{"id":479032,"date":"2023-08-09T10:01:33","date_gmt":"2023-08-09T10:01:33","guid":{"rendered":""},"modified":"2023-09-05T11:18:02","modified_gmt":"2023-09-05T11:18:02","slug":"smime","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/smime\/","title":{"rendered":"NH\u1ece"},"content":{"rendered":"<p>SMIME, vi\u1ebft t\u1eaft c\u1ee7a Ti\u1ec7n \u00edch m\u1edf r\u1ed9ng th\u01b0 Internet an to\u00e0n\/\u0111a n\u0103ng, l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i, cung c\u1ea5p ph\u01b0\u01a1ng th\u1ee9c g\u1eedi v\u00e0 nh\u1eadn email an to\u00e0n. N\u00f3 \u0111\u1ea3m b\u1ea3o t\u00ednh b\u1ea3o m\u1eadt, t\u00ednh to\u00e0n v\u1eb9n v\u00e0 x\u00e1c th\u1ef1c c\u1ee7a email, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh c\u00f4ng c\u1ee5 thi\u1ebft y\u1ebfu cho c\u00e1c doanh nghi\u1ec7p, t\u1ed5 ch\u1ee9c v\u00e0 c\u00e1 nh\u00e2n \u0111ang t\u00ecm c\u00e1ch b\u1ea3o v\u1ec7 th\u00f4ng tin v\u00e0 th\u00f4ng tin li\u00ean l\u1ea1c nh\u1ea1y c\u1ea3m c\u1ee7a h\u1ecd.<\/p>\n<h2>L\u1ecbch s\u1eed ngu\u1ed3n g\u1ed1c c\u1ee7a SMIME v\u00e0 s\u1ef1 \u0111\u1ec1 c\u1eadp \u0111\u1ea7u ti\u00ean v\u1ec1 n\u00f3<\/h2>\n<p>Ngu\u1ed3n g\u1ed1c c\u1ee7a SMIME c\u00f3 th\u1ec3 b\u1eaft ngu\u1ed3n t\u1eeb \u0111\u1ea7u nh\u1eefng n\u0103m 1990 khi nh\u1eefng lo ng\u1ea1i v\u1ec1 quy\u1ec1n ri\u00eang t\u01b0 v\u00e0 b\u1ea3o m\u1eadt xung quanh vi\u1ec7c li\u00ean l\u1ea1c qua email b\u1eaft \u0111\u1ea7u xu\u1ea5t hi\u1ec7n. V\u00e0o th\u1eddi \u0111i\u1ec3m \u0111\u00f3, L\u1ef1c l\u01b0\u1ee3ng \u0111\u1eb7c nhi\u1ec7m k\u1ef9 thu\u1eadt Internet (IETF) \u0111\u00e3 b\u1eaft \u0111\u1ea7u ph\u00e1t tri\u1ec3n c\u00e1c ti\u00eau chu\u1ea9n \u0111\u1ec3 gi\u1ea3i quy\u1ebft nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y. SMIME, nh\u01b0 ch\u00fang ta bi\u1ebft ng\u00e0y nay, \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u l\u1ea7n \u0111\u1ea7u ti\u00ean v\u00e0o n\u0103m 1995 v\u1edbi vi\u1ec7c xu\u1ea5t b\u1ea3n phi\u00ean b\u1ea3n \u0111\u1ea7u ti\u00ean c\u1ee7a \u0111\u1eb7c t\u1ea3 SMIME, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 RFC 1847.<\/p>\n<h2>Th\u00f4ng tin chi ti\u1ebft v\u1ec1 SMIME: M\u1edf r\u1ed9ng ch\u1ee7 \u0111\u1ec1<\/h2>\n<p>SMIME \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng d\u1ef1a tr\u00ean c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1eadt m\u00e3 c\u1ee7a C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng kh\u00f3a c\u00f4ng khai (PKI) v\u00e0 ch\u1ee9ng ch\u1ec9 k\u1ef9 thu\u1eadt s\u1ed1. N\u00f3 t\u1eadn d\u1ee5ng m\u00e3 h\u00f3a b\u1ea5t \u0111\u1ed1i x\u1ee9ng \u0111\u1ec3 b\u1ea3o m\u1eadt n\u1ed9i dung email v\u00e0 ch\u1eef k\u00fd s\u1ed1 nh\u1eb1m x\u00e1c minh t\u00ednh x\u00e1c th\u1ef1c c\u1ee7a ng\u01b0\u1eddi g\u1eedi. Khi s\u1eed d\u1ee5ng SMIME, c\u1ea3 ng\u01b0\u1eddi g\u1eedi v\u00e0 ng\u01b0\u1eddi nh\u1eadn \u0111\u1ec1u ph\u1ea3i c\u00f3 ch\u1ee9ng ch\u1ec9 k\u1ef9 thu\u1eadt s\u1ed1 do C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 (CA) \u0111\u00e1ng tin c\u1eady c\u1ea5p.<\/p>\n<h2>C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a SMIME: SMIME ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o<\/h2>\n<p>Khi email \u0111\u01b0\u1ee3c g\u1eedi b\u1eb1ng SMIME, \u1ee9ng d\u1ee5ng email kh\u00e1ch c\u1ee7a ng\u01b0\u1eddi g\u1eedi s\u1ebd m\u00e3 h\u00f3a th\u01b0 b\u1eb1ng kh\u00f3a chung c\u1ee7a ng\u01b0\u1eddi nh\u1eadn, kh\u00f3a n\u00e0y c\u00f3 s\u1eb5n trong ch\u1ee9ng ch\u1ec9 k\u1ef9 thu\u1eadt s\u1ed1 c\u1ee7a h\u1ecd. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng ch\u1ec9 ng\u01b0\u1eddi nh\u1eadn d\u1ef1 ki\u1ebfn, ng\u01b0\u1eddi s\u1edf h\u1eefu kh\u00f3a ri\u00eang t\u01b0\u01a1ng \u1ee9ng, m\u1edbi c\u00f3 th\u1ec3 gi\u1ea3i m\u00e3 v\u00e0 \u0111\u1ecdc email. Ngo\u00e0i ra, ng\u01b0\u1eddi g\u1eedi c\u00f3 th\u1ec3 k\u00fd \u0111i\u1ec7n t\u1eed v\u00e0o th\u01b0 b\u1eb1ng kh\u00f3a ri\u00eang c\u1ee7a h\u1ecd \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng email kh\u00f4ng b\u1ecb thay \u0111\u1ed5i trong qu\u00e1 tr\u00ecnh truy\u1ec1n v\u00e0 \u0111\u1ec3 x\u00e1c minh danh t\u00ednh c\u1ee7a ng\u01b0\u1eddi g\u1eedi.<\/p>\n<h2>Ph\u00e2n t\u00edch c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a SMIME<\/h2>\n<p>C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a SMIME gi\u00fap n\u00f3 tr\u1edf th\u00e0nh c\u00f4ng ngh\u1ec7 \u0111\u00e1ng tin c\u1eady v\u00e0 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i bao g\u1ed3m:<\/p>\n<ol>\n<li>\n<p><strong>B\u1ea3o m\u1eadt<\/strong>: M\u00e3 h\u00f3a SMIME \u0111\u1ea3m b\u1ea3o r\u1eb1ng n\u1ed9i dung c\u1ee7a email \u0111\u01b0\u1ee3c gi\u1eef b\u00ed m\u1eadt v\u00e0 ch\u1ec9 ng\u01b0\u1eddi nh\u1eadn d\u1ef1 \u0111\u1ecbnh m\u1edbi c\u00f3 th\u1ec3 truy c\u1eadp \u0111\u01b0\u1ee3c.<\/p>\n<\/li>\n<li>\n<p><strong>Ch\u00ednh tr\u1ef1c<\/strong>: Vi\u1ec7c s\u1eed d\u1ee5ng ch\u1eef k\u00fd \u0111i\u1ec7n t\u1eed \u0111\u1ea3m b\u1ea3o r\u1eb1ng email kh\u00f4ng b\u1ecb gi\u1ea3 m\u1ea1o trong qu\u00e1 tr\u00ecnh truy\u1ec1n.<\/p>\n<\/li>\n<li>\n<p><strong>X\u00e1c th\u1ef1c<\/strong>: Ch\u1ee9ng ch\u1ec9 k\u1ef9 thu\u1eadt s\u1ed1 cho ph\u00e9p x\u00e1c minh danh t\u00ednh c\u1ee7a ng\u01b0\u1eddi g\u1eedi, ng\u0103n ch\u1eb7n h\u00e0nh vi gi\u1ea3 m\u1ea1o v\u00e0 m\u1ea1o danh.