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CryptInstallOIDFunctionAddress function

The CryptInstallOIDFunctionAddress function installs a set of callable object identifier (OID) function addresses.

Syntax


BOOL WINAPI CryptInstallOIDFunctionAddress(
  _In_  HMODULE hModule,
  _In_  DWORD dwEncodingType,
  _In_  LPCSTR pszFuncName,
  _In_  DWORD cFuncEntry,
  _In_  CRYPT_OID_FUNC_ENTRY rgFuncEntry[],
  _In_  DWORD dwFlags
);

Parameters

hModule [in]

This parameter is updated with the hModule parameter passed to DllMain to prevent the DLL that contains the function addresses from being unloaded by CryptGetOIDFunctionAddress or CryptFreeOIDFunctionAddress. This would be the case when the DLL has also registered OID functions through CryptRegisterOIDFunction.

dwEncodingType [in]

Specifies the encoding type to be matched. Currently, only X509_ASN_ENCODING and PKCS_7_ASN_ENCODING are being used; however, additional encoding types may be added in the future. To match both current encoding types, use:

X509_ASN_ENCODING | PKCS_7_ASN_ENCODING

pszFuncName [in]

Name of the function set being installed.

cFuncEntry [in]

Number of array elements in rgFuncEntry[].

rgFuncEntry [in]

Array of CRYPT_OID_FUNC_ENTRY structures, each containing an OID and the starting address of its correlated routine.

Default functions are installed by setting the pszOID member of the CRYPT_OID_FUNC_ENTRY structure for their array element to CRYPT_DEFAULT_OID.

dwFlags [in]

By default, a new function set is installed at the end of the list of function sets. Setting the CRYPT_INSTALL_OID_FUNC_BEFORE_FLAG flag installs the function set at the beginning of the list.

Return value

If the function succeeds, the function returns nonzero (TRUE).

If the function fails, it returns zero (FALSE).

Requirements

Minimum supported client

Windows XP [desktop apps only]

Minimum supported server

Windows Server 2003 [desktop apps only]

Header

Wincrypt.h

Library

Crypt32.lib

DLL

Crypt32.dll

See also

OID Support Functions
CRYPT_OID_FUNC_ENTRY

 

 

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