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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 |
|---|---|
| SCARD_E_INSUFFICIENT_BUFFER 21485322310x80100007 | 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, Windows 2000 Professional with SP4 |
| Minimum supported server | Windows Server 2003, Windows 2000 Server with SP4 |
| Header | Cardmod.h |
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Build date: 3/5/2009