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  2. Digital selective calling - Wikipedia

    en.wikipedia.org/wiki/Digital_Selective_Calling

    Digital selective calling. Digital selective calling ( DSC) is a standard for transmitting predefined digital messages via the medium-frequency (MF), high-frequency (HF) and very-high-frequency (VHF) maritime radio systems. It is a core part of the Global Maritime Distress Safety System (GMDSS). [1]

  3. List of airline codes - Wikipedia

    en.wikipedia.org/wiki/List_of_airline_codes

    Download as PDF; Printable version; ... DSC Addis Air Cargo Services: ... FAST TRACK United Kingdom ICAO code no longer allocated FTC

  4. Digital signal controller - Wikipedia

    en.wikipedia.org/wiki/Digital_signal_controller

    A digital signal controller ( DSC) is a hybrid of microcontrollers and digital signal processors (DSPs). Like microcontrollers, DSCs have fast interrupt responses, offer control-oriented peripherals like PWMs and watchdog timers, and are usually programmed using the C programming language, although they can be programmed using the device's ...

  5. Online Certificate Status Protocol - Wikipedia

    en.wikipedia.org/wiki/Online_Certificate_Status...

    Digital certificate. Website. RFC 6960: OCSP. RFC 8954: OCSP Nonce Extension. The Online Certificate Status Protocol ( OCSP) is an Internet protocol used for obtaining the revocation status of an X.509 digital certificate. [2] It is described in RFC 6960 and is on the Internet standards track. It was created as an alternative to certificate ...

  6. Certificate revocation list - Wikipedia

    en.wikipedia.org/wiki/Certificate_revocation_list

    This reversible status can be used to note the temporary invalidity of the certificate (e.g., if the user is unsure if the private key has been lost). If, in this example, the private key was found and nobody had access to it, the status could be reinstated, and the certificate is valid again, thus removing the certificate from future CRLs.

  7. Blue force tracking - Wikipedia

    en.wikipedia.org/wiki/Blue_Force_Tracking

    Blue force tracking is a United States military term for a GPS -enabled capability that provides military commanders and forces with location information about friendly (and despite its name, also hostile) military forces. In NATO military symbology, blue typically denotes friendly forces. The capability provides a common picture of the ...

  8. List of airline codes (K) - Wikipedia

    en.wikipedia.org/wiki/List_of_airline_codes_(K)

    This is a list of all airline codes. The table lists the IATA airline designators , the ICAO airline designators and the airline call signs (telephony designator). Historical assignments are also included for completeness.

  9. 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 ...