1 files changed, 137 insertions, 0 deletions

diff --git a/nacl/crypto_box/measure.c b/nacl/crypto_box/measure.c
new file mode 100644
index 00000000..08df1e39
--- /dev/null
+++ b/nacl/crypto_box/measure.c
@@ -0,0 +1,137 @@
+#include <stdlib.h>
+#include "randombytes.h"
+#include "cpucycles.h"
+#include "crypto_box.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_box_IMPLEMENTATION;
+const char *implementationversion = crypto_box_VERSION;
+const char *sizenames[] = { "publickeybytes", "secretkeybytes", "beforenmbytes", "noncebytes", "zerobytes", "boxzerobytes", 0 };
+const long long sizes[] = { crypto_box_PUBLICKEYBYTES, crypto_box_SECRETKEYBYTES, crypto_box_BEFORENMBYTES, crypto_box_NONCEBYTES, crypto_box_ZEROBYTES, crypto_box_BOXZEROBYTES };
+
+#define MAXTEST_BYTES 4096
+
+static unsigned char *ska;
+static unsigned char *pka;
+static unsigned char *skb;
+static unsigned char *pkb;
+static unsigned char *n;
+static unsigned char *m;
+static unsigned char *c;
+static unsigned char *sa;
+static unsigned char *sb;
+
+void preallocate(void)
+{
+}
+
+void allocate(void)
+{
+  ska = alignedcalloc(crypto_box_SECRETKEYBYTES);
+  pka = alignedcalloc(crypto_box_PUBLICKEYBYTES);
+  skb = alignedcalloc(crypto_box_SECRETKEYBYTES);
+  pkb = alignedcalloc(crypto_box_PUBLICKEYBYTES);
+  n = alignedcalloc(crypto_box_NONCEBYTES);
+  m = alignedcalloc(MAXTEST_BYTES + crypto_box_ZEROBYTES);
+  c = alignedcalloc(MAXTEST_BYTES + crypto_box_ZEROBYTES);
+  sa = alignedcalloc(crypto_box_BEFORENMBYTES);
+  sb = alignedcalloc(crypto_box_BEFORENMBYTES);
+}
+
+#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 (i = 0;i <= TIMINGS;++i) {
+      cycles[i] = cpucycles();
+      crypto_box_keypair(pka,ska);
+    }
+    for (i = 0;i < TIMINGS;++i) cycles[i] = cycles[i + 1] - cycles[i];
+    printentry(-1,"keypair_cycles",cycles,TIMINGS);
+
+    for (i = 0;i <= TIMINGS;++i) {
+      cycles[i] = cpucycles();
+      crypto_box_keypair(pkb,skb);
+    }
+    for (i = 0;i < TIMINGS;++i) cycles[i] = cycles[i + 1] - cycles[i];
+    printentry(-1,"keypair_cycles",cycles,TIMINGS);
+
+    for (i = 0;i <= TIMINGS;++i) {
+      cycles[i] = cpucycles();
+      crypto_box_beforenm(sa,pkb,ska);
+    }
+    for (i = 0;i < TIMINGS;++i) cycles[i] = cycles[i + 1] - cycles[i];
+    printentry(-1,"beforenm_cycles",cycles,TIMINGS);
+
+    for (i = 0;i <= TIMINGS;++i) {
+      cycles[i] = cpucycles();
+      crypto_box_beforenm(sb,pka,skb);
+    }
+    for (i = 0;i < TIMINGS;++i) cycles[i] = cycles[i + 1] - cycles[i];
+    printentry(-1,"beforenm_cycles",cycles,TIMINGS);
+
+    for (mlen = 0;mlen <= MAXTEST_BYTES;mlen += 1 + mlen / 8) {
+      randombytes(n,crypto_box_NONCEBYTES);
+      randombytes(m + crypto_box_ZEROBYTES,mlen);
+      randombytes(c,mlen + crypto_box_ZEROBYTES);
+
+      for (i = 0;i <= TIMINGS;++i) {
+        cycles[i] = cpucycles();
+        crypto_box(c,m,mlen + crypto_box_ZEROBYTES,n,pka,skb);
+      }
+      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_box_open(m,c,mlen + crypto_box_ZEROBYTES,n,pkb,ska);
+      }
+      for (i = 0;i < TIMINGS;++i) cycles[i] = cycles[i + 1] - cycles[i];
+      printentry(mlen,"open_cycles",cycles,TIMINGS);
+
+      ++c[crypto_box_ZEROBYTES];
+      for (i = 0;i <= TIMINGS;++i) {
+        cycles[i] = cpucycles();
+        crypto_box_open(m,c,mlen + crypto_box_ZEROBYTES,n,pkb,ska);
+      }
+      for (i = 0;i < TIMINGS;++i) cycles[i] = cycles[i + 1] - cycles[i];
+      printentry(mlen,"forgery_open_cycles",cycles,TIMINGS);
+
+      for (i = 0;i <= TIMINGS;++i) {
+        cycles[i] = cpucycles();
+        crypto_box_afternm(c,m,mlen + crypto_box_ZEROBYTES,n,sb);
+      }
+      for (i = 0;i < TIMINGS;++i) cycles[i] = cycles[i + 1] - cycles[i];
+      printentry(mlen,"afternm_cycles",cycles,TIMINGS);
+
+      for (i = 0;i <= TIMINGS;++i) {
+        cycles[i] = cpucycles();
+        crypto_box_open_afternm(m,c,mlen + crypto_box_ZEROBYTES,n,sa);
+      }
+      for (i = 0;i < TIMINGS;++i) cycles[i] = cycles[i + 1] - cycles[i];
+      printentry(mlen,"open_afternm_cycles",cycles,TIMINGS);
+
+      ++c[crypto_box_ZEROBYTES];
+      for (i = 0;i <= TIMINGS;++i) {
+        cycles[i] = cpucycles();
+        crypto_box_open_afternm(m,c,mlen + crypto_box_ZEROBYTES,n,sa);
+      }
+      for (i = 0;i < TIMINGS;++i) cycles[i] = cycles[i + 1] - cycles[i];
+      printentry(mlen,"forgery_open_afternm_cycles",cycles,TIMINGS);
+    }
+  }
+}