Windows server 2008 r2 encryption

As of the release of Windows 7 and Windows Server R2, this is reserved by Microsoft for additional encryption types that might be implemented. Analyze your environment to determine which encryption types will be supported and then select the types that meet that evaluation.

This section describes how an attacker might exploit a feature or its configuration, how to implement the countermeasure, and the possible negative consequences of countermeasure implementation. To enable Kerberos interoperability with non-Windows versions of the Kerberos protocol, these suites can be enabled. However, doing so might open attack vectors on computers running Windows Server R2, Windows 7 and Windows Do not configure this policy.

Open the BitLocker control panel as outlined above and click on the Turn on BitLocker link beneath the drive to be encrypted. The resulting dialog will warn you that BitLocker Encryption decreases performance and provide the option to cancel the operation. To proceed, select Yes. The next screen to appear is the Set BitLocker startup preferences screen. The options provided on this screen will be governed by whether the host system has a TPM or not. The following figure shows the screen on a system without a TPM, and as such only provides the option to use BitLocker with a USB flash drive containing a startup key:.

Select the desired option to move to the next step. Next, the setup process will request that you save a recovery key. This will be required to unlock the system if BitLocker detects a problem with the integrity of the system typically if the data on the disk has been tampered with while the system was shutdown :.

Do not save the recovery key on the same USB device as the startup key, but instead insert a different device. It is recommended that multiple copies of the key be kept so it is also advised that the key be printed out and kept safely on file.

Once the recovery password has been saved click Next to proceed. On the final screen, make sure the Run BitLocker system check toggle is set and click Continue to begin the encryption process.

The system will restart and begin the encryption process, indicated by a dialog with a progress bar. Once the encryption process is complete the startup key or PIN depending on the configuration settings will be required next time the system is started. The resulting screen will provide options to Duplicate the recovery password and Duplicate the startup key. The recovery key may be written to a USB drive or to a folder. The startup key must be saved to a USB memory device. BitLocker Drive Encryption may be disabled on either a temporary or permanent basis.

To turn off BitLocker and decrypt a system volume repeat the above steps, selecting Decrypt the volume when asked to specify the level of decryption.

It is dependent on the MD5 hash function for half of the master key. SSL 2. It is disabled by default on Windows client computers designated in the Applies To list at the beginning of this topic. The protocol allows client and server applications to communicate in a way that is designed to prevent eavesdropping, tampering, or message forgery.

The Private Communications Technology protocol is a technology developed by Microsoft, which was replaced by more robust protocols SSL 3. A cipher suite is a set of cryptographic algorithms.

Schannel protocols use algorithms from a cipher suite to create keys and encrypt information. A cipher suite specifies one algorithm for each of the following tasks:.

Key exchange algorithms protect the information that is required to create shared keys. These algorithms are asymmetric public key algorithms , and they perform well for relatively small amounts of data. Bulk encryption algorithms encrypt messages that are exchanged between client computers and servers. SMB Encryption provides end-to-end encryption of SMB data and protects data from eavesdropping occurrences on untrusted networks.

You can deploy SMB Encryption with minimal effort, but it may require small additional costs for specialized hardware or software.

SMB Encryption can be configured on a per share basis or for the entire file server, and it can be enabled for a variety of scenarios where data traverses untrusted networks. SMB Encryption should be considered for any scenario in which sensitive data needs to be protected from man-in-the-middle attacks. Possible scenarios include:.

Windows will automatically negotiate this more advanced cipher method when connecting to another computer that supports it, and can also be mandated through Group Policy.

Now data is encrypted before placement, leading to relatively minor performance degradation while adding AES and AES protected packet privacy. This means that when using Storage Spaces Direct and SMB Direct, you can decide to encrypt east-west communications within the cluster itself for higher security. You should note that there is a notable performance operating cost with any end-to-end encryption protection when compared to non-encrypted. You can enable SMB Encryption for the entire file server or only for specific file shares.

Use one of the following procedures to enable SMB Encryption:.