{"id":476198,"date":"2023-08-09T07:26:52","date_gmt":"2023-08-09T07:26:52","guid":{"rendered":""},"modified":"2023-09-05T11:12:15","modified_gmt":"2023-09-05T11:12:15","slug":"certificate-authority-server","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/certificate-authority-server\/","title":{"rendered":"M\u00e1y ch\u1ee7 c\u1ee7a c\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9"},"content":{"rendered":"

M\u00e1y ch\u1ee7 c\u1ee7a C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 (CA) \u0111\u1ea1i di\u1ec7n cho m\u1ed9t kh\u00eda c\u1ea1nh quan tr\u1ecdng c\u1ee7a truy\u1ec1n th\u00f4ng internet an to\u00e0n v\u00ec ch\u00fang cung c\u1ea5p n\u1ec1n t\u1ea3ng m\u1eadt m\u00e3 c\u1ea7n thi\u1ebft cho c\u00e1c k\u1ebft n\u1ed1i an to\u00e0n gi\u1eefa m\u00e1y kh\u00e1ch v\u00e0 m\u00e1y ch\u1ee7. Ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a c\u00e1c m\u00e1y ch\u1ee7 n\u00e0y l\u00e0 c\u1ea5p v\u00e0 qu\u1ea3n l\u00fd ch\u1ee9ng ch\u1ec9 k\u1ef9 thu\u1eadt s\u1ed1 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c th\u1ef1c v\u00e0 m\u00e3 h\u00f3a d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c trao \u0111\u1ed5i qua m\u1ea1ng c\u00f4ng c\u1ed9ng.<\/p>\n

S\u1ef1 ra \u0111\u1eddi v\u00e0 ph\u00e1t tri\u1ec3n c\u1ee7a m\u00e1y ch\u1ee7 c\u1ea5p ch\u1ee9ng ch\u1ec9<\/h2>\n

Kh\u00e1i ni\u1ec7m C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 xu\u1ea5t hi\u1ec7n l\u1ea7n \u0111\u1ea7u ti\u00ean v\u00e0o nh\u1eefng n\u0103m 1970, tr\u00f9ng v\u1edbi s\u1ef1 ra \u0111\u1eddi c\u1ee7a m\u1eadt m\u00e3 kh\u00f3a c\u00f4ng khai. Nh\u1eefng ng\u01b0\u1eddi ti\u00ean phong Martin Hellman v\u00e0 Whitfield Diffie \u0111\u00e3 ph\u00e1t minh ra s\u01a1 \u0111\u1ed3 m\u00e3 h\u00f3a n\u00e0y, trong \u0111\u00f3 hai kh\u00f3a \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng: m\u1ed9t kh\u00f3a ri\u00eang t\u01b0, \u0111\u01b0\u1ee3c gi\u1eef b\u00ed m\u1eadt v\u00e0 m\u1ed9t kh\u00f3a c\u00f4ng khai, \u0111\u01b0\u1ee3c chia s\u1ebb mi\u1ec5n ph\u00ed. Tuy nhi\u00ean, vi\u1ec7c x\u00e1c minh t\u00ednh x\u00e1c th\u1ef1c c\u1ee7a kh\u00f3a c\u00f4ng khai c\u1ea7n c\u00f3 b\u00ean th\u1ee9 ba \u0111\u00e1ng tin c\u1eady, m\u1edf \u0111\u01b0\u1eddng cho kh\u00e1i ni\u1ec7m C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9.<\/p>\n

C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng \u0111\u1ea7u ti\u00ean l\u00e0 VeriSign, b\u1eaft \u0111\u1ea7u c\u1ea5p ch\u1ee9ng ch\u1ec9 v\u00e0o n\u0103m 1995. Khi World Wide Web ph\u00e1t tri\u1ec3n, nhu c\u1ea7u v\u1ec1 th\u00f4ng tin li\u00ean l\u1ea1c \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a v\u00e0 m\u00f4 h\u00ecnh tin c\u1eady c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng l\u00e0 r\u00f5 r\u00e0ng, do \u0111\u00f3 vai tr\u00f2 c\u1ee7a C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 ng\u00e0y c\u00e0ng tr\u1edf n\u00ean quan tr\u1ecdng.<\/p>\n

Vai tr\u00f2 v\u00e0 t\u1ea7m quan tr\u1ecdng c\u1ee7a m\u00e1y ch\u1ee7 c\u1ea5p ch\u1ee9ng ch\u1ec9<\/h2>\n

