Question

I have my certrequest as a PEM base64 data. See data below.

1) My understanding is that this is an ASCII data type and not in
UNICODE format. Please clarify.

—–BEGIN NEW CERTIFICATE REQUEST—–
MIIBTjCBuAIBADARMQ8wDQYDVQQDEwZ3dTAwMzEwgZ0wDQYJKoZIhvcNAQEBBQAD
gYsAMIGHAoGBAKP48eljetv3fVicT6g6hKjmLpsySJaZ/NnepEJEqtQQNbwsluhW
yWxhHWzPoNPV9uqjZBW7EnqYjxyPp1A0vOK35uxmmcNrgmuSjO1WBkD0YVZwzh2u
OovRCOwJKklQtJnQWoM+yT8CyBVk7raVJOrLDMC8FR5AMknVCIlt7HppAgEDoAAw
DQYJKoZIhvcNAQEFBQADgYEAAK5G10e39GxiNiPXdrOAwtuIiLd1UTWn3VYY7nYY
74LhydUBjo0Xi6HBTTNVlPNoRB9GOe5P1Qgq0EJ6gLIriFY+Gxdl2Y4lSo7FmpxB
+87bRCLpC3mxQltNm97ZysmS4I4diYhPDSS/2acKeH2cBgAtQVG9KsuZ41qxUQ10
EY8=
—–END NEW CERTIFICATE REQUEST—–

2) If the above data is in ASCII, how can i convert it to BSTR, as
ICertRequest2::Submit requires the data to be unicode string.

3) Can i convert the ASCII data directly to BSTR

Thanks
Raj

Answer 1

Either:

1. Use MultiByteToWideChar before calling SysAllocString (or SysAllocStringLen)

2. Use _bstr_t or CComBSTR which are C++ wrappers for BSTRs.