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  2. Scancode - Wikipedia

    en.wikipedia.org/wiki/Scancode

    PC keyboards since the PS/2 keyboard support up to three scancode sets. The most commonly encountered are the "XT" ("set 1") scancodes, based on the 83-key keyboard used by the IBM PC XT and earlier. These mostly consist of a single byte; the low 7 bits identify the key, and the most significant bit is clear for a key press or set for a key ...

  3. Key code - Wikipedia

    en.wikipedia.org/wiki/Key_code

    The bitting code is used in conjunction with a key's Depth and Spacing Number to completely determine all relevant information regarding the key's geometry. [1] Each number in the bitting code corresponds to a cut on the key blade. For example, a bitting code of 11111 with Depth and Spacing Number 46 specifies a Kwikset key with five shallow ...

  4. Keycode - Wikipedia

    en.wikipedia.org/wiki/Keycode

    Keycode is different from scancode, the sequence of data generated when pressing or releasing a key on a computer keyboard, however, in legacy documents it may still refer to scancode. Keycode or may refer to: Keykode, an Eastman Kodak's a bar coding placed at regular intervals on negative films; Keycode, for a lock

  5. Key generator - Wikipedia

    en.wikipedia.org/wiki/Key_generator

    A key generator [1] [2] [3] is a protocol or algorithm that is used in many cryptographic protocols to generate a sequence with many pseudo-random characteristics.

  6. DX encoding - Wikipedia

    en.wikipedia.org/wiki/DX_encoding

    Agfa APX 400, cartridge number 017712. Next to the film exit lip is an Interleaved 2 of 5 barcode and a printed number. The six digits represent the I3A assigned DX number (middle four digits), the number of exposures (last digit) and a proprietary manufacturer's code (first digit). The DX number identifies the manufacturer, film type, and by ...

  7. Rolling code - Wikipedia

    en.wikipedia.org/wiki/Rolling_code

    34 bits are not encrypted: a 28-bit serial number, 4 bits of button information, and 2 status bits (repeat and low battery indicators). 32 bits are encrypted (the rolling code): 4 bits of button information, 2 bits of OVR (used to extend counter value), 10 bits of DISC (discrimination value; often the low 10 bits of the serial number), and a 16 ...

  8. USB human interface device class - Wikipedia

    en.wikipedia.org/wiki/USB_human_interface_device...

    The USB HID class is defined in a number of documents provided by the USB Implementers Forum's Device Working Group. The primary document used to describe the USB HID class is the Device Class Definition for HID 1.11.

  9. Cryptographically secure pseudorandom number generator

    en.wikipedia.org/wiki/Cryptographically_secure...

    When the maximum number of bits output from this PRNG is equal to the 2 blocksize, the resulting output delivers the mathematically expected security level that the key size would be expected to generate, but the output is shown to not be indistinguishable from a true random number generator. [24] When the maximum number of bits output from ...