{"product_id":"nsa-encryption-devices-phillip-holdridge-9781519223432","title":"NSA Encryption Devices: Encryption Systems of the National Security Agency","description":"The National Security Agency took over responsibility for all U.S. Government encryption systems when it was formed in 1952. The technical details of most NSA-approved systems are still classified, but much more about its early systems have become known and its most modern systems share at least some features with commercial products.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Phillip Holdridge\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 1519223439\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781519223432\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Createspace Independent Publishing Platform\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 11\/11\/2015\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 128\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.69lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 11.02h x 8.50w x 0.27d","brand":"Phillip Holdridge","offers":[{"title":"Paperback","offer_id":43985440571647,"sku":"9781519223432","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_5cb2d926-73c2-4779-a0cd-b69257eea080.jpg?v=1683277586","url":"https:\/\/www.whiterainbookhouse.com\/products\/nsa-encryption-devices-phillip-holdridge-9781519223432","provider":"WR Book House","version":"1.0","type":"link"}