I_IrmCrypt.HrEncrypt Method
Applies to: SharePoint Foundation 2010
Accepts unencrypted data and encrypts that data in place.
HRESULT HrEncrypt(
ULONG ulOffset,
BYTE *pbData,
DWORD cbData,
DWORD *pcbData
) PURE;
Parameters
ulOffset
[in] Where in the block to start the encryption. Generally set to zero unless stream functions are encrypting portions of a block.
pbData
[in/out] The data to be encrypted.
cbData
[in] The amount, in bytes, of data to encrypt.
pcbData
[out] The amount of data that the function was actually able to encrypt. Under normal conditions, this is a DWORD whose value is equal to cbData.
Remarks
In general, this method is not called directly by the IRM protector. Instead, this method is used by a stream operator, also written by the protector’s developer, which facilitates a higher level view of encrypting data.