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40
41 /*
42 //
43 // Purpose:
44 // Cryptography Primitive.
45 // Security Hash Standard
46 // General Functionality
47 //
48 // Contents:
49 // cpInitHash()
50 //
51 */
52
53 #include "owndefs.h"
54 #include "owncp.h"
55 #include "pcphash.h"
56 #include "pcphash_func.h"
57 #include "pcptool.h"
58
cpInitHash(IppsHashState * pCtx,IppHashAlgId algID)59 int cpInitHash(IppsHashState* pCtx, IppHashAlgId algID)
60 {
61 /* setup default processing function */
62 HASH_FUNC(pCtx) = cpHashProcFunc[algID];
63
64 /* update default processing function if SHA-NI enabled */
65 #if (_IPP>=_IPP_P8) || (_IPP32E>=_IPP32E_Y8)
66 if( IsFeatureEnabled(ippCPUID_SHA) ) {
67
68 #if defined(_ENABLE_ALG_SHA1_)
69 if(ippHashAlg_SHA1==algID)
70 HASH_FUNC(pCtx) = UpdateSHA1ni;
71 #endif
72
73 #if defined(_ENABLE_ALG_SHA256_) || defined(_ENABLE_ALG_SHA224_)
74 if(ippHashAlg_SHA256==algID || ippHashAlg_SHA224==algID)
75 HASH_FUNC(pCtx) = UpdateSHA256ni;
76 #endif
77 }
78 #endif
79
80 /* setup optional agr of processing function */
81 HASH_FUNC_PAR(pCtx) = cpHashProcFuncOpt[algID];
82
83 return cpReInitHash(pCtx, algID);
84 }
85