{"id":1656,"date":"2022-02-24T06:48:07","date_gmt":"2022-02-24T06:48:07","guid":{"rendered":"https:\/\/topviecit.vn\/blog\/?p=1656"},"modified":"2022-02-24T06:48:07","modified_gmt":"2022-02-24T06:48:07","slug":"jwt-la-gi","status":"publish","type":"post","link":"https:\/\/topviecit.vn\/blog\/jwt-la-gi\/","title":{"rendered":"JWT L\u00e0 G\u00ec? T\u00ecm Hi\u1ec3u V\u1ec1 C\u00e1c Th\u00e0nh Ph\u1ea7n C\u1ee7a JWT"},"content":{"rendered":"\n<p>Trong th\u1ebf gi\u1edbi hi\u1ec7n \u0111\u1ea1i, \u0111\u1eb7c bi\u1ec7t l\u00e0 s\u1ef1 ph\u00e1t tri\u1ec3n m\u1ea1nh m\u1ebd c\u1ee7a l\u0129nh v\u1ef1c c\u00f4ng ngh\u1ec7 d\u1eabn \u0111\u1ebfn kh\u00e1i ni\u1ec7m JWT c\u00e0ng tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn h\u01a1n bao gi\u1edd h\u1ebft. Tuy nhi\u00ean kh\u00f4ng ph\u1ea3i ai c\u0169ng hi\u1ec3u <strong>JWT l\u00e0 g\u00ec,<\/strong> ch\u00fang g\u1ed3m nh\u1eefng th\u00e0nh ph\u1ea7n n\u00e0o v\u00e0 ho\u1ea1t \u0111\u1ed9ng ra sao. N\u1ebfu b\u1ea1n \u0111ang v\u01b0\u1edbng m\u1eafc nh\u1eefng c\u00e2u h\u1ecfi tr\u00ean th\u00ec \u0111\u1eebng b\u1ecf qua nh\u1eefng n\u1ed9i dung trong b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y c\u00f9ng <strong><a href=\"https:\/\/topviecit.vn\/\">topviecit.vn<\/a><\/strong> nh\u00e9.\u00a0<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_63 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/topviecit.vn\/blog\/jwt-la-gi\/#JWT_la_gi\" title=\"JWT l\u00e0 g\u00ec?\">JWT l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/topviecit.vn\/blog\/jwt-la-gi\/#Uu_diem_cua_JWT\" title=\"\u01afu \u0111i\u1ec3m c\u1ee7a JWT&nbsp;\">\u01afu \u0111i\u1ec3m c\u1ee7a JWT&nbsp;<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/topviecit.vn\/blog\/jwt-la-gi\/#Cac_thanh_phan_chinh_cua_JWT\" title=\"C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a JWT\">C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a JWT<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/topviecit.vn\/blog\/jwt-la-gi\/#JWT_duoc_su_dung_khi_nao\" title=\"JWT \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi n\u00e0o?\">JWT \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi n\u00e0o?<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"JWT_la_gi\"><\/span>JWT l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u0110\u1ec3 hi\u1ec3u \u0111\u00fang v\u1ec1 JWT, tr\u01b0\u1edbc h\u1ebft b\u1ea1n c\u1ea7n bi\u1ebft<strong> JWT l\u00e0 g\u00ec?<\/strong> JWT&nbsp; l\u00e0 thu\u1eadt ng\u1eef vi\u1ebft t\u1eaft c\u1ee7a JSON Web Tokens, \u0111\u00e2y l\u00e0 m\u1ed9t ti\u00eau chu\u1ea9n m\u1edf RFC 7519, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t ph\u01b0\u01a1ng ti\u1ec7n \u0111\u1ea1i di\u1ec7n nh\u1ecf g\u1ecdn. Ch\u00fang th\u1ef1c hi\u1ec7n nhi\u1ec7m v\u1ee5 truy\u1ec1n \u0111\u1ea1t th\u00f4ng tin gi\u1eefa server v\u00e0 client th\u00f4ng qua m\u1ed9t chu\u1ed7i c\u00e1c JSON.