{"id":460,"date":"2024-06-15T04:52:34","date_gmt":"2024-06-15T04:52:34","guid":{"rendered":"https:\/\/dichvucntt.vn\/?p=460"},"modified":"2024-06-15T07:13:51","modified_gmt":"2024-06-15T07:13:51","slug":"ssl-la-gi-va-tai-sao-can-su-dung-ssl","status":"publish","type":"post","link":"https:\/\/dichvucntt.vn\/?p=460","title":{"rendered":"SSL l\u00e0 g\u00ec v\u00e0 t\u1ea1i sao c\u1ea7n s\u1eed d\u1ee5ng SSL?"},"content":{"rendered":"<div class=\"bld\"><strong>SSL l\u00e0 g\u00ec?<\/strong><\/div>\n<p>SSL l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a t\u1eeb Secure Sockets Layer. \u0110\u00e2y l\u00e0 m\u1ed9t ti\u00eau chu\u1ea9n an ninh c\u00f4ng ngh\u1ec7 to\u00e0n c\u1ea7u t\u1ea1o ra m\u1ed9t li\u00ean k\u1ebft gi\u1eefa m\u00e1y ch\u1ee7 web v\u00e0 tr\u00ecnh duy\u1ec7t. Li\u00ean k\u1ebft n\u00e0y \u0111\u1ea3m b\u1ea3o t\u1ea5t c\u1ea3 d\u1eef li\u1ec7u trao \u0111\u1ed5i gi\u1eefa m\u00e1y ch\u1ee7 web v\u00e0 tr\u00ecnh duy\u1ec7t lu\u00f4n \u0111\u01b0\u1ee3c b\u1ea3o m\u1eadt v\u00e0 an to\u00e0n.<\/p>\n<p>SSL \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u1ea5t c\u1ea3 c\u00e1c d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n gi\u1eefa c\u00e1c m\u00e1y ch\u1ee7 web v\u00e0 c\u00e1c tr\u00ecnh duy\u1ec7t \u0111\u01b0\u1ee3c mang t\u00ednh ri\u00eang t\u01b0, t\u00e1ch r\u1eddi. SSL l\u00e0 m\u1ed9t chu\u1ea9n c\u00f4ng ngh\u1ec7 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng b\u1edfi h\u00e0ng tri\u1ec7u trang web trong vi\u1ec7c b\u1ea3o v\u1ec7 c\u00e1c giao d\u1ecbch tr\u1ef1c tuy\u1ebfn v\u1edbi kh\u00e1ch h\u00e0ng c\u1ee7a h\u1ecd.<\/p>\n<p><strong>SSL ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o ?<\/strong><\/p>\n<p>Https s\u1eed d\u1ee5ng giao th\u1ee9c SSL \u0111\u1ec3 b\u1ea3o m\u1eadt th\u00f4ng tin li\u00ean l\u1ea1c b\u1eb1ng c\u00e1ch truy\u1ec1n d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a. V\u1ec1 c\u01a1 b\u1ea3n, SSL ho\u1ea1t \u0111\u1ed9ng v\u1edbi c\u00e1c kh\u00e1i ni\u1ec7m sau:<\/p>\n<ul>\n<li id=\"_asymmetric-cryptography-0\"><strong>Asymmetric Cryptography<\/strong><\/li>\n<\/ul>\n<p>M\u1eadt m\u00e3 b\u1ea5t \u0111\u1ed1i x\u1ee9ng (c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 M\u00e3 h\u00f3a kh\u00f4ng \u0111\u1ed1i x\u1ee9ng ho\u1eb7c M\u1eadt m\u00e3 kh\u00f3a c\u00f4ng khai) s\u1eed d\u1ee5ng m\u1ed9t c\u1eb7p kh\u00f3a li\u00ean quan \u0111\u1ebfn to\u00e1n h\u1ecdc \u0111\u1ec3 m\u00e3 h\u00f3a v\u00e0 gi\u1ea3i m\u00e3 d\u1eef li\u1ec7u. Trong m\u1ed9t c\u1eb7p kh\u00f3a, m\u1ed9t kh\u00f3a \u0111\u01b0\u1ee3c chia s\u1ebb v\u1edbi b\u1ea5t k\u1ef3 ai quan t\u00e2m \u0111\u1ebfn giao ti\u1ebfp. N\u00f3 g\u1ecdi l\u00e0 Public Key v\u00e0 kh\u00f3a kh\u00e1c trong c\u1eb7p kh\u00f3a \u0111\u01b0\u1ee3c gi\u1eef b\u00ed m\u1eadt v\u00e0 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 Private Key. \u1ede \u0111\u00e2y, c\u00e1c kh\u00f3a \u0111\u1ec1 c\u1eadp \u0111\u1ebfn m\u1ed9t gi\u00e1 tr\u1ecb to\u00e1n h\u1ecdc v\u00e0 \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u1ed9t thu\u1eadt to\u00e1n to\u00e1n h\u1ecdc \u0111\u1ec3 m\u00e3 