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Use escape and unescape to encode and decode strings. For example, "Hello" becomes "%u4F60%" after encryption. u597D", don’t you understand? If it is encrypted js, it can be decrypted and executed using the eval function at runtime.
Disadvantages: Numbers and English cannot be encrypted, and everyone knows the decryption method.
// 加密函数function compile(code) { var c=String.fromCharCode(code.charCodeAt(0)+code.length); for(var i=1;i<code.length;i++){ c+=String.fromCharCode(code.charCodeAt(i)+code.charCodeAt(i-1)); } return escape(c); } // 解密函数function uncompile(code) { code=unescape(code); var c=String.fromCharCode(code.charCodeAt(0)-code.length); for(var i=1;i<code.length;i++){ c+=String.fromCharCode(code.charCodeAt(i)-c.charCodeAt(i-1)); } return c; }
Use the script encoder Script Encoder produced by Microsoft to encode, add spaces, slashes, Tab and other characters to confuse the encoding... These encodings don't feel very elegant, so I won't go into them. . .
Search for these professional encryption methods by yourself...
Use escape and unescape to encode and decode strings. For example, "Hello" becomes "%u4F60%u597D" after encryption. You can't understand it. If it is encrypted js, it can be decrypted at runtime. Use the eval function to execute.
Disadvantages: Numbers and English cannot be encrypted, and everyone knows the decryption method.
// 加密函数function compile(code) { var c=String.fromCharCode(code.charCodeAt(0)+code.length); for(var i=1;i<code.length;i++){ c+=String.fromCharCode(code.charCodeAt(i)+code.charCodeAt(i-1)); } return escape(c); } // 解密函数function uncompile(code) { code=unescape(code); var c=String.fromCharCode(code.charCodeAt(0)-code.length); for(var i=1;i<code.length;i++){ c+=String.fromCharCode(code.charCodeAt(i)-c.charCodeAt(i-1)); } return c; }
Use the script encoder Script Encoder produced by Microsoft to encode, add spaces, slashes, Tab and other characters to confuse the encoding... These encodings don't feel very elegant, so I won't talk about them. . .
You can search for these professional encryption methods on the php Chinese website.
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