M\u00e1y ch\u1ee7 c\u1ee7a C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 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 x\u00e1c th\u1ef1c danh t\u00ednh c\u1ee7a c\u00e1c trang web v\u00e0 \u0111\u1ea3m b\u1ea3o truy\u1ec1n d\u1eef li\u1ec7u an to\u00e0n qua internet b\u1eb1ng c\u00e1ch thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a.<\/p>\n

Khi m\u00e1y kh\u00e1ch (v\u00ed d\u1ee5: tr\u00ecnh duy\u1ec7t web) y\u00eau c\u1ea7u k\u1ebft n\u1ed1i an to\u00e0n v\u1edbi m\u00e1y ch\u1ee7 (nh\u01b0 trang web), m\u00e1y ch\u1ee7 s\u1ebd xu\u1ea5t tr\u00ecnh ch\u1ee9ng ch\u1ec9 k\u1ef9 thu\u1eadt s\u1ed1. Ch\u1ee9ng ch\u1ec9 n\u00e0y, \u0111\u01b0\u1ee3c k\u00fd b\u1edfi m\u1ed9t CA \u0111\u00e1ng tin c\u1eady, \u0111\u1ea3m b\u1ea3o v\u1edbi kh\u00e1ch h\u00e0ng r\u1eb1ng m\u00e1y ch\u1ee7 th\u1ef1c s\u1ef1 \u0111\u00fang nh\u01b0 nh\u1eefng g\u00ec n\u00f3 tuy\u00ean b\u1ed1. N\u1ebfu kh\u00f4ng c\u00f3 ch\u1ee9ng ch\u1ec9 n\u00e0y, c\u00e1c th\u1ef1c th\u1ec3 \u0111\u1ed9c h\u1ea1i c\u00f3 th\u1ec3 gi\u1ea3 d\u1ea1ng m\u00e1y ch\u1ee7 h\u1ee3p ph\u00e1p, d\u1eabn \u0111\u1ebfn c\u00e1c m\u1ed1i \u0111e d\u1ecda b\u1ea3o m\u1eadt ti\u1ec1m \u1ea9n nh\u01b0 t\u1ea5n c\u00f4ng l\u1eeba \u0111\u1ea3o ho\u1eb7c k\u1ebb trung gian.<\/p>\n

Ho\u1ea1t \u0111\u1ed9ng b\u00ean trong c\u1ee7a m\u00e1y ch\u1ee7 c\u1ea5p ch\u1ee9ng ch\u1ec9<\/h2>\n

M\u00e1y ch\u1ee7 CA th\u1ef1c hi\u1ec7n ba nhi\u1ec7m v\u1ee5 c\u01a1 b\u1ea3n: x\u00e1c minh danh t\u00ednh c\u1ee7a c\u00e1c th\u1ef1c th\u1ec3 y\u00eau c\u1ea7u ch\u1ee9ng ch\u1ec9 (x\u00e1c th\u1ef1c t\u00ean mi\u1ec1n), c\u1ea5p ch\u1ee9ng ch\u1ec9 v\u00e0 l\u01b0u gi\u1eef b\u1ea3n ghi c\u00e1c ch\u1ee9ng ch\u1ec9 m\u00e0 n\u00f3 \u0111\u00e3 c\u1ea5p (v\u00e0 trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p b\u1ecb thu h\u1ed3i).<\/p>\n

    \n
  1. \n

    X\u00e1c minh danh t\u00ednh<\/strong>: CA ph\u1ea3i x\u00e1c nh\u1eadn danh t\u00ednh c\u1ee7a th\u1ef1c th\u1ec3 y\u00eau c\u1ea7u ch\u1ee9ng ch\u1ec9. \u0110\u1ed1i v\u1edbi c\u00e1c trang web, \u0111i\u1ec1u n\u00e0y th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn vi\u1ec7c x\u00e1c minh r\u1eb1ng ng\u01b0\u1eddi y\u00eau c\u1ea7u ki\u1ec3m so\u00e1t mi\u1ec1n m\u00e0 ch\u1ee9ng ch\u1ec9 \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u.<\/p>\n<\/li>\n

