{"id":478811,"date":"2023-08-09T09:38:29","date_gmt":"2023-08-09T09:38:29","guid":{"rendered":""},"modified":"2023-09-05T11:17:37","modified_gmt":"2023-09-05T11:17:37","slug":"s-key","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/s-key\/","title":{"rendered":"S\/Kh\u00f3a"},"content":{"rendered":"<p>Th\u00f4ng tin t\u00f3m t\u1eaft v\u1ec1 S\/Key<\/p>\n<p>S\/Key l\u00e0 h\u1ec7 th\u1ed1ng m\u1eadt kh\u1ea9u d\u00f9ng m\u1ed9t l\u1ea7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c th\u1ef1c ng\u01b0\u1eddi d\u00f9ng, cung c\u1ea5p b\u1ea3o m\u1eadt b\u1ed5 sung ch\u1ed1ng l\u1ea1i c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng l\u1eb7p l\u1ea1i. B\u1eb1ng c\u00e1ch t\u1ea1o m\u1ed9t lo\u1ea1t m\u1eadt kh\u1ea9u m\u1ed9t l\u1ea7n t\u1eeb c\u1ee5m m\u1eadt kh\u1ea9u b\u00ed m\u1eadt, S\/Key \u0111\u1ea3m b\u1ea3o r\u1eb1ng m\u1eadt kh\u1ea9u b\u1ecb ch\u1eb7n kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c l\u1ea7n x\u00e1c th\u1ef1c ti\u1ebfp theo. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u h\u1ec7 th\u1ed1ng kh\u00e1c nhau trong \u0111\u00f3 b\u1ea3o m\u1eadt l\u00e0 \u01b0u ti\u00ean h\u00e0ng \u0111\u1ea7u, bao g\u1ed3m \u0111\u0103ng nh\u1eadp t\u1eeb xa, ng\u00e2n h\u00e0ng tr\u1ef1c tuy\u1ebfn, v.v.<\/p>\n<h2>L\u1ecbch s\u1eed ngu\u1ed3n g\u1ed1c c\u1ee7a S\/Key v\u00e0 l\u1ea7n \u0111\u1ea7u ti\u00ean nh\u1eafc \u0111\u1ebfn n\u00f3<\/h2>\n<p>S\/Key \u0111\u01b0\u1ee3c ph\u00e1t minh b\u1edfi Bellcore (nay l\u00e0 Telcordia Technologies) v\u00e0 \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 l\u1ea7n \u0111\u1ea7u ti\u00ean v\u00e0o n\u0103m 1988 b\u1edfi Phil Karn, Neil Haller v\u00e0 John Walden. Ban \u0111\u1ea7u n\u00f3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf nh\u01b0 m\u1ed9t s\u01a1 \u0111\u1ed3 x\u00e1c th\u1ef1c \u0111\u1ec3 b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i c\u00e1c m\u1ed1i \u0111e d\u1ecda b\u00ean ngo\u00e0i \u0111\u1ed1i v\u1edbi an ninh m\u1ea1ng. \u00dd t\u01b0\u1edfng ch\u00ednh l\u00e0 t\u1ea1o ra m\u1ed9t h\u1ec7 th\u1ed1ng kh\u00f4ng y\u00eau c\u1ea7u m\u00e1y ch\u1ee7 l\u01b0u tr\u1eef b\u1ea3n sao c\u1ee7a kh\u00f3a b\u00ed m\u1eadt, do \u0111\u00f3 gi\u1ea3m nguy c\u01a1 b\u1ecb \u0111\u00e1nh c\u1eafp kh\u00f3a.<\/p>\n<h2>Th\u00f4ng tin chi ti\u1ebft v\u1ec1 S\/Key<\/h2>\n<p>M\u1edf r\u1ed9ng ch\u1ee7 \u0111\u1ec1 S\/Key<\/p>\n<p>H\u1ec7 th\u1ed1ng x\u00e1c th\u1ef1c S\/Key s\u1eed d\u1ee5ng h\u00e0m to\u00e1n h\u1ecdc v\u00e0 c\u1ee5m m\u1eadt kh\u1ea9u b\u00ed m\u1eadt \u0111\u1ec3 t\u1ea1o m\u1ed9t lo\u1ea1t m\u1eadt kh\u1ea9u d\u00f9ng m\u1ed9t l\u1ea7n. Ng\u01b0\u1eddi d\u00f9ng ph\u1ea3i nh\u1eadp \u0111\u00fang m\u1eadt kh\u1ea9u ti\u1ebfp theo c\u1ee7a chu\u1ed7i cho m\u1ed7i l\u1ea7n x\u00e1c th\u1ef1c.