<\/p>\n<\/li>\n<li>\n<p><strong>Kh\u00f4ng b\u00e1c b\u1ecf<\/strong>: Ch\u1eef k\u00fd \u0111i\u1ec7n t\u1eed cung c\u1ea5p b\u1eb1ng ch\u1ee9ng cho th\u1ea5y ng\u01b0\u1eddi g\u1eedi th\u1ef1c s\u1ef1 \u0111\u00e3 g\u1eedi email, gi\u00fap h\u1ecd kh\u00f4ng th\u1ec3 ph\u1ee7 nh\u1eadn s\u1ef1 li\u00ean quan c\u1ee7a m\u00ecnh.<\/p>\n<\/li>\n<\/ol>\n<h2>C\u00e1c lo\u1ea1i SMIME<\/h2>\n<p>SMIME h\u1ed7 tr\u1ee3 c\u00e1c thu\u1eadt to\u00e1n m\u00e3 h\u00f3a v\u00e0 thu\u1eadt to\u00e1n ch\u1eef k\u00fd kh\u00e1c nhau, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u201ckh\u1ea3 n\u0103ng SMIME\u201d. M\u1ed9t s\u1ed1 lo\u1ea1i SMIME ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n<table>\n<thead>\n<tr>\n<th>Thu\u1eadt to\u00e1n m\u00e3 h\u00f3a<\/th>\n<th>Thu\u1eadt to\u00e1n ch\u1eef k\u00fd<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>RSA<\/td>\n<td>RSA<\/td>\n<\/tr>\n<tr>\n<td>DSA<\/td>\n<td>DSA<\/td>\n<\/tr>\n<tr>\n<td>AES<\/td>\n<td>ECDSA<\/td>\n<\/tr>\n<tr>\n<td>3DES<\/td>\n<td>SHA-1<\/td>\n<\/tr>\n<tr>\n<td>hoa tr\u00e0<\/td>\n<td>SHA-256<\/td>\n<\/tr>\n<tr>\n<td>\u2026<\/td>\n<td>\u2026<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>C\u00e1ch s\u1eed d\u1ee5ng SMIME: C\u00e1c v\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p li\u00ean quan \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng<\/h2>\n<p>SMIME \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u t\u00ecnh hu\u1ed1ng kh\u00e1c nhau, bao g\u1ed3m:<\/p>\n<ol>\n<li>\n<p><strong>Truy\u1ec1n th\u00f4ng an to\u00e0n<\/strong>: C\u00e1c t\u1ed5 ch\u1ee9c c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng SMIME \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o li\u00ean l\u1ea1c b\u00ed m\u1eadt v\u00e0 an to\u00e0n gi\u1eefa nh\u00e2n vi\u00ean v\u00e0 kh\u00e1ch h\u00e0ng.<\/p>\n<\/li>\n<li>\n<p><strong>X\u00e1c th\u1ef1c email<\/strong>: B\u1eb1ng c\u00e1ch x\u00e1c th\u1ef1c ch\u1eef k\u00fd s\u1ed1, ng\u01b0\u1eddi nh\u1eadn c\u00f3 th\u1ec3 tin t\u01b0\u1edfng v\u00e0o t\u00ednh x\u00e1c th\u1ef1c c\u1ee7a ng\u01b0\u1eddi g\u1eedi.<\/p>\n<\/li>\n<li>\n<p><strong>B\u1ea3o v\u1ec7 d\u1eef li\u1ec7u<\/strong>: SMIME b\u1ea3o v\u1ec7 th\u00f4ng tin nh\u1ea1y c\u1ea3m nh\u01b0 d\u1eef li\u1ec7u t\u00e0i ch\u00ednh, th\u00f4ng tin c\u00e1 nh\u00e2n v\u00e0 s\u1edf h\u1eefu tr\u00ed tu\u1ec7 kh\u1ecfi b\u1ecb truy c\u1eadp tr\u00e1i ph\u00e9p.<\/p>\n<\/li>\n<\/ol>\n<p>Tuy nhi\u00ean, c\u00f3 m\u1ed9t s\u1ed1 th\u00e1ch th\u1ee9c li\u00ean quan \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng SMIME, bao g\u1ed3m:<\/p>\n<ul>\n<li>\n<p><strong>Qu\u1ea3n l\u00fd kh\u00f3a<\/strong>: Qu\u1ea3n l\u00fd kh\u00f3a th\u00edch h\u1ee3p l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi t\u00ednh b\u1ea3o m\u1eadt c\u1ee7a SMIME. \u0110\u1ea3m b\u1ea3o l\u01b0u tr\u1eef kh\u00f3a an to\u00e0n v\u00e0 thu h\u1ed3i c\u00e1c ch\u1ee9ng ch\u1ec9 b\u1ecb x\u00e2m ph\u1ea1m l\u00e0 nh\u1eefng nhi\u1ec7m v\u1ee5 thi\u1ebft y\u1ebfu.