Certificate Health PowerShell Module with Nagios

The Certificate Health PowerShell module allows you to evaluate the certificates installed on your local system for expiration and deprecated signature algorithms. Using the included functions you can get certificates from the local certificate stores as well as certificates on the filesystem. In addition to getting the certificate health of these certificates an included function, Get-UnhealthyCertificates is designed to integrate with the Nagios monitoring system to alert administrators of certificates that are expired, expiring, or using outdated signature algorithms (i.e. md5, sha1RSA).

UPDATED 20151210 V1.2:

Added certificate key size health check

UPDATED 20150510 v1.1:

Changed Get-UnhealthyCertificate to output PowerShell objects
Added Get-UnhealthyCertificateNagios to output Nagios output.