<\/p>\n<h3>C\u00e1c th\u00e0nh ph\u1ea7n:<\/h3>\n<ol>\n<li><strong>C\u1ee5m m\u1eadt kh\u1ea9u b\u00ed m\u1eadt:<\/strong> Ch\u1ec9 \u0111\u01b0\u1ee3c ng\u01b0\u1eddi d\u00f9ng bi\u1ebft \u0111\u1ebfn.<\/li>\n<li><strong>M\u1eadt kh\u1ea9u d\u00f9ng m\u1ed9t l\u1ea7n (OTP):<\/strong> \u0110\u01b0\u1ee3c t\u1ea1o t\u1eeb c\u1ee5m m\u1eadt kh\u1ea9u.<\/li>\n<li><strong>M\u00e1y ch\u1ee7 x\u00e1c th\u1ef1c:<\/strong> X\u00e1c th\u1ef1c OTP.<\/li>\n<\/ol>\n<h3>B\u1ea3o v\u1ec7:<\/h3>\n<ul>\n<li><strong>Ph\u00e1t l\u1ea1i B\u1ea3o v\u1ec7 t\u1ea5n c\u00f4ng:<\/strong> V\u00ec m\u1ed7i m\u1eadt kh\u1ea9u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng m\u1ed9t l\u1ea7n n\u00ean vi\u1ec7c l\u1ea5y \u0111\u01b0\u1ee3c m\u1eadt kh\u1ea9u s\u1ebd kh\u00f4ng cho ph\u00e9p truy c\u1eadp tr\u00e1i ph\u00e9p trong t\u01b0\u01a1ng lai.<\/li>\n<li><strong>Gi\u1ea3m r\u1ee7i ro m\u00e1y ch\u1ee7:<\/strong> M\u00e1y ch\u1ee7 kh\u00f4ng l\u01b0u tr\u1eef b\u1ea3n sao c\u1ee7a kh\u00f3a b\u00ed m\u1eadt.<\/li>\n<\/ul>\n<h2>C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a S\/Key<\/h2>\n<p>S\/Key ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o<\/p>\n<ol>\n<li><strong>Kh\u1edfi t\u1ea1o:<\/strong> Ng\u01b0\u1eddi d\u00f9ng ch\u1ecdn m\u1ed9t c\u1ee5m m\u1eadt kh\u1ea9u.<\/li>\n<li><strong>T\u1ea1o OTP:<\/strong> M\u1ed9t lo\u1ea1t OTP \u0111\u01b0\u1ee3c t\u1ea1o t\u1eeb c\u1ee5m m\u1eadt kh\u1ea9u b\u1eb1ng h\u00e0m b\u0103m m\u1ed9t chi\u1ec1u.<\/li>\n<li><strong>Qu\u00e1 tr\u00ecnh x\u00e1c th\u1ef1c:<\/strong> Ng\u01b0\u1eddi d\u00f9ng g\u1eedi OTP ch\u01b0a s\u1eed d\u1ee5ng ti\u1ebfp theo.<\/li>\n<li><strong>Th\u1ea9m \u0111\u1ecbnh:<\/strong> M\u00e1y ch\u1ee7 x\u00e1c th\u1ef1c OTP b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng t\u00ednh to\u00e1n c\u1ee7a ch\u00ednh n\u00f3 v\u00e0 cho ph\u00e9p ho\u1eb7c t\u1eeb ch\u1ed1i quy\u1ec1n truy c\u1eadp t\u01b0\u01a1ng \u1ee9ng.<\/li>\n<\/ol>\n<h2>Ph\u00e2n t\u00edch c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a S\/Key<\/h2>\n<ul>\n<li><strong>S\u1eed d\u1ee5ng m\u1ed9t l\u1ea7n:<\/strong> M\u1ed7i m\u1eadt kh\u1ea9u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng m\u1ed9t l\u1ea7n.<\/li>\n<li><strong>S\u1ef1 \u0111\u01a1n gi\u1ea3n:<\/strong> N\u00f3 t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u01a1n gi\u1ea3n \u0111\u1ec3 th\u1ef1c hi\u1ec7n v\u00e0 s\u1eed d\u1ee5ng.<\/li>\n<li><strong>\u0110\u1ed9c l\u1eadp v\u1edbi \u0111\u1ed3ng h\u1ed3:<\/strong> Kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1c h\u1ec7 th\u1ed1ng OTP kh\u00e1c, S\/Key kh\u00f4ng d\u1ef1a v\u00e0o th\u1eddi gian \u0111\u1ed3ng b\u1ed9 gi\u1eefa m\u00e1y kh\u00e1ch v\u00e0 m\u00e1y ch\u1ee7.<\/li>\n<li><strong>L\u1ed7 h\u1ed5ng ti\u1ec1m \u1ea9n:<\/strong> N\u1ebfu s\u1ed1 th\u1ee9 t\u1ef1 ho\u1eb7c c\u1ee5m m\u1eadt kh\u1ea9u b\u00ed m\u1eadt b\u1ecb x\u00e2m ph\u1ea1m, to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 g\u1eb7p r\u1ee7i ro.