{"id":579542,"date":"2023-12-28T03:09:19","date_gmt":"2023-12-28T03:09:19","guid":{"rendered":"https:\/\/proxyelite.info\/glossary\/certificate-authority\/"},"modified":"2023-12-28T03:09:19","modified_gmt":"2023-12-28T03:09:19","slug":"certificate-authority","status":"publish","type":"glossary","link":"https:\/\/proxyelite.info\/vi\/glossary\/certificate-authority\/","title":{"rendered":"C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9"},"content":{"rendered":"<p>C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 (CA) \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady v\u00e0 b\u1ea3o m\u1eadt c\u1ee7a c\u00e1c trang web v\u00e0 d\u1ecbch v\u1ee5 tr\u1ef1c tuy\u1ebfn. B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p th\u00f4ng tin t\u1ed5ng quan to\u00e0n di\u1ec7n v\u1ec1 T\u1ed5 ch\u1ee9c ph\u00e1t h\u00e0nh ch\u1ee9ng ch\u1ec9, c\u00e1c lo\u1ea1i, t\u00ednh n\u0103ng ch\u00ednh, t\u00ecnh hu\u1ed1ng s\u1eed d\u1ee5ng, so s\u00e1nh v\u1edbi c\u00e1c thu\u1eadt ng\u1eef li\u00ean quan v\u00e0 m\u1ee9c \u0111\u1ed9 li\u00ean quan c\u1ee7a ch\u00fang v\u1edbi m\u00e1y ch\u1ee7 proxy.<\/p>\n<h2>C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9: T\u1ed5ng quan ng\u1eafn g\u1ecdn<\/h2>\n<p>C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9, th\u01b0\u1eddng \u0111\u01b0\u1ee3c vi\u1ebft t\u1eaft l\u00e0 CA, l\u00e0 m\u1ed9t th\u1ef1c th\u1ec3 \u0111\u00e1ng tin c\u1eady ch\u1ecbu tr\u00e1ch nhi\u1ec7m c\u1ea5p ch\u1ee9ng ch\u1ec9 k\u1ef9 thu\u1eadt s\u1ed1. C\u00e1c ch\u1ee9ng ch\u1ec9 n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c nh\u1eadn t\u00ednh x\u00e1c th\u1ef1c v\u00e0 kh\u1ea3 n\u0103ng m\u00e3 h\u00f3a c\u1ee7a c\u00e1c trang web v\u00e0 d\u1ecbch v\u1ee5 tr\u1ef1c tuy\u1ebfn. V\u1ec1 b\u1ea3n ch\u1ea5t, CA ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t c\u00f4ng ch\u1ee9ng vi\u00ean k\u1ef9 thu\u1eadt s\u1ed1, x\u00e1c th\u1ef1c t\u00ednh h\u1ee3p ph\u00e1p c\u1ee7a c\u00e1c th\u1ef1c th\u1ec3 ho\u1ea1t \u0111\u1ed9ng tr\u00ean internet.<\/p>\n<h2>M\u1edf r\u1ed9ng ch\u1ee7 \u0111\u1ec1: C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9<\/h2>\n<p>\u0110\u1ec3 t\u00ecm hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 l\u0129nh v\u1ef1c C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9, h\u00e3y c\u00f9ng kh\u00e1m ph\u00e1 c\u00e1c kh\u00eda c\u1ea1nh kh\u00e1c nhau c\u1ee7a kh\u00eda c\u1ea1nh quan tr\u1ecdng n\u00e0y c\u1ee7a b\u1ea3o m\u1eadt web.