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  2. PAdES - Wikipedia

    en.wikipedia.org/wiki/PAdES

    the signature verifying algorithm that uses the public key, message and digital signature to confirm the authenticity of the message. For PDF documents, the signature data is incorporated directly within the signed PDF document, much as an ink signature becomes an integral part of a paper document, allowing the complete self-contained PDF file ...

  3. Tech tip: How to digitally sign a document on a PC, Mac ... - AOL

    www.aol.com/news/tech-tip-digitally-sign...

    Now you can skip the drive or wait for something to arrive in the mail and sign a document digitally instead. Tech tip: How to digitally sign a document on a PC, Mac, Android, or iPhone Skip to ...

  4. Microsoft Office password protection - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Office_password...

    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]

  5. LibreOffice - Wikipedia

    en.wikipedia.org/wiki/LibreOffice

    The ability to digitally sign PDF files in Windows; Toolbar buttons in Writer, Calc, Impress and Draw have been reorganized and improved; New color selector: Shows recently used document colors; Support for different color palettes and for .gpl GIMP palette format; Allows directly opening the color picker and choose another color

  6. Electronic signature - Wikipedia

    en.wikipedia.org/wiki/Electronic_signature

    An electronic signature, or e-signature, is data that is logically associated with other data and which is used by the signatory to sign the associated data. [1] [2] [3] This type of signature has the same legal standing as a handwritten signature as long as it adheres to the requirements of the specific regulation under which it was created (e.g., eIDAS in the European Union, NIST-DSS in the ...

  7. Digital signature - Wikipedia

    en.wikipedia.org/wiki/Digital_signature

    With a digital signature scheme, the central office can arrange beforehand to have a public key on file whose private key is known only to the branch office. The branch office can later sign a message and the central office can use the public key to verify the signed message was not a forgery before acting on it.

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