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#include <stdlib.h>
#include "randombytes.h"
#include "cpucycles.h"
#include "crypto_stream.h"
extern void printentry(long long,const char *,long long *,long long);
extern unsigned char *alignedcalloc(unsigned long long);
extern const char *primitiveimplementation;
extern const char *implementationversion;
extern const char *sizenames[];
extern const long long sizes[];
extern void allocate(void);
extern void measure(void);
const char *primitiveimplementation = crypto_stream_IMPLEMENTATION;
const char *implementationversion = crypto_stream_VERSION;
const char *sizenames[] = { "keybytes", "noncebytes", 0 };
const long long sizes[] = { crypto_stream_KEYBYTES, crypto_stream_NONCEBYTES };
#define MAXTEST_BYTES 4096
#ifdef SUPERCOP
#define MGAP 8192
#else
#define MGAP 8
#endif
static unsigned char *k;
static unsigned char *n;
static unsigned char *m;
static unsigned char *c;
void preallocate(void)
{
}
void allocate(void)
{
k = alignedcalloc(crypto_stream_KEYBYTES);
n = alignedcalloc(crypto_stream_NONCEBYTES);
m = alignedcalloc(MAXTEST_BYTES);
c = alignedcalloc(MAXTEST_BYTES);
}
#define TIMINGS 15
static long long cycles[TIMINGS + 1];
void measure(void)
{
int i;
int loop;
int mlen;
for (loop = 0;loop < LOOPS;++loop) {
for (mlen = 0;mlen <= MAXTEST_BYTES;mlen += 1 + mlen / MGAP) {
randombytes(k,crypto_stream_KEYBYTES);
randombytes(n,crypto_stream_NONCEBYTES);
randombytes(m,mlen);
randombytes(c,mlen);
for (i = 0;i <= TIMINGS;++i) {
cycles[i] = cpucycles();
crypto_stream(c,mlen,n,k);
}
for (i = 0;i < TIMINGS;++i) cycles[i] = cycles[i + 1] - cycles[i];
printentry(mlen,"cycles",cycles,TIMINGS);
for (i = 0;i <= TIMINGS;++i) {
cycles[i] = cpucycles();
crypto_stream_xor(c,m,mlen,n,k);
}
for (i = 0;i < TIMINGS;++i) cycles[i] = cycles[i + 1] - cycles[i];
printentry(mlen,"xor_cycles",cycles,TIMINGS);
}
}
}
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