Get the Whitepaper called Certificate Authority Transparency and Auditability. The goal of this paper is to make it impossible (or at least very difficult) for a Certificate Authority (CA) to issue a certificate for a domain without the knowledge of the owner of that domain. A secondary goal is to protect users as much as possible from mis-issued certificates.
You can download it from the following link: https://packetstormsecurity.com/files/download/107393/CertificateAuthorityTransparencyandAuditability.pdf
Source: https://packetstormsecurity.com/files/107393/Certificate-Authority-Transparency-And-Auditability.html