It's possible you missed it because you've been busy, but in 2007 the National Institute of Standards and Technology published their "Recommendation for Key Management" in which they state that, by 2010, all RSA keys should use 2048-bit keys. It's 2012, so, if you haven't updated your certificates recently--and Microsoft has already told you to at least update to 1024-bit keys--the following procedure creates a new Microsoft certificate with a 2048-bit key for your SolarWinds Orion installation.
Note: You can use this same procedure to update the certificates for any and all of your other applications too.
To create a 2048-bit key for your SolarWinds Orion installation:
Delete the old SolarWinds-Orion certificate.
Click Start > Run.
Type mmc, and then click OK.
Click File > Add/Remove Snap-in.
Click Certificates, and then click Add.
Note: Depending on your server version, you may need to click Add to see Certificates in the list of available standalone snap-ins.
Select Computer account, and then click Next.
Select Local computer, and then click Finish.
If the Add Standalone Snap-in window is still open, click Close to close it.
If the Add/remove Snap-in window is still open, click OK to close it.
Click + to expand Certificates > Personal, and then click Certificates.
Right-click SolarWinds-Orion, and then click Delete.
Click Yes to confirm deletion of the SolarWinds-Orion certifcate.
Create a new certificate with a 2048-bit key.
Click Start > All Programs > Accessories, and then right-click Command Prompt.
Either click Run as, select a user with administrative privileges, and then click OK, or click Run as Administrator.
If your server is 32-bit, enter Run "C:\Program Files\SolarWinds\Orion\makecert.exe" -r -pe -n "CN=SolarWinds-Orion" -len 2048 -sr LocalMachine -ss My -skyexchange -eku 1.3.6.1.5.5.7.3.1
Note: This command is intended for a default installation. You may need to alter the path to makecert.exe if you installed SolarWinds Orion into a non-default directory.
If your server is 64-bit, enter Run "C:\Program Files (x86)\SolarWinds\Orion\makecert.exe" -r -pe -n "CN=SolarWinds-Orion" -len 2048 -sr LocalMachine -ss My -skyexchange -eku 1.3.6.1.5.5.7.3.1
Note: This command is intended for a default installation. You may need to alter the path to makecert.exe if you installed SolarWinds Orion into a non-default directory.
Using your sa credentials, connect to your SQL Server using SQL Server Management Studio (Start > All Programs > Microsoft SQL Server > SQL Server Management Studio).
Click + to expand Databases, and then right-click your SolarWinds database.
Click New Query.
Enter the following query in the query field:
UPDATE ServerCertificates SET Replaced=GETUTCDATE() WHERE Replaced IS NULL
Click Execute.
Click Start > All Programs > SolarWinds Orion > Configuration and Auto-Discovery > Configuration Wizard.
Complete the Configuration Wizard using your existing configuration details.