% openssl rsa -in privatekey.pem -pubout >key1.pem
The public key in a certificate can be extracted with this:
% openssl x509 -in certificate.pem -pubout -noout >key2.pem
With the two public keys, you should be able to compare the two to find a match. The following will display all the fields of the public keys.
% openssl rsa -in keyX.pem -pubin -text -noout
There may be a way to automate this, but I don't see anything in the man pages (yet).
On Nov 20, 2003, at 3:35 AM, Jia L Wu wrote:
Hi,
Given a x509 certificate or several certificates (e.g. produced from
openssl pkcs7 -out_prints), which openssl command or function can I use to
find the certificate that matches the private key or check if they are
match? Thank you.
Wu
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smime.p7s
Description: S/MIME cryptographic signature
