The following information will be used to construct what is called a Distinguished Name or a DN.

Your certificate signing request should be uniquely identifiable based on your DN.

countryName:Country Name (2 letter code)
stateOrProvinceName:State or Province Name (full name)
localityName:Locality Name (eg, city)
organizationName:Organization Name (eg, company)
organizationalUnitName:Organizational Unit Name (eg, section)
commonName:Common Name (eg, YOUR name)
emailAddress:Email Address
Key strength: