diff --git a/js/md5.js b/js/md5.js
index f92ba37..79bbd5a 100644
--- a/js/md5.js
+++ b/js/md5.js
@@ -7,7 +7,7 @@
  *
  * Licensed under the MIT license:
  * http://www.opensource.org/licenses/MIT
- * 
+ *
  * Based on
  * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
  * Digest Algorithm, as defined in RFC 1321.
@@ -251,23 +251,33 @@
         return rstr2hex(raw_hmac_md5(k, d));
     }
 
-    function md5(string, key, raw) {
+    function md5(data, key, raw) {
+        if (typeof data === 'object') {
+            data = JSON.stringify(data);
+        }
+
+        if (typeof data === 'function') {
+            data = data.toString();
+        }
+
         if (!key) {
             if (!raw) {
-                return hex_md5(string);
+                return hex_md5(data);
             }
-            return raw_md5(string);
+            return raw_md5(data);
         }
         if (!raw) {
-            return hex_hmac_md5(key, string);
+            return hex_hmac_md5(key, data);
         }
-        return raw_hmac_md5(key, string);
+        return raw_hmac_md5(key, data);
     }
 
     if (typeof define === 'function' && define.amd) {
         define(function () {
             return md5;
         });
+    } else if (typeof module === 'object' && module.exports) {
+        module.exports = md5;
     } else {
         $.md5 = md5;
     }
diff --git a/js/md5.min.js b/js/md5.min.js
index a571fa1..04e1644 100644
--- a/js/md5.min.js
+++ b/js/md5.min.js
@@ -1 +1 @@
-!function(n){"use strict";function t(n,t){var r=(65535&n)+(65535&t),e=(n>>16)+(t>>16)+(r>>16);return e<<16|65535&r}function r(n,t){return n<<t|n>>>32-t}function e(n,e,u,o,c,f){return t(r(t(t(e,n),t(o,f)),c),u)}function u(n,t,r,u,o,c,f){return e(t&r|~t&u,n,t,o,c,f)}function o(n,t,r,u,o,c,f){return e(t&u|r&~u,n,t,o,c,f)}function c(n,t,r,u,o,c,f){return e(t^r^u,n,t,o,c,f)}function f(n,t,r,u,o,c,f){return e(r^(t|~u),n,t,o,c,f)}function i(n,r){n[r>>5]|=128<<r%32,n[(r+64>>>9<<4)+14]=r;var e,i,a,h,d,g=1732584193,l=-271733879,v=-1732584194,C=271733878;for(e=0;e<n.length;e+=16)i=g,a=l,h=v,d=C,g=u(g,l,v,C,n[e],7,-680876936),C=u(C,g,l,v,n[e+1],12,-389564586),v=u(v,C,g,l,n[e+2],17,606105819),l=u(l,v,C,g,n[e+3],22,-1044525330),g=u(g,l,v,C,n[e+4],7,-176418897),C=u(C,g,l,v,n[e+5],12,1200080426),v=u(v,C,g,l,n[e+6],17,-1473231341),l=u(l,v,C,g,n[e+7],22,-45705983),g=u(g,l,v,C,n[e+8],7,1770035416),C=u(C,g,l,v,n[e+9],12,-1958414417),v=u(v,C,g,l,n[e+10],17,-42063),l=u(l,v,C,g,n[e+11],22,-1990404162),g=u(g,l,v,C,n[e+12],7,1804603682),C=u(C,g,l,v,n[e+13],12,-40341101),v=u(v,C,g,l,n[e+14],17,-1502002290),l=u(l,v,C,g,n[e+15],22,1236535329),g=o(g,l,v,C,n[e+1],5,-165796510),C=o(C,g,l,v,n[e+6],9,-1069501632),v=o(v,C,g,l,n[e+11],14,643717713),l=o(l,v,C,g,n[e],20,-373897302),g=o(g,l,v,C,n[e+5],5,-701558691),C=o(C,g,l,v,n[e+10],9,38016083),v=o(v,C,g,l,n[e+15],14,-660478335),l=o(l,v,C,g,n[e+4],20,-405537848),g=o(g,l,v,C,n[e+9],5,568446438),C=o(C,g,l,v,n[e+14],9,-1019803690),v=o(v,C,g,l,n[e+3],14,-187363961),l=o(l,v,C,g,n[e+8],20,1163531501),g=o(g,l,v,C,n[e+13],5,-1444681467),C=o(C,g,l,v,