<\/p>\n\n\n\n<p>\u01afu \u0111i\u1ec3m l\u1edbn nh\u1ea5t \u0111\u00f3 l\u00e0 th\u00f4ng tin \u0111\u01b0\u1ee3c truy\u1ec1n qua JWT c\u00f3 t\u00ednh b\u1ea3o m\u1eadt v\u00e0 \u0111\u1ed9 tin t\u01b0\u1edfng cao nh\u1edd v\u00e0o ch\u1eef k\u00fd \u0111i\u1ec7n t\u1eed. Ch\u1eef k\u00fd \u0111i\u1ec7n t\u1eed s\u1eed d\u1ee5ng c\u00e1c kh\u00f3a c\u00f4ng khai ho\u1eb7c ri\u00eang t\u01b0 s\u1eed d\u1ee5ng RSA, ECDSA \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng d\u1ef1a tr\u00ean thu\u1eadt to\u00e1n HMAC.<\/p>\n\n\n\n<p>>>>Xem th\u00eam: <a href=\"https:\/\/topviecit.vn\/blog\/restful-api-la-gi\/\">RESTful API L\u00e0 G\u00ec? Ki\u1ebfn Th\u1ee9c Cho Ng\u01b0\u1eddi M\u1edbi Nh\u1eadp M\u00f4n<\/a><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-30.png\" alt=\"JWT l\u00e0 g\u00ec\" class=\"wp-image-1657\" srcset=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-30.png 800w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-30-640x400.png 640w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-30-768x480.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption><em><em>JWT l\u00e0 g\u00ec<\/em><\/em><\/figcaption><\/figure><\/div>\n\n\n\n<p>Chi\u1ebfn l\u01b0\u1ee3c l\u1edbn nh\u1ea5t c\u1ee7a c\u00e1c nh\u00e0 s\u00e1ng t\u1ea1o n\u00ean JWT ch\u00ednh l\u00e0 t\u1eadp trung v\u00e0o c\u00e1c signed token. C\u00e1c signed token n\u00e0y ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 x\u00e1c minh t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a quy\u1ec1n s\u1edf s\u1edf h\u1eefu b\u1ea3n th\u00e2n v\u00e0 b\u1ea3o m\u1eadt token kh\u1ecfi m\u1ed9t s\u1ed1 b\u00ean kh\u00e1c. Khi signed token s\u1eed d\u1ee5ng c\u1eb7p kh\u00f3a c\u00f4ng khai ho\u1eb7c ri\u00eang t\u01b0 c\u0169ng c\u00f3 ngh\u0129a l\u00e0 b\u00ean n\u1eafm gi\u1eef c\u1ea3 2 kh\u00f3a l\u00e0 b\u00ean \u0111\u00e3 ho\u00e0n t\u1ea5t qu\u00e1 tr\u00ecnh \u0111\u0103ng k\u00fd signed token.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Uu_diem_cua_JWT\"><\/span>\u01afu \u0111i\u1ec3m c\u1ee7a JWT&nbsp;<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Ngo\u00e0i kh\u00e1i ni\u1ec7m<strong> JWT l\u00e0 g\u00ec, <\/strong>b\u1ea1n c\u0169ng n\u00ean n\u1eafm \u0111\u01b0\u1ee3c nh\u1eefng \u01b0u \u0111i\u1ec3m c\u1ee7a JWT \u0111\u1ec3 c\u00f3 th\u1ec3 l\u00e0m vi\u1ec7c v\u1edbi ch\u00fang m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 h\u01a1n. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 \u01b0u \u0111i\u1ec3m ch\u00ednh c\u1ee7a JWT ph\u1ed5 bi\u1ebfn nh\u1ea5t:&nbsp;<\/p>\n\n\n\n<p><strong>Nh\u1ecf g\u1ecdn h\u01a1n<\/strong><\/p>\n\n\n\n<p>JWT \u0111\u01b0\u1ee3c cho l\u00e0 ng\u1eafn g\u1ecdn h\u01a1n XML. B\u1edfi v\u1eady, khi m\u00e3 h\u00f3a, token JWT c\u0169ng s\u1ebd ng\u1eafn h\u01a1n SAML. Ch\u00ednh \u01b0u \u0111i\u1ec3m n\u00e0y \u0111\u00e3 gi\u00fap cho JWT v\u01b0\u1ee3t qua nh\u1eefng \u201c\u0111\u1ed1i th\u1ee7\u201d kh\u00e1c v\u00e0 tr\u1edf th\u00e0nh m\u1ed9t l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p h\u01a1n trong HTML v\u00e0 m\u00f4i tr\u01b0\u1eddng HTTP.