Soluții

Criptare conversații Whatsapp și Messenger

Starea criptării conversațiilor in aplicatii.

La ora actuala toate serviciile de chat gen: Whatsapp, Messenger, Hangouts, ne pun la dispoziție metode de criptare prin care conversațiile noastre sunt ferite de ochii terților.

Ce inseamna criptarea asta?

Criptarea și decriptarea sunt tehnici prin care un text sau niște date sunt ascunse sub caractere de neînțeles folosindu-se niște chei de criptare care folosesc diferite metoda de “aiurire” a textului sau a datelor.

Exemplu stupid de criptare:

Sa zicem ca vrem sa criptam și sa trimitem textul “SALUT”. Folosindu-ne de niște chei, facem ca cuvântul “SALUT” sa se înlocuiască cu “Hi7=FwU-23” care este o înșiruire de caractere fără sens.

Aceasta înșiruire de caractere fără sens poate fi decriptata folosind o cheie, iar cel care primește mesajul va vedea “SALUT” în loc de
“Hi7=FwU-23” .

Care-i problema cu criptarea aplicatiilor ca Whatsapp, Messenger, etc.

Criptarea de baza a aplicațiilor Whatsapp, Messenger, Hangouts va ferește doar de ochii unui eventual hacker. In timpul asta cei de la Facebook va pot vedea conversațiile, chiar dacă ei spun ca nu-i interesează asa ceva. Tehnic ei au toate cheile, cu care pot decripta orice conversație, iar conversațiile sunt stocate pe serverele lor.

In plus, conversațiile voastre le pot vedea toți cei care au acces la telefonul vostru, direct sau remote.

Cum adaugam un strat suplimentar de criptare ?

Cel mai bun lucru este acela pe care-l faci tu cu mana ta, zice o vorba populara. Asa ca, ne vom face propria noastra criptare în aplicații.

Bine, acum nu trebuie sa va criptați toate mesajele, dar măcar pe cele mai importante sa le puneți la adăpost.

Aplicatii pentru criptare conversatii pe Whatsapp, Messenger, Hangouts.

CODEC – este o aplicați care ne ajuta sa facem un fel de criptare mai ușoara, ca un fel de conversie a textului. Este o aplicație ușor de folosit și nu necesita parola.

Encrypt Messages and Text  – aceasta este o aplicație ceva mai serioasa care va permite sa parolați textul.

Bonus – aplicația “codec” are și un mod de decorare a mesajelor.

[mai mult...]

How to Delete All Partitions on USB Drive External HDD Windows XP 7 8 10

Delete All Partitions on USB Drive External HDD Windows XP 7 8 10

If you need to delete all partitions on a USB drive or external HDD, the method is a little different from that of deleting partitions on an internal hard disk.

You can connect a USB drive or external hard drive to Windows computer to save or transfer data. A USB flash drive or portable HDD works similarly to internal hard drive. You can partition a USB drive or removable hard drive into several partitions and even install Windows operating system on it. If you want to delete all partitions on a USB thumb drive or USB hard drive, please follow the steps below:

Step1. Open CMD and type diskpart

Step2. Type list disk > select disk number (e.g. select disk 2) > clean

Step3. Open Disk Management on your computer and you can see the USB or external hard drive shows as unallocated space. Right click the unallocated space and select New Simple Volume

Step4. Follow the New Simple Volume Wizard and format the drive, after which you will see that the USB or external hard drive shows as a removable disk.

[mai mult...]

How to Delete All Partitions on Internal Disk of Windows 10 8 7 XP

Delete All Partitions on Internal Disk of Windows 10 8 7 XP

You may want to delete all partitions on an internal hard drive or an external USB drive on Windows. If you need to delete all partitions on an internal hard drive, you can use any of following methods:

Method1: Disk Management to Delete All Partitions in Windows for Free

No matter how many partitions it has on a hard disk, you can open Disk Management to delete all partitions on Windows computer. Before performing deleting in Windows Disk Management, please pay attention to following points:

1. You cannot delete a system partition on any Windows computer.
2. All data on the deleted partition would be erased permanently.

Now, follow the steps below to delete all partitions except system partition on Windows PC:

Step1. Open Disk Management on Windows computer. Right click any partition except system partition and select Delete Partition option. On Windows 7, 8, 10, you may select Delete Volume option.

Step2. Confirm to delete the selected partition, after which the selected partition would show as free space under Disk     Management.

Step3. Repeat Step1 and Step2 to delete other partitions on the hard disk.

Well, Disk Management is only able to delete each partition one by one. You cannot delete all partitions on a disk at the same time.

Method2: Free Delete All Partitions Using Diskpart

Diskpart is a little more complex than Disk Management to delete all partitions on a computer because it does not have a user-friendly interface. However, if you have a little knowledge about computer, you will also find it easy to handle. Please follow the guide below:

Step1. Open Command Line on Windows computer and then type diskpart
Step2. Type list disk
Step3. Type select disk number
e.g. Type select disk 0, select disk 1…It depends on which disk you want to delete.
Step4. Type list partition
Step5. Type select partition number (e.g. select partition 1, select partition 2)
Step6. Type delete partition

Method3: Delete All Partitions with Freeware for Windows XP 7 8 10

Whether you use Disk Management or Diskpart in Command Prompt, you need to delete every partition one by one. If there are several partitions on a disk, sometimes it may waste of time. If you want to delete all partitions on a disk at the same time with easier solution, you can use IM-Magic Partition Resizer. It is a free partition tool which is compatible with Windows XP, Vista, 7, 8, and 10 to delete all partitions within two simple steps:

Step1. Right click the disk (.e.g. disk 1) instead of partition and select “Delete All Partitions”.

Step2. Confirm to delete the selected disk and then click “Apply Changes” button.

[mai mult...]