Windows 8

1. Windows 8 2. Module 1 - Installing and Deploying Windows 8. 3. Windows 8 editions. 4. Advantage of 64 bit Processor. 5. Minimum hardware requirement for Windows 8 6. Option for installing Windows 8 7. Installation of Windows 8 8. Upgrading and Migrating to Windows 8 9. What is Upgrading 10. What is Migration 11. Migrating User Data and Settings 12. Migrating using USMT ( User State Migration Tool ) 13. MBR - Master Boot Record 14. GUID - GPT Disk. 15. Disk Management tools. 16. Simple Volume 17. Spanned and Striped Volumes 18. Maintaining Disks, Partitions, and Volumes 19. Disk Quota 20. Device Driver in Windows 8 21. System Restore 22. LAST KNOWN GOOD CONFIGURATION 23. Configure and Trouble shoot Network Connections 24. What is an IPv4 Address 25. Default Gateway 26. Public and Private IPv4 Address 27. IPv6 Network Connectivity 28. IPv4 Address can be assigned by following types 29. Implementing Name Resolution 30. Trouble Shooting Network Connectivity 31. Implementing Wireless Security 32. Wireless network Technologies 33. What is Wireless Broadband? 34. IEEE 802.11 35. Wireless Network Configuration 36. Security Types 37. Implementing Network Security. 38. Configuring Windows Firewall 39. Ports and Application 40. Important Application, Protocol and Port Number 41. Configure Inbound and Outbound Rules 42. Securing Network traffic 43. Configuring Windows Defender 44. Managing File Access 45. NTFS Standard permission for FOLDER 46. Preventing Permission Inheritance 47. Different ways to Share Folder 48. RULE for setting NTFS + SHARE PERMISSION 49. Managing Printers 50. SkyDrive 51. Securing Windows 8 Desktop 52. User Account Types and Rights 53. Windows Authentication Methods 54. Important Security Features in Windows 8 55. Managing EFS Certificates 56. BitLocker 57. Configuring BitLocker To Go 58. UAC - User Account Control 59. Configuring Application. 60. Application Compatibility Issue 61. Resolve Common Application Compatibility Issues 62. Office 365 63. Windows Store 64. LOB (Line Of Business) and Sideloading 65. Configuring Internet Explorer Settings 66. AppLocker 67. Optimizing and Maintaining Windows 8 Client Computers 68. Performance Monitor 69. Commonly used Performance Counters 70. Resource Monitor 71. Managing Reliability of Windows 8 72. Managing Windows 8 Updates 73. Configuring Mobile Computing and Remote Access 74. Tools for Configuring Mobile Computers and Device Setting 75. Configure VPN Access 76. Data encryption 77. VPN Tunneling Protocols 78. Configure Remote Desktop and Remote Assistance 79. Remote Assistance 80. DirectAccess 81. Hyper-V 82. VHD 83. Managing Snapshot 84. Troubleshooting and Recovery Options for Windows 8 85. Enable and configure Windows 7 File Recovery 86. Advance Troubleshoot now option 87. Windows 8 System Restore 88. Using Windows PowerShell
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Data encryption tutorials

  • To ensure data confidentiality as it crosses the shared or public transit network, the sender encrypts the data, and the receiver decrypts it.

  • The encryption and decryption processes depend on both the sender and the receiver using a common encryption key.

  • Intercepted packets sent along the VPN connection in the transit network are un-accessible to anyone who does not have the common encryption key.

  • The encryption key’s length is an important security parameter.

  • Although techniques and software to determine the encryption key are available, larger encryption key require more computing power and time to decrypt. Therefore we advise you to use the largest possible key size to ensure data confidentiality.

 

How secure an AES (Advanced Encryption Standard)?

  • To encrypt data any cryptographic algorithm requires multi-bit key.

  • The key length used in encryption determines the practical feasibility of performing a brute-force attack. Longer the key more difficult it to crack.

  • Following tables shows possible number of key combinations with respect to key size.

 

Encryption key size

Possible combinations

1 bit

2

2 bit

4

8 bit

256

16 bit

65536

32 bit

4.2 x 109

56 bit (DES)

7.2 x 1016

64 bit

1.8 x 1019

128 bit (AES)

3.4 x 1038

192 bit (AES)

6.2 x 1057

256 bit (AES)

1.1 x 1077

 

  • Assuming that you deport Fastest Supercomputer (as per Wikipedia) having speed of 10.51 Pentaflops that is 10.51 x 1015 Floating Point operations per second to crack above encryption using brute force attack.

 

Encryption key size

Time to Crack

56 bit

399 seconds

128 bit

1.02 x 1018 years

192 bit

1.872 x 1037 years

256 bit

3.31 x 1056 years

 

  • In simple word 128 bit AES bit key will take fastest supercomputers using brute force attack 1 billion billion years (1.02 x 1018 years), this is more than the age of universe (13.75 billion years).

 


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