The following are the Certificate Authorities registered with the Austin Active Directory
| Server | CA Name | Hash | Status | Purpose | Expires | Notes |
|---|---|---|---|---|---|---|
| ca-ext-p01 | Austin External 2015 | SHA256 | Production | External certificates | ||
| ca02 | austin.utexas.edu External Certificate Authority | SHA1 | Retired | |||
| ca03 | Austin Root Certificate Authority | SHA1 | Production | Root certificate only | ||
| ca04 | Austin Subordinate Certificate Authority | SHA1 | Production | Issuer for normal certificates | ||
| ca05 | Austin Disk Certificate Authority | SHA1 | Production | |||
| ca06 | Austin External Certificate Authority | SHA1 | Production |