n[e+2],9,-51403784),v=o(v,C,g,l,n[e+7],14,1735328473),l=o(l,v,C,g,n[e+12],20,-1926607734),g=c(g,l,v,C,n[e+5],4,-378558),C=c(C,g,l,v,n[e+8],11,-2022574463),v=c(v,C,g,l,n[e+11],16,1839030562),l=c(l,v,C,g,n[e+14],23,-35309556),g=c(g,l,v,C,n[e+1],4,-1530992060),C=c(C,g,l,v,n[e+4],11,1272893353),v=c(v,C,g,l,n[e+7],16,-155497632),l=c(l,v,C,g,n[e+10],23,-1094730640),g=c(g,l,v,C,n[e+13],4,681279174),C=c(C,g,l,v,n[e],11,-358537222),v=c(v,C,g,l,n[e+3],16,-722521979),l=c(l,v,C,g,n[e+6],23,76029189),g=c(g,l,v,C,n[e+9],4,-640364487),C=c(C,g,l,v,n[e+12],11,-421815835),v=c(v,C,g,l,n[e+15],16,530742520),l=c(l,v,C,g,n[e+2],23,-995338651),g=f(g,l,v,C,n[e],6,-198630844),C=f(C,g,l,v,n[e+7],10,1126891415),v=f(v,C,g,l,n[e+14],15,-1416354905),l=f(l,v,C,g,n[e+5],21,-57434055),g=f(g,l,v,C,n[e+12],6,1700485571),C=f(C,g,l,v,n[e+3],10,-1894986606),v=f(v,C,g,l,n[e+10],15,-1051523),l=f(l,v,C,g,n[e+1],21,-2054922799),g=f(g,l,v,C,n[e+8],6,1873313359),C=f(C,g,l,v,n[e+15],10,-30611744),v=f(v,C,g,l,n[e+6],15,-1560198380),l=f(l,v,C,g,n[e+13],21,1309151649),g=f(g,l,v,C,n[e+4],6,-145523070),C=f(C,g,l,v,n[e+11],10,-1120210379),v=f(v,C,g,l,n[e+2],15,718787259),l=f(l,v,C,g,n[e+9],21,-343485551),g=t(g,i),l=t(l,a),v=t(v,h),C=t(C,d);return[g,l,v,C]}function a(n){var t,r="";for(t=0;t<32*n.length;t+=8)r+=String.fromCharCode(255&n[t>>5]>>>t%32);return r}function h(n){var t,r=[];for(r[(n.length>>2)-1]=void 0,t=0;t<r.length;t+=1)r[t]=0;for(t=0;t<8*n.length;t+=8)r[t>>5]|=(255&n.charCodeAt(t/8))<<t%32;return r}function d(n){return a(i(h(n),8*n.length))}function g(n,t){var r,e,u=h(n),o=[],c=[];for(o[15]=c[15]=void 0,u.length>16&&(u=i(u,8*n.length)),r=0;16>r;r+=1)o[r]=909522486^u[r],c[r]=1549556828^u[r];return e=i(o.concat(h(t)),512+8*t.length),a(i(c.concat(e),640))}function l(n){var t,r,e="0123456789abcdef",u="";for(r=0;r<n.length;r+=1)t=n.charCodeAt(r),u+=e.charAt(15&t>>>4)+e.charAt(15&t);return u}function v(n){return unescape(encodeURIComponent(n))}function C(n){return d(v(n))}function m(n){return l(C(n))}function s(n,t){return g(v(n),v(t))}function A(n,t){return l(s(n,t))}function p(n,t,r){return t?r?s(t,n):A(t,n):r?C(n):m(n)}"function"==typeof define&&define.amd?define(function(){return p}):n.md5=p}(this);
\ No newline at end of file
+!function(a){"use strict";function b(a,b){var c=(65535&a)+(65535&b),d=(a>>16)+(b>>16)+(c>>16);return d<<16|65535&c}function c(a,b){return a<<b|a>>>32-b}function d(a,d,e,f,g,h){return b(c(b(b(d,a),b(f,h)),g),e)}function e(a,b,c,e,f,g,h){return d(b&c|~b&e,a,b,f,g,h)}function f(a,b,c,e,f,g,h){return d(b&e|c&~e,a,b,f,g,h)}function g(a,b,c,e,f,g,h){return d(b^c^e,a,b,f,g,h)}function h(a,b,c,e,f,g,h){return d(c^(b|~e),a,b,f,g,h)}function i(a,c){a[c>>5]|=128<<c%32,a[(c+64>>>9<<4)+14]=c;var