From 8c68caec51a070d3c0a565005fa2e63b494724e3 Mon Sep 17 00:00:00 2001
From: Song Shiyue <shiyue.job@gmail.com>
Date: Mon, 11 Dec 2017 16:19:42 +0800
Subject: [PATCH] Added "hmac" to interface Hash.

---
 index.d.ts | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/index.d.ts b/index.d.ts
index 3ac12ed..da11b96 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -53,6 +53,14 @@ interface Hash {
    * @param message The message you want to hash.
    */
   update(message: Message): Hasher;
+
+  /**
+   * Computes a Hash-based message authentication code (HMAC) using a secret key
+   *
+   * @param secretKey The Secret Key
+   * @param message The message you want to hash.
+   */
+  hmac(secretKey: string, message: Message): string;
 }
 
 export var sha256: Hash;