Line | Count | Source |
1 | | // This file was extracted from the TCG Published |
2 | | // Trusted Platform Module Library |
3 | | // Part 3: Commands |
4 | | // Family "2.0" |
5 | | // Level 00 Revision 01.16 |
6 | | // October 30, 2014 |
7 | | |
8 | | #include "InternalRoutines.h" |
9 | | #include "Hash_fp.h" |
10 | | TPM_RC |
11 | | TPM2_Hash( |
12 | | Hash_In *in, // IN: input parameter list |
13 | | Hash_Out *out // OUT: output parameter list |
14 | | ) |
15 | 0 | { |
16 | 0 | HASH_STATE hashState; |
17 | | |
18 | | // Command Output |
19 | | |
20 | | // Output hash |
21 | | // Start hash stack |
22 | 0 | out->outHash.t.size = CryptStartHash(in->hashAlg, &hashState); |
23 | | // Adding hash data |
24 | 0 | CryptUpdateDigest2B(&hashState, &in->data.b); |
25 | | // Complete hash |
26 | 0 | CryptCompleteHash2B(&hashState, &out->outHash.b); |
27 | | |
28 | | // Output ticket |
29 | 0 | out->validation.tag = TPM_ST_HASHCHECK; |
30 | 0 | out->validation.hierarchy = in->hierarchy; |
31 | |
|
32 | 0 | if(in->hierarchy == TPM_RH_NULL) |
33 | 0 | { |
34 | | // Ticket is not required |
35 | 0 | out->validation.hierarchy = TPM_RH_NULL; |
36 | 0 | out->validation.digest.t.size = 0; |
37 | 0 | } |
38 | 0 | else if( in->data.t.size >= sizeof(TPM_GENERATED) |
39 | 0 | && !TicketIsSafe(&in->data.b)) |
40 | 0 | { |
41 | | // Ticket is not safe |
42 | 0 | out->validation.hierarchy = TPM_RH_NULL; |
43 | 0 | out->validation.digest.t.size = 0; |
44 | 0 | } |
45 | 0 | else |
46 | 0 | { |
47 | | // Compute ticket |
48 | 0 | TicketComputeHashCheck(in->hierarchy, in->hashAlg, |
49 | 0 | &out->outHash, &out->validation); |
50 | 0 | } |
51 | |
|
52 | 0 | return TPM_RC_SUCCESS; |
53 | 0 | } |