<\/p>\n<\/li>\n<li>\n<p><strong>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c<\/strong>: C\u00e1c \u1ee9ng d\u1ee5ng email v\u00e0 m\u00e1y ch\u1ee7 kh\u00e1c nhau c\u00f3 th\u1ec3 c\u00f3 m\u1ee9c \u0111\u1ed9 h\u1ed7 tr\u1ee3 SMIME kh\u00e1c nhau, d\u1eabn \u0111\u1ebfn c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch.<\/p>\n<\/li>\n<li>\n<p><strong>Ch\u1ee9ng ch\u1ec9 tin c\u1eady<\/strong>: Ng\u01b0\u1eddi d\u00f9ng ph\u1ea3i \u0111\u1ea3m b\u1ea3o r\u1eb1ng h\u1ecd tin t\u01b0\u1edfng c\u00e1c CA c\u1ea5p ch\u1ee9ng ch\u1ec9 k\u1ef9 thu\u1eadt s\u1ed1 \u0111\u1ec3 tr\u00e1nh c\u00e1c r\u1ee7i ro b\u1ea3o m\u1eadt ti\u1ec1m \u1ea9n.<\/p>\n<\/li>\n<\/ul>\n<p>\u0110\u1ec3 v\u01b0\u1ee3t qua nh\u1eefng th\u00e1ch th\u1ee9c n\u00e0y, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 tri\u1ec3n khai c\u00e1c ph\u01b0\u01a1ng ph\u00e1p qu\u1ea3n l\u00fd kh\u00f3a m\u1ea1nh m\u1ebd, ch\u1ecdn CA uy t\u00edn v\u00e0 s\u1eed d\u1ee5ng \u1ee9ng d\u1ee5ng email t\u01b0\u01a1ng th\u00edch.<\/p>\n<h2>C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh v\u00e0 nh\u1eefng so s\u00e1nh kh\u00e1c v\u1edbi c\u00e1c thu\u1eadt ng\u1eef t\u01b0\u01a1ng t\u1ef1<\/h2>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 so s\u00e1nh SMIME v\u1edbi m\u1ed9t s\u1ed1 c\u00f4ng ngh\u1ec7 t\u01b0\u01a1ng t\u1ef1:<\/p>\n<table>\n<thead>\n<tr>\n<th>C\u00f4ng ngh\u1ec7<\/th>\n<th>M\u1ee5c \u0111\u00edch<\/th>\n<th>S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>NH\u1ece<\/td>\n<td>B\u1ea3o m\u1eadt li\u00ean l\u1ea1c qua email<\/td>\n<td>\u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t cho email<\/td>\n<\/tr>\n<tr>\n<td>PGP (Quy\u1ec1n ri\u00eang t\u01b0 kh\u00e1 t\u1ed1t)<\/td>\n<td>B\u1ea3o m\u1eadt th\u00f4ng tin li\u00ean l\u1ea1c qua email v\u00e0 c\u00e1c t\u1eadp tin<\/td>\n<td>\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i h\u01a1n trong c\u00e1c m\u00f4i tr\u01b0\u1eddng phi c\u00f4ng ty v\u00e0 mang l\u1ea1i s\u1ef1 linh ho\u1ea1t h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td>SSL\/TLS<\/td>\n<td>Truy\u1ec1n d\u1eef li\u1ec7u an to\u00e0n (HTTPS)<\/td>\n<td>Ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 b\u1ea3o m\u1eadt k\u1ebft n\u1ed1i trang web v\u00e0 giao d\u1ecbch tr\u1ef1c tuy\u1ebfn<\/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 SMIME<\/h2>\n<p>Trong t\u01b0\u01a1ng lai, SMIME d\u1ef1 ki\u1ebfn s\u1ebd ti\u1ebfp t\u1ee5c \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c b\u1ea3o m\u1eadt li\u00ean l\u1ea1c qua email, \u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi c\u00e1c doanh nghi\u1ec7p v\u00e0 t\u1ed5 ch\u1ee9c. Khi c\u00f4ng ngh\u1ec7 ph\u00e1t tri\u1ec3n, nh\u1eefng ti\u1ebfn b\u1ed9 trong qu\u1ea3n l\u00fd kh\u00f3a, thu\u1eadt to\u00e1n m\u00e3 h\u00f3a v\u00e0 c\u1ea5p ch\u1ee9ng ch\u1ec9 c\u00f3 th\u1ec3 s\u1ebd n\u00e2ng cao h\u01a1n n\u1eefa t\u00ednh b\u1ea3o m\u1eadt v\u00e0 kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng c\u1ee7a SMIME.