tlsv1_set_private_key() function
tlsv1_set_private_key - Set private key @cred: TLSv1 credentials from tlsv1_cred_alloc() @private_key: File or reference name for the key in PEM or DER format @private_key_passwd: Passphrase for decrypted private key, %NULL if no passphrase is used. @private_key_blob: private_key as inlined data or %NULL if not used @private_key_blob_len: private_key_blob length Returns: 0 on success, -1 on failure