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This function acquires the bit length of public/private keys from a public key BLOB.
DWORD WINAPI CertGetPublicKeyLength(DWORDdwCertEncodingType,PCERT_PUBLIC_KEY_INFOpPublicKey);
Parameters
- dwCertEncodingType
[in] Specifies the encoding type used. Currently, only X509_ASN_ENCODING is used; however, additional encoding types may be added in the future. - pPublicKey
[in] Pointer to the public key BLOB containing the keys for which the length is being retrieved.
Return Values
Returns the length of the public/private keys in bits. If unable to determine the key's length, returns zero.
For extended error information, call the GetLastError function.
Remarks
The desktop operating system supports the flag PKCS_7_ASN_ENCODING, but Windows CE does not and ignores the flag when it is specified.
Requirements
OS Versions: Windows CE 3.0 and later.
Header: Wincrypt.h.
Link Library: Crypt32.lib.
See Also
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