Cerificate from CA
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## Cerificate from CA

If you don’t have third-party signed certificate yet but you want to have one you could obtain it from cacert.org for free.

First, you have to generate Certificate Request:

    keytool -certreq -alias yourdomain -keystore rsa-keystore

Where yourdomain is a domain name for which this certificate is generated. If you need support for multiple virtual domains you need to have certificate for each domain separately and assign proper alias to certificate. If you have just one domain or for some reason you have to use one certificate for all domains use default as an alias.

Keytool generates the request:

    -----BEGIN NEW CERTIFICATE REQUEST-----
    MIIBrzCCARgCAQAwbzEQMA4GA1UEBhMHVW5rbm93bjEQMA4GA1UECBMHVW5rbm93bjEQMA4GA1UE
    BxMHVW5rbm93bjEQMA4GA1UEChMHVW5rbm93bjEQMA4GA1UECxMHVW5rbm93bjETMBEGA1UEAxMK
    c2VydmVyLm9yZzCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEAs73Y70725OcG0j4kpCfDX59e
    qhz2gdGOO0LyMO7rm4m+ZCenq8E88M0RJ8/LV/7q0mtOAzbI8dtXZnmJ74xihCH8ZTFpVDMyFWgk
    WCj2kz+IUD9vWt6i1UepSkr1a/jYmVMN3RSaoS+j+QLBsJ4rWeOHgIdbiF5tnMhoZMXU//0CAwEA
    AaAAMA0GCSqGSIb3DQEBBAUAA4GBAHY5r9rftqiKESbbkCcfVhvnUqN4aMTC8/zXWwzBX8guC0kd
    H46+p6eizwJg6p+h6rqShG2OqXCPrJzO3buHr1jEWRTlB8l5CM53L/xq61nYuaSf5R7Vv/RX2+aD
    JyoBqYIoSUED0+Sjhej0SUPTOdpA/bfnqdfdtckday4vsLPC
    -----END NEW CERTIFICATE REQUEST-----

Now send the request to your CA. CA issues a signed certificate and send it to you. It may may look like:

    -----BEGIN CERTIFICATE-----
    MIICUDCCAbkCBEUqAK0wDQYJKoZIhvcNAQEEBQAwbzEQMA4GA1UEBhMHVW5rbm93bjEQMA4GA1UE
    CBMHVW5rbm93bjEQMA4GA1UEBxMHVW5rbm93bjEQMA4GA1UEChMHVW5rbm93bjEQMA4GA1UECxMH
    VW5rbm93bjETMBEGA1UEAxMKc2VydmVyLm9yZzAeFw0wNjEwMDkwNzU2MjlaFw0wNzAxMDcwNzU2
    MjlaMG8xEDAOBgNVBAYTB1Vua25vd24xEDAOBgNVBAgTB1Vua25vd24xEDAOBgNVBAcTB1Vua25v
    d24xEDAOBgNVBAoTB1Vua25vd24xEDAOBgNVBAsTB1Vua25vd24xEzARBgNVBAMTCnNlcnZlci5v
    cmcwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBALO92O9O9uTnBtI+JKQnw1+fXqoc9oHRjjtC
    8jDu65uJvmQnp6vBPPDNESfPy1f+6tJrTgM2yPHbV2Z5ie+MYoQh/GUxaVQzMhVoJFgo9pM/iFA/
    b1reotVHqUpK9Wv42JlTDd0UmqEvo/kCwbCeK1njh4CHW4hebZzIaGTF1P/9AgMBAAEwDQYJKoZI
    hvcNAQEEBQADgYEAQqRPdkbc/pdDcPIWOThn2XPp0gitPkXq89ZM1mb0Pib1OISj9ekjqhEZz0UA
    cI6g1XttpY6hKi6Gg+mRbwiHNVebkDLamE2UIcVJ1wBtowYeOcV1CcLnlj91ScMKNhfD5ebQL+be
    tWWrJX3ep+80kF/NdVkc7htGOhLebopp8SQ=
    -----END CERTIFICATE-----

You should save the Certificate to disk file.

If you already have third-party sgined certificate you have to import it with keytool program to server certificate storage.

Note! You must have a root CA certificate!!! You can download the cert from CA (ie.: root.crt) and import:

    keytool -import -keystore rsa-keystore -file root.crt \
        -alias root

Last step is import Certificate to your keystore:

    keytool -import -alias yourdomain -keystore rsa-keystore \
        -file your-certificate.cer

Where yourdomain is a domain name for which this certificate has been generated. If you need support for multiple virtual domains you have to import certificate for each domain separately and assign proper alias to certificate. If you have just one domain or for some reason you have to use one certificate for all domains use default as an alias.

It’s also good to import root CA certificate to this keystore. You must find it on CA website.

    keytool -import -keystore rsa-keystore -file rootCA.cer

It may also happen that you have generated certreq using openssl for use in other services like WWW. In such case you may have your private key and certificate in separate files. Let’s say private key is in ssl.key file and certificate is in ssl.crt file. To put them together use following command:

    openssl pkcs12 -export -inkey ssl.key -in ssl.crt \
        -out mycert.pfx -name "default"

And now you can load certificate with private key to your keystore:

    keytool -importkeystore -srckeystore mycert.pfx \
        -srcstoretype pkcs12 -destkeystore rsa-keystore \
        -srcalias default -destalias yourdomain \
        -destkeypass your_keystore_pass

Note! Please note -destkeypass parametr. Your keys password must be the same as keystore password. Otherwise it won’t work.

Now you have to copy file rsa-keystore to directory certs/ in your tigase server installation. The file could also be installed in different location but then corrections to config file are required. Refer to configuration documentation for details.

The final note - don’t forget to modify tigase server configuration file and set proper password for your keystore.

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