toxcore/nacl/curvecp/curvecpmakekey.c
2013-07-02 09:53:34 -04:00

58 lines
1.5 KiB
C

#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "die.h"
#include "e.h"
#include "savesync.h"
#include "randombytes.h"
#include "crypto_box.h"
void die_usage(void)
{
die_1(111,"curvecpmakekey: usage: curvecpmakekey keydir\n");
}
void die_fatal(const char *trouble,const char *d,const char *fn)
{
if (fn) die_9(111,"curvecpmakekey: fatal: ",trouble," ",d,"/",fn,": ",e_str(errno),"\n");
die_7(111,"curvecpmakekey: fatal: ",trouble," ",d,": ",e_str(errno),"\n");
}
unsigned char pk[crypto_box_PUBLICKEYBYTES];
unsigned char sk[crypto_box_SECRETKEYBYTES];
unsigned char lock[1];
unsigned char noncekey[32];
unsigned char noncecounter[8];
void create(const char *d,const char *fn,const unsigned char *x,long long xlen)
{
if (savesync(fn,x,xlen) == -1) die_fatal("unable to create",d,fn);
}
int main(int argc,char **argv)
{
char *d;
if (!argv[0]) die_usage();
if (!argv[1]) die_usage();
d = argv[1];
umask(022);
if (mkdir(d,0755) == -1) die_fatal("unable to create directory",d,0);
if (chdir(d) == -1) die_fatal("unable to chdir to directory",d,0);
if (mkdir(".expertsonly",0700) == -1) die_fatal("unable to create directory",d,".expertsonly");
crypto_box_keypair(pk,sk);
create(d,"publickey",pk,sizeof pk);
randombytes(noncekey,sizeof noncekey);
umask(077);
create(d,".expertsonly/secretkey",sk,sizeof sk);
create(d,".expertsonly/lock",lock,sizeof lock);
create(d,".expertsonly/noncekey",noncekey,sizeof noncekey);
create(d,".expertsonly/noncecounter",noncecounter,sizeof noncecounter);
return 0;
}