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javascriptpythonencryptionrsa

Translate JavaScript code of RSA encryption to Python

I have this JavaScript code to encrypt text using RSA, and I need one que generates the same encrypted message, but that works with Python.

JavaScript code I'm using:

var key = new RSAKeyPair(
        "2f9ac975a8a20c1b108e678904b42aa1",
        "",
        "4a5670127da1fd4e2a51685faff367f9"
        );
...

I'm having trouble finding an equivalent in Python because the parameter "modulus" present in the code builder in JavaScript, which I did not find in Python-RSA library.

I need to rewrite the JS code or is there some simpler alternative?

Solution

  • Both private and public keys contain the modulus n. The public key contains the modulus and the encryption (public) exponent e, the private key contains the modulus and the decryption (private) exponent d.

    So what you have to do is to simply extract the three values n, d, e from the keys. Presumably, the python module does that itself.

    On how to find the modulus: https://crypto.stackexchange.com/questions/18031/the-modulus-of-rsa-public-key

    General explanation of RSA:

    http://en.wikipedia.org/wiki/RSA_%28cryptosystem%29