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Generating TLS certificates (win32)

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This is how to Generate TLS certificates in win32. A temporary solution for Windows users until an automatic script is available.

Click here to expand Table of Contents

1 Creating new CA and certificate
2 Removing the CA
3 Customization

Creating new CA and certificate

OpenSSL is built with FreeSWITCH - no additional files needed for setup.
Create a CA directory under freeswitch/conf/ssl called CA:

mkdir “c:\program files\freeswitch\conf\ssl\CA"

Create two temporary files in this new directory:

# c:\program files\freeswitch\conf\ssl\CA\tmpfile1.cfg
[ req ]
default_bits            = 1024
prompt                  = no
distinguished_name      = req_dn

[ req_dn ]
commonName              = FreesSWITCH CA
organizationName        = FreeSWITCH

[ ext ]
basicConstraints=CA:TRUE
subjectKeyIdentifier=hash
authorityKeyIdentifier=keyid,issuer:always

# c:\program files\freeswitch\conf\ssl\CA\tmpfile2.cfg
[ req ]
default_bits            = 1024
prompt                  = no
distinguished_name      = req_dn

[ req_dn ]
commonName              = FreesSWITCH CA
organizationName        = FreeSWITCH

[ ext ]
basicConstraints=CA:FALSE
subjectKeyIdentifier=hash
authorityKeyIdentifier=keyid,issuer:always
subjectAltName=DNS:test.freeswitch.org 

To set up new CA certificate, run these commands under this new directory (chdir "c:\program files\freeswitch\conf\ssl\CA"):

..\..\..\openssl req -new -out "careq.pem" -newkey rsa:1024 -keyout "cakey.pem" -config "tmpfile1.cfg" -nodes -sha1
..\..\..\openssl x509 -req -signkey "cakey.pem" -in "careq.pem" -out "cacert.pem" -extfile "tmpfile1.cfg" -extensions ext -days 365 -sha1

To generate a certificate, run this under the same directory:

..\..\..\openssl req -new -out "tmpfile2.req" -newkey rsa:1024 -keyout "tmpfile3.key" -config "tmpfile2.cfg" -nodes -sha1
..\..\..\openssl x509 -req -CAkey "cakey.pem" -CA "cacert.pem" -CAcreateserial -in "tmpfile2.req" -out "tmpfile3.crt" -extfile "tmpfile2.cfg" -extensions ext -days 365 -sha1

Move the final certificates in their final position:

copy cacert.pem ..\cafile.pem
copy tmpfile3.* ..\agent.pem

Erase all the temporary files:

del tmpfile*.*

Removing the CA

To remove the CA, just delete the CA directory:

rmdir /s /q "c:\program files\freeswitch\conf\ssl\CA"

Customization

You might consider changing these according to your settings:

commonName          =FreesSWITCH CA customize your own CA name
organizationName    =FreeSWITCH Put your own organization name
subjectAltName      =DNS:test.freeswitch.org    Your own DNS
copy tmpfile3.* ..\agent.pem    depending on the certificate name you need

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