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// This file was extracted from the TCG Published
// Trusted Platform Module Library
// Part 3: Commands
// Family "2.0"
// Level 00 Revision 01.16
// October 30, 2014
#include "InternalRoutines.h"
#include "Attest_spt_fp.h"
#include "Certify_fp.h"
//
//
// Error Returns Meaning
//
// TPM_RC_KEY key referenced by signHandle is not a signing key
// TPM_RC_SCHEME inScheme is not compatible with signHandle
// TPM_RC_VALUE digest generated for inScheme is greater or has larger size than the
// modulus of signHandle, or the buffer for the result in signature is too
// small (for an RSA key); invalid commit status (for an ECC key with a
// split scheme).
//
TPM_RC
TPM2_Certify(
Certify_In *in, // IN: input parameter list
Certify_Out *out // OUT: output parameter list
)
{
TPM_RC result;
TPMS_ATTEST certifyInfo;
// Command Output
// Filling in attest information
// Common fields
result = FillInAttestInfo(in->signHandle,
&in->inScheme,
&in->qualifyingData,
&certifyInfo);
if(result != TPM_RC_SUCCESS)
{
if(result == TPM_RC_KEY)
return TPM_RC_KEY + RC_Certify_signHandle;
else
return RcSafeAddToResult(result, RC_Certify_inScheme);
}
// Certify specific fields
// Attestation type
certifyInfo.type = TPM_ST_ATTEST_CERTIFY;
// Certified object name
certifyInfo.attested.certify.name.t.size =
ObjectGetName(in->objectHandle,
&certifyInfo.attested.certify.name.t.name);
// Certified object qualified name
ObjectGetQualifiedName(in->objectHandle,
&certifyInfo.attested.certify.qualifiedName);
// Sign attestation structure. A NULL signature will be returned if
// signHandle is TPM_RH_NULL. A TPM_RC_NV_UNAVAILABLE, TPM_RC_NV_RATE,
// TPM_RC_VALUE, TPM_RC_SCHEME or TPM_RC_ATTRIBUTES error may be returned
// by SignAttestInfo()
result = SignAttestInfo(in->signHandle,
&in->inScheme,
&certifyInfo,
&in->qualifyingData,
&out->certifyInfo,
&out->signature);
// TPM_RC_ATTRIBUTES cannot be returned here as FillInAttestInfo would already
// have returned TPM_RC_KEY
pAssert(result != TPM_RC_ATTRIBUTES);
if(result != TPM_RC_SUCCESS)
return result;
// orderly state should be cleared because of the reporting of clock info
// if signing happens
if(in->signHandle != TPM_RH_NULL)
g_clearOrderly = TRUE;
return TPM_RC_SUCCESS;
}
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