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  2. Document Structuring Conventions - Wikipedia

    en.wikipedia.org/wiki/Document_Structuring...

    Document Structuring Conventions, or DSC, is a set of standards for PostScript, based on the use of comments, that specifies a way to structure a PostScript file and a way to expose that structure in a machine-readable way. A PostScript file that conforms to DSC is called a conforming document . The need for a structuring convention arises ...

  3. Digital Signature Algorithm - Wikipedia

    en.wikipedia.org/wiki/Digital_Signature_Algorithm

    The Digital Signature Algorithm ( DSA) is a public-key cryptosystem and Federal Information Processing Standard for digital signatures, based on the mathematical concept of modular exponentiation and the discrete logarithm problem. In a public-key cryptosystem, two keys are generated: data can only be encrypted with the public key and encrypted ...

  4. Code signing - Wikipedia

    en.wikipedia.org/wiki/Code_signing

    Code signing is the process of digitally signing executables and scripts to confirm the software author and guarantee that the code has not been altered or corrupted since it was signed. The process employs the use of a cryptographic hash to validate authenticity and integrity. [1] Code signing was invented in 1995 by Michael Doyle, as part of ...

  5. List of filename extensions (A–E) - Wikipedia

    en.wikipedia.org/wiki/List_of_filename_extensions...

    Security certificate Microsoft Windows: CGM: Computer Graphics Metafile vector graphics A&L - HG - many CHM: Compiled Help File Microsoft Windows, Help Explorer Viewer CHO: ChordPro lead sheet (lyrics and chords) ChordPro and similar tools CIA: Decrypted Nintendo 3DS ROM cartridge Nintendo 3DS: CIF: Crystallographic Information File

  6. List of file signatures - Wikipedia

    en.wikipedia.org/wiki/List_of_file_signatures

    List of file signatures. This is a list of file signatures, data used to identify or verify the content of a file. Such signatures are also known as magic numbers or Magic Bytes. Many file formats are not intended to be read as text. If such a file is accidentally viewed as a text file, its contents will be unintelligible.

  7. List of post-nominal letters (United Kingdom) - Wikipedia

    en.wikipedia.org/wiki/List_of_post-nominal...

    This is a list of post-nominal letters used in the United Kingdom after a person's name in order to indicate their positions, qualifications, memberships, or other status. . There are various established orders for giving these, e.g. from the Ministry of Justice, Debrett's, and A & C Black's Titles and Forms of Address, which are generally in close agreement; this order is followed in the li

  8. Doctor of Science - Wikipedia

    en.wikipedia.org/wiki/Doctor_of_Science

    A Doctor of Science (Latin: Scientiae Doctor; most commonly abbreviated DSc or ScD) is a science doctorate awarded in a number of countries throughout the world.In some countries, a Doctor of Science is the degree used for the standard doctorate in the sciences; elsewhere a Doctor of Science is a "higher doctorate" awarded in recognition of a substantial and sustained contribution to ...

  9. Fix security certificate error messages in Internet Explorer

    help.aol.com/articles/message-the-security...

    Seeing security certificate errors when visiting certain websites? Learn how to remedy this issue in Internet Explorer.