  2. \n

    C\u1ea5p ch\u1ee9ng ch\u1ec9<\/strong>: Sau khi x\u00e1c th\u1ef1c, CA s\u1ebd t\u1ea1o ch\u1ee9ng ch\u1ec9 k\u1ef9 thu\u1eadt s\u1ed1. Ch\u1ee9ng ch\u1ec9 n\u00e0y ch\u1ee9a kh\u00f3a chung c\u1ee7a ng\u01b0\u1eddi y\u00eau c\u1ea7u, th\u00f4ng tin v\u1ec1 danh t\u00ednh c\u1ee7a th\u1ef1c th\u1ec3 v\u00e0 ch\u1eef k\u00fd s\u1ed1 c\u1ee7a CA.<\/p>\n<\/li>\n

  3. \n

    Th\u00f4ng tin tr\u1ea1ng th\u00e1i v\u00e0 thu h\u1ed3i ch\u1ee9ng ch\u1ec9<\/strong>: Trong tr\u01b0\u1eddng h\u1ee3p ch\u1ee9ng ch\u1ec9 c\u00f3 th\u1ec3 \u0111\u00e3 b\u1ecb x\u00e2m ph\u1ea1m, CA c\u00f3 kh\u1ea3 n\u0103ng thu h\u1ed3i ch\u1ee9ng ch\u1ec9 \u0111\u00f3. CA c\u0169ng duy tr\u00ec m\u1ed9t danh s\u00e1ch c\u00e1c ch\u1ee9ng ch\u1ec9 \u0111\u00e3 c\u1ea5p v\u00e0 b\u1ecb thu h\u1ed3i, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 Danh s\u00e1ch thu h\u1ed3i ch\u1ee9ng ch\u1ec9 (CRL) ho\u1eb7c m\u1ed9t gi\u1ea3i ph\u00e1p hi\u1ec7n \u0111\u1ea1i h\u01a1n, Giao th\u1ee9c tr\u1ea1ng th\u00e1i ch\u1ee9ng ch\u1ec9 tr\u1ef1c tuy\u1ebfn (OCSP).<\/p>\n<\/li>\n<\/ol>\n

    C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a m\u00e1y ch\u1ee7 c\u1ea5p ch\u1ee9ng ch\u1ec9<\/h2>\n

    C\u00e1c t\u00ednh n\u0103ng c\u01a1 b\u1ea3n c\u1ee7a m\u00e1y ch\u1ee7 C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 nh\u01b0 sau:<\/p>\n

      \n
    1. \n

      \u0110\u1ed9 tin c\u1eady<\/strong>: L\u00e0 c\u00e1c th\u1ef1c th\u1ec3 thi\u1ebft l\u1eadp s\u1ef1 tin c\u1eady tr\u00ean internet, b\u1ea3n th\u00e2n c\u00e1c CA c\u0169ng ph\u1ea3i \u0111\u01b0\u1ee3c tin c\u1eady. H\u1ecd tr\u1ea3i qua qu\u00e1 tr\u00ecnh ki\u1ec3m tra b\u1ea3o m\u1eadt nghi\u00eam ng\u1eb7t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng v\u00e0 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ecd \u0111\u01b0\u1ee3c an to\u00e0n.<\/p>\n<\/li>\n

    2. \n

      X\u00e1c minh danh t\u00ednh<\/strong>: M\u00e1y ch\u1ee7 CA x\u00e1c minh danh t\u00ednh c\u1ee7a c\u00e1c th\u1ef1c th\u1ec3 y\u00eau c\u1ea7u ch\u1ee9ng ch\u1ec9.<\/p>\n<\/li>\n

    3. \n

      C\u1ea5p ch\u1ee9ng ch\u1ec9<\/strong>: M\u00e1y ch\u1ee7 CA t\u1ea1o v\u00e0 k\u00fd ch\u1ee9ng ch\u1ec9 k\u1ef9 thu\u1eadt s\u1ed1.<\/p>\n<\/li>\n

    4. \n

      Thu h\u1ed3i ch\u1ee9ng ch\u1ec9<\/strong>: M\u00e1y ch\u1ee7 CA duy tr\u00ec c\u01a1 ch\u1ebf thu h\u1ed3i ch\u1ee9ng ch\u1ec9 v\u00e0 th\u00f4ng b\u00e1o cho kh\u00e1ch h\u00e0ng v\u1ec1 vi\u1ec7c thu h\u1ed3i \u0111\u00f3.<\/p>\n<\/li>\n<\/ol>\n

