OpenSSL decryption in JavaScript

Question

I have a PHP webpage, where I use OpenSSL to encrypt a text in PHP (openssl_private_decrypt).

Encripted text:

bhYtdNghwutjxqgHg8AoyebLm5AY+X/4GLNzzb0PVuyiUX2QKwwDBXH4kVQFJIqUUrm6nYGk740wWkSoAMzygA==
Public key: -----BEGIN PUBLIC KEY-----MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAMYQWDqtLgDKlQvWzacGeBMQpbicd/uoXAvgLNpFZLM7zuYFDhrYncRsl8LIHK0K3f7e1aFmUVgM4LrKU2WFIw0CAwEAAQ==-----END PUBLIC KEY-----

I don't know how to decrypt it in a browser in JavaScript. I'm looking for some code or library, which I can decode it.

Why are you doing this manually instead of letting the browser and web server handle it automatically by using HTTPS? — Quentin
– Quentin, Commented Nov 20, 2012 at 12:02

CedricYao · Accepted Answer · 2019-10-16 06:12:52Z

4

I found the answer:

I found an encryption algorithm in this page:
https://github.com/ziyan/javascript-rsa (You need the rsa.js and jsbn.js)
But it only contains the encryption algorithm, and some characters are encrypted bad.

I have written a decryption code into the js, and changed the code that makes an error in the encryption.

And you'll need the following libraries from here!

prng4.js
rng.js

Finally you should change the following text for this:

var RSA = {
   ...
}

I hope it can help somebody.
Horbert

edited Oct 16, 2019 at 6:12

CedricYao

1891 silver badge13 bronze badges

answered Jul 17, 2013 at 9:35

Horbert

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Comments

dlongley · Accepted Answer · 2013-07-28 17:39:31Z

2

You may want to try out forge as well -- it does RSA encryption/decryption and more. There are lots of examples on the README:

https://github.com/digitalbazaar/forge

answered Jul 28, 2013 at 17:39

dlongley

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Comments

user3453268 · Accepted Answer · 2014-03-24 14:18:40Z

0

What you could also use is our NoSSL, it is open-source and free for private/non-commercial use: http://www.nossl.net There is also an Indiegogo campaign right now: http://www.indiegogo.com/projects/nossl-security-for-your-website/x/6399437

answered Mar 24, 2014 at 14:18

user3453268

1

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