Static webpage encryption using Javascript scripts

I saw someone asking about static webpage encryption two days ago and wrote this code.

Ideas:

Encryption:First, encrypt your key A with md5 to B, then use the unique B or source file S0 to get the target file S1, and store S1 in the js variable.

Decryption time: Ask for the key, and then perform the same operation as encryption.

Because md5 is used, I personally think that it cannot be cracked when there is no key, except for the brute force code)

Try it out. Haha:

The source code is as follows:

Source: Password: Encoded:

Save the source code as an HTML file and double-click it to view the effect.