I want to implement a feature on my website that will hold private client data.

I want to promote this feature, but how can I give my clients a guarantee or proof that their data are encrypted and that even me cannot have a look at it?

I mean, is there any way they can be sure of what I claim on my website?

  • 1
    Do you encrypt on the client-side (with JavaScript) or on the server-side?
    – unor
    Commented Jul 14, 2016 at 20:32
  • When I say encryption, I don't just mean the data transit, but also the data storage. Meaning that their data will remain private and unseen from top to bottom, even from me or database admins.
    – GianT971
    Commented Jul 15, 2016 at 22:29
  • So that means you encrypt with JavaScript on the client-side, correct? How do users decrypt the data?
    – unor
    Commented Jul 15, 2016 at 23:08

1 Answer 1


I recommend having a third party come and audit your systems and provide you a summary of compliance, which you can share with your customers. When I say third party, I mean a separate security company that specialise in IT security audits.

ISO27001 compliance is normally a good place to start when seeking to prove security controls are in place. It doesn't touch much on encryption however.

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