<\/p>\n<h2>C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9<\/h2>\n<p>C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 th\u1ec3 hi\u1ec7n m\u1ed9t s\u1ed1 t\u00ednh n\u0103ng ch\u00ednh g\u00f3p ph\u1ea7n t\u1ea1o n\u00ean t\u1ea7m quan tr\u1ecdng c\u1ee7a ch\u00fang trong h\u1ec7 sinh th\u00e1i tr\u1ef1c tuy\u1ebfn:<\/p>\n<ul>\n<li><strong>C\u1ea5p ch\u1ee9ng ch\u1ec9 s\u1ed1:<\/strong> CA c\u1ea5p ch\u1ee9ng ch\u1ec9 k\u1ef9 thu\u1eadt s\u1ed1 cho c\u00e1c trang web v\u00e0 d\u1ecbch v\u1ee5 tr\u1ef1c tuy\u1ebfn, x\u00e1c nh\u1eadn danh t\u00ednh v\u00e0 kh\u1ea3 n\u0103ng m\u00e3 h\u00f3a c\u1ee7a ch\u00fang.<\/li>\n<li><strong>\u0110\u1ed9 tin c\u1eady:<\/strong> CA \u0111\u01b0\u1ee3c c\u00e1c tr\u00ecnh duy\u1ec7t web v\u00e0 h\u1ec7 \u0111i\u1ec1u h\u00e0nh tin c\u1eady r\u1ed9ng r\u00e3i, \u0111\u1ea3m b\u1ea3o r\u1eb1ng ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 d\u1ef1a v\u00e0o c\u00e1c ch\u1ee9ng ch\u1ec9 do h\u1ecd c\u1ea5p.<\/li>\n<li><strong>Ch\u1ee9ng ch\u1ec9 g\u1ed1c:<\/strong> CA s\u1edf h\u1eefu ch\u1ee9ng ch\u1ec9 g\u1ed1c l\u00e0m n\u1ec1n t\u1ea3ng \u0111\u1ec3 c\u1ea5p c\u00e1c ch\u1ee9ng ch\u1ec9 kh\u00e1c. C\u00e1c ch\u1ee9ng ch\u1ec9 g\u1ed1c n\u00e0y \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t s\u1eb5n tr\u00ean h\u1ea7u h\u1ebft c\u00e1c thi\u1ebft b\u1ecb v\u00e0 tr\u00ecnh duy\u1ec7t.<\/li>\n<li><strong>C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng kh\u00f3a c\u00f4ng khai (PKI):<\/strong> CA l\u00e0 m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu c\u1ee7a PKI, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n li\u00ean l\u1ea1c an to\u00e0n b\u1eb1ng c\u00e1ch x\u00e1c th\u1ef1c ch\u1eef k\u00fd s\u1ed1 v\u00e0 m\u00e3 h\u00f3a d\u1eef li\u1ec7u.<\/li>\n<\/ul>\n<h2>C\u00e1c lo\u1ea1i c\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9<\/h2>\n<p>C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 c\u00f3 nhi\u1ec1u lo\u1ea1i kh\u00e1c nhau, m\u1ed7i lo\u1ea1i c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m ri\u00eang. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng ph\u00e2n t\u00edch c\u00e1c lo\u1ea1i n\u00e0y:<\/p>\n<table>\n<thead>\n<tr>\n<th>Ki\u1ec3u<\/th>\n<th>S\u1ef1 mi\u00eau t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>CA c\u00f4ng khai<\/td>\n<td>C\u00e1c t\u1ed5 ch\u1ee9c th\u01b0\u01a1ng m\u1ea1i cung c\u1ea5p gi\u1ea5y ch\u1ee9ng nh\u1eadn cho c\u00f4ng ch\u00fang.<\/td>\n<\/tr>\n<tr>\n<td>CA ri\u00eang<\/td>\n<td>C\u00e1c t\u1ed5 ch\u1ee9c duy tr\u00ec CA c\u1ee7a h\u1ecd \u0111\u1ec3 s\u1eed d\u1ee5ng n\u1ed9i b\u1ed9.<\/td>\n<\/tr>\n<tr>\n<td>CA doanh nghi\u1ec7p<\/td>\n<td>CA ph\u1ee5c v\u1ee5 c\u00e1c doanh nghi\u1ec7p l\u1edbn cho m\u1ee5c \u0111\u00edch n\u1ed9i b\u1ed9.<\/td>\n<\/tr>\n<tr>\n<td>CA ch\u00ednh ph\u1ee7<\/td>\n<td>C\u01a1 quan nh\u00e0 n\u01b0\u1edbc c\u1ea5p gi\u1ea5y ch\u1ee9ng nh\u1eadn s\u1eed d\u1ee5ng ch\u00ednh th\u1ee9c.