From 80e72db67765509be7f74464868c6b4b4a11b5c0 Mon Sep 17 00:00:00 2001
From: Isis Lovecruft <isis@patternsinthevoid.net>
Date: Sun, 30 Dec 2018 02:36:49 +0000
Subject: [PATCH] Create new module for constants.

---
 src/constants.rs | 31 +++++++++++++++++++++++++++++++
 src/ed25519.rs   | 27 ++++-----------------------
 src/lib.rs       |  1 +
 3 files changed, 36 insertions(+), 23 deletions(-)
 create mode 100644 src/constants.rs

diff --git a/src/constants.rs b/src/constants.rs
new file mode 100644
index 0000000..783ffb2
--- /dev/null
+++ b/src/constants.rs
@@ -0,0 +1,31 @@
+// -*- mode: rust; -*-
+//
+// This file is part of ed25519-dalek.
+// Copyright (c) 2017-2018 isis lovecruft
+// See LICENSE for licensing information.
+//
+// Authors:
+// - isis agora lovecruft <isis@patternsinthevoid.net>
+
+//! Common constants such as buffer sizes for keypairs and signatures.
+
+/// The length of a ed25519 `Signature`, in bytes.
+pub const SIGNATURE_LENGTH: usize = 64;
+
+/// The length of a ed25519 `SecretKey`, in bytes.
+pub const SECRET_KEY_LENGTH: usize = 32;
+
+/// The length of an ed25519 `PublicKey`, in bytes.
+pub const PUBLIC_KEY_LENGTH: usize = 32;
+
+/// The length of an ed25519 `Keypair`, in bytes.
+pub const KEYPAIR_LENGTH: usize = SECRET_KEY_LENGTH + PUBLIC_KEY_LENGTH;
+
+/// The length of the "key" portion of an "expanded" ed25519 secret key, in bytes.
+const EXPANDED_SECRET_KEY_KEY_LENGTH: usize = 32;
+
+/// The length of the "nonce" portion of an "expanded" ed25519 secret key, in bytes.
+const EXPANDED_SECRET_KEY_NONCE_LENGTH: usize = 32;
+
+/// The length of an "expanded" ed25519 key, `ExpandedSecretKey`, in bytes.
+pub const EXPANDED_SECRET_KEY_LENGTH: usize = EXPANDED_SECRET_KEY_KEY_LENGTH + EXPANDED_SECRET_KEY_NONCE_LENGTH;
diff --git a/src/ed25519.rs b/src/ed25519.rs
index 8622fcb..a4d82fc 100644
--- a/src/ed25519.rs
+++ b/src/ed25519.rs
@@ -1,11 +1,11 @@
 // -*- mode: rust; -*-
 //
 // This file is part of ed25519-dalek.
-// Copyright (c) 2017-2018 Isis Lovecruft
+// Copyright (c) 2017-2018 isis lovecruft
 // See LICENSE for licensing information.
 //
 // Authors:
-// - Isis Agora Lovecruft <isis@patternsinthevoid.net>
+// - isis agora lovecruft <isis@patternsinthevoid.net>
 
 //! A Rust implementation of ed25519 key generation, signing, and verification.
 
@@ -36,30 +36,11 @@ use curve25519_dalek::edwards::CompressedEdwardsY;
 use curve25519_dalek::edwards::EdwardsPoint;
 use curve25519_dalek::scalar::Scalar;
 
+pub use constants::*;
+
 use errors::SignatureError;
 use errors::InternalError;
 
-/// The length of a ed25519 `Signature`, in bytes.
-pub const SIGNATURE_LENGTH: usize = 64;
-
-/// The length of a ed25519 `SecretKey`, in bytes.
-pub const SECRET_KEY_LENGTH: usize = 32;
-
-/// The length of an ed25519 `PublicKey`, in bytes.
-pub const PUBLIC_KEY_LENGTH: usize = 32;
-
-/// The length of an ed25519 `Keypair`, in bytes.
-pub const KEYPAIR_LENGTH: usize = SECRET_KEY_LENGTH + PUBLIC_KEY_LENGTH;
-
-/// The length of the "key" portion of an "expanded" ed25519 secret key, in bytes.
-const EXPANDED_SECRET_KEY_KEY_LENGTH: usize = 32;
-
-/// The length of the "nonce" portion of an "expanded" ed25519 secret key, in bytes.
-const EXPANDED_SECRET_KEY_NONCE_LENGTH: usize = 32;
-
-/// The length of an "expanded" ed25519 key, `ExpandedSecretKey`, in bytes.
-pub const EXPANDED_SECRET_KEY_LENGTH: usize = EXPANDED_SECRET_KEY_KEY_LENGTH + EXPANDED_SECRET_KEY_NONCE_LENGTH;
-
 /// An EdDSA signature.
 ///
 /// # Note
diff --git a/src/lib.rs b/src/lib.rs
index 90510d4..72df455 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -261,6 +261,7 @@ extern crate serde;
 #[cfg(all(test, feature = "serde"))]
 extern crate bincode;
 
+mod constants;
 mod ed25519;
 
 pub mod errors;