h\u00f3a ho\u1eb7c gi\u1ea3i m\u00e3 d\u1eef li\u1ec7u. Trong m\u1eadt m\u00e3 kh\u00f4ng \u0111\u1ed1i x\u1ee9ng, d\u1eef li\u1ec7u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c k\u00fd b\u1eb1ng kh\u00f3a ri\u00eang, ch\u1ec9 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gi\u1ea3i m\u00e3 b\u1eb1ng kh\u00f3a c\u00f4ng khai li\u00ean quan trong m\u1ed9t c\u1eb7p<\/p>\n<figure id=\"attachment_461\" aria-describedby=\"caption-attachment-461\" style=\"width: 649px\" class=\"wp-caption alignnone\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-461\" src=\"https:\/\/dichvucntt.vn\/wp-content\/uploads\/2024\/06\/1.png\" alt=\"\" width=\"649\" height=\"344\" srcset=\"https:\/\/dichvucntt.vn\/wp-content\/uploads\/2024\/06\/1.png 649w, https:\/\/dichvucntt.vn\/wp-content\/uploads\/2024\/06\/1-300x159.png 300w\" sizes=\"(max-width: 649px) 100vw, 649px\" \/><figcaption id=\"caption-attachment-461\" class=\"wp-caption-text\">SSL s\u1eed d\u1ee5ng m\u1eadt m\u00e3 kh\u00f4ng \u0111\u1ed1i x\u1ee9ng \u0111\u1ec3 b\u1eaft \u0111\u1ea7u giao ti\u1ebfp \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 SSL handshake. C\u00e1c thu\u1eadt to\u00e1n m\u00e3 h\u00f3a kh\u00f3a b\u1ea5t \u0111\u1ed1i x\u1ee9ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t bao g\u1ed3m EIGamal, RSA, DSA, k\u1ef9 thu\u1eadt \u0111\u01b0\u1eddng cong Elliptic v\u00e0 PKCS.<\/figcaption><\/figure>\n<ul>\n<li id=\"_symmetric-cryptography-1\"><strong>Symmetric Cryptography<\/strong><\/li>\n<\/ul>\n<p>Trong m\u1eadt m\u00e3 \u0111\u1ed1i x\u1ee9ng, ch\u1ec9 c\u00f3 m\u1ed9t kh\u00f3a m\u00e3 h\u00f3a v\u00e0 gi\u1ea3i m\u00e3 d\u1eef li\u1ec7u. C\u1ea3 ng\u01b0\u1eddi g\u1eedi v\u00e0 ng\u01b0\u1eddi nh\u1eadn \u0111\u1ec1u ph\u1ea3i c\u00f3 kh\u00f3a n\u00e0y m\u00e0 ch\u1ec9 h\u1ecd m\u1edbi bi\u1ebft.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-462\" src=\"https:\/\/dichvucntt.vn\/wp-content\/uploads\/2024\/06\/2.png\" alt=\"\" width=\"651\" height=\"232\" srcset=\"https:\/\/dichvucntt.vn\/wp-content\/uploads\/2024\/06\/2.png 651w, https:\/\/dichvucntt.vn\/wp-content\/uploads\/2024\/06\/2-300x107.png 300w\" sizes=\"(max-width: 651px) 100vw, 651px\" \/><\/p>\n<p>SSL s\u1eed d\u1ee5ng m\u1eadt m\u00e3 \u0111\u1ed1i x\u1ee9ng b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng kh\u00f3a phi\u00ean sau khi qu\u00e1 tr\u00ecnh b\u1eaft tay ban \u0111\u1ea7u \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n. C\u00e1c thu\u1eadt to\u00e1n \u0111\u1ed1i x\u1ee9ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t l\u00e0 AES-128, AES-192 v\u00e0 AES-256.<\/p>\n<p><strong>Nh\u1eefng g\u00ec x\u1ea3y ra khi m\u1ed9t m\u00e1y t\u00ednh k\u1ebft n\u1ed1i v\u1edbi m\u1ed9t Website \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng th\u1ef1c\u00a0<\/strong><\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-463\" src=\"https:\/\/dichvucntt.vn\/wp-content\/uploads\/2024\/06\/ssl-3.jpg\" alt=\"\" width=\"584\" height=\"279\" srcset=\"https:\/\/dichvucntt.vn\/wp-content\/uploads\/2024\/06\/ssl-3.jpg 584w, https:\/\/dichvucntt.vn\/wp-content\/uploads\/2024\/06\/ssl-3-300x143.jpg 