add totp

totp/src/main.rs

@@ -0,0 +1,13 @@
+extern crate otpauth;
+extern crate time;
+
+use otpauth::TOTP;
+
+fn main() {
+    let auth = TOTP::new("python");
+    let timestamp1 = time::now().to_timespec().sec as usize;
+    let code = auth.generate(30, timestamp1);
+    let timestamp2 = time::now().to_timespec().sec as usize;
+    println!("code: {}", code);
+    assert_eq!(true, auth.verify(code, 30, timestamp2));
+}