/******************************************************************************
- BIKE -- Bit Flipping Key Encapsulation
- Copyright (c) 2021 Nir Drucker, Shay Gueron, Rafael Misoczki, Tobias Oder,
- Tim Gueneysu, Jan Richter-Brockmann.
- Contact: [email protected], [email protected],
- [email protected], [email protected], [email protected],
- [email protected].
- Permission to use this code for BIKE is granted.
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are met:
-
- Redistributions of source code must retain the above copyright notice,
- this list of conditions and the following disclaimer.
-
- Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in the
- documentation and/or other materials provided with the distribution.
-
- The names of the contributors may not be used to endorse or promote
- products derived from this software without specific prior written
- permission.
- THIS SOFTWARE IS PROVIDED BY THE AUTHORS ""AS IS"" AND ANY
- EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS CORPORATION OR
- CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
******************************************************************************/
ifndef DEFS_H_INCLUDED
define DEFS_H_INCLUDED
////////////////////////////////////////////
// BIKE main parameters
///////////////////////////////////////////
// UNCOMMENT TO SELECT THE NIST SECURITY LEVEL 1, 3 OR 5:
define PARAM64 // NIST LEVEL 1
//#define PARAM96 // NIST LEVEL 3
// #define PARAM128 // NIST LEVEL 5
// UNCOMMENT TO ENABLE BANDWIDTH OPTIMISATION FOR BIKE-3:
//#define BANDWIDTH_OPTIMIZED
// BIKE shared-secret size:
define ELL_BITS 256ULL
define ELL_SIZE (ELL_BITS/8)
////////////////////////////////////////////
// Implicit Parameters (do NOT edit below)
///////////////////////////////////////////
// select the max between a and b:
define MAX(a,b) ((a)>(b))?(a):(b)
// LEVEL-5 Security parameters:
ifdef PARAM128
define R_BITS 40973ULL
define DV 137ULL
define T1 264ULL
define VAR_TH_FCT(x) (MAX(17.8785 + 0.00402312 * (x), 69))
// Parameters for BGF Decoder:
define tau 3
define NbIter 5
// LEVEL-3 Security parameters:
elif defined(PARAM96)
define R_BITS 24659ULL
define DV 103ULL
define T1 199ULL
define VAR_TH_FCT(x) (MAX(15.2588 + 0.005265 * (x), 52))
// Parameters for BGF Decoder:
define tau 3
define NbIter 5
// LEVEL-1 security parameters:
elif defined(PARAM64)
define R_BITS 11003ULL
define DV 67LL
define T1 135ULL
define VAR_TH_FCT(x) (MAX(13.530 + 0.0069722 * (x), 36))
// Parameters for BGF Decoder:
define tau 3
define NbIter 5
endif
// Divide by the divider and round up to next integer:
define DIVIDE_AND_CEIL(x, divider) ((x/divider) + (x % divider == 0 ? 0 : 1ULL))
// Round the size to the nearest byte.
// SIZE suffix, is the number of bytes (uint8_t).
define N_BITS (R_BITS*2)
define R_SIZE DIVIDE_AND_CEIL(R_BITS, 8ULL)
define N_SIZE DIVIDE_AND_CEIL(N_BITS, 8ULL)
define R_DQWORDS DIVIDE_AND_CEIL(R_SIZE, 16ULL)
////////////////////////////////////////////
// Debug
///////////////////////////////////////////
ifndef VERBOSE
define VERBOSE 0
endif
if (VERBOSE == 3)
define MSG(...) { printf(VA_ARGS); }
define DMSG(...) MSG(VA_ARGS)
define EDMSG(...) MSG(VA_ARGS)
define SEDMSG(...) MSG(VA_ARGS)
elif (VERBOSE == 2)
define MSG(...) { printf(VA_ARGS); }
define DMSG(...) MSG(VA_ARGS)
define EDMSG(...) MSG(VA_ARGS)
define SEDMSG(...)
elif (VERBOSE == 1)
define MSG(...) { printf(VA_ARGS); }
define DMSG(...) MSG(VA_ARGS)
define EDMSG(...)
define SEDMSG(...)
else
define MSG(...) { printf(VA_ARGS); }
define DMSG(...)
define EDMSG(...)
define SEDMSG(...)
endif
////////////////////////////////////////////
// Printing
///////////////////////////////////////////
// Show timer results in cycles.
define RDTSC
//#define PRINT_IN_BE
//#define NO_SPACE
//#define NO_NEWLINE
////////////////////////////////////////////
// Testing
///////////////////////////////////////////