      C\u00e1c lo\u1ea1i c\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 kh\u00e1c nhau<\/h2>\n

      Nh\u00ecn chung c\u00f3 hai lo\u1ea1i C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9:<\/p>\n

        \n
      1. \n

        CA c\u00f4ng c\u1ed9ng<\/strong>: C\u00e1c CA n\u00e0y c\u1ea5p ch\u1ee9ng ch\u1ec9 cho c\u00e1c m\u00e1y ch\u1ee7 c\u00f3 th\u1ec3 truy c\u1eadp c\u00f4ng khai, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u00e1y ch\u1ee7 web. Ch\u00fang v\u1ed1n \u0111\u01b0\u1ee3c c\u00e1c tr\u00ecnh duy\u1ec7t web v\u00e0 h\u1ec7 \u0111i\u1ec1u h\u00e0nh tin c\u1eady, ngh\u0129a l\u00e0 c\u00e1c ch\u1ee9ng ch\u1ec9 do ch\u00fang c\u1ea5p s\u1ebd \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn m\u00e0 kh\u00f4ng c\u1ea7n c\u1ea3nh b\u00e1o. C\u00e1c v\u00ed d\u1ee5 bao g\u1ed3m DigiCert, GlobalSign v\u00e0 Let's Encrypt.<\/p>\n<\/li>\n

      2. \n

        CA ri\u00eang<\/strong>: C\u00e1c CA n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ed9t t\u1ed5 ch\u1ee9c v\u00e0 v\u1ed1n kh\u00f4ng \u0111\u01b0\u1ee3c c\u00e1c h\u1ec7 th\u1ed1ng b\u00ean ngo\u00e0i tin c\u1eady. H\u1ecd c\u1ea5p ch\u1ee9ng ch\u1ec9 cho m\u00e1y ch\u1ee7, ng\u01b0\u1eddi d\u00f9ng v\u00e0 thi\u1ebft b\u1ecb n\u1ed9i b\u1ed9.<\/p>\n<\/li>\n<\/ol>\n\n\n\n\n\n\n
        Ki\u1ec3u<\/th>\nTr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/th>\nV\u00ed d\u1ee5<\/th>\nL\u00f2ng tin<\/th>\n<\/tr>\n<\/thead>\n
        CA c\u00f4ng khai<\/td>\nM\u00e1y ch\u1ee7 c\u00f4ng c\u1ed9ng<\/td>\nDigiCert, GlobalSign, H\u00e3y m\u00e3 h\u00f3a<\/td>\nV\u1ed1n \u0111\u00e3 \u0111\u00e1ng tin c\u1eady<\/td>\n<\/tr>\n
        CA ri\u00eang<\/td>\nS\u1eed d\u1ee5ng n\u1ed9i b\u1ed9<\/td>\nCA c\u00f4ng ty<\/td>\nPh\u1ea3i \u0111\u01b0\u1ee3c tin c\u1eady theo c\u00e1ch th\u1ee7 c\u00f4ng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        S\u1eed d\u1ee5ng m\u00e1y ch\u1ee7 c\u1ee7a c\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9: Nh\u1eefng th\u00e1ch th\u1ee9c v\u00e0 gi\u1ea3i ph\u00e1p<\/h2>\n

        Th\u00e1ch th\u1ee9c ch\u00ednh trong vi\u1ec7c s\u1eed d\u1ee5ng m\u00e1y ch\u1ee7 c\u1ee7a C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 l\u00e0 qu\u1ea3n l\u00fd s\u1ef1 tin c\u1eady. Vi\u1ec7c tin t\u01b0\u1edfng m\u1ed9t CA l\u1eeba \u0111\u1ea3o ho\u1eb7c b\u1ecb x\u00e2m ph\u1ea1m c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn c\u00e1c m\u1ed1i \u0111e d\u1ecda b\u1ea3o m\u1eadt nghi\u00eam tr\u1ecdng. \u0110\u1ec3 gi\u1ea3m thi\u1ec3u \u0111i\u1ec1u n\u00e0y, c\u00e1c tr\u00ecnh duy\u1ec7t v\u00e0 h\u1ec7 \u0111i\u1ec1u h\u00e0nh s\u1ebd duy tr\u00ec danh s\u00e1ch c\u00e1c CA \u0111\u00e1ng tin c\u1eady v\u00e0 th\u01b0\u1eddng xuy\u00ean c\u1eadp nh\u1eadt danh s\u00e1ch \u0111\u00f3.<\/p>\n

