Ensures the root of chain has a trusted certificate in trust_dir and the digests of the two certificates match according to digester
Add a certificate to trusted certificate list.
Deprecated in version 3.0. Consider using PKey::PKey#sign_raw and PKey::PKey#verify_raw instead.
Serializes the private key to PEM-encoded PKCS #8 format. See private_to_der for more details.
An unencrypted PEM-encoded key will look like:
-----BEGIN PRIVATE KEY----- [...] -----END PRIVATE KEY-----
An encrypted PEM-encoded key will look like:
-----BEGIN ENCRYPTED PRIVATE KEY----- [...] -----END ENCRYPTED PRIVATE KEY-----
Serializes the public key to PEM-encoded X.509 SubjectPublicKeyInfo format.
A PEM-encoded key will look like:
-----BEGIN PUBLIC KEY----- [...] -----END PUBLIC KEY-----