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1 /*******************************************************************************
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40 
41 /*
42 //
43 //  Purpose:
44 //     Cryptography Primitive.
45 //     Digesting message according to SHA256
46 //
47 //  Contents:
48 //        ippsSHA224Final()
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 "pcpsha256stuff.h"
58 
59 /*F*
60 //    Name: ippsSHA224Final
61 //
62 // Purpose: Stop message digesting and return digest.
63 //
64 // Returns:                Reason:
65 //    ippStsNullPtrErr        pMD == NULL
66 //                            pState == NULL
67 //    ippStsContextMatchErr   pState->idCtx != idCtxSHA256
68 //    ippStsNoErr             no errors
69 //
70 // Parameters:
71 //    pMD         address of the output digest
72 //    pState      pointer to the SHA224 state
73 //
74 *F*/
75 
76 IPPFUN(IppStatus, ippsSHA224Final,(Ipp8u* pMD, IppsSHA224State* pState))
77 {
78    /* test state pointer and ID */
79    IPP_BAD_PTR1_RET(pState);
80    pState = (IppsSHA256State*)( IPP_ALIGNED_PTR(pState, SHA256_ALIGNMENT) );
81    IPP_BADARG_RET(idCtxSHA256 !=HASH_CTX_ID(pState), ippStsContextMatchErr);
82 
83    /* test digest pointer */
84    IPP_BAD_PTR1_RET(pMD);
85 
86    cpFinalizeSHA256(HASH_VALUE(pState), HASH_BUFF(pState), HAHS_BUFFIDX(pState), HASH_LENLO(pState));
87    /* convert hash into big endian */
88    ((Ipp32u*)pMD)[0] = ENDIANNESS32(HASH_VALUE(pState)[0]);
89    ((Ipp32u*)pMD)[1] = ENDIANNESS32(HASH_VALUE(pState)[1]);
90    ((Ipp32u*)pMD)[2] = ENDIANNESS32(HASH_VALUE(pState)[2]);
91    ((Ipp32u*)pMD)[3] = ENDIANNESS32(HASH_VALUE(pState)[3]);
92    ((Ipp32u*)pMD)[4] = ENDIANNESS32(HASH_VALUE(pState)[4]);
93    ((Ipp32u*)pMD)[5] = ENDIANNESS32(HASH_VALUE(pState)[5]);
94    ((Ipp32u*)pMD)[6] = ENDIANNESS32(HASH_VALUE(pState)[6]);
95 
96    /* re-init hash value */
97    HAHS_BUFFIDX(pState) = 0;
98    HASH_LENLO(pState) = 0;
99    sha224_hashInit(HASH_VALUE(pState));
100 
101    return ippStsNoErr;
102 }
103