Is there openssl API to verify certificate content is DER or PEM format ?

[openssl-users@xxxxxxxxxxxx (Viktor Dukhovni)]

On Thu, Jun 11, 2015 at 06:01:26AM +0530, Nayna Jain wrote:

> I have similar concern for private key.
> If I have a pem file with private key in that, how do I check if that is
> RSA/DSA ?

In almost all cases don't check.  Just load and use the key as a
generic EVP_PKEY.

-- 
	Viktor.