On Tue, Nov 27, 2018 at 02:10:48PM -0800, Jarkko Sakkinen wrote: > Added the tests that I've been using for testing TPM 2.0 functionality > for long time but have out-of-tree so far residing in > > https://github.com/jsakkine-intel/tpm2-scripts > > Cc: Tadeusz Struk <tadeusz.struk@xxxxxxxxx> > Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx> Just one thing I didn't really understand: > + def start_auth_session(self, session_type, name_alg = TPM2_ALG_SHA1): > + fmt = '>HII IIH16sHBHH' > + cmd = struct.pack(fmt, > + TPM2_ST_NO_SESSIONS, > + struct.calcsize(fmt), > + TPM2_CC_START_AUTH_SESSION, > + TPM2_RH_NULL, > + TPM2_RH_NULL, > + 16, > + '\0' * 16, > + 0, > + session_type, > + TPM2_ALG_NULL, > + name_alg) > + > + return struct.unpack('>I', self.send_cmd(cmd)[10:14])[0] > + > + def __calc_pcr_digest(self, pcrs, bank_alg = TPM2_ALG_SHA1, > + digest_alg = TPM2_ALG_SHA1): > + x = [] Is there a reason for using `'\0' * 16` there instead of just 0? -- Cheers, Joey Pabalinas
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