//useage
//var spicker = new FileSavePicker();
//spicker.FileTypeChoices.Add("XML", new List<String>() { ".xml" });
//var sfs = await spicker.PickSaveFileAsync();
//await DataPacManager.SerializeAsync(sfs, "test");
public static async Task SerializeAsync(StorageFile sf, string serkey)
{
if (Core.Current.CurrentUser == null)
{
throw new Exception();
}
DataPac dat = new DataPac();
await Task.Run(async() =>
{
//create ser aesobj
string pid = Core.Current.CurrentUser.PID;
dat.pid = pid;
string str1 = pid + serkey;
string str2 = serkey + pid;
var hashobj = new Helper.HashProvider();
string hstr1 = hashobj.Hash(str1);
string hstr2 = hashobj.Hash(str2);
string serpwd_hash = hstr1 + hstr2;
Helper.AESProvider _AESobj;
var ivhash = new Helper.HashProvider(HashAlgorithmNames.Md5);
byte[] _iv = ivhash.Hashbytes(pid);
//create token
string ranstr = (new Helper.RandomGenerator()).getRandomString(20);
dat.token = ranstr;
string kstr1 = ranstr + serpwd_hash;
string kstr2 = serpwd_hash + ranstr;
var keyhash = new Helper.HashProvider();
byte[] _key = new byte[128];
byte[] btar = keyhash.Hashbytes(kstr1);
Array.Copy(btar, 0, _key, 0, 64);
btar = keyhash.Hashbytes(kstr2);
Array.Copy(btar, 0, _key, 64, 64);
_AESobj = new Helper.AESProvider(_iv, _key);
//encrypt dats
dat.pwd_hash = _AESobj.Encrypt(Core.Current.CurrentUser.PWD_hash);
dat.sertoken = _AESobj.Encrypt(ranstr);
dat.vertifystr = _AESobj.Encrypt(AssetsController.getLocalSequenceString(Core.Current.CurrentUser.UID));
List <DataPac.dRow> arr = new List <DataPac.dRow>();
using (APPDbContext db = new APPDbContext())
{
foreach (var t in db.Recordings.ToList())
{
if (t.uid == Core.Current.CurrentUser.UID)
{
DataPac.dRow obj = new DataPac.dRow()
{
key = _AESobj.Encrypt(t.key),
value = _AESobj.Encrypt(t.value)
};
arr.Add(obj);
}
}
}
dat.dRows = arr.ToArray();
await dat.SerializeAsync(sf);
});
}
public static LoginUser CreateObj(string pid, string pwd)
{
var user = new LoginUser();
user.PID = pid;
//加盐方式 str1=pid+pwd str2=pwd+pid
string str1 = pid + pwd;
string str2 = pwd + pid;
var hashobj = new Helper.HashProvider();
string hstr1 = hashobj.Hash(str1);
string hstr2 = hashobj.Hash(str2);
user.PWD_hash = hstr1 + hstr2;
return(user);
}
private static string _AppHashToken(ServiceInstance server)
{
var hashobj = new Helper.HashProvider();
var ranstrobj = new Helper.RandomGenerator();
server.HashMark = hashobj.Hash(ranstrobj.getRandomString(50));
while (true)
{
bool vt = true;
foreach (var t in _ServiceInstances.Keys)
{
if (t.Info.LoginHashToken == server.HashMark)
{
vt = false;
}
}
if (vt)
{
break;
}
server.HashMark = hashobj.Hash(ranstrobj.getRandomString(50));
}
return(server.HashMark);
}
//useage
//var picker = new FileOpenPicker();
//picker.FileTypeFilter.Add(".xml");
// var sf = await picker.PickSingleFileAsync();
//await DataPacManager.DeserializeAsync(sf, "test");@throw KeyVertifyFailException
public static async Task DeserializeAsync(StorageFile sf, string serkey)
{
var dat = await DataPac.DeserializeAsync(sf);
string pid = dat.pid;
string token = dat.token;
string desertoken = "";
Helper.AESProvider _AESobj = null;
await Task.Run(() =>
{
//create ser aesobj
string str1 = pid + serkey;
string str2 = serkey + pid;
var hashobj = new Helper.HashProvider();
string hstr1 = hashobj.Hash(str1);
string hstr2 = hashobj.Hash(str2);
string serpwd_hash = hstr1 + hstr2;
var ivhash = new Helper.HashProvider(HashAlgorithmNames.Md5);
byte[] _iv = ivhash.Hashbytes(pid);
string kstr1 = token + serpwd_hash;
string kstr2 = serpwd_hash + token;
var keyhash = new Helper.HashProvider();
byte[] _key = new byte[128];
byte[] btar = keyhash.Hashbytes(kstr1);
Array.Copy(btar, 0, _key, 0, 64);
btar = keyhash.Hashbytes(kstr2);
Array.Copy(btar, 0, _key, 64, 64);
_AESobj = new Helper.AESProvider(_iv, _key);
desertoken = _AESobj.Decrypt(dat.sertoken);
});
if (desertoken != token)
{
throw new KeyVertifyFailException()
{
_DataPac = dat
}
}
;
await Task.Run(() => //InvalidOperationException
{
using (APPDbContext db = new APPDbContext())
{
//search user
User user = null;
foreach (var t in db.Users.ToList())
{
if (t.pid == pid)
{
user = t;
}
}
if (user == null)
{
string pwd_hash_aes = AssetsController.EncryptwithAppaesobj(_AESobj.Decrypt(dat.pwd_hash));
User dbuser = new User()
{
pid = pid,
pwd = pwd_hash_aes
};
db.Entry(dbuser).State = Microsoft.EntityFrameworkCore.EntityState.Added;
db.SaveChanges();
user = db.Users.Single(b => b.pid == pid);;
}
//set user sa
AssetsController.getLocalSequenceString(user.ID);
var saobj = db.SA.Single(t => t.ID == user.ID);
//saobj.Data = dat.vertifystr;
saobj.Data = _AESobj.Decrypt(dat.vertifystr);
db.Entry(saobj).State = Microsoft.EntityFrameworkCore.EntityState.Modified;
foreach (var t in dat.dRows)
{
Recording obj = new Recording()
{
uid = user.ID,
key = _AESobj.Decrypt(t.key),
value = _AESobj.Decrypt(t.value)
};
db.Entry(obj).State = Microsoft.EntityFrameworkCore.EntityState.Added;
}
db.SaveChanges();
}
});
}
