typedef bool_t sigscheme_loadpriv(const struct sigscheme_info *algo,
struct buffer_if *privkeydata,
struct sigprivkey_if **sigpriv_r,
+ closure_t **closure_r,
struct log_if *log, struct cloc loc);
/* Ideally, check whether privkeydata contains data for any algorithm.
* That avoids security problems if a key file is misidentified (which