<\/li>\n<\/ul>\n<h2>C\u00e1c lo\u1ea1i S\/Key<\/h2>\n<p>C\u00e1c tri\u1ec3n khai kh\u00e1c nhau \u0111\u00e3 xu\u1ea5t hi\u1ec7n. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng m\u1ed9t s\u1ed1 bi\u1ebfn th\u1ec3:<\/p>\n<table>\n<thead>\n<tr>\n<th><strong>Ki\u1ec3u<\/strong><\/th>\n<th><strong>Thu\u1eadt to\u00e1n<\/strong><\/th>\n<th><strong>C\u00e1ch s\u1eed d\u1ee5ng<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>S\/Key c\u1ed5 \u0111i\u1ec3n<\/td>\n<td>H\u00e0m b\u0103m d\u1ef1a tr\u00ean MD4<\/td>\n<td>M\u1ee5c \u0111\u00edch chung<\/td>\n<\/tr>\n<tr>\n<td>OPIE<\/td>\n<td>H\u00e0m b\u0103m d\u1ef1a tr\u00ean MD5<\/td>\n<td>H\u1ec7 th\u1ed1ng UNIX<\/td>\n<\/tr>\n<tr>\n<td>OTP di \u0111\u1ed9ng<\/td>\n<td>Thu\u1eadt to\u00e1n t\u00f9y ch\u1ec9nh<\/td>\n<td>Thi\u00eat bi\u0323 di \u0111\u00f4\u0323ng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>C\u00e1ch s\u1eed d\u1ee5ng S\/Key, v\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p<\/h2>\n<h3>C\u00e1ch s\u1eed d\u1ee5ng:<\/h3>\n<ul>\n<li><strong>Truy c\u1eadp t\u1eeb xa<\/strong><\/li>\n<li><strong>Giao d\u1ecbch tr\u1ef1c tuy\u1ebfn<\/strong><\/li>\n<\/ul>\n<h3>C\u00e1c v\u1ea5n \u0111\u1ec1:<\/h3>\n<ul>\n<li><strong>C\u1ee5m m\u1eadt kh\u1ea9u b\u1ecb m\u1ea5t:<\/strong> N\u1ebfu ng\u01b0\u1eddi d\u00f9ng m\u1ea5t c\u1ee5m m\u1eadt kh\u1ea9u th\u00ec c\u1ea7n ph\u1ea3i th\u1ef1c hi\u1ec7n quy tr\u00ecnh \u0111\u1eb7t l\u1ea1i.<\/li>\n<li><strong>Ng\u01b0\u1eddi \u0111\u00e0n \u00f4ng gi\u1eefa cu\u1ed9c chi\u1ebfn:<\/strong> V\u1eabn d\u1ec5 b\u1ecb t\u1ea5n c\u00f4ng ki\u1ec3u n\u00e0y.<\/li>\n<\/ul>\n<h3>C\u00e1c gi\u1ea3i ph\u00e1p:<\/h3>\n<ul>\n<li><strong>Giao th\u1ee9c truy\u1ec1n an to\u00e0n:<\/strong> \u0110\u1ec3 \u0111\u1ec1 ph\u00f2ng b\u1ecb ch\u1eb7n.<\/li>\n<li><strong>X\u00e1c th\u1ef1c \u0111a y\u1ebfu t\u1ed1:<\/strong> \u0110\u1ec3 th\u00eam m\u1ed9t l\u1edbp b\u1ea3o m\u1eadt b\u1ed5 sung.<\/li>\n<\/ul>\n<h2>\u0110\u1eb7c \u0111i\u1ec3m ch\u00ednh v\u00e0 nh\u1eefng so s\u00e1nh kh\u00e1c<\/h2>\n<p>\u0110\u00e2y l\u00e0 b\u1ea3ng so s\u00e1nh S\/Key v\u1edbi c\u00e1c ph\u01b0\u01a1ng th\u1ee9c x\u00e1c th\u1ef1c t\u01b0\u01a1ng t\u1ef1:<\/p>\n<table>\n<thead>\n<tr>\n<th><strong>Ph\u01b0\u01a1ng ph\u00e1p<\/strong><\/th>\n<th><strong>B\u1ea3o v\u1ec7<\/strong><\/th>\n<th><strong>D\u1ec5 s\u1eed d\u1ee5ng<\/strong><\/th>\n<th><strong>Ph\u1ee5 thu\u1ed9c v\u00e0o th\u1eddi gian<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>S\/Kh\u00f3a<\/td>\n<td>Cao<\/td>\n<td>V\u1eeba ph\u1ea3i<\/td>\n<td>KH\u00d4NG<\/td>\n<\/tr>\n<tr>\n<td>TOTP<\/td>\n<td>Cao<\/td>\n<td>Cao<\/td>\n<td>\u0110\u00fang<\/td>\n<\/tr>\n<tr>\n<td>N\u00d3NG P<\/td>\n<td>Cao<\/td>\n<td>Cao<\/td>\n<td>KH\u00d4NG<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 c\u1ee7a t\u01b0\u01a1ng lai li\u00ean quan \u0111\u1ebfn S\/Key<\/h2>\n<p>Nh\u1eefng ph\u00e1t tri\u1ec3n trong t\u01b0\u01a1ng lai c\u00f3 th\u1ec3 bao g\u1ed3m vi\u1ec7c t\u00edch h\u1ee3p d\u1eef li\u1ec7u sinh tr\u1eafc h\u1ecdc, t\u0103ng c\u01b0\u1eddng c\u00e1c thu\u1eadt to\u00e1n t\u1ea1o OTP v\u00e0 tri\u1ec3n khai AI \u0111\u1ec3 x\u00e1c th\u1ef1c li\u00ean t\u1ee5c.