如何从 JavaScript CryptoJS.AES.encrypt() 解密密码

Question

I have the following javascript code CryptoJS to encrypt the variable n :

var l;
var n="190.207.78.120";
return l=D.enc.Base64.parse(btoa("AD7552C821266C8255348F726CAB9589")),D.AES.encrypt(n,l,{mode:D.mode.ECB,padding:D.pad.Pkcs7}).toString();

Output:

IV9Ada02dMtXNr8zDfZDUA==

The variable l is my password but when I try to display it with console.log(l) it is an object:

sigBytes:32, words: [1094989621, 892486456, 842084918, 910374962, 892678964, 944125746, 910377282, 959789113]

In the same way I can decrypt with the following code:

var l;
var n="IV9Ada02dMtXNr8zDfZDUA==";
return l=D.enc.Base64.parse(btoa("AD7552C821266C8255348F726CAB9589")),D.AES.decrypt(n,l,{mode:D.mode.ECB,padding:D.pad.Pkcs7}).toString(D.enc.Utf8);

Output:

190.207.78.120

How can I extract the password with which the variable n is encrypted or decrypted?

Answer 1

You can't. You didn't encrypt the password, but the variable n , the password is used to encrypt/decrypt, but is not encrypted itself.

UPDATE: If by "decrypting the password" you mean to simply display the integer array you got there as a string, that's a different issue and very much depends on what you want the result to look like (for example a HEX string or a ASCII string).

(Possible duplicate of Word Array to String )