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>K\u1ecbch b\u1ea3n s\u1eed d\u1ee5ng v\u00e0 th\u00e1ch th\u1ee9c<\/h2>\n<p>T\u1ed5 ch\u1ee9c ph\u00e1t h\u00e0nh ch\u1ee9ng ch\u1ec9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, bao g\u1ed3m b\u1ea3o m\u1eadt trang web, li\u00ean l\u1ea1c qua email v\u00e0 VPN. Tuy nhi\u00ean, v\u1eabn t\u1ed3n t\u1ea1i nh\u1eefng th\u00e1ch th\u1ee9c, ch\u1eb3ng h\u1ea1n nh\u01b0 vi\u1ec7c thu h\u1ed3i ch\u1ee9ng ch\u1ec9 v\u00e0 nhu c\u1ea7u v\u1ec1 c\u00e1c gi\u1ea3i ph\u00e1p qu\u1ea3n l\u00fd ch\u1ee9ng ch\u1ec9 hi\u1ec7u qu\u1ea3.<\/p>\n<h2>So s\u00e1nh v\u1edbi c\u00e1c \u0111i\u1ec1u kho\u1ea3n li\u00ean quan<\/h2>\n<p>H\u00e3y ph\u00e2n bi\u1ec7t T\u1ed5 ch\u1ee9c ph\u00e1t h\u00e0nh ch\u1ee9ng ch\u1ec9 v\u1edbi c\u00e1c thu\u1eadt ng\u1eef li\u00ean quan:<\/p>\n<table>\n<thead>\n<tr>\n<th>Thu\u1eadt ng\u1eef<\/th>\n<th>S\u1ef1 mi\u00eau t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Ch\u1ee9ng ch\u1ec9 SSL\/TLS<\/td>\n<td>Ch\u1ee9ng ch\u1ec9 c\u1ee5 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 duy\u1ec7t trang web an to\u00e0n.<\/td>\n<\/tr>\n<tr>\n<td>C\u01a1 quan \u0111\u0103ng k\u00fd<\/td>\n<td>C\u01a1 quan ch\u1ecbu tr\u00e1ch nhi\u1ec7m x\u00e1c minh ng\u01b0\u1eddi n\u1ed9p \u0111\u01a1n xin c\u1ea5p ch\u1ee9ng ch\u1ec9.<\/td>\n<\/tr>\n<tr>\n<td>Ch\u1ee9ng ch\u1ec9 t\u1ef1 k\u00fd<\/td>\n<td>Gi\u1ea5y ch\u1ee9ng nh\u1eadn do t\u1ed5 ch\u1ee9c m\u00e0 h\u1ecd x\u00e1c th\u1ef1c c\u1ea5p.<\/td>\n<\/tr>\n<tr>\n<td>M\u00e1y ch\u1ee7 proxy<\/td>\n<td>C\u00e1c b\u00ean trung gian t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt v\u00e0 quy\u1ec1n ri\u00eang t\u01b0 tr\u1ef1c tuy\u1ebfn.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 t\u01b0\u01a1ng lai<\/h2>\n<p>T\u01b0\u01a1ng lai c\u1ee7a C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 h\u1ee9a h\u1eb9n s\u1ebd c\u1ea3i thi\u1ec7n t\u00ednh b\u1ea3o m\u1eadt th\u00f4ng qua c\u00e1c ph\u01b0\u01a1ng ph\u00e1p x\u00e1c th\u1ef1c n\u00e2ng cao, ch\u1eb3ng h\u1ea1n nh\u01b0 x\u00e1c th\u1ef1c \u0111a y\u1ebfu t\u1ed1 v\u00e0 m\u1eadt m\u00e3 kh\u00e1ng l\u01b0\u1ee3ng t\u1eed. Vi\u1ec7c t\u00edch h\u1ee3p c\u00f4ng ngh\u1ec7 blockchain \u0111\u1ec3 qu\u1ea3n l\u00fd ch\u1ee9ng ch\u1ec9 c\u0169ng \u0111ang thu h\u00fat \u0111\u01b0\u1ee3c s\u1ef1 ch\u00fa \u00fd.