        M\u1ed9t th\u00e1ch th\u1ee9c kh\u00e1c l\u00e0 h\u1ebft h\u1ea1n ch\u1ee9ng ch\u1ec9. Ch\u1ee9ng ch\u1ec9 \u0111\u01b0\u1ee3c c\u1ea5p trong m\u1ed9t th\u1eddi h\u1ea1n c\u1ee5 th\u1ec3, sau \u0111\u00f3 ch\u00fang ph\u1ea3i \u0111\u01b0\u1ee3c gia h\u1ea1n. Vi\u1ec7c b\u1ecf qua vi\u1ec7c gia h\u1ea1n ch\u1ee9ng ch\u1ec9 c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn gi\u00e1n \u0111o\u1ea1n d\u1ecbch v\u1ee5. C\u00e1c gi\u1ea3i ph\u00e1p t\u1ef1 \u0111\u1ed9ng h\u00f3a nh\u01b0 giao th\u1ee9c M\u00f4i tr\u01b0\u1eddng qu\u1ea3n l\u00fd ch\u1ee9ng ch\u1ec9 t\u1ef1 \u0111\u1ed9ng (ACME) c\u00f3 th\u1ec3 gi\u1ea3m b\u1edbt v\u1ea5n \u0111\u1ec1 n\u00e0y b\u1eb1ng c\u00e1ch t\u1ef1 \u0111\u1ed9ng h\u00f3a vi\u1ec7c c\u1ea5p v\u00e0 gia h\u1ea1n ch\u1ee9ng ch\u1ec9.<\/p>\n

        So s\u00e1nh m\u00e1y ch\u1ee7 c\u1ee7a c\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9<\/h2>\n\n\n\n\n\n\n\n
        Th\u00e0nh ph\u1ea7n<\/th>\nC\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9<\/th>\nM\u00e1y ch\u1ee7 DNS<\/th>\nM\u00e1y ch\u1ee7 proxy<\/th>\n<\/tr>\n<\/thead>\n
        Ch\u1ee9c n\u0103ng ch\u00ednh<\/td>\nC\u1ea5p v\u00e0 qu\u1ea3n l\u00fd ch\u1ee9ng th\u01b0 s\u1ed1<\/td>\nD\u1ecbch t\u00ean mi\u1ec1n th\u00e0nh \u0111\u1ecba ch\u1ec9 IP<\/td>\n\u0110\u00f3ng vai tr\u00f2 trung gian cho c\u00e1c y\u00eau c\u1ea7u<\/td>\n<\/tr>\n
        Vai tr\u00f2 b\u1ea3o m\u1eadt<\/td>\nX\u00e1c th\u1ef1c m\u00e1y ch\u1ee7, m\u00e3 h\u00f3a d\u1eef li\u1ec7u<\/td>\nB\u1ea3o v\u1ec7 ch\u1ed1ng gi\u1ea3 m\u1ea1o t\u00ean mi\u1ec1n<\/td>\nCung c\u1ea5p \u1ea9n danh, l\u1ecdc n\u1ed9i dung<\/td>\n<\/tr>\n
        Y\u00eau c\u1ea7u s\u1ef1 tin c\u1eady<\/td>\n\u0110\u00fang<\/td>\nm\u1ed9t ph\u1ea7n<\/td>\nKH\u00d4NG<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        T\u01b0\u01a1ng lai c\u1ee7a m\u00e1y ch\u1ee7 c\u1ea5p ch\u1ee9ng ch\u1ec9<\/h2>\n

