public static PRE_PK GenPK(String pk1, String pk2)
{
PRE_PK pk = new PRE_PK();
pk.PK1 = pk1;
pk.PK2 = pk2;
return(pk);
}
public static PRE_Cipher KeyEncrypt(PRE_KEY key1, PRE_PK key2_pk, String m)
{
IntPtr pKey1 = ProxyReEncryption.KeyStr2KeyPtr(key1);
IntPtr pPk2 = ProxyReEncryption.PKStr2PKPtr(key2_pk);
IntPtr C = KeyEncrypt(pKey1, pPk2, m);
PRE_Cipher CC = CipherPtr2CipherStr(C);
return(CC);
}
private static PRE_KEY KeyPtr2KeyStr(IntPtr keyPtr)
{
PRE_ptrKEY ptrKey = (PRE_ptrKEY)Marshal.PtrToStructure(keyPtr, typeof(PRE_ptrKEY));
PRE_PK pkey = (PRE_PK)Marshal.PtrToStructure(ptrKey.pk, typeof(PRE_PK));
PRE_SK skey = (PRE_SK)Marshal.PtrToStructure(ptrKey.sk, typeof(PRE_SK));
return(new PRE_KEY {
PK = pkey, SK = skey
});
}
private static IntPtr PKStr2PKPtr(PRE_PK pk)
{
PRE_ptrPK ptrPK = new PRE_ptrPK
{
pk1 = Marshal.StringToHGlobalAnsi(pk.PK1),
pk2 = Marshal.StringToHGlobalAnsi(pk.PK2)
};
IntPtr pPk = Marshal.AllocHGlobal(Marshal.SizeOf(ptrPK));
Marshal.StructureToPtr(ptrPK, pPk, true);
return(pPk);
}
private void ShareWorker_DoWork(object sender, DoWorkEventArgs e)
{
while (this.ShareTaskWaitingList.Count != 0)
{
for (int i = this.ShareTaskWaitingList.Count - 1; i >= 0; i--)
{
ShareTaskUnit worker = this.ShareTaskWaitingList[i];
PublicKey pubkey = worker.PK;
//Key1
PRE_KEY key = ProxyReEncryption.GenKey(
PreKeyring.UserKey.PK1,
PreKeyring.UserKey.PK2,
PreKeyring.UserKey.SK1,
PreKeyring.UserKey.SK2);
//Key_pk2
PRE_PK key2_pk = ProxyReEncryption.GenPK(pubkey.PK1, pubkey.PK2);
//ReKey
PRE_Cipher reKey = ProxyReEncryption.KeyEncrypt(key, key2_pk, worker.Key);
String cpyRef = this.DropboxController.GetCopyRef(
this.DropboxController.SecuruStikFolder2RemoteDropboxPath(worker.FilePath));
if (String.IsNullOrEmpty(cpyRef))
{
continue;//获取copyref失败处理
}
else
{
worker.CpyRef = cpyRef;
}
SecuruStik.Protocal.SharingInfo si = new SecuruStik.Protocal.SharingInfo(
this.Email,
pubkey.ID,
Path.GetFileName(worker.FilePath),
worker.CpyRef,
reKey.E, reKey.F, reKey.U, reKey.W);
Request r = new Request(MessageType.Request_SetSharingInfo, this.DropboxController.Email, si);
this.ProxyServerController.Send(r);
this.ShareTaskWaitingList.Remove(worker);
SecuruStikMessageQueue.SendMessage_Share_End(Path.GetFileName(worker.FilePath), worker.ID_TO);
}
}
}