<\/p>\n<p>H\u01a1n n\u1eefa, vi\u1ec7c t\u00edch h\u1ee3p SMIME v\u1edbi c\u00e1c n\u1ec1n t\u1ea3ng v\u00e0 c\u00f4ng ngh\u1ec7 truy\u1ec1n th\u00f4ng m\u1edbi n\u1ed5i, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c c\u00f4ng c\u1ee5 c\u1ed9ng t\u00e1c v\u00e0 nh\u1eafn tin t\u1ee9c th\u1eddi, c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng ph\u1ea1m vi v\u00e0 ti\u1ec7n \u00edch c\u1ee7a n\u00f3 trong t\u01b0\u01a1ng lai.<\/p>\n<h2>C\u00e1ch s\u1eed d\u1ee5ng ho\u1eb7c li\u00ean k\u1ebft m\u00e1y ch\u1ee7 proxy v\u1edbi SMIME<\/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 b\u1ed5 sung cho SMIME theo m\u1ed9t s\u1ed1 c\u00e1ch:<\/p>\n<ol>\n<li>\n<p><strong>Quy\u1ec1n ri\u00eang t\u01b0 n\u00e2ng cao<\/strong>: M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 th\u00eam l\u1edbp b\u1ea3o m\u1eadt b\u1ed5 sung cho giao ti\u1ebfp qua email b\u1eb1ng c\u00e1ch \u0111\u00f3ng vai tr\u00f2 trung gian gi\u1eefa ng\u01b0\u1eddi g\u1eedi v\u00e0 ng\u01b0\u1eddi nh\u1eadn. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 c\u00f3 l\u1ee3i, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u1edf nh\u1eefng khu v\u1ef1c c\u00f3 quy \u0111\u1ecbnh nghi\u00eam ng\u1eb7t v\u1ec1 quy\u1ec1n ri\u00eang t\u01b0 d\u1eef li\u1ec7u.<\/p>\n<\/li>\n<li>\n<p><strong>\u1ea9n danh<\/strong>: Vi\u1ec7c s\u1eed d\u1ee5ng m\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 gi\u00fap che gi\u1ea5u ngu\u1ed3n g\u1ed1c c\u1ee7a email, t\u1ea1o th\u00eam m\u1ed9t l\u1edbp \u1ea9n danh cho qu\u00e1 tr\u00ecnh li\u00ean l\u1ea1c.<\/p>\n<\/li>\n<li>\n<p><strong>\u0110\u01b0\u1eddng v\u00f2ng \u0111\u1ecbnh v\u1ecb \u0111\u1ecba l\u00fd<\/strong>: M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp c\u00e1c d\u1ecbch v\u1ee5 SMIME t\u1eeb c\u00e1c v\u1ecb tr\u00ed \u0111\u1ecba l\u00fd kh\u00e1c nhau, b\u1ecf qua c\u00e1c gi\u1edbi h\u1ea1n khu v\u1ef1c.<\/p>\n<\/li>\n<\/ol>\n<p>Tuy nhi\u00ean, \u0111i\u1ec1u quan tr\u1ecdng c\u1ea7n l\u01b0u \u00fd l\u00e0 m\u00e1y ch\u1ee7 proxy ph\u1ea3i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00f9ng v\u1edbi SMIME ch\u1ee9 kh\u00f4ng ph\u1ea3i \u0111\u1ec3 thay th\u1ebf cho vi\u1ec7c m\u00e3 h\u00f3a v\u00e0 x\u00e1c th\u1ef1c do SMIME cung c\u1ea5p.