add_certinfo_ex

Description:

[ Version ( since = "2.30" ) ]
public int add_certinfo_ex (CipherValidityMode mode, string name, string email, void* cert_data, CipherCloneFunc? cert_data_clone)

Add a cert info to the signer or encrypter info, with extended data set.

this	a CipherValidity
mode	a CipherValidityMode, where to add the additional certificate information
name	a name to add
email	an e-mail address to add
cert_data	a certificate data, or null
cert_data_clone	a copy function for `cert_data`, to copy the data; required, when `cert_data` is not null
cert_data_free	a destroy function for `cert_data`; required, when `cert_data` is not null

Index of the added certinfo; -1 on error