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| |
| /* |
| // |
| // Purpose: |
| // Cryptography Primitive. |
| // Security Hash Standard |
| // Generalized Functionality |
| // |
| // Contents: |
| // ippsHashMessage_rmf() |
| // |
| */ |
| |
| #include "owndefs.h" |
| #include "owncp.h" |
| #include "pcphash_rmf.h" |
| #include "pcptool.h" |
| |
| /*F* |
| // Name: ippsHashMessage_rmf |
| // |
| // Purpose: Hash of the whole message. |
| // |
| // Returns: Reason: |
| // ippStsNullPtrErr pMD == NULL |
| // pMsg == NULL but len!=0 |
| // ippStsLengthErr len <0 |
| // ippStsNoErr no errors |
| // |
| // Parameters: |
| // pMsg pointer to the input message |
| // len input message length |
| // pMD address of the output digest |
| // pMethod hash methods |
| // |
| *F*/ |
| IPPFUN(IppStatus, ippsHashMessage_rmf,(const Ipp8u* pMsg, int len, Ipp8u* pMD, const IppsHashMethod* pMethod)) |
| { |
| /* test method pointer */ |
| IPP_BAD_PTR1_RET(pMethod); |
| /* test digest pointer */ |
| IPP_BAD_PTR1_RET(pMD); |
| /* test message length */ |
| IPP_BADARG_RET(0>len, ippStsLengthErr); |
| IPP_BADARG_RET((len && !pMsg), ippStsNullPtrErr); |
| |
| { |
| /* message length in the multiple MBS and the rest */ |
| int msgLenBlks = len &(-pMethod->msgBlkSize); |
| int msgLenRest = len - msgLenBlks; |
| |
| /* init hash */ |
| DigestSHA512 hash; |
| pMethod->hashInit(hash); |
| |
| /* process main part of the message */ |
| if(msgLenBlks) { |
| pMethod->hashUpdate(hash, pMsg, msgLenBlks); |
| pMsg += msgLenBlks; |
| } |
| cpFinalize_rmf(hash, |
| pMsg, msgLenRest, |
| len, 0, |
| pMethod); |
| |
| pMethod->hashOctStr(pMD, hash); |
| |
| return ippStsNoErr; |
| } |
| } |