53 lines
1.4 KiB
C
53 lines
1.4 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 "Hash_fp.h"
|
|
TPM_RC
|
|
TPM2_Hash(
|
|
Hash_In *in, // IN: input parameter list
|
|
Hash_Out *out // OUT: output parameter list
|
|
)
|
|
{
|
|
HASH_STATE hashState;
|
|
|
|
// Command Output
|
|
|
|
// Output hash
|
|
// Start hash stack
|
|
out->outHash.t.size = CryptStartHash(in->hashAlg, &hashState);
|
|
// Adding hash data
|
|
CryptUpdateDigest2B(&hashState, &in->data.b);
|
|
// Complete hash
|
|
CryptCompleteHash2B(&hashState, &out->outHash.b);
|
|
|
|
// Output ticket
|
|
out->validation.tag = TPM_ST_HASHCHECK;
|
|
out->validation.hierarchy = in->hierarchy;
|
|
|
|
if(in->hierarchy == TPM_RH_NULL)
|
|
{
|
|
// Ticket is not required
|
|
out->validation.hierarchy = TPM_RH_NULL;
|
|
out->validation.digest.t.size = 0;
|
|
}
|
|
else if( in->data.t.size >= sizeof(TPM_GENERATED)
|
|
&& !TicketIsSafe(&in->data.b))
|
|
{
|
|
// Ticket is not safe
|
|
out->validation.hierarchy = TPM_RH_NULL;
|
|
out->validation.digest.t.size = 0;
|
|
}
|
|
else
|
|
{
|
|
// Compute ticket
|
|
TicketComputeHashCheck(in->hierarchy, in->hashAlg,
|
|
&out->outHash, &out->validation);
|
|
}
|
|
|
|
return TPM_RC_SUCCESS;
|
|
}
|