Is it possible/feasible to SHA-256 hash user's email addresses in Marketo? | Community
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API_Dev
API_Dev
Level 2
July 13, 2018
Question

Is it possible/feasible to SHA-256 hash user's email addresses in Marketo?

  • July 13, 2018
  • 1 reply
  • 8457 views

I have a requirement where the client is asking to encrypt/hash users' email addresses in the unsubscribe link in any marketo email. Can we do this in Marketo, and if yes, then can anyone share their knowledge on how to implement this in Marketo? Would be a great help

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1 reply

SanfordWhiteman
SanfordWhiteman
Level 10
July 13, 2018

Yes, it is possible in a Velocity token. But I'd like to hear the full use case. This is a non-Marketo page unsubscribe page, I presume? What is the specific reason they can only compare hashes?

API_Dev
API_DevAuthor
Level 2
July 16, 2018

So the use case is that the unsubscribe page is non-marketo and when a user clicks on the unsubscribe link in the marketo email, the user's email address is passed along the mkto token, and the requirement is to encrypt that email address which will be further processed in the unsubscribe page as per the need (which I'm not fully aware of-meaning I don't know what operations they will have on that encrypted address). We only have the ask to encrypt the email address in that unsubscribe link.

SanfordWhiteman
SanfordWhiteman
Level 10
July 16, 2018

So they understand that SHA-256 is not reversible?  They already have a database with all the email address and their precomputed hashes? Or are they going to hash every email address in their db on-the-fly while searching (terrible idea)?

Please check this with them because I don't want to send you down a road that will end up being unusable.

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