pqc/crypto_kem/sntrup653/clean/crypto_encode_653x4621.c
2020-09-01 15:16:45 -04:00

128 lines
2.9 KiB
C

#include "crypto_encode_653x4621.h"
/* auto-generated; do not edit */
#define int16 int16_t
#define uint16 uint16_t
#define uint32 uint32_t
void PQCLEAN_SNTRUP653_CLEAN_crypto_encode_653x4621(unsigned char *out, const void *v) {
const int16 *R0 = v;
/* XXX: caller could overlap R with input */
uint16 R[327];
long i;
uint16 r0, r1;
uint32 r2;
for (i = 0; i < 326; ++i) {
r0 = (uint16) ((R0[2 * i] + 2310) & 16383);
r1 = (uint16) ((R0[2 * i + 1] + 2310) & 16383);
r2 = r0 + r1 * (uint32)4621;
*out++ = (unsigned char) r2;
r2 >>= 8;
*out++ = (unsigned char) r2;
r2 >>= 8;
R[i] = (uint16) r2;
}
R[326] = (uint16) ((R0[652] + 2310) & 16383);
for (i = 0; i < 163; ++i) {
r0 = R[2 * i];
r1 = R[2 * i + 1];
r2 = r0 + r1 * (uint32)326;
*out++ = (unsigned char) r2;
r2 >>= 8;
R[i] = (uint16) r2;
}
R[163] = R[326];
for (i = 0; i < 82; ++i) {
r0 = R[2 * i];
r1 = R[2 * i + 1];
r2 = r0 + r1 * (uint32)416;
*out++ = (unsigned char) r2;
r2 >>= 8;
R[i] = (uint16) r2;
}
for (i = 0; i < 40; ++i) {
r0 = R[2 * i];
r1 = R[2 * i + 1];
r2 = r0 + r1 * (uint32)676;
*out++ = (unsigned char) r2;
r2 >>= 8;
R[i] = (uint16) r2;
}
r0 = R[80];
r1 = R[81];
r2 = r0 + r1 * (uint32)676;
*out++ = (unsigned char) r2;
r2 >>= 8;
*out++ = (unsigned char) r2;
r2 >>= 8;
R[40] = (uint16) r2;
for (i = 0; i < 20; ++i) {
r0 = R[2 * i];
r1 = R[2 * i + 1];
r2 = r0 + r1 * (uint32)1786;
*out++ = (unsigned char) r2;
r2 >>= 8;
R[i] = (uint16) r2;
}
R[20] = R[40];
for (i = 0; i < 10; ++i) {
r0 = R[2 * i];
r1 = R[2 * i + 1];
r2 = r0 + r1 * (uint32)12461;
*out++ = (unsigned char) r2;
r2 >>= 8;
*out++ = (unsigned char) r2;
r2 >>= 8;
R[i] = (uint16) r2;
}
R[10] = R[20];
for (i = 0; i < 5; ++i) {
r0 = R[2 * i];
r1 = R[2 * i + 1];
r2 = r0 + r1 * (uint32)2370;
*out++ = (unsigned char) r2;
r2 >>= 8;
*out++ = (unsigned char) r2;
r2 >>= 8;
R[i] = (uint16) r2;
}
R[5] = R[10];
for (i = 0; i < 3; ++i) {
r0 = R[2 * i];
r1 = R[2 * i + 1];
r2 = r0 + r1 * (uint32)86;
R[i] = (uint16) r2;
}
r0 = R[0];
r1 = R[1];
r2 = r0 + r1 * (uint32)7396;
*out++ = (unsigned char) r2;
r2 >>= 8;
*out++ = (unsigned char) r2;
r2 >>= 8;
R[0] = (uint16) r2;
R[1] = R[2];
r0 = R[0];
r1 = R[1];
r2 = r0 + r1 * (uint32)835;
*out++ = (unsigned char) r2;
r2 >>= 8;
*out++ = (unsigned char) r2;
r2 >>= 8;
R[0] = (uint16) r2;
r0 = R[0];
*out++ = (unsigned char) r0;
}