diff options
Diffstat (limited to 'lib/liboqs/src/sig/dilithium/pqcrystals-dilithium_dilithium3_ref/ntt.c')
| -rw-r--r-- | lib/liboqs/src/sig/dilithium/pqcrystals-dilithium_dilithium3_ref/ntt.c | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/lib/liboqs/src/sig/dilithium/pqcrystals-dilithium_dilithium3_ref/ntt.c b/lib/liboqs/src/sig/dilithium/pqcrystals-dilithium_dilithium3_ref/ntt.c deleted file mode 100644 index 5ea8b530e..000000000 --- a/lib/liboqs/src/sig/dilithium/pqcrystals-dilithium_dilithium3_ref/ntt.c +++ /dev/null @@ -1,98 +0,0 @@ -#include <stdint.h> -#include "params.h" -#include "ntt.h" -#include "reduce.h" - -static const int32_t zetas[N] = { - 0, 25847, -2608894, -518909, 237124, -777960, -876248, 466468, - 1826347, 2353451, -359251, -2091905, 3119733, -2884855, 3111497, 2680103, - 2725464, 1024112, -1079900, 3585928, -549488, -1119584, 2619752, -2108549, - -2118186, -3859737, -1399561, -3277672, 1757237, -19422, 4010497, 280005, - 2706023, 95776, 3077325, 3530437, -1661693, -3592148, -2537516, 3915439, - -3861115, -3043716, 3574422, -2867647, 3539968, -300467, 2348700, -539299, - -1699267, -1643818, 3505694, -3821735, 3507263, -2140649, -1600420, 3699596, - 811944, 531354, 954230, 3881043, 3900724, -2556880, 2071892, -2797779, - -3930395, -1528703, -3677745, -3041255, -1452451, 3475950, 2176455, -1585221, - -1257611, 1939314, -4083598, -1000202, -3190144, -3157330, -3632928, 126922, - 3412210, -983419, 2147896, 2715295, -2967645, -3693493, -411027, -2477047, - -671102, -1228525, -22981, -1308169, -381987, 1349076, 1852771, -1430430, - -3343383, 264944, 508951, 3097992, 44288, -1100098, 904516, 3958618, - -3724342, -8578, 1653064, -3249728, 2389356, -210977, 759969, -1316856, - 189548, -3553272, 3159746, -1851402, -2409325, -177440, 1315589, 1341330, - 1285669, -1584928, -812732, -1439742, -3019102, -3881060, -3628969, 3839961, - 2091667, 3407706, 2316500, 3817976, -3342478, 2244091, -2446433, -3562462, - 266997, 2434439, -1235728, 3513181, -3520352, -3759364, -1197226, -3193378, - 900702, 1859098, 909542, 819034, 495491, -1613174, -43260, -522500, - -655327, -3122442, 2031748, 3207046, -3556995, -525098, -768622, -3595838, - 342297, 286988, -2437823, 4108315, 3437287, -3342277, 1735879, 203044, - 2842341, 2691481, -2590150, 1265009, 4055324, 1247620, 2486353, 1595974, - -3767016, 1250494, 2635921, -3548272, -2994039, 1869119, 1903435, -1050970, - -1333058, 1237275, -3318210, -1430225, -451100, 1312455, 3306115, -1962642, - -1279661, 1917081, -2546312, -1374803, 1500165, 777191, 2235880, 3406031, - -542412, -2831860, -1671176, -1846953, -2584293, -3724270, 594136, -3776993, - -2013608, 2432395, 2454455, -164721, 1957272, 3369112, 185531, -1207385, - -3183426, 162844, 1616392, 3014001, 810149, 1652634, -3694233, -1799107, - -3038916, 3523897, 3866901, 269760, 2213111, -975884, 1717735, 472078, - -426683, 1723600, -1803090, 1910376, -1667432, -1104333, -260646, -3833893, - -2939036, -2235985, -420899, -2286327, 183443, -976891, 1612842, -3545687, - -554416, 3919660, -48306, -1362209, 3937738, 1400424, -846154, 1976782 -}; - -/************************************************* -* Name: ntt -* -* Description: Forward NTT, in-place. No modular reduction is performed after -* additions or subtractions. Output vector is in bitreversed order. -* -* Arguments: - uint32_t p[N]: input/output coefficient array -**************************************************/ -void ntt(int32_t a[N]) { - unsigned int len, start, j, k; - int32_t zeta, t; - - k = 0; - for(len = 128; len > 0; len >>= 1) { - for(start = 0; start < N; start = j + len) { - zeta = zetas[++k]; - for(j = start; j < start + len; ++j) { - t = montgomery_reduce((int64_t)zeta * a[j + len]); - a[j + len] = a[j] - t; - a[j] = a[j] + t; - } - } - } -} - -/************************************************* -* Name: invntt_tomont -* -* Description: Inverse NTT and multiplication by Montgomery factor 2^32. -* In-place. No modular reductions after additions or -* subtractions; input coefficients need to be smaller than -* Q in absolute value. Output coefficient are smaller than Q in -* absolute value. -* -* Arguments: - uint32_t p[N]: input/output coefficient array -**************************************************/ -void invntt_tomont(int32_t a[N]) { - unsigned int start, len, j, k; - int32_t t, zeta; - const int32_t f = 41978; // mont^2/256 - - k = 256; - for(len = 1; len < N; len <<= 1) { - for(start = 0; start < N; start = j + len) { - zeta = -zetas[--k]; - for(j = start; j < start + len; ++j) { - t = a[j]; - a[j] = t + a[j + len]; - a[j + len] = t - a[j + len]; - a[j + len] = montgomery_reduce((int64_t)zeta * a[j + len]); - } - } - } - - for(j = 0; j < N; ++j) { - a[j] = montgomery_reduce((int64_t)f * a[j]); - } -} |