Merge pull request bitmark-inc#9 from danielrbrowne/tech/refactor-api

API refactor

Author: anhnguyenbitmark

Sources/TweetNacl/Constant.swift

@@ -6,20 +6,36 @@
 //  Copyright © 2016 Bitmark. All rights reserved.
 //
 
-internal let crypto_secretbox_KEYBYTES = 32
-internal let crypto_secretbox_NONCEBYTES = 24
-internal let crypto_secretbox_ZEROBYTES = 32
-internal let crypto_secretbox_BOXZEROBYTES = 16
-internal let crypto_scalarmult_BYTES = 32
-internal let crypto_scalarmult_SCALARBYTES = 32
-internal let crypto_box_PUBLICKEYBYTES = 32
-internal let crypto_box_SECRETKEYBYTES = 32
-internal let crypto_box_BEFORENMBYTES = 32
-internal let crypto_box_NONCEBYTES = crypto_secretbox_NONCEBYTES
-internal let crypto_box_ZEROBYTES = crypto_secretbox_ZEROBYTES
-internal let crypto_box_BOXZEROBYTES = crypto_secretbox_BOXZEROBYTES
-internal let crypto_sign_BYTES = 64
-internal let crypto_sign_PUBLICKEYBYTES = 32
-internal let crypto_sign_SECRETKEYBYTES = 64
-internal let crypto_sign_SEEDBYTES = 32
-internal let crypto_hash_BYTES = 64
+struct Constants {
+    struct Box {
+        static let publicKeyBytes = 32
+        static let secretKeyBytes = 32
+        static let beforeNMBytes = 32
+        static let nonceBytes = Secretbox.nonceBytes
+        static let zeroBytes = Secretbox.zeroBytes
+        static let boxZeroBytes = Secretbox.boxZeroBytes
+    }
+
+    struct Hash {
+        static let bytes = 64
+    }
+
+    struct Scalarmult {
+        static let bytes = 32
+        static let scalarBytes = 32
+    }
+
+    struct Secretbox {
+        static let keyBytes = 32
+        static let nonceBytes = 24
+        static let zeroBytes = 32
+        static let boxZeroBytes = 16
+    }
+
+    struct Sign {
+        static let bytes = 64
+        static let publicKeyBytes = 32
+        static let secretKeyBytes = 64
+        static let seedBytes = 32
+    }
+}