<\/p>\n\n\n\n<p><strong>An to\u00e0n h\u01a1n<\/strong><\/p>\n\n\n\n<p>\u0110\u00e2y c\u0169ng l\u00e0 \u01b0u \u0111i\u1ec3m \u0111\u01b0\u1ee3c nhi\u1ec1u ng\u01b0\u1eddi \u0111\u00e1nh gi\u00e1 cao khi quy\u1ebft \u0111\u1ecbnh l\u00e0m vi\u1ec7c v\u1edbi JWT. B\u1edfi JWT s\u1eed d\u1ee5ng c\u1eb7p kh\u00f3a c\u00f4ng khai ho\u1eb7c ri\u00eang t\u01b0 d\u01b0\u1edbi d\u1ea1ng ch\u1ee9ng ch\u1ec9 X.509 \u0111\u1ec3 k\u00fd. Ngo\u00e0i ra, JWT c\u0169ng ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c k\u00fd \u0111\u1ed1i x\u1ee9ng b\u1eb1ng m\u1ed9t m\u00e3 b\u00ed m\u1eadt \u0111\u01b0\u1ee3c chia s\u1ebb s\u1eed d\u1ee5ng thu\u1eadt to\u00e1n HMAC.<\/p>\n\n\n\n<p>SAML c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c c\u1eb7p kh\u00f3a c\u00f4ng khai ho\u1eb7c ri\u00eang t\u01b0 gi\u1ed1ng nh\u01b0 JWT. Tuy nhi\u00ean, tr\u00ean th\u1ef1c t\u1ebf ch\u1eef k\u00fd s\u1ed1 b\u1eb1ng XML l\u1ea1i c\u00f3 nhi\u1ec1u l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt r\u1ea5t, kh\u00f4ng k\u1ec3 ph\u01b0\u01a1ng ph\u00e1p th\u1ef1c hi\u1ec7n c\u0169ng kh\u00f3 kh\u0103n h\u01a1n JWT r\u1ea5t nhi\u1ec1u.<\/p>\n\n\n\n<p><strong>Ph\u1ed5 bi\u1ebfn h\u01a1n<\/strong><\/p>\n\n\n\n<p>Trong l\u1eadp tr\u00ecnh, b\u1ed9 ph\u00e2n t\u00edch c\u00fa ph\u00e1p JSON ph\u1ed5 bi\u1ebfn v\u00ec ch\u00fang \u00e1nh x\u1ea1 tr\u1ef1c ti\u1ebfp \u0111\u1ebfn c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng. Ng\u01b0\u1ee3c l\u1ea1i, XML l\u1ea1i kh\u00f4ng c\u00f3 \u00e1nh x\u1ea1 t\u00e0i li\u1ec7u m\u1ed9t c\u00e1ch t\u1ef1 nhi\u00ean nh\u01b0 JWT.<\/p>\n\n\n\n<p>\u0110\u00e2y l\u00e0 nguy\u00ean nh\u00e2n gi\u00fap b\u1ea1n c\u00f3 th\u1ec3 l\u00e0m vi\u1ec7c d\u1ec5 d\u00e0ng h\u01a1n v\u1edbi JWT so v\u1edbi c\u00e1c x\u00e1c nh\u1eadn SAML.<\/p>\n\n\n\n<p><strong>D\u1ec5 x\u1eed l\u00fd h\u01a1n<\/strong><\/p>\n\n\n\n<p>\u0110\u00e2y c\u0169ng l\u00e0 m\u1ed9t \u01b0u \u0111i\u1ec3m quan tr\u1ecdng c\u1ee7a JWT. Do \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf quy m\u00f4 internet n\u00ean JWT d\u1ec5 d\u00e0ng \u0111\u1ec3 x\u1eed l\u00fd tr\u00ean h\u1ea7u h\u1ebft c\u00e1c thi\u1ebft b\u1ecb c\u1ee7a ng\u01b0\u1eddi d\u00f9ng, nh\u1ea5t l\u00e0 c\u00e1c thi\u1ebft b\u1ecb di \u0111\u1ed9ng.<\/p>\n\n\n\n<p>>>>Xem th\u00eam: <a href=\"https:\/\/topviecit.vn\/blog\/debugger-la-gi\/\">Debugger l\u00e0 g\u00ec? T\u1ea5t c\u1ea3 nh\u1eefng \u0111i\u1ec1u m\u00e0 b\u1ea1n c\u1ea7n bi\u1ebft v\u1ec1 Debug<\/a><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-31.png\" alt=\"\u01afu \u0111i\u1ec3m c\u1ee7a JWT\" class=\"wp-image-1658\" srcset=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-31.png 800w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-31-640x400.png 640w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-31-768x480.