How Encryption Keeps Your Data Safe

Start protecting yourself on the web at https://NordVPN.com/SCISHOW or use code SCISHOW to save 75% off of a 3-year Virtual Private Network plan, plus 1 month free. Keeping our data safe and secure is necessary in today's world, but a lot of the encryption we depend on has been in development for thousands of years! Hosted by: Stefan Chin Head to https://scishowfinds.com/ for hand selected artifacts of the universe! ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: Lazarus G, Sam Lutfi, D.A. Noe, الخليفي سلطان, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Patrick D. Ashmore, charles george, Kevin Bealer, Chris Peters ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://book.itep.ru/depository/crypto/Cryptography_history.pdf https://www.sans.org/reading-room/whitepapers/vpns/history-encryption-730 http://cryptogramma.com/cryptogramma/How_it_works.html https://books.google.com/books?id=Zb2RBQAAQBAJ&lpg=PA14&ots=ycTpjodUS3&pg=PA14#v=onepage&f=false https://www.britannica.com/topic/transposition-cipher https://books.google.com/books?id=o3YbiVuTg70C&lpg=PP1&pg=PT29#v=onepage&q&f=false http://penelope.uchicago.edu/Thayer/E/Roman/Texts/Plutarch/Lives/Lysander*.html https://www.coursera.org/lecture/symmetric-crypto/product-cipher-d1DgA http://www.moserware.com/2009/09/stick-figure-guide-to-advanced.html https://www.youtube.com/watch?v=aH6h52aMGT8 https://dl.acm.org/citation.cfm?id=1824151 http://www.networkdls.com/Articles/tr-601.pdf ftp://ftp.rsasecurity.com/pub/pdfs/tr701.pdf https://link.springer.com/content/pdf/10.1007%2FBFb0040277.pdf http://cacr.uwaterloo.ca/hac/about/chap6.pdf https://www.youtube.com/watch?v=MsqqpO9R5Hc https://www.youtube.com/watch?v=GSIDS_lvRv4 https://www.digicert.com/TimeTravel/math.htm