Create Key button does nothing

[MichaelParticipant]

Hello,

I am attempting to create a key for migration on the receiving site.
I type a name and click create.
After a few seconds the name field resets and nothing happens.

[udadminKeymaster]

Hi Michael,

It’s likely that your PHP install is only able to create cryptographic keys very slowly, and runs out of time. This is possible if your PHP install does not have some common PHP modules.

To give it a better chance of succeeding, use the drop-down option for selecting the key size, and chooser a smaller key size. That will require less time.

David

[TimParticipant]

Hi same thing here, even 512 bits encryption doesn’t work!

[udadminKeymaster]

Hi,

What gets logged in your JavaScript console when you try?

David

[Mike WilkersonParticipant]

I’m experiencing the same problem with similar symptoms. Change the key description doesn’t help. Change the key size doesn’t help. There are no errors in the JavaScript console. Silent failure.

[udadminKeymaster]

Hi,

Key generation takes vastly longer on PHP installs without the PHP modules php-openssl or php-bcmath installed. Without them, lengthy complex cryptographic calculations have to be carried out manually. If even a 512-byte key (the smallest) does not work, then the best thing to do is get those PHP modules installed; or, use a different method for transporting the backup set from the source to destination websites (check the migration guide – step 3 – updraftplus.com/faqs/how-do-i-migrate-to-a-new-site-location/ – there are 3 other methods).

David

[Mike WilkersonParticipant]

Update: it worked. I’m not sure what changed. I certainly didn’t change any PHP modules. I did check PHP and Apache error logs and found nothing. But after re-loading the Updraft admin settings page and trying again it worked with the normal/recommended key length, and quickly.

So I’m glad that it worked. I’m concerned about why it failed silently before. But since it did eventually work quickly, it doesn’t seem like the PHP module issue would have been a factor in the previous silent failure, would it?

[Mike WilkersonParticipant]

I could send phpinfo() output if helpful.

[udadminKeymaster]

Since it’s to do with long, complex caluclations which may run out of time, it’s likely that your server was less loaded when you tried it, and was able to provide more resources that time.

David

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