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption><em>\u01afu \u0111i\u1ec3m c\u1ee7a JWT<\/em><\/figcaption><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cac_thanh_phan_chinh_cua_JWT\"><\/span>C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a JWT<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>M\u1ed9t JWT theo ti\u00eau chu\u1ea9n s\u1ebd \u0111\u01b0\u1ee3c c\u1ea5u th\u00e0nh t\u1eeb 3 th\u00e0nh ph\u1ea7n ch\u00ednh, ch\u00fang ph\u00e2n t\u00e1ch v\u1edbi nhau b\u1edfi d\u1ea5u ch\u1ea5m ( . ), bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Header<\/li><li>Payload<\/li><li>Signature<\/li><\/ul>\n\n\n\n<p>C\u1ee5 th\u1ec3:&nbsp;<\/p>\n\n\n\n<p><strong>Header<\/strong><\/p>\n\n\n\n<p>M\u1ed7i 1 Header c\u1ee7a JWT th\u01b0\u1eddng c\u00f3 2 ph\u1ea7n:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Thu\u1eadt to\u00e1n m\u00e3 h\u00f3a \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. V\u00ed d\u1ee5 nh\u01b0: HS256, HS384, HS512, PS256, PS 384, PS512, RS256, RS384, RS512, ES256, ES256K, ES384, ES512 v\u00e0 EdDSA.<\/li><li>JWT.<\/li><\/ul>\n\n\n\n<p><strong>Payload&nbsp;<\/strong><\/p>\n\n\n\n<p>Th\u00e0nh ph\u1ea7n n\u00e0y ch\u1ee9a c\u00e1c th\u00f4ng tin v\u1ec1 quy\u1ec1n s\u1edf h\u1eefu m\u1ed9t th\u1ef1c th\u1ec3 v\u00e0 c\u00e1c d\u1eef li\u1ec7u b\u1ed5 sung. Ch\u00fang g\u1ed3m 3 lo\u1ea1i b\u1ea3o m\u1eadt x\u00e1c th\u1ef1c ch\u00ednh \u0111\u00f3 l\u00e0: registered, public v\u00e0 private claims.<\/p>\n\n\n\n<p><strong>Signature&nbsp;<\/strong><\/p>\n\n\n\n<p>Th\u00e0nh ph\u1ea7n cu\u1ed1i c\u00f9ng nh\u01b0ng c\u0169ng r\u1ea5t quan tr\u1ecdng c\u1ee7a JWT l\u00e0 Signature (ch\u1eef k\u00fd).&nbsp; \u0110\u1ec3 t\u1ea1o \u0111\u01b0\u1ee3c m\u1ed9t ch\u1eef k\u00fd, b\u1ea1n s\u1ebd c\u1ea7n ph\u1ea3i m\u00e3 h\u00f3a header, payload, m\u00e3 kh\u00f3a b\u00ed m\u1eadt secret v\u00e0 thu\u1eadt to\u00e1n.&nbsp;<\/p>\n\n\n\n<p>Signature \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u1eb1m x\u00e1c minh r\u1eb1ng tin nh\u1eafn \u0111\u01b0\u1ee3c g\u1eedi \u0111\u1ebfn kh\u00f4ng b\u1ecb thay \u0111\u1ed5i. V\u1edbi tr\u01b0\u1eddng h\u1ee3p b\u1ea1n s\u1eed d\u1ee5ng private key cho tokens signed, Signature c\u0169ng ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 x\u00e1c nh\u1eadn r\u1eb1ng ng\u01b0\u1eddi g\u1eedi l\u00e0 ng\u01b0\u1eddi t\u1ea1o JWT.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"JWT_duoc_su_dung_khi_nao\"><\/span>JWT \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi n\u00e0o?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>JWT c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c d\u00f9ng cho r\u1ea5t nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p kh\u00e1c nhau, trong \u0111\u00f3 ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>U\u1ef7 quy\u1ec1n \u2013 Authorization<\/li><li>Truy\u1ec1n \u0111\u1ea1t v\u00e0 b\u1ea3o v\u1ec7 to\u00e0n v\u1eb9n th\u00f4ng tin \u2013 Information Exchange<\/li><\/ul>\n\n\n\n<p><strong>U\u1ef7 quy\u1ec1n \u2013 Authorization<\/strong><\/p>\n\n\n\n<p>JWT \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng nhi\u1ec1u nh\u1ea5t cho \u1ee6y quy\u1ec1n.