        S\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a m\u00e1y ch\u1ee7 C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 g\u1eafn li\u1ec1n v\u1edbi c\u00e1c xu h\u01b0\u1edbng r\u1ed9ng h\u01a1n v\u1ec1 an ninh m\u1ea1ng v\u00e0 m\u1eadt m\u00e3. M\u1ed9t l\u0129nh v\u1ef1c tr\u1ecdng t\u00e2m \u0111\u00e1ng ch\u00fa \u00fd l\u00e0 c\u00e1c thu\u1eadt to\u00e1n kh\u00e1ng l\u01b0\u1ee3ng t\u1eed. Khi \u0111i\u1ec7n to\u00e1n l\u01b0\u1ee3ng t\u1eed ph\u00e1t tri\u1ec3n, c\u00e1c h\u1ec7 th\u1ed1ng m\u1eadt m\u00e3 hi\u1ec7n t\u1ea1i c\u00f3 th\u1ec3 tr\u1edf n\u00ean d\u1ec5 b\u1ecb t\u1ea5n c\u00f4ng, \u0111\u00f2i h\u1ecfi ph\u1ea3i ph\u00e1t tri\u1ec3n c\u00e1c thu\u1eadt to\u00e1n kh\u00e1ng l\u01b0\u1ee3ng t\u1eed m\u1edbi. M\u00e1y ch\u1ee7 CA s\u1ebd c\u1ea7n \u00e1p d\u1ee5ng c\u00e1c thu\u1eadt to\u00e1n n\u00e0y khi c\u1ea5p ch\u1ee9ng ch\u1ec9.<\/p>\n

        H\u01a1n n\u1eefa, s\u1ef1 ra \u0111\u1eddi c\u1ee7a c\u00e1c c\u00f4ng ngh\u1ec7 phi t\u1eadp trung nh\u01b0 blockchain c\u00f3 th\u1ec3 gi\u1edbi thi\u1ec7u nh\u1eefng c\u00e1ch m\u1edbi \u0111\u1ec3 qu\u1ea3n l\u00fd ni\u1ec1m tin v\u00e0 c\u1ea5p ch\u1ee9ng ch\u1ec9, t\u1ea1o ra con \u0111\u01b0\u1eddng ti\u1ec1m n\u0103ng cho s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a m\u00f4 h\u00ecnh CA truy\u1ec1n th\u1ed1ng.<\/p>\n

        M\u00e1y ch\u1ee7 c\u1ea5p ch\u1ee9ng ch\u1ec9 v\u00e0 m\u00e1y ch\u1ee7 proxy<\/h2>\n

        C\u00e1c m\u00e1y ch\u1ee7 proxy, gi\u1ed1ng nh\u01b0 c\u00e1c m\u00e1y ch\u1ee7 do OneProxy cung c\u1ea5p, ho\u1ea1t \u0111\u1ed9ng nh\u01b0 c\u00e1c trung gian gi\u1eefa m\u00e1y kh\u00e1ch v\u00e0 m\u00e1y ch\u1ee7. Khi n\u00f3i \u0111\u1ebfn k\u1ebft n\u1ed1i an to\u00e0n (HTTPS), m\u00e1y ch\u1ee7 proxy ch\u1ec9 c\u1ea7n chuy\u1ec3n ti\u1ebfp l\u01b0u l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a m\u00e0 kh\u00f4ng th\u1ec3 gi\u1ea3i m\u00e3 \u0111\u01b0\u1ee3c.<\/p>\n

        Vai tr\u00f2 c\u1ee7a m\u00e1y ch\u1ee7 CA trong qu\u00e1 tr\u00ecnh n\u00e0y l\u00e0 cung c\u1ea5p s\u1ef1 tin c\u1eady c\u1ea7n thi\u1ebft \u0111\u1ec3 thi\u1ebft l\u1eadp c\u00e1c k\u1ebft n\u1ed1i an to\u00e0n n\u00e0y. Khi m\u00e1y kh\u00e1ch y\u00eau c\u1ea7u k\u1ebft n\u1ed1i an to\u00e0n, m\u00e1y ch\u1ee7 m\u1ee5c ti\u00eau s\u1ebd cung c\u1ea5p ch\u1ee9ng ch\u1ec9 t\u1eeb CA, \u0111\u1ea3m b\u1ea3o cho m\u00e1y kh\u00e1ch r\u1eb1ng n\u00f3 \u0111ang li\u00ean l\u1ea1c v\u1edbi m\u00e1y ch\u1ee7 d\u1ef1 \u0111\u1ecbnh ch\u1ee9 kh\u00f4ng ph\u1ea3i k\u1ebb m\u1ea1o danh.<\/p>\n