<\/p>\n<h2>C\u00e1ch s\u1eed d\u1ee5ng ho\u1eb7c li\u00ean k\u1ebft m\u00e1y ch\u1ee7 proxy v\u1edbi S\/Key<\/h2>\n<p>C\u00e1c m\u00e1y ch\u1ee7 proxy, gi\u1ed1ng nh\u01b0 c\u00e1c m\u00e1y ch\u1ee7 do OneProxy cung c\u1ea5p, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh \u0111\u1ec3 y\u00eau c\u1ea7u x\u00e1c th\u1ef1c S\/Key. \u0110i\u1ec1u n\u00e0y b\u1ed5 sung th\u00eam m\u1ed9t l\u1edbp b\u1ea3o m\u1eadt, \u0111\u1ea3m b\u1ea3o r\u1eb1ng ch\u1ec9 nh\u1eefng ng\u01b0\u1eddi d\u00f9ng \u0111\u01b0\u1ee3c \u1ee7y quy\u1ec1n m\u1edbi c\u00f3 th\u1ec3 truy c\u1eadp m\u00e1y ch\u1ee7 proxy.<\/p>\n<h2>Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n<ul>\n<li><a href=\"https:\/\/tools.ietf.org\/html\/rfc1760\" target=\"_new\" rel=\"noopener nofollow\">RFC 1760 \u2013 H\u1ec7 th\u1ed1ng m\u1eadt kh\u1ea9u d\u00f9ng m\u1ed9t l\u1ea7n S\/Key<\/a><\/li>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/OPIE_Authentication_System\" target=\"_new\" rel=\"noopener nofollow\">OPIE M\u1eadt kh\u1ea9u m\u1ed9t l\u1ea7n trong m\u1ecdi th\u1ee9<\/a><\/li>\n<li><a href=\"https:\/\/motp.sourceforge.net\/\" target=\"_new\" rel=\"noopener nofollow\">Trang d\u1ef1 \u00e1n Mobile-OTP<\/a><\/li>\n<\/ul>\n<p>C\u00e1c t\u00e0i nguy\u00ean tr\u00ean cung c\u1ea5p th\u00f4ng tin chi ti\u1ebft to\u00e0n di\u1ec7n v\u1ec1 h\u1ec7 th\u1ed1ng S\/Key, c\u00e1c \u1ee9ng d\u1ee5ng, bi\u1ebfn th\u1ec3 v\u00e0 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a n\u00f3.<\/p>","protected":false},"featured_media":478812,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-478811","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>S\/Key Authentication System<\/mark>","faq_items":[{"question":"What is S\/Key and why is it important?","answer":"<p>S\/Key is a one-time password system used for user authentication that provides additional security against replay attacks. By generating a series of one-time passwords from a secret passphrase, S\/Key ensures that an intercepted password can't be used again, thus offering enhanced security for various systems such as remote logins and online banking.<\/p>"},{"question":"What is the history of the S\/Key system?","answer":"<p>S\/Key was invented by Bellcore in 1988 by Phil Karn, Neil Haller, and John Walden. It was initially designed as an authentication scheme to protect against network security threats, particularly focusing on eliminating the server-side storage of secret keys to reduce the risk of key theft.