RSA Private / Public Key Encryption in JS

[Benjamin Wanicur]

Hi Everyone

I've had a tough time finding a JS library that can handle the following scenario:

- The server is in possession of the private RSA key.

- The client side JS is in possession of the public RSA key.

The client should encrypt plain text using the public RSA key.  The server should decrypt the text using the private RSA key.  

I've seen a few libraries that seem to handle RSA encryption completely within a JS environment.  In my case the key pair has been generated by the server.  I'm using the standard Ruby Open::SSL library on the server.  Loading the public key into a JS string does not seem to work in the libraries I have tested.

Can someone recommend a library that would handle this scenario ?

Thanks

Ben W

[Jarrod Overson]

Never dealt with that before. There are node options (https://encrypted.google.com/search?q=rsa&q=site:npmjs.org) but many likely rely on local compiled libraries.

What are you doing, security wise, that can't be achieved by using SSL?

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Jarrod Overson

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[Joe Crawford]

What libraries have you tested?

This looks promising.

http://crypto.stanford.edu/sjcl/

Is there a sample key that can be tested with?

Joe

Joe Crawford
~ j...@artlung.com ~ +1.805-857-3951 ~ http://artlung.com/
~ twitter: @artlung ~ http://joecrawford.com/

On Tue, Apr 9, 2013 at 12:26 PM, Benjamin Wanicur <bwan...@gmail.com> wrote:

[Ben Wanicur]

I've recently tried out this one:

https://github.com/wwwtyro/cryptico

However, my co-worker has tried several others in the past.  I was just hoping someone out there might have the gold standard.  I'm beginning to suspect that does not exist (yet) in the JS library world.

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[Joe Crawford]

On Tue, Apr 9, 2013 at 1:55 PM, Ben Wanicur <bwan...@gmail.com> wrote:

I've recently tried out this one:

https://github.com/wwwtyro/cryptico

However, my co-worker has tried several others in the past.  I was just hoping someone out there might have the gold standard.  I'm beginning to suspect that does not exist (yet) in the JS library world.

Did you try the Stanford one?

http://crypto.stanford.edu/sjcl/ --> https://github.com/bitwiseshiftleft/sjcl

Joe