<\/p>\n<h2>Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 SMIME, b\u1ea1n c\u00f3 th\u1ec3 truy c\u1eadp c\u00e1c t\u00e0i nguy\u00ean sau:<\/p>\n<ul>\n<li><a href=\"https:\/\/tools.ietf.org\/html\/rfc1847\" target=\"_new\" rel=\"noopener nofollow\">RFC 1847<\/a>: \u0110\u1eb7c t\u1ea3 SMIME ban \u0111\u1ea7u.<\/li>\n<li><a href=\"https:\/\/datatracker.ietf.org\/wg\/smime\/about\/\" target=\"_new\" rel=\"noopener nofollow\">Nh\u00f3m l\u00e0m vi\u1ec7c IETF SMIME<\/a>: Th\u00f4ng tin v\u1ec1 nh\u00f3m c\u00f4ng t\u00e1c IETF ch\u1ecbu tr\u00e1ch nhi\u1ec7m v\u1ec1 ti\u00eau chu\u1ea9n SMIME.<\/li>\n<li><a href=\"https:\/\/www.globalsign.com\/en\/blog\/tag\/smime\/\" target=\"_new\" rel=\"noopener nofollow\">Blog GlobalSign \u2013 SMIME<\/a>: C\u00e1c b\u00e0i vi\u1ebft v\u00e0 b\u00e0i \u0111\u0103ng tr\u00ean blog li\u00ean quan \u0111\u1ebfn SMIME v\u00e0 b\u1ea3o m\u1eadt email.<\/li>\n<\/ul>\n<p>T\u00f3m l\u1ea1i, SMIME l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 m\u1ea1nh m\u1ebd \u0111\u1ea3m b\u1ea3o t\u00ednh b\u1ea3o m\u1eadt, t\u00ednh to\u00e0n v\u1eb9n v\u00e0 x\u00e1c th\u1ef1c c\u1ee7a li\u00ean l\u1ea1c qua email. B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng SMIME, c\u00e1c c\u00e1 nh\u00e2n v\u00e0 t\u1ed5 ch\u1ee9c c\u00f3 th\u1ec3 b\u1ea3o v\u1ec7 th\u00f4ng tin nh\u1ea1y c\u1ea3m c\u1ee7a m\u00ecnh v\u00e0 t\u1ea1o d\u1ef1ng ni\u1ec1m tin v\u00e0o th\u01b0 t\u1eeb email c\u1ee7a h\u1ecd. Khi k\u1ebft h\u1ee3p v\u1edbi m\u00e1y ch\u1ee7 proxy, l\u1ee3i \u00edch b\u1ea3o m\u1eadt v\u00e0 quy\u1ec1n ri\u00eang t\u01b0 c\u1ee7a SMIME c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u0103ng c\u01b0\u1eddng h\u01a1n n\u1eefa, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh t\u00e0i s\u1ea3n qu\u00fd gi\u00e1 trong b\u1ed1i c\u1ea3nh k\u1ef9 thu\u1eadt s\u1ed1 hi\u1ec7n \u0111\u1ea1i.<\/p>","protected":false},"featured_media":479033,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-479032","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>SMIME: Securing Your Email Communications<\/mark>","faq_items":[{"question":"What is SMIME?","answer":"<p>SMIME, which stands for Secure\/Multipurpose Internet Mail Extensions, is a technology that provides a secure method of sending and receiving emails. It ensures the confidentiality, integrity, and authentication of email messages, making it an essential tool for safeguarding sensitive information.<\/p>"},{"question":"How did SMIME originate, and when was it first mentioned?","answer":"<p>The origins of SMIME can be traced back to the early 1990s when privacy and security concerns surrounding email communication emerged. It was first mentioned in 1995 with the publication of the initial version of the SMIME specification, known as RFC 1847.