CardRSADecrypt function
This topic is not current. For the most current information about the Smart Card API, see Smart Card Minidriver Specification.
The CardRSADecrypt function, defined by a smart card module, performs an RSA decryption of the specified data by using the specified private key. The decryption operation must be for a single data buffer of the same size as the key modulus.
Syntax
DWORD WINAPI CardRSADecrypt(
_In_ PCARD_DATA pCardData,
_Inout_ PCARD_RSA_DECRYPT_INFO pInfo
);
Parameters
-
pCardData [in]
-
A pointer to a CARD_DATA structure received from a call to the CardAcquireContext function.
-
pInfo [in, out]
-
A pointer to a CARD_RSA_DECRYPT_INFO structure that specifies the data to decrypt and the private key to use for the decryption. On output, the structure contains the decrypted data.
Return value
If the function succeeds, the function returns zero.
If the function fails, it returns a nonzero error value or one of the following possible error values.
| Return code/value | Description |
|---|---|
|
The pbData member of the pInfo parameter is not of sufficient size. |
Remarks
Card modules that support only elliptic curve cryptography (ECC), do not implement this function.
Requirements
| Minimum supported client |
Windows XP [desktop apps only] |
| Minimum supported server |
Windows Server 2003 [desktop apps only] |
| Header |
|