Professional Windows Server 1002003 Security A Technical Reference [Electronic resources] نسخه متنی

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Professional Windows Server 1002003 Security A Technical Reference [Electronic resources] - نسخه متنی

Roberta Bragg

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Implementation Differences Between Windows Versions


Many of the differences between Windows Server 2003 and Windows 2000 were first implemented in Windows XP Professional, which added the following:

Ability to work with offline files

Ability to back up keys directly from the command line and from the File Details property page

Stronger encryption algorithms

Multiple user access to encrypted files

Ability to use WebDAV to store encrypted files on the server


Also new but dependent on the implementation of Windows Server 2003 Certification Authority is the ability to centrally archive the user's private encryption key. This capability provides efficient recovery management, something that has been missing and is desperately needed. The new process, known as key archival, means that instead of recovering the file, the encryption key is recovered. Not only is this a sounder practice than relying on a file recovery agent, but also the key recovery agent, unlike the file recovery agent, does not automatically have the ability to read the file. The key recovery agent is able to retrieve the private key and return it instead of a decrypted file to the owner.Chapter 12.

Table 6-1. EFS Differences

Feature

Windows 2000

Windows XP

Windows Server 2003

Can share encrypted files

No

Yes

Yes

Recovery Agent necessary for encryption

Yes

No

No

Local administrator on standalone is recovery agent

Yes

No

No

Default file encryption algorithm

DESX

DESX, after service pack 1 AES

AES

File Encryption algorithm choices

DESX

DESX, 3DES, AES

DESX, 3DES, AES

Public key encryption algorithms

RSA

RSA

RSA

Data Recovery

File recovery

File recovery, Key recovery if Certificate Authority for domain configured

File Recovery, key recovery if Certificate Authority for domain configured

How to determine encryptor and recovery agent for file

Esfinfoa resource kit utility

See file Advanced properties

See file Advanced properties


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