<\/p>\n<h2>M\u00e1y ch\u1ee7 proxy v\u00e0 c\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9<\/h2>\n<p>M\u00e1y ch\u1ee7 proxy v\u00e0 C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 c\u00f3 li\u00ean quan ch\u1eb7t ch\u1ebd v\u1edbi nhau, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong b\u1ed1i c\u1ea3nh t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt v\u00e0 quy\u1ec1n ri\u00eang t\u01b0 tr\u1ef1c tuy\u1ebfn. M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 ch\u1eb7n v\u00e0 x\u00e1c th\u1ef1c ch\u1ee9ng ch\u1ec9 k\u1ef9 thu\u1eadt s\u1ed1, \u0111\u1ea3m b\u1ea3o r\u1eb1ng k\u1ebft n\u1ed1i c\u1ee7a ng\u01b0\u1eddi d\u00f9ng \u0111\u01b0\u1ee3c an to\u00e0n v\u00e0 \u0111\u00e1ng tin c\u1eady. Vi\u1ec7c t\u00edch h\u1ee3p n\u00e0y \u0111\u1eb7c bi\u1ec7t c\u00f3 l\u1ee3i khi s\u1eed d\u1ee5ng m\u00e1y ch\u1ee7 proxy cho c\u00e1c ho\u1ea1t \u0111\u1ed9ng nh\u01b0 qu\u00e9t web, trong \u0111\u00f3 ni\u1ec1m tin v\u00e0o t\u00ednh x\u00e1c th\u1ef1c c\u1ee7a trang web l\u00e0 \u0111i\u1ec1u t\u1ed1i quan tr\u1ecdng.<\/p>\n<h2>Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 T\u1ed5 ch\u1ee9c ph\u00e1t h\u00e0nh ch\u1ee9ng ch\u1ec9, h\u00e3y xem x\u00e9t kh\u00e1m ph\u00e1 c\u00e1c t\u00e0i nguy\u00ean c\u00f3 th\u1ea9m quy\u1ec1n sau:<\/p>\n<ol>\n<li><a target=\"_new\" rel=\"noopener\">C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 - Wikipedia<\/a><\/li>\n<li><a target=\"_new\" rel=\"noopener\">Kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n v\u1ec1 c\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 \u2013 GlobalSign<\/a><\/li>\n<li><a target=\"_new\" rel=\"noopener\">C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 PKI \u2013 DigiCert<\/a><\/li>\n<\/ol>\n<p>T\u00f3m l\u1ea1i, C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 l\u00e0 nh\u1eefng ng\u01b0\u1eddi b\u1ea3o v\u1ec7 kh\u00f4ng th\u1ec3 thi\u1ebfu cho s\u1ef1 tin c\u1eady v\u00e0 b\u1ea3o m\u1eadt tr\u1ef1c tuy\u1ebfn. Hi\u1ec3u \u0111\u01b0\u1ee3c vai tr\u00f2 v\u00e0 m\u1ee9c \u0111\u1ed9 li\u00ean quan c\u1ee7a ch\u00fang l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 ai \u0111i\u1ec1u h\u01b0\u1edbng b\u1ed1i c\u1ea3nh k\u1ef9 thu\u1eadt s\u1ed1, \u0111\u1eb7c bi\u1ec7t khi xem x\u00e9t s\u1ef1 t\u01b0\u01a1ng t\u00e1c c\u1ee7a ch\u00fang v\u1edbi c\u00e1c m\u00e1y ch\u1ee7 proxy nh\u1eb1m theo \u0111u\u1ed5i tr\u1ea3i nghi\u1ec7m v\u00e0 b\u1ea3o m\u1eadt tr\u1ef1c tuy\u1ebfn n\u00e2ng cao.<\/p>","protected":false},"featured_media":579543,"menu_order":0,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-579542","glossary","type-glossary","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/glossary\/579542","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":0,"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/glossary\/579542\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/media\/579543"}],"wp:attachment":[{"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/media?parent=579542"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}