ISmimeCapability::get_BitCount method (certenroll.h)

Article
02/22/2024

The BitCount property retrieves the length, in bits, of the encryption key.

This property is read-only.

Syntax

HRESULT get_BitCount(
  LONG *pValue
);

Parameters

pValue

Return value

None

Remarks

Call the Initialize method to specify the BitCount property. The following symmetric encryption algorithms and key lengths are supported by the Certificate Enrollment API.

OID	Key Length
XCN_OID_OIWSEC_desCBC1.3.14.3.2.7	56
XCN_OID_RSA_DES_EDE3_CBC1.2.840.113549.3.7	168
XCN_OID_RSA_RC2CBC1.2.840.113549.3.2	40 to 128
XCN_OID_RSA_RC41.2.840.113549.3.4	40 to 128
XCN_OID_RSA_SMIMEalgCMS3DESwrap1.2.840.113549.1.9.16.3.6	168
XCN_OID_RSA_SMIMEalgCMSRC2wrap1.2.840.113549.1.9.16.3.7	128
XCN_OID_NIST_AES128_CBC2.16.840.1.101.3.4.1.2	128
XCN_OID_NIST_AES192_CBC2.16.840.1.101.3.4.1.22	192
XCN_OID_NIST_AES256_CBC2.16.840.1.101.3.4.1.42	256
XCN_OID_NIST_AES128_WRAP2.16.840.1.101.3.4.1.5	128
XCN_OID_NIST_AES192_WRAP2.16.840.1.101.3.4.1.25	192
XCN_OID_NIST_AES256_WRAP2.16.840.1.101.3.4.1.45	256

Requirements

Requirement	Value
Minimum supported client	Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2008 [desktop apps only]
Target Platform	Windows
Header	certenroll.h
DLL	CertEnroll.dll