tor

commit 98736cf36a1d8250e53a0c86a0b80fdb75f0d551
parent ed62f0fa151f7a21a9634fbec1e95832ddbede94
Author: Nick Mathewson <nickm@torproject.org>
Date:   Thu,  3 Jan 2019 09:44:10 -0500

Merge remote-tracking branch 'public/ticket28838_035' into maint-0.3.5

Diffstat:
A
changes/ticket28838
 | 
8
++++++++
M
src/lib/crypt_ops/crypto_curve25519.c
 | 
2
+-

2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/changes/ticket28838 b/changes/ticket28838
@@ -0,0 +1,8 @@
+  o Minor features (performance):
+    - Remove about 96% of the work from the function that we run at
+      startup to test our curve25519_basepoint implementation.  Since
+      this function has yet to find an actual failure, we'll only
+      run it for 8 iterations instead of 200. Based on our profile
+      information, this change should save around 8% of our startup
+      time on typical desktops, and may have a similar effect on
+      other platforms.  Closes ticket 28838.
diff --git a/src/lib/crypt_ops/crypto_curve25519.c b/src/lib/crypt_ops/crypto_curve25519.c
@@ -289,7 +289,7 @@ curve25519_basepoint_spot_check(void)
     0x0d,0xbf,0x3a,0x0d,0x26,0x38,0x1a,0xf4,
     0xeb,0xa4,0xa9,0x8e,0xaa,0x9b,0x4e,0x6a
   };
-  const int loop_max=200;
+  const int loop_max=8;
   int save_use_ed = curve25519_use_ed;
   unsigned char e1[32], e2[32];
   unsigned char x[32],y[32];