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Passwords that do not encrypt but restrict modification and can be circumvented. [2] In Word and PowerPoint the password restricts modification of the entire document. [3] In Excel passwords restrict modification of the workbook, a worksheet within it, or individual elements in the worksheet.
Each sub-document within a package has a different document root and stores a particular aspect of the XML document. All types of documents (e.g. text and spreadsheet documents) use the same set of document and sub-document definitions. As a single XML document – also known as Flat XML or Uncompressed XML Files.
The Trusted Data Format (TDF) is a data object encoding specification for the purposes of enabling data tagging and cryptographic security features. [1] These features include assertion of data properties or tags, cryptographic binding and data encryption.
A PDF file may be encrypted, for security, in which case a password is needed to view or edit the contents. PDF 2.0 defines 256-bit AES encryption as the standard for PDF 2.0 files. The PDF Reference also defines ways that third parties can define their own encryption systems for PDF.
However, a separate plugin provides Twofish as an encryption algorithm in KeePass 2.x. In KeePass 1.x (KDB database format), the integrity of the data is checked using a SHA-256 hash of the plaintext, whereas in KeePass 2.x (KDBX database format), the authenticity of the data is ensured using a HMAC-SHA-256 hash of the ciphertext (Encrypt-then ...
Change your password • If your account has recently been compromised or you suspect it has been hacked, we suggest you change your password. • It's always a good idea to update your password regularly and to make sure it's unique from other passwords you use. Read our password help article to learn how to change your password.
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