initital commit

2021-09-15 09:58:01 +08:00
commit d46f96d263
90 changed files with 17509 additions and 0 deletions
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+(function(){
+
+var C = (typeof window === 'undefined') ? require('./Crypto').Crypto : window.Crypto;
+
+// Shortcuts
+var util = C.util,
+    charenc = C.charenc,
+    UTF8 = charenc.UTF8,
+    Binary = charenc.Binary;
+
+C.HMAC = function (hasher, message, key, options) {
+
+	// Convert to byte arrays
+	if (message.constructor == String) message = UTF8.stringToBytes(message);
+	if (key.constructor == String) key = UTF8.stringToBytes(key);
+	/* else, assume byte arrays already */
+
+	// Allow arbitrary length keys
+	if (key.length > hasher._blocksize * 4)
+		key = hasher(key, { asBytes: true });
+
+	// XOR keys with pad constants
+	var okey = key.slice(0),
+	    ikey = key.slice(0);
+	for (var i = 0; i < hasher._blocksize * 4; i++) {
+		okey[i] ^= 0x5C;
+		ikey[i] ^= 0x36;
+	}
+
+	var hmacbytes = hasher(okey.concat(hasher(ikey.concat(message), { asBytes: true })), { asBytes: true });
+
+	return options && options.asBytes ? hmacbytes :
+	       options && options.asString ? Binary.bytesToString(hmacbytes) :
+	       util.bytesToHex(hmacbytes);
+
+};
+
+})();