Hi @Harbor V,

You have encoded the url parameter with EncodeUrl() function before generating the link so when you are trying to decrypt that Base64 parameter then first you need to decode that encoded parameter and make it exactly what it was before using the EncodeUrl().

Hi @Harbor V 

I think your requirement is when a person send a mail than in this mail you have a button like this:

1. you want to encrypted button link via crypto API and navigated to screen ??

If this is your requirement so its is not possible because when we navigate email to screen than you have only pass Screen URL  with some some Value like this

before encryption URL( You Need To Naviagte):

https://personal-bedrfblj.outsystemscloud.com/Home/Home?id=id

After Encryption URL

"wurhuefjkdjfdfhuefhuwehyfuehfcjvdcdvcncbvdfhnjxndughvncmnvcjvmcnbvnfcjmvncvncmvncvnc"

So its is not Valid link to Navigate Same screen and also you Can't decrypt this url or value outside outsystesm so email Via Encryption and description is not possible

You can used Crypto Api Inside the Outsystems application for encryption and description

Thanks

Md Mansur

Hi @Harbor V .
If you want to use the output of the CryptoAPI as an URL Parameter, you will need to convert it from Base64 into Base64URL.
https://base64.guru/standards/base64url

TL;DR; You will need to:

• Replace “+” by “-” (minus)
• Replace “/” by “_” (underline)
• Remove the "=" padding characters

Then, when receiving the value, you will need to convert it back from Base64URL into Base64:

• Replace “-” (minus) by “+”
• Replace “_” (underline) by “/”
• Calculate how many "=" padding characters are needed. You need to add as many as necessary to have the full string length be a multiple of 4.

Here's an example on how to properly calculate the padding necessary

Hope this helps,