keyAttributes
A word of bits constituting the low-level attribute flags for imported keys.
Declaration
var keyAttributes: CSSM_KEYATTR_FLAGSDiscussion
The default value is CSSM_KEYATTR_SENSITIVE | CSSM_KEYATTR_EXTRACTABLE; the CSSM_KEYATTR_PERMANENT bit is also added to the default if a non-NULL value is specified for the importKeychain parameter.
The following are valid values for these flags: CSSM_KEYATTR_PERMANENT, CSSM_KEYATTR_SENSITIVE, and CSSM_KEYATTR_EXTRACTABLE.
If the CSSM_KEYATTR_PERMANENT bit is set, the importKeychain parameter is not valid, and if any keys are found in the external representation, then the error errSecInvalidKeychain is returned.
The CSSM_KEYATTR_SENSITIVE bit indicates that the key can only be extracted in wrapped form.
The CSSM_KEYATTR_FLAGS enumeration is defined in cssmtype.h. Note that the CSSM_KEYATTR_RETURN_xxx bits are always forced to CSSM_KEYATTR_RETURN_REF regardless of how they are specified in the keyAttributes field.