FMS server-side public key encryption

[mmah-umd]

I want to be able to check file signatures in server-side processing using FMS. Are there public key encryption libraries available for FMS?

[Guest]

FMS doesn't have any built in libraries for this, but since server side actionscript is javascript (spidermonkey 1.7), you can use just about any existing javascript library you need. If you're talking RSA, there are a ton of existing libs out there.

Keep in mind that there is only one javascript thread per application instance, so if your keys are huge and take a lot of compute time to decode, it will really slow your application down, and performance may not be all that good.

[mmah-umd]

Has anyone actually done this? I am revisiting this issue again.

I am trying to port jsrsasign to work on FMS/AMS. I have gotten past the browser-specific issues and gotten all of the requisite javascript files to load correctly by putting the load commands in an order to get the dependencies correct.

Now when I try to actually instantiate the signature class KJUR.crypto.Signature, the application hangs and nothing further is executed. There are no messages of any kind.

[mmah-umd]

jscrypto also has serious problems.

https://code.google.com/p/jscryptolib/

The elliptic curve implementation is missing values entirely, so I can't expect them to run. The RSA implementation complains about phantom characters.

Can anyone point me to a library that has been known to work?

[mmah-umd]

I have posted this as a feature request:

https://bugbase.adobe.com/index.cfm?event=bug&id=3667928