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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]
All passwords except password to open a document can be removed instantly regardless of the Microsoft Excel version used to create the document. These types of passwords are used primarily for shared work on a document. Such password-protected documents are not encrypted, and data sources from a set password are saved in a document's header.
The Encrypting File System (EFS) on Microsoft Windows is a feature introduced in version 3.0 of NTFS [1] that provides filesystem-level encryption.The technology enables files to be transparently encrypted to protect confidential data from attackers with physical access to the computer.
Access to the database is restricted by a master password or a key file. Both methods may be combined to create a "composite master key". If both methods are used, then both must be present to access the password database. KeePass version 2.x introduces a third option—dependency upon the current Windows user. [26]
Microsoft Office 4.2 for Windows NT was released in 1994 for i386, Alpha, [141] MIPS and PowerPC [142] architectures, containing Word 6.0 and Excel 5.0 (both 32-bit), [143] PowerPoint 4.0 (16-bit), and Microsoft Office Manager 4.2 (the precursor to the Office Shortcut Bar)).
At AOL, we make every effort to keep your personal information totally secure. SSL (Secure Sockets Layer) is an industry standard for encrypting private data sent over the Internet. It helps protect your account from hackers and insures the security of private data sent over the Internet, like credit cards and passwords.
You can remove the Anti-Keylogging window but we'll continue to disguise your keystrokes for your safety. 1. Click the Settings icon in your toolbar. 2. On the Settings window, click the Premium Security tab. 3. Unselect the Show Anti-Keylogging Window box.
A main encryption/decryption key is derived from user's password by PBKDF2 function. [2] Particular data binary large objects can be encrypted in a way that salt is added and/or an external user-prompted password (aka "Strong Key Protection") is required. The use of a salt is a per-implementation option – i.e. under the control of the ...