added tweetnacl.c bench

Author: tom zhou

bench/Makefile

@@ -0,0 +1,2 @@
+all:
+	g++ -I../tweetnacl/ -o bench bench.cpp ../tweetnacl/tweetnacl.c

bench/bench.cpp

@@ -0,0 +1,64 @@
+
+#include <iostream>
+#include <stdio.h>
+#include <sys/time.h>
+
+#include "tweetnacl.h"
+
+using namespace std;
+
+void randombytes(unsigned char * nonce, unsigned long long d) {
+	for (unsigned long long i = 0; i < d; i ++)
+		nonce[i] = d;
+}
+
+int main(int argc, char *argv[]) {
+
+	// Stress on secretBox
+
+	// shared key
+	int i;
+
+	unsigned char shk[crypto_secretbox_KEYBYTES];
+	for (i = 0; i < sizeof(shk); i ++)
+		shk[i] = 0x66;
+
+	unsigned char nonce[crypto_secretbox_NONCEBYTES];
+	for (i = 0; i < sizeof(nonce); i ++)
+		nonce[i] = 0x68;
+
+	// messages
+	string m0 = "Helloword, TweetNacl...";
+
+	// cipher A -> B
+	cout << "streess on secret box@"+m0;
+
+	timeval curTime;
+
+	for (int t = 0; t < 19; t ++, m0 += m0) {
+		const char * mb0 = m0.c_str();
+
+		printf("\n\n\tstreess/%fkB: %d times\n", m0.length()/1000.0, t);
+
+		gettimeofday(&curTime, NULL);
+		printf("secret box ...@%6.3f\n", curTime.tv_sec*1000 + (curTime.tv_usec / 1000));
+
+		unsigned char cab[crypto_secretbox_ZEROBYTES+m0.length()];
+		crypto_secretbox((unsigned char *)cab, (unsigned char *)mb0, m0.length(), (unsigned char *)nonce, (unsigned char *)shk);
+
+		gettimeofday(&curTime, NULL);
+		printf("... secret box@%6.3f\n", curTime.tv_sec*1000 + (curTime.tv_usec / 1000));
+
+
+		gettimeofday(&curTime, NULL);
+		printf("\nsecret box open ...@%f\n", curTime.tv_sec*1000 + (curTime.tv_usec / 1000));
+
+		unsigned char mba[crypto_secretbox_ZEROBYTES+m0.length()];
+		crypto_secretbox_open((unsigned char *)mba, (unsigned char *)(cab+16), 16+m0.length(), (unsigned char *)nonce, (unsigned char *)shk);
+
+		gettimeofday(&curTime, NULL);
+		printf("... secret box open@%6.3f\n", curTime.tv_sec*1000 + (curTime.tv_usec / 1000));
+	}
+
+	return 0;
+}

bench/bench.exe

@@ -10,10 +10,10 @@ typedef i64 gf[16];
 extern void randombytes(u8 *,u64);
 
 static const u8
-  _0[16],
+  _0[16] = {0},
   _9[32] = {9};
 static const gf
-  gf0,
+  gf0 = {0},
   gf1 = {1},
   _121665 = {0xDB41,1},
   D = {0x78a3, 0x1359, 0x4dca, 0x75eb, 0xd8ab, 0x4141, 0x0a4d, 0x0070, 0xe898, 0x7779, 0x4079, 0x8cc7, 0xfe73, 0x2b6f, 0x6cee, 0x5203},
@@ -120,7 +120,7 @@ int crypto_core_hsalsa20(u8 *out,const u8 *in,const u8 *k,const u8 *c)
   return 0;
 }
 
-static const u8 sigma[16] = "expand 32-byte k";
+static const u8 sigma[17] = "expand 32-byte k";
 
 int crypto_stream_salsa20_xor(u8 *c,const u8 *m,u64 b,const u8 *n,const u8 *k)
 {

tweetnacl/tweetnacl.c

@@ -1,5 +1,10 @@
 #ifndef TWEETNACL_H
 #define TWEETNACL_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define crypto_auth_PRIMITIVE "hmacsha512256"
 #define crypto_auth crypto_auth_hmacsha512256
 #define crypto_auth_verify crypto_auth_hmacsha512256_verify
@@ -269,4 +274,9 @@ extern int crypto_verify_32_tweet(const unsigned char *,const unsigned char *);
 #define crypto_verify_32_BYTES crypto_verify_32_tweet_BYTES
 #define crypto_verify_32_VERSION crypto_verify_32_tweet_VERSION
 #define crypto_verify_32_IMPLEMENTATION "crypto_verify/32/tweet"
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif