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authorMicah Anderson <micah@riseup.net>2013-08-22 16:39:52 -0400
committerMicah Anderson <micah@riseup.net>2013-08-22 16:57:38 -0400
commit6d35b188b668c5007409e63a15e8340ed34dcfb8 (patch)
treec9dd25f3675b3b6f9b29b0786057f8a4d377bc2b /src-ed25519/supercop-ref/verify.c
parent86a1089dc6694f58d0f3356bdf9c8fe4061421f5 (diff)
parent5e60e0e3af85f22aa0afe8bf0ecf85619afacfeb (diff)
Merge tag 'upstream/0.6.0.12'
Upstream version 0.6.0.12
Diffstat (limited to 'src-ed25519/supercop-ref/verify.c')
-rw-r--r--src-ed25519/supercop-ref/verify.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/src-ed25519/supercop-ref/verify.c b/src-ed25519/supercop-ref/verify.c
new file mode 100644
index 0000000..a04186b
--- /dev/null
+++ b/src-ed25519/supercop-ref/verify.c
@@ -0,0 +1,40 @@
+#include "crypto_verify_32.h"
+
+int crypto_verify_32(const unsigned char *x,const unsigned char *y)
+{
+ unsigned int differentbits = 0;
+#define F(i) differentbits |= x[i] ^ y[i];
+ F(0)
+ F(1)
+ F(2)
+ F(3)
+ F(4)
+ F(5)
+ F(6)
+ F(7)
+ F(8)
+ F(9)
+ F(10)
+ F(11)
+ F(12)
+ F(13)
+ F(14)
+ F(15)
+ F(16)
+ F(17)
+ F(18)
+ F(19)
+ F(20)
+ F(21)
+ F(22)
+ F(23)
+ F(24)
+ F(25)
+ F(26)
+ F(27)
+ F(28)
+ F(29)
+ F(30)
+ F(31)
+ return (1 & ((differentbits - 1) >> 8)) - 1;
+}