e can issue a certificate which will match the requirements of SQL SERVER 2012

The certificate must be in the local computer certificate store or the current user.

Current system time must be greater than the properties of the certificate Valid from and less than the property value
Certificate Valid to.
The certificate must be meant for server authentication. This property Enhanced Key Usage certificate must be set to Server Authentication (1.3.6.1.5.5.7.3.1).
The certificate must be created with the value of the parameter KeySpec AT_KEYEXCHANGE. Usually the property of the certificate key (KEY_USAGE) also include key encipherment (CERT_KEY_ENCIPHERMENT_KEY_USAGE).
Subject property certificate must indicate that the common name (CN) matches the host name or fully qualified domain name (FQDN) server. If SQL Server is running in a failover cluster, the common name must match the host name or fully qualified domain name of the virtual server and the certificates must be provided to all failover cluster nodes.
SQL Server 2008 R2 Native Client and SQL Server 2008 R2 support the certificates based on templates. Other clients may not support certificates based on templates. For more information, please refer to the customer and the Knowledge Base article KB258858.