sctp_alloc_sharedkey
new_skey = sctp_alloc_sharedkey();
extern sctp_sharedkey_t *sctp_alloc_sharedkey(void);
null_key = sctp_alloc_sharedkey();
shared_key = sctp_alloc_sharedkey();
shared_key = sctp_alloc_sharedkey();
shared_key = sctp_alloc_sharedkey();