127 lines
3.6 KiB
C
127 lines
3.6 KiB
C
#pragma once
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// CATEGORY defined in the makefile
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/*----------------------------------------------------------------------------*/
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#if CATEGORY == 1
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#define TRNG_BYTE_LENGTH (24)
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#define HASH_FUNCTION sha3_256
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#define HASH_BYTE_LENGTH (32)
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// N0 defined in the makefile
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#if (DFR_SL_LEVEL == 0)
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#define P (35899) // modulus(x) = x^P-1
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#define DV (9) // odd number
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#define M (9)
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#define M0 (5)
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#define M1 (4)
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#define NUM_ERRORS_T (136)
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#elif (DFR_SL_LEVEL == 1)
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#define P (52147) // modulus(x) = x^P-1
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#define DV (9) // odd number
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#define M (9)
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#define M0 (5)
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#define M1 (4)
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#define NUM_ERRORS_T (136)
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#else
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#error "Unsupported number of circulant blocks"
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#endif
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#endif // end CATEGORY == 1
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/*----------------------------------------------------------------------------*/
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// We employ the parameters for Category 3 also in the case where the required
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// security level is Category 2, where Category 2 has the following parameters.
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// #define TRNG_BYTE_LENGTH (32)
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// #define HASH_FUNCTION sha3_256
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// #define HASH_BYTE_LENGTH (32)
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/*----------------------------------------------------------------------------*/
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#if (CATEGORY == 2) || (CATEGORY == 3)
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#define TRNG_BYTE_LENGTH (32)
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#define HASH_FUNCTION sha3_384
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#define HASH_BYTE_LENGTH (48)
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// N0 defined in the makefile
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#if (DFR_SL_LEVEL == 0)
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#define P (57899) // modulus(x) = x^P-1
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#define DV (11) // odd number
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#define M (11)
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#define M0 (6)
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#define M1 (5)
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#define NUM_ERRORS_T (199)
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#elif (DFR_SL_LEVEL == 1)
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#define P (96221) // modulus(x) = x^P-1
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#define DV (11) // odd number
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#define M (11)
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#define M0 (6)
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#define M1 (5)
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#define NUM_ERRORS_T (199)
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#else
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#error "Unsupported number of circulant blocks"
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#endif
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#endif
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/*----------------------------------------------------------------------------*/
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// We employ the parameters for Category 4 also in the case where the required
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// security level is Category 5, where Category 4 has the following parameters.
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// #if CATEGORY == 4
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// #define TRNG_BYTE_LENGTH (40)
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// #define HASH_FUNCTION sha3_384
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// #define HASH_BYTE_LENGTH (48)
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// #endif
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/*----------------------------------------------------------------------------*/
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#if (CATEGORY == 4) || (CATEGORY == 5)
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#define TRNG_BYTE_LENGTH (40)
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#define HASH_FUNCTION sha3_512
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#define HASH_BYTE_LENGTH (64)
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// N0 defined in the makefile
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#if (DFR_SL_LEVEL == 0)
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#define P (89051) // modulus(x) = x^P-1
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#define DV (13) // odd number
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#define M (13)
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#define M0 (7)
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#define M1 (6)
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#define NUM_ERRORS_T (267)
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#elif (DFR_SL_LEVEL == 1)
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#define P (152267) // modulus(x) = x^P-1
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#define DV (13) // odd number
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#define M (13)
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#define M0 (7)
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#define M1 (6)
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#define NUM_ERRORS_T (267)
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#else
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#error "Unsupported number of circulant blocks"
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#endif
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#endif
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/*----------------------------------------------------------------------------*/
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// Derived parameters, they are useful for QC-LDPC algorithms
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#define HASH_BIT_LENGTH (HASH_BYTE_LENGTH << 3)
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#define K ((N0-1)*P)
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#define N (N0*P)
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#define DC (N0*DV)
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// Circulant weight structure of the Q matrix, specialized per value of N0
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#if N0 == 2
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#define Q_BLOCK_WEIGHTS {{M0,M1},{M1,M0}}
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#elif N0 == 3
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#define Q_BLOCK_WEIGHTS {{M0,M1,M2},{M2,M0,M1},{M1,M2,M0}}
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#elif N0 == 4
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#define Q_BLOCK_WEIGHTS {{M0,M1,M2,M3},{M3,M0,M1,M2},{M2,M3,M0,M1},{M1,M2,M3,M0}}
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#else
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#error "Unsupported number of circulant blocks"
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#endif
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static const unsigned char qBlockWeights[N0][N0] = Q_BLOCK_WEIGHTS;
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/*----------------------------------------------------------------------------*/
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