{"id":6157,"date":"2022-02-28T22:02:41","date_gmt":"2022-02-28T22:02:41","guid":{"rendered":"https:\/\/webstyleclub.website\/smart-card\/?p=6157"},"modified":"2022-09-15T01:12:55","modified_gmt":"2022-09-15T01:12:55","slug":"host-based-system-security","status":"publish","type":"post","link":"https:\/\/www.smartcardbasics.com\/host-based-system-security\/","title":{"rendered":"Host-Based System Security"},"content":{"rendered":"<p>A host-based system treats a card as a simple data carrier. Because of this, straight&nbsp;<a href=\"http:\/\/www.cardlogix.com\/products\/cards\/smart\/memory.asp\" target=\"_blank\" rel=\"noopener\">memory cards<\/a>&nbsp;can be used very cost-effectively for many systems. All protection of the data is done from the host computer. The card data may be encrypted but the transmission to the host can be vulnerable to attack. A common method of increasing the security is to write in the clear (not encrypted) a key that usually contains a date and\/or time along with a secret reference to a set of keys on the host. Each time the card is re-written the host can write a reference to the keys. This way each transmission is different. But parts of the keys are in the clear for hackers to analyze. This security can be increased by the use of smart memory cards that employ a password mechanism to prevent unauthorized reading of the data. Unfortunately the passwords can be sniffed in the clear. Access is then possible to the main memory. These methodologies are often used when a network can batch up the data regularly and compare values and card usage and generate a problem card list.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A host-based system treats a card as a simple data carrier. Because of this, straight&nbsp;memory cards&nbsp;can be used very cost-effectively for many systems. All protection of the data is done from the host computer. The card data may be encrypted but the transmission to the host can be vulnerable to attack. A common method of [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5649,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[175],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.6.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Host-Based System Security | Smart Card Basics<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.smartcardbasics.com\/host-based-system-security\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Host-Based System Security | Smart Card Basics\" \/>\n<meta property=\"og:description\" content=\"A host-based system treats a card as a simple data carrier. Because of this, straight&nbsp;memory cards&nbsp;can be used very cost-effectively for many systems. All protection of the data is done from the host computer. The card data may be encrypted but the transmission to the host can be vulnerable to attack. A common method of [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.smartcardbasics.com\/host-based-system-security\/\" \/>\n<meta property=\"og:site_name\" content=\"Smart Card Basics\" \/>\n<meta property=\"article:published_time\" content=\"2022-02-28T22:02:41+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-09-15T01:12:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.smartcardbasics.com\/wp-content\/uploads\/2020\/09\/05.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"484\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" 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