Re: [PATCH] selftests: add TPM 2.0 tests

From: Joey Pabalinas
Date: Tue Nov 27 2018 - 17:53:16 EST


On Tue, Nov 27, 2018 at 12:49:00PM -1000, Joey Pabalinas wrote:
> > + 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?

Nevermind, I keep forgetting that the * operator on strings performs
repetition. I've been programming too much C lately, it seems.

Acked-By: Joey Pabalinas <joeypabalinas@xxxxxxxxx>

--
Cheers,
Joey Pabalinas

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