pqc/crypto_kem/ntrulpr761/clean/crypto_encode_761x1531.c
John M. Schanck 431dbada45 Add sntrup{653,761,857} and ntrulpr{653,761,857}
Exported from SUPERCOP-20200826 using the scripts at:
https://github.com/jschanck/pqclean-package-ntruprime
2021-03-24 21:02:46 +00:00

120 lines
2.4 KiB
C

#include "crypto_encode_761x1531.h"
/* auto-generated; do not edit */
#define int16 int16_t
#define uint16 uint16_t
#define uint32 uint32_t
void PQCLEAN_NTRULPR761_CLEAN_crypto_encode_761x1531(unsigned char *out, const void *v) {
const int16 *R0 = v;
/* XXX: caller could overlap R with input */
uint16 R[381];
long i;
uint16 r0, r1;
uint32 r2;
for (i = 0; i < 380; ++i) {
r0 = (((R0[2 * i] + 2295) & 16383) * 10923) >> 15;
r1 = (((R0[2 * i + 1] + 2295) & 16383) * 10923) >> 15;
r2 = r0 + r1 * (uint32)1531;
*out++ = r2;
r2 >>= 8;
R[i] = r2;
}
R[380] = (((R0[760] + 2295) & 16383) * 10923) >> 15;
for (i = 0; i < 190; ++i) {
r0 = R[2 * i];
r1 = R[2 * i + 1];
r2 = r0 + r1 * (uint32)9157;
*out++ = r2;
r2 >>= 8;
*out++ = r2;
r2 >>= 8;
R[i] = r2;
}
R[190] = R[380];
for (i = 0; i < 95; ++i) {
r0 = R[2 * i];
r1 = R[2 * i + 1];
r2 = r0 + r1 * (uint32)1280;
*out++ = r2;
r2 >>= 8;
R[i] = r2;
}
R[95] = R[190];
for (i = 0; i < 48; ++i) {
r0 = R[2 * i];
r1 = R[2 * i + 1];
r2 = r0 + r1 * (uint32)6400;
*out++ = r2;
r2 >>= 8;
*out++ = r2;
r2 >>= 8;
R[i] = r2;
}
for (i = 0; i < 24; ++i) {
r0 = R[2 * i];
r1 = R[2 * i + 1];
r2 = r0 + r1 * (uint32)625;
*out++ = r2;
r2 >>= 8;
R[i] = r2;
}
for (i = 0; i < 12; ++i) {
r0 = R[2 * i];
r1 = R[2 * i + 1];
r2 = r0 + r1 * (uint32)1526;
*out++ = r2;
r2 >>= 8;
R[i] = r2;
}
for (i = 0; i < 6; ++i) {
r0 = R[2 * i];
r1 = R[2 * i + 1];
r2 = r0 + r1 * (uint32)9097;
*out++ = r2;
r2 >>= 8;
*out++ = r2;
r2 >>= 8;
R[i] = r2;
}
for (i = 0; i < 3; ++i) {
r0 = R[2 * i];
r1 = R[2 * i + 1];
r2 = r0 + r1 * (uint32)1263;
*out++ = r2;
r2 >>= 8;
R[i] = r2;
}
r0 = R[0];
r1 = R[1];
r2 = r0 + r1 * (uint32)6232;
*out++ = r2;
r2 >>= 8;
*out++ = r2;
r2 >>= 8;
R[0] = r2;
R[1] = R[2];
r0 = R[0];
r1 = R[1];
r2 = r0 + r1 * (uint32)593;
*out++ = r2;
r2 >>= 8;
R[0] = r2;
r0 = R[0];
*out++ = r0;
r0 >>= 8;
*out++ = r0; /*clang-analyzer-deadcode.DeadStores*/ /*r0 >>= 8;*/
}