Chrome extension - data encryption for storage in chrome storage

Question

I have a Chrome extension that stores some user data locally with an API . chrome.storage chrome.storage

So, we quote from the documentation:

Confidential user information should not be stored! The storage area is not encrypted.

In any case, I would like to encrypt my extension number before saving it, and I would like to know: Does Google provide a way to do this? And, if not, is there any other way?

Answer 1

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CryptoJS, /. , , , - :

var encrypted = CryptoJS.AES.encrypt("Message", "Secret Passphrase");
var decrypted = CryptoJS.AES.decrypt(encrypted, "Secret Passphrase");

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• JavascriptObfuscator
• JSObfuscate
• JScrambler ( )
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• .. ( Google)...

, , (1 jsobfuscate 1 javascriptobfuscator):

var _0x7390=["\x31\x20\x35\x3D\x30\x2E\x33\x2E\x37\x28\x22\x36\x22\x2C\x22\x34\x20\x32\x22\x29\x3B\x31\x20\x38\x3D\x30\x2E\x33\x2E\x39\x28\x35\x2C\x22\x34\x20\x32\x22\x29\x3B","\x7C","\x73\x70\x6C\x69\x74","\x43\x72\x79\x70\x74\x6F\x4A\x53\x7C\x76\x61\x72\x7C\x50\x61\x73\x73\x70\x68\x72\x61\x73\x65\x7C\x41\x45\x53\x7C\x53\x65\x63\x72\x65\x74\x7C\x65\x6E\x63\x72\x79\x70\x74\x65\x64\x7C\x4D\x65\x73\x73\x61\x67\x65\x7C\x65\x6E\x63\x72\x79\x70\x74\x7C\x64\x65\x63\x72\x79\x70\x74\x65\x64\x7C\x64\x65\x63\x72\x79\x70\x74","\x72\x65\x70\x6C\x61\x63\x65","","\x5C\x77\x2B","\x5C\x62","\x67"];eval(function (_0xf4e9x1,_0xf4e9x2,_0xf4e9x3,_0xf4e9x4,_0xf4e9x5,_0xf4e9x6){_0xf4e9x5=function (_0xf4e9x3){return _0xf4e9x3;} ;if(!_0x7390[5][_0x7390[4]](/^/,String)){while(_0xf4e9x3--){_0xf4e9x6[_0xf4e9x3]=_0xf4e9x4[_0xf4e9x3]||_0xf4e9x3;} ;_0xf4e9x4=[function (_0xf4e9x5){return _0xf4e9x6[_0xf4e9x5];} ];_0xf4e9x5=function (){return _0x7390[6];} ;_0xf4e9x3=1;} ;while(_0xf4e9x3--){if(_0xf4e9x4[_0xf4e9x3]){_0xf4e9x1=_0xf4e9x1[_0x7390[4]]( new RegExp(_0x7390[7]+_0xf4e9x5(_0xf4e9x3)+_0x7390[7],_0x7390[8]),_0xf4e9x4[_0xf4e9x3]);} ;} ;return _0xf4e9x1;} (_0x7390[0],10,10,_0x7390[3][_0x7390[2]](_0x7390[1]),0,{}));

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