<\/p>"},{"question":"How does SMIME work?","answer":"<p>SMIME is built upon the cryptographic infrastructure of Public Key Infrastructure (PKI) and digital certificates. When an email is sent using SMIME, the sender's email client encrypts the message using the recipient's public key, ensuring only the intended recipient can decrypt and read the email. Digital signatures verify the sender's identity and the integrity of the email.<\/p>"},{"question":"What are the key features of SMIME?","answer":"<p>The key features of SMIME include confidentiality (encryption ensures private content), integrity (digital signatures prevent tampering), authentication (verifying sender's identity), and non-repudiation (proving the sender's involvement).<\/p>"},{"question":"What types of SMIME exist?","answer":"<p>SMIME supports various encryption and signature algorithms, such as RSA, DSA, AES, ECDSA, SHA-1, SHA-256, and more.<\/p>"},{"question":"How can SMIME be used, and what are the challenges and solutions related to its use?","answer":"<p>SMIME is used for secure communication, email authentication, and data protection. Some challenges include key management, interoperability, and certificate trust. Solutions involve robust key management practices, choosing reputable CAs, and using compatible email clients.<\/p>"},{"question":"How does SMIME compare with similar technologies like PGP and SSL\/TLS?","answer":"<p>SMIME is specifically designed for securing emails, while PGP is more widely used in non-corporate settings and offers more flexibility. SSL\/TLS primarily secures data transmission for websites and online transactions.<\/p>"},{"question":"What is the future outlook for SMIME?","answer":"<p>In the future, SMIME is expected to continue playing a vital role in securing email communication. Advancements in key management, encryption algorithms, and certificate issuance are likely to enhance its security and usability.<\/p>"},{"question":"How can proxy servers be associated with SMIME?","answer":"<p>Proxy servers, like those provided by OneProxy, can enhance SMIME by adding an extra layer of privacy and anonymity to email communications. They can also bypass geolocation restrictions, but they should be used in conjunction with SMIME for comprehensive security.<\/p>"},{"question":"Where can I find more information about SMIME?","answer":"<p>For more details about SMIME, you can refer to resources such as RFC 1847, the IETF SMIME Working Group, and GlobalSign's blog posts related to SMIME and email security.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/479032","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\/479032\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/479033"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=479032"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}