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  2. AES key schedule - Wikipedia

    en.wikipedia.org/wiki/AES_key_schedule

    AES key schedule. The Advanced Encryption Standard uses a key schedule to expand a short key into a number of separate round keys. The three AES variants have a different number of rounds. Each variant requires a separate 128-bit round key for each round plus one more. [note 1] The key schedule produces the needed round keys from the initial key.

  3. Key schedule - Wikipedia

    en.wikipedia.org/wiki/Key_schedule

    Key schedule. The key schedule of DES ("<<<" denotes a left rotation), showing the calculation of each round key ("Subkey"). In cryptography, the so-called product ciphers are a certain kind of cipher, where the (de-)ciphering of data is typically done as an iteration of rounds. The setup for each round is generally the same, except for round ...

  4. Shift key - Wikipedia

    en.wikipedia.org/wiki/Shift_key

    The Shift key ⇧ Shift is a modifier key on a keyboard, used to type capital letters and other alternate "upper" characters. There are typically two shift keys, on the left and right sides of the row below the home row. The Shift key's name originated from the typewriter, where one had to press and hold the button to shift up the case stamp to ...

  5. Derived unique key per transaction - Wikipedia

    en.wikipedia.org/wiki/Derived_unique_key_per...

    In cryptography, Derived Unique Key Per Transaction (DUKPT) is a key management scheme in which for every transaction, a unique key is used which is derived from a fixed key. Therefore, if a derived key is compromised, future and past transaction data are still protected since the next or prior keys cannot be determined easily.

  6. Keyboard shortcuts in AOL Mail - AOL Help

    help.aol.com/articles/keyboard-shortcuts-in-aol-mail

    Keyboard shortcuts in AOL Mail. Keyboard shortcuts make it easier and quicker to perform some simple tasks in your AOL Mail. Access all shortcuts by pressing shift +? on your keyboard. All shortcuts are formatted for Windows computers, but most will work on a Mac by substituting Cmd for Ctrl or Option for Alt.

  7. Portal (video game) - Wikipedia

    en.wikipedia.org/wiki/Portal_(video_game)

    Portal is a 2007 puzzle-platform game developed and published by Valve.It was released in a bundle, The Orange Box, for Windows, Xbox 360 and PlayStation 3, and has been since ported to other systems, including Mac OS X, Linux, Android (via Nvidia Shield), and Nintendo Switch.

  8. Minimum-shift keying - Wikipedia

    en.wikipedia.org/wiki/Minimum-shift_keying

    In digital modulation, minimum-shift keying ( MSK) is a type of continuous-phase frequency-shift keying that was developed in the late 1950s by Collins Radio employees Melvin L. Doelz and Earl T. Heald. [1] Similar to OQPSK, MSK is encoded with bits alternating between quadrature components, with the Q component delayed by half the symbol period.

  9. Crew scheduling - Wikipedia

    en.wikipedia.org/wiki/Crew_scheduling

    Crew scheduling involves assigning complementary crews for each scheduled trip based on the timetable for the next day or a short period. [2] In rail transportation, crew scheduling involves generating crew duties for conductors and train operators. The problem is computationally difficult and there are competing mathematical methods of solving ...

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