CA

0x20 CA

• CA with OpenSSL
  • all flat files in 1 directory
  • can easily be transported on an encrypted filesystem
• Used for OpenVPN authentication

openssl.cnf

Check the openssl.cnf file with the 0x20 specific values:

• root ca is valid for 15 years
• certificates are valid for 5 years
• DN: C=BE, ST=Ghent, L=Whitespace, O=0x20, CN=0x20 root ca
• nsCaRevocationUrl = http://www.0x20.be/ca-0x20-crl.pem
• extendedKeyUsage=serverAuth (server certs)
• extendedKeyUsage=clientAuth (client certs)

Create a CA

• based on http://www.freebsdmadeeasy.com/tutorials/freebsd/create-a-ca-with-openssl.php

$ openssl req -new -x509 -days 5475 -newkey rsa:4096 -extensions v3_ca -keyout private/ca-0x20-key.pem -out ca-0x20-cert.pem -config ./openssl.cnf