Nowadays it is a must to encrypt the communication of your web site with the users and especially in cases that users send data with personal information. The encryption takes place with a certificate that is provided from a CA and is payable.

Fortunately open source communities provides a free solution for developers to create a certificate.
You can find many information about this in the following sites.

Below we will provide specific documentation to create certificate for Delphi XE Intraweb site in windows OS

First of all down Openssl files from this link and extract them to C:

open a command prompt to c:opensslbin

run the following command:

set OPENSSL_CONF=C:OpenSSLbinopenssl.cnf

run openssl

from openssl environment run the following commands one by one 

genrsa -des3 -out ca.key 4096 (at this point you have to set  certificate password)

req -new -x509 -days 1826 -key ca.key -out ca.crt

genrsa -out ia.key 4096

req -new -key ia.key -out ia.csr

x509 -req -days 730 -in ia.csr -CA ca.crt -CAkey ca.key -set_serial 01 -out ia.crt

finally exit the open ssl environment and run the following commands
rename ia.key key.pem
rename ca.crt  root.pem
rename ia.crt  cert.pem 

The files key.pem, root.pem and cert.pem are what you need to secure your Intraweb site with a certificate.

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