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40
41 /*
42 //
43 // Purpose:
44 // Cryptography Primitive.
45 // Security Hash Standard
46 // Generalized Functionality
47 //
48 // Contents:
49 // cpFinalize_rmf()
50 //
51 */
52
53 #include "owndefs.h"
54 #include "owncp.h"
55 #include "pcphash_rmf.h"
56 #include "pcptool.h"
57
58
cpFinalize_rmf(DigestSHA512 pHash,const Ipp8u * inpBuffer,int inpLen,Ipp64u lenLo,Ipp64u lenHi,const IppsHashMethod * method)59 void cpFinalize_rmf(DigestSHA512 pHash,
60 const Ipp8u* inpBuffer, int inpLen,
61 Ipp64u lenLo, Ipp64u lenHi,
62 const IppsHashMethod* method)
63 {
64 int mbs = method->msgBlkSize; /* messge block size */
65 int mrl = method->msgLenRepSize; /* processed length representation size */
66
67 /* local buffer and it length */
68 Ipp8u buffer[MBS_SHA512*2];
69 int bufferLen = inpLen < (mbs-mrl)? mbs : mbs*2;
70
71 /* copy rest of message into internal buffer */
72 CopyBlock(inpBuffer, buffer, inpLen);
73
74 /* padd message */
75 buffer[inpLen++] = 0x80;
76 PaddBlock(0, buffer+inpLen, bufferLen-inpLen-mrl);
77
78 /* message length representation */
79 method->msgLenRep(buffer+bufferLen-mrl, lenLo, lenHi);
80
81 /* copmplete hash computation */
82 method->hashUpdate(pHash, buffer, bufferLen);
83 }
84