I'm a student in internship and one of my tasks is to PROVE that : 1) when we create a key via "create_tpm_key.c" (from the libengine-openssl), it's really generated from the TPM and inside the TPM 2) and that the SRK and the key - during it's creation 1) - are not visible/readable in memory (I guess mutex is not enough?)
My config : - TrouSerS 0.3.13 - Ubuntu desktop 14.04 64bits - libengine-tpm-openssl-0.4.1+20071221 - OpenSSL 0.9.8zg 11 Jun 2015 For the first point, I follow the call hierarchy/tree of the sourcecode (with the help of http://sourcecodebrowser.com/trousers/0.3.1/ ,sometimes not complete for my version), and the main calls are : "create_tpm_key.c" -> calls Tspi_Key_CreateKey -> calls TCS_API(tspContext)->CreateWrapKey(...) CreateWrapKey is RPC_CreateWrapKey or Transport_CreateWrapKey, am I right? I didn't really understand what they means (juste RPC for RemoteProcedureCall?), but found that both call "sendTCSDPacket" And then data are send and receive with socket?? where/when is the TPM introduced? I didn't find when/where we ask the TPM to generate a key... I find another function "tcs_wrap_CreateWrapKey" in /src/tcs/rpc/tcstp/rpc_key.c, which calls TCSP_CreateWrapKey_Internal This function calls the Tddli_TransmitData, so there I see the link with the TPM (the "transmit" argument : TDDL_TRANSMIT_IOCTL is for I/O, but what about TDDL_TRANSMIT_RW?) But I didn't find when the tcs_wrap_CreateWrapKey is used. If anybody can help me... (and sorry for my english) Thank's a lot. J.
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