CertGetPublicKeyLength

  • Article

This function acquires the bit length of public/private keys from a public key BLOB.

DWORD WINAPI CertGetPublicKeyLength(
DWORD dwCertEncodingType,
PCERT_PUBLIC_KEY_INFO pPublicKey
);

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 platform supports the PKCS_7_ASN_ENCODING flag, but Windows CE does not. Windows CE ignores the flag when it is specified.

Requirements

Runs on Versions Defined in Include Link to
Windows CE OS 3.0 or later Wincrypt.h   Crypt32.lib

Note   This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.

See Also

BLOB

 Last updated on Tuesday, July 13, 2004

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