Monday, 11 July 2011

Wildcard SSL Certificates: What Is It?

What Is It?

A Wildcard SSL Certificate helps enable SSL encryption on multiple sub-domains using a single certificate as long as the domains are controlled by the same organization and share the same second-level domain name. For example, a Wildcard certificate issued to Company ABC using the Common Name (“*”) may be used to secure the following domains:
How VeriSign Can Help?

Ask your VeriSign sales contact about Wildcard SSL Certificates. A common, high-level standard of security across all types of configurations is better achieved when you do not share or copy certificates among servers. Limitations of using Wildcard SSL Certificates include:
  • Security: If one server or sub-domain is compromised, all sub-domains may be compromised.
  • Management: If the wildcard certificate needs to be revoked, all sub-domains will need a new certificate.
  • Compatibility: Wildcard certificates may not work seamlessly with older server-client configurations.
  • Protection: VeriSign Wildcard SSL Certificates are not protected by NetSure extended warranty.

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