300w\" sizes=\"(max-width: 584px) 100vw, 584px\" \/><\/p>\n<p><strong>C\u00e1ch x\u00e1c \u0111\u1ecbnh website c\u00f3 ch\u1ee9ng ch\u1ec9 s\u1ed1 SSL hay kh\u00f4ng\u00a0<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone  wp-image-464\" src=\"https:\/\/dichvucntt.vn\/wp-content\/uploads\/2024\/06\/ssl-4.png\" alt=\"\" width=\"624\" height=\"601\" srcset=\"https:\/\/dichvucntt.vn\/wp-content\/uploads\/2024\/06\/ssl-4.png 540w, https:\/\/dichvucntt.vn\/wp-content\/uploads\/2024\/06\/ssl-4-300x289.png 300w\" sizes=\"(max-width: 624px) 100vw, 624px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"attachment-medium \" title=\"VNPT SSL - Ch\u1ee9ng th\u01b0 s\u1ed1 c\u00f4ng c\u1ed9ng qu\u1ed1c t\u1ebf\" src=\"https:\/\/vnpttphcm.com.vn\/wp-content\/uploads\/2024\/01\/check-circle-solid.svg\" alt=\"check circle solid\" width=\"31\" height=\"31\" \/>\u00a0 \u00a0 SSL H\u1ee2P L\u1ec6 : Th\u00f4ng tin, d\u1eef li\u1ec7u trao \u0111\u1ed5i \u0111\u01b0\u1ee3c b\u1ea3o m\u1eadt v\u00e0 trang web c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c tin c\u1eady.<\/p>\n<div class=\"icon-box featured-box icon-box-left text-left\">\n<div class=\"icon-box-text last-reset\">\n<p><img loading=\"lazy\" decoding=\"async\" class=\"attachment-medium \" title=\"VNPT SSL - Ch\u1ee9ng th\u01b0 s\u1ed1 c\u00f4ng c\u1ed9ng qu\u1ed1c t\u1ebf\" src=\"https:\/\/vnpttphcm.com.vn\/wp-content\/uploads\/2024\/01\/circle-xmark-solid.svg\" alt=\"circle xmark solid\" width=\"30\" height=\"30\" \/>\u00a0 \u00a0 SSL kh\u00f4ng h\u1ee3p l\u1ec7 : Th\u00f4ng tin, d\u1eef li\u1ec7u c\u00f3 th\u1ec3 b\u1ecb nghe l\u00e9n ho\u1eb7c \u0111\u00e1nh c\u1eafp trong qu\u00e1 tr\u00ecnh truy c\u1eadp website c\u1ee7a b\u1ea1n.<\/p>\n<\/div>\n<\/div>\n<p><strong>L\u1ee3i \u00edch khi s\u1eed d\u1ee5ng SSL<\/strong><\/p>\n<ul>\n<li>B\u1ea1n \u0111\u0103ng k\u00fd domain \u0111\u1ec3 s\u1eed d\u1ee5ng c\u00e1c d\u1ecbch v\u1ee5 website, email v.v&#8230; -&gt; lu\u00f4n c\u00f3 nh\u1eefng l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt -&gt; hacker t\u1ea5n c\u00f4ng -&gt; SSL b\u1ea3o v\u1ec7 website v\u00e0 kh\u00e1ch h\u00e0ng c\u1ee7a b\u1ea1n.<\/li>\n<li>B\u1ea3o m\u1eadt d\u1eef li\u1ec7u: d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a v\u00e0 ch\u1ec9 ng\u01b0\u1eddi nh\u1eadn \u0111\u00edch th\u1ef1c m\u1edbi c\u00f3 th\u1ec3 gi\u1ea3i m\u00e3.<\/li>\n<li>To\u00e0n v\u1eb9n d\u1eef li\u1ec7u: d\u1eef li\u1ec7u kh\u00f4ng b\u1ecb thay \u0111\u1ed5i b\u1edfi tin t\u1eb7c.<\/li>\n<li>Ch\u1ed1ng ch\u1ed1i b\u1ecf: \u0111\u1ed1i t\u01b0\u1ee3ng th\u1ef1c hi\u1ec7n g\u1eedi d\u1eef li\u1ec7u kh\u00f4ng th\u1ec3 ph\u1ee7 nh\u1eadn d\u1eef li\u1ec7u c\u1ee7a m\u00ecnh.<\/li>\n<li><\/li>\n<li>B\u1ea3o m\u1eadt v\u00e0 m\u00e3 h\u00f3a c\u00e1c th\u00f4ng \u0111i\u1ec7p trao \u0111\u1ed5i gi\u1eefa tr\u00ecnh duy\u1ec7t v\u00e0 server.<\/li>\n<li>B\u1ea3o m\u1eadt c\u00e1c giao d\u1ecbch gi\u1eefa kh\u00e1ch h\u00e0ng v\u00e0 doanh nghi\u1ec7p, c\u00e1c d\u1ecbch v\u1ee5 truy nh\u1eadp h\u1ec7 th\u1ed1ng.