New constants UMAC_MIN_NONCE_SIZE and UMAC_MAX_NONCE_SIZE.

ChangeLog

+2014-04-26  Niels Möller  <nisse@lysator.liu.se>
+
+	* umac.h (UMAC_MIN_NONCE_SIZE, UMAC_MAX_NONCE_SIZE): New
+	constants.
+
 2014-04-25  Niels Möller  <nisse@lysator.liu.se>
 
 	* All hash-related files: Renamed all _DATA_SIZE constants to
 	_BLOCK_SIZE, for consistency. Old names kept for backwards
-	compatibility. 
+	compatibility.
 
 	* nettle.texinfo (CCM): Documentation for CCM mode, contributed by
 	Owen Kirby.

umac.h

@@ -75,6 +75,8 @@ extern "C" {
 #define UMAC96_DIGEST_SIZE 12
 #define UMAC128_DIGEST_SIZE 16
 #define UMAC_BLOCK_SIZE 1024
+#define UMAC_MIN_NONCE_SIZE 1
+#define UMAC_MAX_NONCE_SIZE AES_BLOCK_SIZE
 /* For backwards compatibility */
 #define UMAC_DATA_SIZE UMAC_BLOCK_SIZE