90 lines
3.2 KiB
C
90 lines
3.2 KiB
C
// 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 "CertifyCreation_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_TICKET creationTicket does not match objectHandle
|
|
// 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_CertifyCreation(
|
|
CertifyCreation_In *in, // IN: input parameter list
|
|
CertifyCreation_Out *out // OUT: output parameter list
|
|
)
|
|
{
|
|
TPM_RC result;
|
|
TPM2B_NAME name;
|
|
TPMT_TK_CREATION ticket;
|
|
TPMS_ATTEST certifyInfo;
|
|
|
|
// Input Validation
|
|
|
|
// CertifyCreation specific input validation
|
|
// Get certified object name
|
|
name.t.size = ObjectGetName(in->objectHandle, &name.t.name);
|
|
// Re-compute ticket
|
|
TicketComputeCreation(in->creationTicket.hierarchy, &name,
|
|
&in->creationHash, &ticket);
|
|
// Compare ticket
|
|
if(!Memory2BEqual(&ticket.digest.b, &in->creationTicket.digest.b))
|
|
return TPM_RC_TICKET + RC_CertifyCreation_creationTicket;
|
|
|
|
// Command Output
|
|
// 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_CertifyCreation_signHandle;
|
|
else
|
|
return RcSafeAddToResult(result, RC_CertifyCreation_inScheme);
|
|
}
|
|
|
|
// CertifyCreation specific fields
|
|
// Attestation type
|
|
certifyInfo.type = TPM_ST_ATTEST_CREATION;
|
|
certifyInfo.attested.creation.objectName = name;
|
|
|
|
// Copy the creationHash
|
|
certifyInfo.attested.creation.creationHash = in->creationHash;
|
|
|
|
// 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 at
|
|
// this point
|
|
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;
|
|
}
|