User talk:Sandy Harris/illusrations

Deleted illustrations

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  The German Lorenz cipher machine, used in World War II for encryption of very high-level general staff messages
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  The Ancient Greek scytale, probably much like this modern reconstruction, may have been one of the earliest devices used to implement a cipher.
• File:Nsa-enigma.jpg

  The Enigma machine, used in several variants by the German military between the late 1920s and the end of World War II, implemented a complex electro-mechanical cipher to protect sensitive communications. Breaking the Enigma cipher at Polish Biuro Szyfrów, and the subsequent large-scale decryption of Enigma traffic at Bletchley Park, was an important factor contributing to the Allied victory.
• File:Smartcard.JPG

  A credit card with smart card capabilities. Smart cards attempt to combine portability with the power to compute modern cryptographic algorithms.
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  One round (out of 8.5) of the patented IDEA cipher, used in some versions of PGP for high-speed encryption of, for instance, e-mail
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  Whitfield Diffie and Martin Hellman, inventors of public-key cryptography
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  Padlock icon from the Firefox web browser, meant to indicate a page has been sent in SSL or TLS-encrypted protected form. But note that a properly subverted browser might mislead a user by displaying some similar icon when a transmission is not being protected by SSL or TLS. Security is not a straightforward issue.