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(NSString *)_bCryptPassword:(NSString* )password withSaltData:(NSData *)saltData {
   char keybuf[61];
   char settingbuf[30];
   const char *genkey, *setting;
   const char *cPassword = [password cStringUsingEncoding:NSUTF8StringEncoding];
   setting = _crypt_gensalt_blowfish_rn(“$2b$“, 14, [saltData bytes], 20, settingbuf, sizeof(settingbuf));
   if (!setting)
       return @“”;
   genkey = _crypt_blowfish_rn(cPassword, setting, keybuf, sizeof(keybuf));
   if (!genkey)
       return @“”;

   return [NSString stringWithCString:keybuf encoding:NSUTF8StringEncoding];
}