diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..5175345
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,16 @@
+[package]
+name = "crypto-tool"
+version = "0.0.1"
+authors = ["Hatter Jiang <jht5945@gmail.com>"]
+edition = "2018"
+readme = "README.md"
+repository = "https://git.hatter.ink/hatter/crypto-tool"
+license = "MIT"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+rust-crypto = "0.2.36"
+base64 = "0.11.0"
+urlencoding = "1.0.0"
+rust_util="0.2.0"
diff --git a/README.md b/README.md
index 1af458c..8197b9c 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,4 @@
 # crypto-tool
 
-Crypto Tool
\ No newline at end of file
+Crypto Tool
+
diff --git a/src/hmac.rs b/src/hmac.rs
new file mode 100644
index 0000000..b3b32f8
--- /dev/null
+++ b/src/hmac.rs
@@ -0,0 +1,23 @@
+use crypto::{
+    mac::{
+        Mac,
+        MacResult,
+    },
+    hmac::Hmac,
+    sha1::Sha1,
+    sha2::Sha256,
+};
+
+/// Caculte HMAC_SHA1
+pub fn calc_hmac_sha1(key: &[u8], message: &[u8]) -> MacResult {
+    let mut hmac = Hmac::new(Sha1::new(), key);
+    hmac.input(message);
+    hmac.result()
+}
+
+// Caculate HMAC_SHA256
+pub fn calc_hmac_sha256(key: &[u8], message: &[u8]) -> MacResult {
+    let mut hmac = Hmac::new(Sha256::new(), key);
+    hmac.input(message);
+    hmac.result()
+}
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..0968e66
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,3 @@
+
+/// HMac Utils
+pub mod hmac;