<\/li>\n<li>B\u1ea3o m\u1eadt webmail v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 Outlook Web Acess, Exchange, v\u00e0 Office Communication Server.<\/li>\n<li>B\u1ea3o m\u1eadt c\u00e1c \u1ee9ng d\u1ee5ng \u1ea3o h\u00f3a nh\u01b0 Citrix Delivery Platform ho\u1eb7c c\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec7n to\u00e1n m\u00e2y.<\/li>\n<li>B\u1ea3o m\u1eadt d\u1ecbch v\u1ee5 FTP.<\/li>\n<li>B\u1ea3o m\u1eadt truy c\u1eadp Control panel.<\/li>\n<li>B\u1ea3o m\u1eadt c\u00e1c d\u1ecbch v\u1ee5 truy\u1ec1n d\u1eef li\u1ec7u trong m\u1ea1ng n\u1ed9i b\u1ed9, file sharing, extranet.<\/li>\n<li>B\u1ea3o m\u1eadt VPN Access Servers, Citrix Access Gateway.<\/li>\n<li>N\u00e2ng cao h\u00ecnh \u1ea3nh, th\u01b0\u01a1ng hi\u1ec7u v\u00e0 uy t\u00edn doanh nghi\u1ec7p.<\/li>\n<li>T\u1ea1o l\u1ee3i th\u1ebf c\u1ea1nh tranh, t\u0103ng ni\u1ec1m tin c\u1ee7a kh\u00e1ch h\u00e0ng \u0111\u1ed1i v\u1edbi website, t\u0103ng s\u1ed1 l\u01b0\u1ee3ng giao d\u1ecbch, gi\u00e1 tr\u1ecb giao d\u1ecbch tr\u1ef1c tuy\u1ebfn c\u1ee7a kh\u00e1ch h\u00e0ng. Website kh\u00f4ng \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c v\u00e0 b\u1ea3o m\u1eadt s\u1ebd lu\u00f4n \u1ea9n ch\u1ee9a nguy c\u01a1 b\u1ecb x\u00e2m nh\u1eadp d\u1eef li\u1ec7u, d\u1eabn \u0111\u1ebfn h\u1eadu qu\u1ea3 kh\u00e1ch h\u00e0ng kh\u00f4ng tin t\u01b0\u1edfng s\u1eed d\u1ee5ng d\u1ecbch v\u1ee5.<\/li>\n<\/ul>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin chi ti\u1ebft,vui l\u00f2ng li\u00ean h\u1ec7 hotline 0818.333.387<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SSL l\u00e0 g\u00ec? SSL l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a t\u1eeb Secure Sockets Layer. \u0110\u00e2y l\u00e0 m\u1ed9t<\/p>\n","protected":false},"author":1,"featured_media":465,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[60],"tags":[78,77],"class_list":["post-460","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-an-ninh-va-bao-mat","tag-chung-chi-so","tag-ssl"],"acf":[],"_links":{"self":[{"href":"https:\/\/dichvucntt.vn\/index.php?rest_route=\/wp\/v2\/posts\/460","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dichvucntt.vn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dichvucntt.vn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dichvucntt.vn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dichvucntt.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=460"}],"version-history":[{"count":6,"href":"https:\/\/dichvucntt.vn\/index.php?rest_route=\/wp\/v2\/posts\/460\/revisions"}],"predecessor-version":[{"id":471,"href":"https:\/\/dichvucntt.vn\/index.php?rest_route=\/wp\/v2\/posts\/460\/revisions\/471"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dichvucntt.vn\/index.php?rest_route=\/wp\/v2\/media\/465"}],"wp:attachment":[{"href":"https:\/\/dichvucntt.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=460"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dichvucntt.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=460"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dichvucntt.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=460"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}