&nbsp;<\/p>\n\n\n\n<p>Khi ng\u01b0\u1eddi d\u00f9ng \u0111\u0103ng nh\u1eadp th\u00e0nh c\u00f4ng b\u1eb1ng th\u00f4ng tin c\u00e1 nh\u00e2n, \u1ee9ng d\u1ee5ng c\u00f3 th\u1ec3 y\u00eau c\u1ea7u truy c\u1eadp v\u00e0o m\u1ed9t s\u1ed1 t\u00e0i nguy\u00ean, d\u1ecbch v\u1ee5,\u2026. M\u1ed7i l\u1ea7n th\u1ef1c hi\u1ec7n, ch\u00fang s\u1ebd ph\u1ea3i cung c\u1ea5p 1 Access Token JWT. Khi \u0111\u00f3,, h\u00ecnh th\u1ee9c \u0111\u0103ng nh\u1eadp c\u1ee7a b\u1ea1n s\u1ebd c\u1ea7n \u0111\u1ebfn JWT b\u1edfi v\u00ec JWT c\u00f3 chi ph\u00ed \u0111\u1ecbnh d\u1ea1ng nh\u1ecf v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00f9ng l\u00fac tr\u00ean nhi\u1ec1u t\u00ean mi\u1ec1n kh\u00e1c nhau.<\/p>\n\n\n\n<p>>>>Xem th\u00eam: <a href=\"https:\/\/topviecit.vn\/blog\/kafka-la-gi\/\">Kafka L\u00e0 G\u00ec? Nh\u1eefng \u0110i\u1ec1u B\u1ea1n C\u1ea7n Bi\u1ebft V\u1ec1 Kafka<\/a><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-32.png\" alt=\"JWT \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi n\u00e0o?\" class=\"wp-image-1659\" srcset=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-32.png 800w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-32-640x400.png 640w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-32-768x480.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption><em>JWT \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi n\u00e0o?<\/em><\/figcaption><\/figure><\/div>\n\n\n\n<p><strong>Truy\u1ec1n \u0111\u1ea1t v\u00e0 b\u1ea3o v\u1ec7 to\u00e0n v\u1eb9n th\u00f4ng tin \u2013 Information Exchange<\/strong><\/p>\n\n\n\n<p>JWT l\u00e0 m\u1ed9t s\u1ef1 l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p \u0111\u1ec3 truy\u1ec1n \u0111\u1ea1t v\u00e0 b\u1ea3o v\u1ec7 s\u1ef1 to\u00e0n v\u1eb9n c\u1ee7a th\u00f4ng tin do:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>JWT s\u1eed d\u1ee5ng c\u1eb7p kh\u00f3a c\u00f4ng khai ho\u1eb7c ri\u00eang t\u01b0, nh\u1edd v\u1eady m\u00e0 b\u1ea1n ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 ki\u1ec3m tra, x\u00e1c nh\u1eadn ng\u01b0\u1eddi g\u1eedi \u0111\u00fang nh\u01b0 nh\u1eefng g\u00ec h\u1ecd n\u00f3i.<\/li><li>Signature \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng header v\u00e0 payload, do \u0111\u00f3 b\u1ea1n c\u00f3 th\u1ec3 x\u00e1c th\u1ef1c r\u1eb1ng n\u1ed9i dung kh\u00f4ng b\u1ecb gi\u1ea3 m\u1ea1o.<\/li><\/ul>\n\n\n\n<p>V\u1eeba r\u1ed3i l\u00e0 nh\u1eefng th\u00f4ng tin c\u01a1 b\u1ea3n v\u1ec1<strong> JWT l\u00e0 g\u00ec,<\/strong> nh\u1eefng \u1ee9ng d\u1ee5ng, \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh c\u1ee7a JWT. Hy v\u1ecdng b\u1ea1n c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng nh\u1eefng ki\u1ebfn th\u1ee9c tr\u00ean \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00f4ng vi\u1ec7c c\u1ee7a m\u00ecnh m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.\u00a0<\/p>\n\n\n\n<p>>>>Xem th\u00eam: <a href=\"https:\/\/topviecit.vn\/blog\/hoc-python-de-lam-gi\/\">H\u1ecdc Python \u0110\u1ec3 L\u00e0m G\u00ec? T\u1ea1i Sao N\u00ean H\u1ecdc Python?