More size_t

2 files changed, 6 insertions, 6 deletions

diff --git a/src/mac/mac.cpp b/src/mac/mac.cpp
index cb89e872a..2ef4ab64c 100644
--- a/src/mac/mac.cpp
+++ b/src/mac/mac.cpp
@@ -6,21 +6,21 @@
 */
 
 #include <botan/mac.h>
+#include <botan/mem_ops.h>
 
 namespace Botan {
 
 /*
 * Default (deterministic) MAC verification operation
 */
-bool MessageAuthenticationCode::verify_mac(const byte mac[], u32bit length)
+bool MessageAuthenticationCode::verify_mac(const byte mac[], size_t length)
    {
    SecureVector<byte> our_mac = final();
+
    if(our_mac.size() != length)
       return false;
-   for(u32bit j = 0; j != length; ++j)
-      if(mac[j] != our_mac[j])
-         return false;
-   return true;
+
+   return same_mem(&our_mac[0], &mac[0], length);
    }
 
 }
diff --git a/src/mac/mac.h b/src/mac/mac.h
index 4518d91ad..1350c7d7a 100644
--- a/src/mac/mac.h
+++ b/src/mac/mac.h
@@ -27,7 +27,7 @@ class BOTAN_DLL MessageAuthenticationCode : public BufferedComputation,
       * @param length the length of param in
       * @return true if the MAC is valid, false otherwise
       */
-      virtual bool verify_mac(const byte in[], u32bit length);
+      virtual bool verify_mac(const byte in[], size_t length);
 
       /**
       * Get a new object representing the same algorithm as *this