d,i,j,k,l,m=1732584193,n=-271733879,o=-1732584194,p=271733878;for(d=0;d<a.length;d+=16)i=m,j=n,k=o,l=p,m=e(m,n,o,p,a[d],7,-680876936),p=e(p,m,n,o,a[d+1],12,-389564586),o=e(o,p,m,n,a[d+2],17,606105819),n=e(n,o,p,m,a[d+3],22,-1044525330),m=e(m,n,o,p,a[d+4],7,-176418897),p=e(p,m,n,o,a[d+5],12,1200080426),o=e(o,p,m,n,a[d+6],17,-1473231341),n=e(n,o,p,m,a[d+7],22,-45705983),m=e(m,n,o,p,a[d+8],7,1770035416),p=e(p,m,n,o,a[d+9],12,-1958414417),o=e(o,p,m,n,a[d+10],17,-42063),n=e(n,o,p,m,a[d+11],22,-1990404162),m=e(m,n,o,p,a[d+12],7,1804603682),p=e(p,m,n,o,a[d+13],12,-40341101),o=e(o,p,m,n,a[d+14],17,-1502002290),n=e(n,o,p,m,a[d+15],22,1236535329),m=f(m,n,o,p,a[d+1],5,-165796510),p=f(p,m,n,o,a[d+6],9,-1069501632),o=f(o,p,m,n,a[d+11],14,643717713),n=f(n,o,p,m,a[d],20,-373897302),m=f(m,n,o,p,a[d+5],5,-701558691),p=f(p,m,n,o,a[d+10],9,38016083),o=f(o,p,m,n,a[d+15],14,-660478335),n=f(n,o,p,m,a[d+4],20,-405537848),m=f(m,n,o,p,a[d+9],5,568446438),p=f(p,m,n,o,a[d+14],9,-1019803690),o=f(o,p,m,n,a[d+3],14,-187363961),n=f(n,o,p,m,a[d+8],20,1163531501),m=f(m,n,o,p,a[d+13],5,-1444681467),p=f(p,m,n,o,a[d+2],9,-51403784),o=f(o,p,m,n,a[d+7],14,1735328473),n=f(n,o,p,m,a[d+12],20,-1926607734),m=g(m,n,o,p,a[d+5],4,-378558),p=g(p,m,n,o,a[d+8],11,-2022574463),o=g(o,p,m,n,a[d+11],16,1839030562),n=g(n,o,p,m,a[d+14],23,-35309556),m=g(m,n,o,p,a[d+1],4,-1530992060),p=g(p,m,n,o,a[d+4],11,1272893353),o=g(o,p,m,n,a[d+7],16,-155497632),n=g(n,o,p,m,a[d+10],23,-1094730640),m=g(m,n,o,p,a[d+13],4,681279174),p=g(p,m,n,o,a[d],11,-358537222),o=g(o,p,m,n,a[d+3],16,-722521979),n=g(n,o,p,m,a[d+6],23,76029189),m=g(m,n,o,p,a[d+9],4,-640364487),p=g(p,m,n,o,a[d+12],11,-421815835),o=g(o,p,m,n,a[d+15],16,530742520),n=g(n,o,p,m,a[d+2],23,-995338651),m=h(m,n,o,p,a[d],6,-198630844),p=h(p,m,n,o,a[d+7],10,1126891415),o=h(o,p,m,n,a[d+14],15,-1416354905),n=h(n,o,p,m,a[d+5],21,-57434055),m=h(m,n,o,p,a[d+12],6,1700485571),p=h(p,m,n,o,a[d+3],10,-1894986606),o=h(o,p,m,n,a[d+10],15,-1051523),n=h(n,o,p,m,a[d+1],21,-2054922799),m=h(m,n,o,p,a[d+8],6,1873313359),p=h(p,m,n,o,a[d+15],10,-30611744),o=h(o,p,m,n,a[d+6],15,-1560198380),n=h(n,o,p,m,a[d+13],21,1309151649),m=h(m,n,o,p,a[d+4],6,-145523070),p=h(p,m,n,o,a[d+11],10,-1120210379),o=h(o,p,m,n,a[d+2],15,718787259),n=h(n,o,p,m,a[d+9],21,-343485551),m=b(m,i),n=b(n,j),o=b(o,k),p=b(p,l);return[m,n,o,p]}function j(a){var b,c="";for(b=0;b<32*a.length;b+=8)c+=String.fromCharCode(255&a[b>>5]>>>b%32);return c}function k(a){var b,c=[];for(c[(a.length>>2)-1]=void 0,b=0;b<c.length;b+=1)c[b]=0;for(b=0;b<8*a.length;b+=8)c[b>>5]|=(255&a.charCodeAt(b/8))<<b%32;return c}function l(a){return j(i(k(a),8*a.length))}function m(a,b){var c,g,d=k(a),e=[],f=[];for(e[15]=f[15]=void 0,d.length>16&&(d=i(d,8*a.length)),c=0;16>c;c+=1)e[c]=909522486^d[c],f[c]=1549556828^d[c];return g=i(e.concat(k(b)),512+8*b.length),j(i(f.concat(g),640))}function n(a){var d,e,b="0123456789abcdef",c="";for(e=0;e<a.length;e+=1)d=a.charCodeAt(e),c+=b.charAt(15&d>>>4)+b.charAt(15&d);return c}function o(a){return unescape(encodeURIComponent(a))}function p(a){return l(o(a))}function q(a){return n(p(a))}function r(a,b){return m(o(a),o(b))}function s(a,b){return n(r(a,b))}function t(a,b,c){return"object"==typeof a&&(a=JSON.stringify(a)),"function"==typeof a&&(a=a.toString()),b?c?r(b,a):s(b,a):c?p(a):q(a)}"function"==typeof define&&define.amd?define(function(){return t}):"object"==typeof module&&module.exports?module.exports=t:a.md5=t}(this);