<\/a><\/p>\n\n\n\n<p class=\"has-text-align-right\"><em>H\u00ecnh \u1ea3nh: S\u01b0u t\u1ea7m<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trong th\u1ebf gi\u1edbi hi\u1ec7n \u0111\u1ea1i, \u0111\u1eb7c bi\u1ec7t l\u00e0 s\u1ef1 ph\u00e1t tri\u1ec3n m\u1ea1nh m\u1ebd c\u1ee7a l\u0129nh v\u1ef1c c\u00f4ng ngh\u1ec7 d\u1eabn \u0111\u1ebfn kh\u00e1i ni\u1ec7m JWT c\u00e0ng tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn h\u01a1n bao gi\u1edd h\u1ebft. Tuy nhi\u00ean kh\u00f4ng ph\u1ea3i ai c\u0169ng hi\u1ec3u JWT l\u00e0 g\u00ec, ch\u00fang g\u1ed3m nh\u1eefng th\u00e0nh ph\u1ea7n n\u00e0o v\u00e0 ho\u1ea1t \u0111\u1ed9ng ra sao. N\u1ebfu b\u1ea1n [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":1660,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"cybocfi_hide_featured_image":"","footnotes":""},"categories":[86],"tags":[401],"class_list":["post-1656","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-chia-se-kinh-nghiem","tag-jwt-la-gi"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>JWT L\u00e0 G\u00ec? T\u00ecm Hi\u1ec3u V\u1ec1 C\u00e1c Th\u00e0nh Ph\u1ea7n C\u1ee7a JWT<\/title>\n<meta name=\"description\" content=\"JWT l\u00e0 g\u00ec? JWT\u00a0 l\u00e0 thu\u1eadt ng\u1eef vi\u1ebft t\u1eaft c\u1ee7a JSON Web Tokens, \u0111\u00e2y l\u00e0 m\u1ed9t ti\u00eau chu\u1ea9n m\u1edf RFC 7519, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t ph\u01b0\u01a1ng ti\u1ec7n \u0111\u1ea1i di\u1ec7n nh\u1ecf g\u1ecdn.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/topviecit.vn\/blog\/jwt-la-gi\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"JWT L\u00e0 G\u00ec? T\u00ecm Hi\u1ec3u V\u1ec1 C\u00e1c Th\u00e0nh Ph\u1ea7n C\u1ee7a JWT\" \/>\n<meta property=\"og:description\" content=\"JWT l\u00e0 g\u00ec? JWT\u00a0 l\u00e0 thu\u1eadt ng\u1eef vi\u1ebft t\u1eaft c\u1ee7a JSON Web Tokens, \u0111\u00e2y l\u00e0 m\u1ed9t ti\u00eau chu\u1ea9n m\u1edf RFC 7519, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t ph\u01b0\u01a1ng ti\u1ec7n \u0111\u1ea1i di\u1ec7n nh\u1ecf g\u1ecdn.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/topviecit.vn\/blog\/jwt-la-gi\/\" \/>\n<meta property=\"og:site_name\" content=\"TopviecIT\" \/>\n<meta property=\"article:published_time\" content=\"2022-02-24T06:48:07+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/JWT-la-gi.png\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"500\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Dang Huong\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dang Huong\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/topviecit.vn\/blog\/jwt-la-gi\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/topviecit.vn\/blog\/jwt-la-gi\/\"},\"author\":{\"name\":\"Dang Huong\",\"@id\":\"https:\/\/topviecit.vn\/blog\/#\/schema\/person\/bf5d0c56a2c02d2a5dba393c3e18f8de\"},\"headline\":\"JWT L\u00e0 G\u00ec? 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