<\/p>"},{"question":"How does the S\/Key system work?","answer":"<p>The S\/Key system works by utilizing a mathematical function and a secret passphrase to generate a series of one-time passwords. The user must enter the correct next password from the series for every authentication attempt. The server validates the one-time password without storing the secret keys, thereby enhancing security.<\/p>"},{"question":"What are the key features of S\/Key?","answer":"<p>The key features of S\/Key include its one-time use of each password, its simplicity, independence from synchronized time between client and server, and its high security against replay attacks. However, it can be vulnerable if the sequence number or the secret passphrase is compromised.<\/p>"},{"question":"What types of S\/Key exist?","answer":"<p>Different types of S\/Key include Classic S\/Key, which uses an MD4-based hash; OPIE, which uses an MD5-based hash and is commonly used in UNIX systems; and Mobile-OTP, which uses a custom algorithm and is designed for mobile devices.<\/p>"},{"question":"What are the common ways to use S\/Key and potential problems?","answer":"<p>S\/Key is commonly used for remote access and online transactions. Some potential problems include the loss of a passphrase, requiring a reset, and susceptibility to man-in-the-middle attacks. Solutions include using secure transmission protocols and implementing multi-factor authentication.<\/p>"},{"question":"How does S\/Key compare to other similar authentication methods?","answer":"<p>S\/Key is comparable to other methods like TOTP and HOTP in terms of security. While it's moderate in ease of use, unlike TOTP, it doesn't depend on synchronized time between the client and server.<\/p>"},{"question":"What are the future prospects for S\/Key technology?","answer":"<p>Future developments related to S\/Key might include the integration of biometric data, enhancement of algorithms for one-time password generation, and the use of AI for continuous authentication.<\/p>"},{"question":"How can proxy servers be used or associated with S\/Key?","answer":"<p>Proxy servers, such as those provided by OneProxy, can be configured to require S\/Key authentication. This adds an extra layer of security, ensuring that only authorized users can access the proxy server.<\/p>"},{"question":"Where can I find more information about S\/Key?","answer":"<p>You can find more information about S\/Key by exploring resources such as RFC 1760 - The S\/Key One-Time Password System, the OPIE Authentication System Wikipedia page, and the Mobile-OTP Project Page. Links to these resources are provided in the original article.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/478811","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/478811\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/478812"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=478811"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}