Digital Workshop

Hi

I am working on a project and am hopeful that Forum colleagues or DW can help.

I am trying to securely encrypt text files (.txt) generated in a pub. Since the end-user would be creating these in runtime to contain health sensitive data so that the text file could be shared with other family members or their physician, the files need to be encrypted at a standard meeting AES 128.

Opus encrypts text files, but there is no way of knowing what level of encryption or security is used. Is the Opus applied encryption less than AES 128? Does the Opus encryption use an "industry standard" algorithm? If so, which one? If the encryption already available in Opus meets AES 128, then it can be relied on as a reasonable means (as with all encryption, not perfect) to secure this data.

The pub is a data collection form that is given away free to help others collect, organize and securely share their family health histories. So, while not commercial, there is also no ability to purchase a commercial license to redistribute an additional encryption program within the setup, etc.

Any ideas, help would be greatly appreciated.

Kind Regards,

I just came across this developer. Steganos. Has Locknote which is an App and a document all-in one. AES256

https://www.steganos.com/us/products/ho ... /overview/

It will be some time before I get around to testing it or playing with it. But here are some thoughts.

-- possibly create a canned document with 'seed' data. Then user just overwrites.
-- distribute the password with or in Opus. (maybe other ways?)
-- it's a GNU license, so I wonder what issues are for embedding the encrypted doc in a Pub.
-- If Opus has to launch the application, perhaps you could manage that inside a separate Chapter and have it in an off-screen window. How to handle 'saves' and closing the app... ?

Good luck. Post back here if you figure out any uses for this.

[Edit 9/13 -- added info] Also found another, similar. fSekrit. "Self contained fSekrit note files are tiny! Only 60k plus the size of your text." Is also AES256. Free to redistribute (with author note).
http://www.donationcoder.com/Software/Other/fSekrit/

Hi Lar,

Just to let you know that this problem was solved using a DLL called one crypt with is avialble for about $20. It provides AES256 bit encryption and is simple to use with Opus VI new DLL call function.

Big thanks to Stephen for the google time spend looking for this DLL.

Mack

Hi

And OneCrypt's developer is open to customizing this DLL, also creating other DLL's that would work seamlessly with Opus for other functions.

Kind Regards,

1crypt looks interesting if you don't mind shipping an extra DLL with your app and like the variable length hex output.
I required a fixed length output string to make it easier to parse and split, so I ported an AES function into Opus that gives me a 128bit AES string 32 characters long.
Opusscript is very flexible if you are prepared to write a few extra functions to get around some restrictions of the language.

cheers
Paul

Hi Paul

What you've done sounds quite interesting.

Kind Regards,