pqc/crypto_kem/sntrup857/clean/crypto_encode_857x5167.c
2021-03-24 21:02:47 +00:00

139 lines
3.1 KiB
C

#include "crypto_encode_857x5167.h"
/* auto-generated; do not edit */
#define int16 int16_t
#define uint16 uint16_t
#define uint32 uint32_t
void PQCLEAN_SNTRUP857_CLEAN_crypto_encode_857x5167(unsigned char *out, const void *v) {
const int16 *R0 = v;
/* XXX: caller could overlap R with input */
uint16 R[429];
long i;
uint16 r0, r1;
uint32 r2;
for (i = 0; i < 428; ++i) {
r0 = (uint16) ((R0[2 * i] + 2583) & 16383);
r1 = (uint16) ((R0[2 * i + 1] + 2583) & 16383);
r2 = r0 + r1 * (uint32)5167;
*out++ = (unsigned char) r2;
r2 >>= 8;
*out++ = (unsigned char) r2;
r2 >>= 8;
R[i] = (uint16) r2;
}
R[428] = (uint16) ((R0[856] + 2583) & 16383);
for (i = 0; i < 214; ++i) {
r0 = R[2 * i];
r1 = R[2 * i + 1];
r2 = r0 + r1 * (uint32)408;
*out++ = (unsigned char) r2;
r2 >>= 8;
R[i] = (uint16) r2;
}
R[214] = R[428];
for (i = 0; i < 107; ++i) {
r0 = R[2 * i];
r1 = R[2 * i + 1];
r2 = r0 + r1 * (uint32)651;
*out++ = (unsigned char) r2;
r2 >>= 8;
R[i] = (uint16) r2;
}
R[107] = R[214];
for (i = 0; i < 53; ++i) {
r0 = R[2 * i];
r1 = R[2 * i + 1];
r2 = r0 + r1 * (uint32)1656;
*out++ = (unsigned char) r2;
r2 >>= 8;
R[i] = (uint16) r2;
}
r0 = R[106];
r1 = R[107];
r2 = r0 + r1 * (uint32)1656;
*out++ = (unsigned char) r2;
r2 >>= 8;
*out++ = (unsigned char) r2;
r2 >>= 8;
R[53] = (uint16) r2;
for (i = 0; i < 26; ++i) {
r0 = R[2 * i];
r1 = R[2 * i + 1];
r2 = r0 + r1 * (uint32)10713;
*out++ = (unsigned char) r2;
r2 >>= 8;
*out++ = (unsigned char) r2;
r2 >>= 8;
R[i] = (uint16) r2;
}
r0 = R[52];
r1 = R[53];
r2 = r0 + r1 * (uint32)10713;
*out++ = (unsigned char) r2;
r2 >>= 8;
R[26] = (uint16) r2;
for (i = 0; i < 13; ++i) {
r0 = R[2 * i];
r1 = R[2 * i + 1];
r2 = r0 + r1 * (uint32)1752;
*out++ = (unsigned char) r2;
r2 >>= 8;
R[i] = (uint16) r2;
}
R[13] = R[26];
for (i = 0; i < 7; ++i) {
r0 = R[2 * i];
r1 = R[2 * i + 1];
r2 = r0 + r1 * (uint32)11991;
*out++ = (unsigned char) r2;
r2 >>= 8;
*out++ = (unsigned char) r2;
r2 >>= 8;
R[i] = (uint16) r2;
}
for (i = 0; i < 3; ++i) {
r0 = R[2 * i];
r1 = R[2 * i + 1];
r2 = r0 + r1 * (uint32)2194;
*out++ = (unsigned char) r2;
r2 >>= 8;
*out++ = (unsigned char) r2;
r2 >>= 8;
R[i] = (uint16) r2;
}
R[3] = R[6];
r0 = R[0];
r1 = R[1];
r2 = r0 + r1 * (uint32)74;
R[0] = (uint16) r2;
r0 = R[2];
r1 = R[3];
r2 = r0 + r1 * (uint32)74;
*out++ = (unsigned char) r2;
r2 >>= 8;
R[1] = (uint16) r2;
r0 = R[0];
r1 = R[1];
r2 = r0 + r1 * (uint32)5476;
*out++ = (unsigned char) r2;
r2 >>= 8;
R[0] = (uint16) r2;
r0 = R[0];
*out++ = (unsigned char) r0;
r0 >>= 8;
*out++ = (unsigned char) r0;
}