1 files changed, 30 insertions, 5 deletions

diff --git a/src/lib/libcrypto/aes/aes_ctr.c b/src/lib/libcrypto/aes/aes_ctr.c
index f36982be1e..79e1c18f19 100644
--- a/src/lib/libcrypto/aes/aes_ctr.c
+++ b/src/lib/libcrypto/aes/aes_ctr.c
@@ -59,7 +59,7 @@
 #include <openssl/aes.h>
 #include "aes_locl.h"
 
-/* NOTE: the IV/counter CTR mode is big-endian.  The rest of the AES code
+/* NOTE: CTR mode is big-endian.  The rest of the AES code
  * is endian-neutral. */
 
 /* increment counter (128-bit int) by 1 */
@@ -67,36 +67,61 @@ static void AES_ctr128_inc(unsigned char *counter) {
         unsigned long c;
 
         /* Grab bottom dword of counter and increment */
+#ifdef L_ENDIAN
+        c = GETU32(counter +  0);
+        c++;
+        PUTU32(counter +  0, c);
+#else
         c = GETU32(counter + 12);
-        c++;    c &= 0xFFFFFFFF;
+        c++;
         PUTU32(counter + 12, c);
+#endif
 
         /* if no overflow, we're done */
         if (c)
                 return;
 
         /* Grab 1st dword of counter and increment */
+#ifdef L_ENDIAN
+        c = GETU32(counter +  4);
+        c++;
+        PUTU32(counter +  4, c);
+#else
         c = GETU32(counter +  8);
-        c++;    c &= 0xFFFFFFFF;
+        c++;
         PUTU32(counter +  8, c);
+#endif
 
         /* if no overflow, we're done */
         if (c)
                 return;
 
         /* Grab 2nd dword of counter and increment */
+#ifdef L_ENDIAN
+        c = GETU32(counter +  8);
+        c++;
+        PUTU32(counter +  8, c);
+#else
         c = GETU32(counter +  4);
-        c++;    c &= 0xFFFFFFFF;
+        c++;
         PUTU32(counter +  4, c);
+#endif
 
         /* if no overflow, we're done */
         if (c)
                 return;
 
         /* Grab top dword of counter and increment */
+#ifdef L_ENDIAN
+        c = GETU32(counter + 12);
+        c++;
+        PUTU32(counter + 12, c);
+#else
         c = GETU32(counter +  0);
-        c++;    c &= 0xFFFFFFFF;
+        c++;
         PUTU32(counter +  0, c);
+#endif
+
 }
 
 /* The input encrypted as though 128bit counter mode is being