How to turn a X509 Certificate in to a Certificate Signing Request
Steps for taking an existing X509 Certificate and turning it in to a
Note: It should be noted that this is not a UW-Madison Help Desk or DoIT Middleware supported procedure, and, naturally, we can't take responsibility for any damage you do while following or attempting to follow these procedures. Be sure you understand what you are doing.
With an existing X509 Certificate and it's corresponding private key, OpenSSL makes it simple to recreate the CSR that was used to generate the Certificate:
$ openssl x509 -x509toreq -in my.crt -out my.csr -signkey my.key
my.crt is your existing certificate and
my.key is your existing key. The CSR (in PKCS#10 format) will be placed in