Creating X.509 Certificates using makecert.exe
Creating x.509 certificates is a very common task. Unfortunately the knowledge how to do it is quite rare. If you want a certificate that the whole world would trust you need to buy one, but if you need it for your own use you can create it using a tool called MakeCert.exe
After downloading the tool you have to perform the following procedure:
Creating a Root Certificate Authority
makecert.exe -n "CN=My Root CA,O=Organization,OU=Org Unit,L=San Diego,S=CA,C=US" -pe -ss my -sr LocalMachine -sky exchange -m 96 -a sha1 -len 2048 -r My_Root_CA.cer
Import Root Certificate Authority Certificate into Trusted Root Store
certutil.exe -f -addstore Root My_Root_CA.cer
Create Backup (Export) PFX file of Root Certificate Authority Certificate
certutil.exe -privatekey -exportpfx "My Root CA" My_Root_CA.pfx
Create a Server Certificate issued from the previously created Certificate Authority
makecert.exe -n "CN=Server" -pe -ss my -sr LocalMachine -sky exchange -m 96 -in "My Root CA" -is my -ir LocalMachine -a sha1 -eku 1.3.6.1.5.5.7.3.1,1.3.6.1.5.5.7.3.2 Server.cer
Create Backup (Export) PFX file of Server Certificate
certutil.exe -privatekey -exportpfx "Server" Server.pfx
Create a Computer certificate issued from the previously created Certificate Authority
makecert.exe -n "CN=Computer" -pe -ss my -sr Localmachine -sky exchange -m 96 -in "My Root CA" -is my -ir LocalMachine -a sha1 -eku 1.3.6.1.5.5.7.3.2 Computer.cer
Create Backup (Export) PFX file of Computer Certificate
certutil.exe -privatekey -exportpfx "Computer" Computer.pfx
OID Reference
Encrypting File System (1.3.6.1.4.1.311.10.3.4)
Secure Email (1.3.6.1.5.5.7.3.4)
Smart Card Logon (1.3.6.1.4.1.311.20.2.2)
Client Authentication (1.3.6.1.5.5.7.3.2)
Server Authentication (1.3.6.1.5.5.7.3.1)
IP security IKE intermediate (1.3.6.1.5.5.8.2.2)
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