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You may 30 * obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 31 * 32 * 33 * Unless required by applicable law or agreed to in writing, software 34 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 35 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 36 * 37 * See the License for the specific language governing permissions and 38 * limitations under the License. 39 *******************************************************************************/ 40 41 /* 42 // 43 // Purpose: 44 // Cryptography Primitive. 45 // Internal Definitions and 46 // Internal DL (prime) basic Definitions & Function Prototypes 47 // 48 // 49 */ 50 51 #if !defined(_PCP_DLP_H) 52 #define _PCP_DLP_H 53 54 #include "pcpbn.h" 55 #include "pcpmontgomery.h" 56 #include "pcpprimeg.h" 57 #include "pcpbnresource.h" 58 59 /* 60 // DLP context 61 */ 62 63 //#define MIN_DLP_BITSIZE (512) 64 //#define MAX_DLP_BITSIZE (2048) 65 //#define DEF_DLP_BITSIZER (160) 66 67 struct _cpDLP { 68 IppCtxId idCtx; /* DL identifier */ 69 Ipp32u flag; /* complete flag */ 70 71 int bitSizeP; /* DH bitsize (P) */ 72 int bitSizeR; /* DH bitsize (R) */ 73 74 int method; /* exponentiation method: binary/window */ 75 gsModEngine* pMontP0; /* Montgomery P-engine */ 76 gsModEngine* pMontP1; /* Montgomery P-engine (for multithread version) */ 77 gsModEngine* pMontR; /* Montgomery R-engine */ 78 79 IppsBigNumState* pGenc; /* P-encoded DL generator */ 80 IppsBigNumState* pX; /* private key */ 81 IppsBigNumState* pYenc; /* P-encoded public key */ 82 83 IppsPrimeState* pPrimeGen; /* prime generator */ 84 85 BNU_CHUNK_T* pMeTable; /* pre-computed multi-exp table */ 86 87 BigNumNode* pBnList; /* BN resource */ 88 #if defined(_USE_WINDOW_EXP_) 89 BNU_CHUNK_T* pBnuList0; /* BNU resource */ 90 BNU_CHUNK_T* pBnuList1; /* BNU resource (for multithread version) */ 91 #endif 92 }; 93 94 /* 95 // Exponentiation method 96 */ 97 #define BINARY (0) 98 #define WINDOW ((BINARY)+1) 99 100 #define BNLISTSIZE (8) /* list size */ 101 102 /* 103 // Contetx Access Macros 104 */ 105 #define DLP_ID(ctx) ((ctx)->idCtx) 106 #define DLP_FLAG(ctx) ((ctx)->flag) 107 #define DLP_BITSIZEP(ctx) ((ctx)->bitSizeP) 108 #define DLP_BITSIZER(ctx) ((ctx)->bitSizeR) 109 #define DLP_EXPMETHOD(ctx) ((ctx)->method) 110 111 #define DLP_MONTP0(ctx) ((ctx)->pMontP0) 112 #define DLP_MONTP1(ctx) ((ctx)->pMontP1) 113 #define DLP_MONTR(ctx) ((ctx)->pMontR) 114 115 #define DLP_P(ctx) (MOD_MODULUS(DLP_MONTP0((ctx)))) 116 #define DLP_R(ctx) (MOD_MODULUS(DLP_MONTR((ctx)))) 117 #define DLP_GENC(ctx) ((ctx)->pGenc) 118 #define DLP_X(ctx) ((ctx)->pX) 119 #define DLP_YENC(ctx) ((ctx)->pYenc) 120 121 #define DLP_PRIMEGEN(ctx) ((ctx)->pPrimeGen) 122 123 #define DLP_METBL(ctx) ((ctx)->pMeTable) 124 #define DLP_BNCTX(ctx) ((ctx)->pBnList) 125 #if defined(_USE_WINDOW_EXP_) 126 #define DLP_BNUCTX0(ctx) ((ctx)->pBnuList0) 127 #define DLP_BNUCTX1(ctx) ((ctx)->pBnuList1) 128 #endif 129 130 #define DLP_VALID_ID(ctx) (DLP_ID((ctx))==idCtxDLP) 131 #define DLP_COMPLETE(ctx) (DLP_FLAG((ctx))==(IppDLPkeyP|IppDLPkeyR|IppDLPkeyG)) 132 133 /* alignment */ 134 #define DLP_ALIGNMENT ((int)(sizeof(void*))) 135 136 /* pool size for gsModEngine */ 137 #define DLP_MONT_POOL_LENGTH (6) 138 139 #define cpPackDLPCtx OWNAPI(cpPackDLPCtx) 140 void cpPackDLPCtx(const IppsDLPState* pDLP, Ipp8u* pBuffer); 141 #define cpUnpackDLPCtx OWNAPI(cpUnpackDLPCtx) 142 void cpUnpackDLPCtx(const Ipp8u* pBuffer, IppsDLPState* pDLP); 143 144 #endif /* _PCP_DLP_H */ 145