        Do \u0111\u00f3, m\u1eb7c d\u00f9 ch\u00fang \u0111\u00f3ng nh\u1eefng vai tr\u00f2 kh\u00e1c nhau nh\u01b0ng c\u1ea3 m\u00e1y ch\u1ee7 proxy v\u00e0 m\u00e1y ch\u1ee7 CA \u0111\u1ec1u g\u00f3p ph\u1ea7n v\u00e0o s\u1ef1 b\u1ea3o m\u1eadt v\u00e0 quy\u1ec1n ri\u00eang t\u01b0 t\u1ed5ng th\u1ec3 c\u1ee7a ho\u1ea1t \u0111\u1ed9ng li\u00ean l\u1ea1c tr\u1ef1c tuy\u1ebfn.<\/p>\n

        Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n
          \n
        1. C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 (CA) l\u00e0 g\u00ec? \u2013 SSL.com<\/a><\/li>\n
        2. Ch\u1ee9ng ch\u1ec9 CA l\u00e0 g\u00ec? \u2013 T\u00e0i li\u1ec7u IBM<\/a><\/li>\n
        3. C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 - Wikipedia<\/a><\/li>\n
        4. C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng kh\u00f3a c\u00f4ng khai (PKI) \u2013 T\u00e0i nguy\u00ean Infosec<\/a><\/li>\n
        5. B\u1ea3o m\u1eadt web b\u1eb1ng HTTPS \u2013 Nh\u00e0 ph\u00e1t tri\u1ec3n Google<\/a><\/li>\n
        6. SSL\/TLS ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o? \u2013 \u0110\u00e1m m\u00e2y b\u00f9ng ph\u00e1t<\/a><\/li>\n
        7. Khong biet? \u2013 OneProxy<\/a><\/li>\n
        8. M\u1eadt m\u00e3 kh\u00f3a c\u00f4ng khai kh\u00e1ng l\u01b0\u1ee3ng t\u1eed: M\u1ed9t kh\u1ea3o s\u00e1t \u2013 Arxiv<\/a><\/li>\n
        9. Blockchain c\u00f3 th\u1ec3 ph\u00e1 v\u1ee1 ho\u1ea1t \u0111\u1ed9ng ng\u00e2n h\u00e0ng nh\u01b0 th\u1ebf n\u00e0o \u2013 CBInsights<\/a><\/li>\n<\/ol>","protected":false},"featured_media":476199,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476198","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about Certificate Authority Server: The Backbone of Online Trust<\/mark>","faq_items":[{"question":"What is a Certificate Authority Server?","answer":"

          A Certificate Authority server is a trusted entity responsible for issuing digital certificates. These certificates authenticate the identity of websites and ensure secure data transmission over the internet by establishing an encrypted connection.<\/p>"},{"question":"When and where did the concept of Certificate Authority Server originate?","answer":"

          The notion of a Certificate Authority first surfaced in the 1970s, coinciding with the birth of public-key cryptography. The first operational Certificate Authority was VeriSign, which began issuing certificates in 1995.<\/p>"},{"question":"What are the key functions of a Certificate Authority Server?","answer":"

          A Certificate Authority server performs three fundamental tasks: it verifies the identity of entities requesting certificates (domain validation), issues certificates, and keeps a record of the certificates it has issued and, in some cases, revoked.<\/p>"},{"question":"What are the key features of Certificate Authority Servers?","answer":"

          The fundamental features of Certificate Authority servers include trustworthiness, identity verification, certificate issuance, and certificate revocation.<\/p>"},{"question":"What are the types of Certificate Authorities?","answer":"

          There are generally two types of Certificate Authorities: Public CAs, which issue certificates for publicly accessible servers, and Private CAs, which are used within an organization for internal servers, users, and devices.<\/p>"},{"question":"What challenges can arise when using Certificate Authority Servers?","answer":"

          The primary challenge in using Certificate Authority servers is managing trust. Trusting a rogue or compromised CA can lead to severe security threats. Another challenge is the expiration of certificates, which must be renewed after a specific duration.<\/p>"},{"question":"How are Certificate Authority Servers evolving with future technologies?","answer":"

          The evolution of Certificate Authority servers is closely tied to the broader trends in cybersecurity and cryptography. A notable area of focus is quantum-resistant algorithms. Additionally, decentralized technologies like blockchain may introduce new ways of managing trust and issuing certificates.<\/p>"},{"question":"How do Certificate Authority Servers and Proxy Servers interact?","answer":"

          Proxy servers function as intermediaries between a client and a server. A CA server's role in this process is to provide the necessary trust for establishing secure connections. While they play different roles, both proxy servers and CA servers contribute to the overall security and privacy of online communications.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/476198","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\/476198\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/476199"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=476198"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}