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In Excel and Word 95 and prior editions a weak protection algorithm is used that converts a password to a 16-bit verifier and a 16-byte XOR obfuscation array [1] key. [4] Hacking software is now readily available to find a 16-byte key and decrypt the password-protected document. [5] Office 97, 2000, XP and 2003 use RC4 with 40 bits. [4]
In AmigaOS, a lock on a file (or directory) can be acquired using the Lock function (in the dos.library). A lock can be shared (other processes can read the file/directory, but can't modify or delete it), or exclusive so that only the process which successfully acquires the lock can access or modify the object.
Apple Inc.'s iPhone has read-only support for Office Open XML attachments to email. [5] Apple Inc.'s TextEdit, the built-in word processing program of Mac OS X, has very basic read and write support for Office Open XML text files starting with Mac OS X v10.5. [6]
Microsoft Word is a word processing program developed by Microsoft.It was first released on October 25, 1983, [11] under the name Multi-Tool Word for Xenix systems. [12] [13] [14] Subsequent versions were later written for several other platforms including: IBM PCs running DOS (1983), Apple Macintosh running the Classic Mac OS (1985), AT&T UNIX PC (1985), Atari ST (1988), OS/2 (1989 ...
Historically, MAC was strongly associated with multilevel security (MLS) as a means of protecting classified information of the United States.The Trusted Computer System Evaluation Criteria (TCSEC), the seminal work on the subject and often known as the Orange Book, provided the original definition of MAC as "a means of restricting access to objects based on the sensitivity (as represented by ...
Until the release of Mac OS X Server 10.4, HFS Plus supported only the standard UNIX file system permissions; however, 10.4 introduced support for access control list–based file security, which provides a richer mechanism to define file permissions and is also designed to be fully compatible with the file permission models on other platforms ...
The version included in Mac OS X v10.3 added the ability to read and write documents in Word format, and the version in Mac OS X v10.4 added the ability to read and write Word XML documents. The version included in Mac OS X v10.5 added read and write support for Office Open XML and OpenDocument Text. The version included in Mac OS X v10.6 added ...
Before this, Word could only open documents that were in an equal or older format. This converter makes it possible to open and edit files created using Microsoft Word 98 or later on a Mac with only Word 6.0 installed. [6] Word Perfect 5 converter The Word Perfect 5 Converter allows for users to use Microsoft Word 2001 to open and save ...