeyProvInfo(certContext, u.keyContainerName, u.providerName, flags, ncryptKeySpec); err != nil { | ||
| if err := setCertificateKeyProvInfo(certContext, u.keyContainerName, u.providerName, flags, LEGACY_KEY_SPEC_NONE); err != nil { |
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Minor, but the comment on setCertificateKeyProvInfo refers to CERT_NCRYPT_KEY_SPEC. That could be updated to refer to LEGACY_KEY_SPEC_NONE.
hslatman
approved these changes
Jun 24, 2026
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When the
dwProvTypemember is0(which is the case for CNG keys), this value is passed as thedwLegacyKeySpecparameter to theNCryptOpenKeyfunction. The correctdwLegacyKeySpecvalue for non-legacy CNG keys is0.https://learn.microsoft.com/en-us/windows/win32/api/wincrypt/ns-wincrypt-crypt_key_prov_info
💔Thank you!