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40
41 /*
42 //
43 // Purpose:
44 // Cryptography Primitive.
45 // SHA512 message digest
46 //
47 // Contents:
48 // InitSHA512()
49 //
50 */
51
52 #include "owndefs.h"
53 #include "owncp.h"
54 #include "pcphash.h"
55 #include "pcphash_rmf.h"
56 #include "pcptool.h"
57 #include "pcpsha512stuff.h"
58
InitSHA512(IppsSHA512State * pState,const DigestSHA512 IV)59 IppStatus InitSHA512(IppsSHA512State* pState, const DigestSHA512 IV)
60 {
61 /* test state pointer */
62 IPP_BAD_PTR1_RET(pState);
63 pState = (IppsSHA512State*)( IPP_ALIGNED_PTR(pState, SHA512_ALIGNMENT) );
64
65 /* set state ID */
66 HASH_CTX_ID(pState) = idCtxSHA512;
67 /* zeros message length */
68 HASH_LENLO(pState) = 0;
69 HASH_LENHI(pState) = 0;
70 /* message buffer is free */
71 HAHS_BUFFIDX(pState) = 0;
72 /* setup initial digest */
73 hashInit(HASH_VALUE(pState), IV);
74
75 return ippStsNoErr;
76 }
77