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CertGetPublicKeyLength

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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 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

BLOB

 Last updated on Thursday, April 08, 2004

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