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- /**
- * @file test_decaf.cxx
- * @author Mike Hamburg
- *
- * @copyright
- * Copyright (c) 2015 Cryptography Research, Inc. \n
- * Released under the MIT License. See LICENSE.txt for license information.
- *
- * @brief C++ benchmarks, because that's easier.
- */
-
- #include "decaf.hxx"
- #include "shake.h"
- #include "decaf_crypto.h"
- #include <stdio.h>
- #include <sys/time.h>
- #include <assert.h>
- #include <stdint.h>
-
- typedef decaf::decaf<448>::Scalar Scalar;
- typedef decaf::decaf<448>::Point Point;
- typedef decaf::decaf<448>::Precomputed Precomputed;
-
- static __inline__ void __attribute__((unused)) ignore_result ( int result ) { (void)result; }
- static double now(void) {
- struct timeval tv;
- gettimeofday(&tv, NULL);
- return tv.tv_sec + tv.tv_usec/1000000.0;
- }
-
- // RDTSC from the chacha code
- #ifndef __has_builtin
- #define __has_builtin(X) 0
- #endif
- #if defined(__clang__) && __has_builtin(__builtin_readcyclecounter)
- #define rdtsc __builtin_readcyclecounter
- #else
- static inline uint64_t rdtsc(void) {
- u_int64_t out = 0;
- # if (defined(__i386__) || defined(__x86_64__))
- __asm__ __volatile__ ("rdtsc" : "=A"(out));
- # endif
- return out;
- }
- #endif
-
- class Benchmark {
- static const int NTESTS = 1000;
- public:
- int i, ntests;
- double begin;
- uint64_t tsc_begin;
- Benchmark(const char *s, double factor = 1) {
- printf("%s:", s);
- if (strlen(s) < 25) printf("%*s",int(25-strlen(s)),"");
- fflush(stdout);
- i = 0;
- ntests = NTESTS * factor;
- begin = now();
- tsc_begin = rdtsc();
- }
- ~Benchmark() {
- double tsc = (rdtsc() - tsc_begin) * 1.0 / ntests;
- double t = (now() - begin)/ntests;
- const char *small[] = {" ","m","ยต","n","p"};
- const char *big[] = {" ","k","M","G","T"};
- unsigned di=0;
- for (di=0; di<sizeof(small)/sizeof(*small)-1 && t && t < 1; di++) {
- t *= 1000.0;
- }
- unsigned bi=0;
- for (bi=0; bi<sizeof(big)/sizeof(*big)-1 && tsc && tsc >= 1000; bi++) {
- tsc /= 1000.0;
- }
- printf("%7.2f %ss", t, small[di]);
- if (tsc) printf(" %7.2f %scy", tsc, big[bi]);
- printf("\n");
- }
- inline bool iter() { return i++ < ntests; }
- };
-
- int main(int argc, char **argv) {
- bool micro = false;
- if (argc >= 2 && !strcmp(argv[1], "--micro"))
- micro = true;
-
- decaf_448_public_key_t p1,p2;
- decaf_448_private_key_t s1,s2;
- decaf_448_symmetric_key_t r1,r2;
- decaf_448_signature_t sig1;
- unsigned char ss[32];
-
- memset(r1,1,sizeof(r1));
- memset(r2,2,sizeof(r2));
-
- unsigned char umessage[] = {1,2,3,4,5};
- size_t lmessage = sizeof(umessage);
-
-
- if (micro) {
- Precomputed pBase;
- Point p,q;
- Scalar s,t;
-
- printf("Micro:\n");
- for (Benchmark b("Scalar add", 1000); b.iter(); ) { s+t; }
- for (Benchmark b("Scalar times", 100); b.iter(); ) { s*t; }
- for (Benchmark b("Scalar inv", 10); b.iter(); ) { s.inverse(); }
- for (Benchmark b("Point add", 100); b.iter(); ) { p + q; }
- for (Benchmark b("Point double", 100); b.iter(); ) { p.double_in_place(); }
- for (Benchmark b("Point scalarmul"); b.iter(); ) { p * s; }
- for (Benchmark b("Point double scalarmul"); b.iter(); ) { Point::double_scalarmul(p,s,q,t); }
- for (Benchmark b("Point precmp scalarmul"); b.iter(); ) { pBase * s; }
- /* TODO: scalarmul for verif */
- printf("\nMacro:\n");
- }
-
- for (Benchmark b("Keygen"); b.iter(); ) {
- decaf_448_derive_private_key(s1,r1);
- }
-
- decaf_448_private_to_public(p1,s1);
- decaf_448_derive_private_key(s2,r2);
- decaf_448_private_to_public(p2,s2);
-
- for (Benchmark b("Shared secret"); b.iter(); ) {
- decaf_bool_t ret = decaf_448_shared_secret(ss,sizeof(ss),s1,p2);
- ignore_result(ret);
- assert(ret);
- }
-
- for (Benchmark b("Sign"); b.iter(); ) {
- decaf_448_sign(sig1,s1,umessage,lmessage);
- }
-
- for (Benchmark b("Verify"); b.iter(); ) {
- decaf_bool_t ret = decaf_448_verify(sig1,p1,umessage,lmessage);
- umessage[0]++;
- ignore_result(ret);
- }
-
- printf("\n");
-
- return 0;
- }
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