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40
41 /*
42 //
43 // Purpose:
44 // Cryptography Primitive.
45 // SHA512 message digest
46 //
47 // Contents:
48 // cpSHA512MessageDigest()
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
cpSHA512MessageDigest(DigestSHA512 hash,const Ipp8u * pMsg,int msgLen,const DigestSHA512 IV)59 IppStatus cpSHA512MessageDigest(DigestSHA512 hash, const Ipp8u* pMsg, int msgLen, const DigestSHA512 IV)
60 {
61 /* test digest pointer */
62 IPP_BAD_PTR1_RET(hash);
63 /* test message length */
64 IPP_BADARG_RET((msgLen<0), ippStsLengthErr);
65 /* test message pointer */
66 IPP_BADARG_RET((msgLen && !pMsg), ippStsNullPtrErr);
67
68 {
69 /* message length in the multiple MBS and the rest */
70 int msgLenBlks = msgLen & (-MBS_SHA512);
71 int msgLenRest = msgLen - msgLenBlks;
72
73 /* init hash */
74 hashInit(hash, IV);
75
76 /* process main part of the message */
77 if(msgLenBlks) {
78 UpdateSHA512(hash, pMsg, msgLenBlks, sha512_cnt);
79 pMsg += msgLenBlks;
80 }
81
82 cpFinalizeSHA512(hash, pMsg, msgLenRest, msgLen, 0);
83 hash[0] = ENDIANNESS64(hash[0]);
84 hash[1] = ENDIANNESS64(hash[1]);
85 hash[2] = ENDIANNESS64(hash[2]);
86 hash[3] = ENDIANNESS64(hash[3]);
87 hash[4] = ENDIANNESS64(hash[4]);
88 hash[5] = ENDIANNESS64(hash[5]);
89 hash[6] = ENDIANNESS64(hash[6]);
90 hash[7] = ENDIANNESS64(hash[7]);
91
92 return ippStsNoErr;
93 }
94 }
95