How to create SSL p12 certificate for VK?

Have certificates .kry, .ca , .crt , .pem.
It's on my hosting. Made using Let's Encrypt.

Of this to make SSL for Callback API VK in p12 format?
March 23rd 20 at 19:25
1 answer
March 23rd 20 at 19:27
openssl pkcs12 -export -out server.p12 -inkey server.key-in server.crt-certfile CACert.crt


The first link in Google:
https://pubs.vmware.com/view-51/index.jsp?topic=%2...
5cf97209ec979800950555.png

Brings up this error
(password not set) - jacklyn.White commented on March 23rd 20 at 19:30
@jacklyn.White, but in the instructions they have that? - Pat.Gibson22 commented on March 23rd 20 at 19:33
@Pat.Gibson22, the instructions did too. Still error - jacklyn.White commented on March 23rd 20 at 19:36
What is the key length in the certificate and which key wants VK? maybe they are different. They can be a query that the certificate has generica did not like. I had a case - issue a certificate on the synology (request was made on synoloy) - does not take all! (Three rubles gave recentry, damn...) - Kelly_Bode commented on March 23rd 20 at 19:39

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