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40 
41 /*
42 //               Intel(R) Integrated Performance Primitives
43 //                   Cryptographic Primitives (ippcp)
44 //
45 //  Contents:
46 //        ippsMontGetSize()
47 //
48 */
49 
50 #include "owndefs.h"
51 #include "owncp.h"
52 #include "pcpbn.h"
53 #include "pcpmontgomery.h"
54 #include "pcptool.h"
55 
56 /*F*
57 // Name: ippsMontGetSize
58 //
59 // Purpose: Specifies size of buffer in bytes.
60 //
61 // Returns:                Reason:
62 //      ippStsNullPtrErr    pSize==NULL
63 //      ippStsLengthErr     length < 1
64 //                          length > BITS2WORD32_SIZE(BN_MAXBITSIZE)
65 //      ippStsNoErr         no errors
66 //
67 // Parameters:
68 //      method    selected exponential method (unused parameter)
69 //      length    max modulus length (in Ipp32u chunks)
70 //      pSize     size of context
71 //
72 // Notes: Function always use method=ippBinaryMethod,
73 //        so this parameter is ignored
74 *F*/
75 IPPFUN(IppStatus, ippsMontGetSize, (IppsExpMethod method, int length, int* pSize))
76 {
77    IPP_BAD_PTR1_RET(pSize);
78    IPP_BADARG_RET(length<1 || length>BITS2WORD32_SIZE(BN_MAXBITSIZE), ippStsLengthErr);
79 
80    UNREFERENCED_PARAMETER(method);
81 
82    {
83       return cpMontGetSize(length, MONT_DEFAULT_POOL_LENGTH, pSize);
84    }
85 }
86