夜幕-JS逆向系列课 第9课练习题使用颜文字对 Javascript 代码进行混淆

夜幕-JS逆向系列课 第9课练习题使用颜文字对 Javascript 代码进行混淆/md5.js

@@ -0,0 +1,10 @@
+
+
+function t(t) {
+    t ? (f[0] = f[16] = f[1] = f[2] = f[3] = f[4] = f[5] = f[6] = f[7] = f[8] = f[9] = f[10] = f[11] = f[12] = f[13] =
+        f[14] = f[15] = 0, this.blocks = f) : this.blocks = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+        this.h0 = 1732584193, this.h1 = 4023233417, this.h2 = 2562383102, this.h3 = 271733878, this.h4 = 3285377520,
+        this.block = this.start = this.bytes = this.hBytes = 0, this.finalized = this.hashed = !1, this.first = !0
+}
+
+new t(!0).update("bdb8f0a2-a953-4c42-88bb-a929189c97b3MTY3NjQ1NDk2MTg=")["hex"]();

夜幕-JS逆向系列课 第9课练习题使用颜文字对 Javascript 代码进行混淆/测试.js

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+function Base64() {
+    // private property
+    _keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
+    // public method for encoding
+    this.encode = function (input) {
+        var output = "";
+        var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
+        var i = 0;
+        input = _utf8_encode(input);
+        while (i < input.length) {
+            chr1 = input.charCodeAt(i++);
+            chr2 = input.charCodeAt(i++);
+            chr3 = input.charCodeAt(i++);
+            enc1 = chr1 >> 2;
+            enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
+            enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
+            enc4 = chr3 & 63;
+            if (isNaN(chr2)) {
+                enc3 = enc4 = 64;
+            } else if (isNaN(chr3)) {
+                enc4 = 64;
+            }
+            output = output +
+                _keyStr.charAt(enc1) + _keyStr.charAt(enc2) +
+                _keyStr.charAt(enc3) + _keyStr.charAt(enc4);
+        }
+        return output;
+    };
+
+    // public method for decoding
+    this.decode = function (input) {
+        var output = "";
+        var chr1, chr2, chr3;
+        var enc1, enc2, enc3, enc4;
+        var i = 0;
+        input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
+        while (i < input.length) {
+            enc1 = _keyStr.indexOf(input.charAt(i++));
+            enc2 = _keyStr.indexOf(input.charAt(i++));
+            enc3 = _keyStr.indexOf(input.charAt(i++));
+            enc4 = _keyStr.indexOf(input.charAt(i++));
+            chr1 = (enc1 << 2) | (enc2 >> 4);
+            chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
+            chr3 = ((enc3 & 3) << 6) | enc4;
+            output = output + String.fromCharCode(chr1);
+            if (enc3 != 64) {
+                output = output + String.fromCharCode(chr2);
+            }
+            if (enc4 != 64) {
+                output = output + String.fromCharCode(chr3);
+            }
+        }
+        output = _utf8_decode(output);
+        return output;
+    };
+
+    // private method for UTF-8 encoding
+    _utf8_encode = function (string) {
+        string = string.replace(/\r\n/g, "\n");
+        var utftext = "";
+        for (var n = 0; n < string.length; n++) {
+            var c = string.charCodeAt(n);
+            if (c < 128) {
+                utftext += String.fromCharCode(c);
+            } else if ((c > 127) && (c < 2048)) {
+                utftext += String.fromCharCode((c >> 6) | 192);
+                utftext += String.fromCharCode((c & 63) | 128);
+            } else {
+                utftext += String.fromCharCode((c >> 12) | 224);
+                utftext += String.fromCharCode(((c >> 6) & 63) | 128);
+                utftext += String.fromCharCode((c & 63) | 128);
+            }
+
+        }
+        return utftext;
+    };
+
+    // private method for UTF-8 decoding
+    _utf8_decode = function (utftext) {
+        var string = "";
+        var i = 0;
+        var c = c1 = c2 = 0;
+        while (i < utftext.length) {
+            c = utftext.charCodeAt(i);
+            if (c < 128) {
+                string += String.fromCharCode(c);
+                i++;
+            } else if ((c > 191) && (c < 224)) {
+                c2 = utftext.charCodeAt(i + 1);
+                string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
+                i += 2;
+            } else {
+                c2 = utftext.charCodeAt(i + 1);
+                c3 = utftext.charCodeAt(i + 2);
+                string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
+                i += 3;
+            }
+        }
+        return string;
+    };
+};
+
+function uuid() {
+    var s = [];
+    var hexDigits = "0123456789abcdefghijklmnopqrstuvwxyz";
+    for (var i = 0; i < 36; i++) {
+        s[i] = hexDigits.substr(Math.floor(Math.random() * 0x10), 1);
+    }
+    s[14] = "4";
+    s[19] = hexDigits.substr((s[19] & 0x3) | 0x8, 1);
+    s[8] = s[13] = s[18] = s[23] = "-";
+    var uuid = s.join("");
+    return uuid;
+}
+
+function getparam() {
+    "use strict";
+    let base64 = new Base64();
+    let key = uuid();
+    let time = (Math.floor((new Date().getTime() + 10010) / 99)).toString();
+    console.log(key + base64.encode(time));
+    let sign = md5(key + base64.encode(time));
+    let param = {
+        "key": key,
+        "time": time,
+        "sign": sign
+    };
+    return param
+};
+
+console.log(getparam());