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  2. Code signing - Wikipedia

    en.wikipedia.org/wiki/Code_signing

    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 ...

  3. Cryptography - Wikipedia

    en.wikipedia.org/wiki/Cryptography

    Cryptography. Cryptography, or cryptology (from Ancient Greek: κρυπτός, romanized: kryptós "hidden, secret"; and γράφειν graphein, "to write", or -λογία -logia, "study", respectively [1]), is the practice and study of techniques for secure communication in the presence of adversarial behavior. [2]

  4. Enigma machine - Wikipedia

    en.wikipedia.org/wiki/Enigma_machine

    The Enigma machine is a cipher device developed and used in the early- to mid-20th century to protect commercial, diplomatic, and military communication. It was employed extensively by Nazi Germany during World War II, in all branches of the German military. The Enigma machine was considered so secure that it was used to encipher the most top ...

  5. David J. Peterson - Wikipedia

    en.wikipedia.org/wiki/David_J._Peterson

    David Joshua Peterson (born January 20, 1981) is an American language creator. He came to prominence after creating the Dothraki and Valyrian languages for the television series Game of Thrones. He has subsequently worked on a number of other projects, including the films Dune and Dune: Part Two, for which he created the Chakobsa language.

  6. History of cryptography - Wikipedia

    en.wikipedia.org/wiki/History_of_cryptography

    Cryptography, the use of codes and ciphers to protect secrets, began thousands of years ago. [1] Until recent decades, it has been the story of what might be called classical cryptography — that is, of methods of encryption that use pen and paper, or perhaps simple mechanical aids. In the early 20th century, the invention of complex ...

  7. 2-Step Verification with a Security Key - AOL Help

    help.aol.com/articles/2-step-verification-with-a...

    When you get your Security Key back or get a new key, you can re-enable 2-Step Verification in your. Still need help? Call paid premium support at 1-800-358-4860 to get live expert help from AOL Customer Care. A security key is a physical device that gets uniquely associated with your AOL account after you enable it.

  8. A Woman Hid This Secret Code in Her Silk Dress in 1888 ... - AOL

    www.aol.com/lifestyle/woman-hid-secret-code-her...

    The code was tricky to break because only government officials creating weather maps used it. Adopted in 1887, the code allowed for six words to provide an entire report for a location.

  9. Secret decoder ring - Wikipedia

    en.wikipedia.org/wiki/Secret_decoder_ring

    A secret decoder ring (or secret decoder) is a device that allows one to decode a simple substitution cipher—or to encrypt a message by working in the opposite direction. [ 1 ] As inexpensive toys, secret decoders have often been used as promotional items by retailers, as well as radio and television programs, from the 1930s through to the ...

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