{"id":476008,"date":"2023-08-09T07:25:33","date_gmt":"2023-08-09T07:25:33","guid":{"rendered":""},"modified":"2023-09-05T11:11:49","modified_gmt":"2023-09-05T11:11:49","slug":"biba-model","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/biba-model\/","title":{"rendered":"Ng\u01b0\u1eddi m\u1eabu Biba"},"content":{"rendered":"

M\u00f4 h\u00ecnh Biba l\u00e0 m\u1ed9t tr\u1ee5 c\u1ed9t quan tr\u1ecdng trong l\u0129nh v\u1ef1c b\u1ea3o m\u1eadt m\u00e1y t\u00ednh. \u0110\u01b0\u1ee3c \u0111\u1eb7t theo t\u00ean c\u1ee7a nh\u00e0 ph\u00e1t minh Kenneth J. Biba, m\u00f4 h\u00ecnh n\u00e0y l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng chuy\u1ec3n \u0111\u1ed5i tr\u1ea1ng th\u00e1i ch\u00ednh th\u1ee9c c\u1ee7a ch\u00ednh s\u00e1ch b\u1ea3o m\u1eadt m\u00e1y t\u00ednh t\u1eadp trung v\u00e0o t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u. Kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1c m\u00f4 h\u00ecnh kh\u00e1c \u01b0u ti\u00ean t\u00ednh b\u1ea3o m\u1eadt, Biba Model nh\u1ea5n m\u1ea1nh vi\u1ec7c duy tr\u00ec t\u00ednh ch\u00ednh x\u00e1c c\u1ee7a th\u00f4ng tin v\u00e0 ng\u0103n ch\u1eb7n vi\u1ec7c s\u1eeda \u0111\u1ed5i d\u1eef li\u1ec7u tr\u00e1i ph\u00e9p.<\/p>\n

S\u1ef1 kh\u1edfi \u0111\u1ea7u v\u00e0 \u0111\u1ec1 c\u1eadp \u0111\u1ea7u ti\u00ean c\u1ee7a m\u00f4 h\u00ecnh Biba<\/h2>\n

M\u00f4 h\u00ecnh Biba l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t b\u1edfi Kenneth J. Biba v\u00e0o n\u0103m 1977 trong b\u00e0i b\u00e1o c\u1ee7a \u00f4ng c\u00f3 t\u1ef1a \u0111\u1ec1 \u201cNh\u1eefng c\u00e2n nh\u1eafc v\u1ec1 t\u00ednh to\u00e0n v\u1eb9n cho c\u00e1c h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh an to\u00e0n\u201d. M\u00f4 h\u00ecnh n\u00e0y l\u00e0 k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u c\u1ee7a Biba t\u1ea1i Vi\u1ec7n C\u00f4ng ngh\u1ec7 Massachusetts (MIT), n\u01a1i \u00f4ng x\u00e1c \u0111\u1ecbnh t\u1ea7m quan tr\u1ecdng c\u1ee7a t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u trong b\u1ea3o m\u1eadt m\u00e1y t\u00ednh.<\/p>\n

M\u00f4 h\u00ecnh b\u1ea3o m\u1eadt n\u00e0y mang t\u00ednh \u0111\u1ed9t ph\u00e1 v\u00e0o th\u1eddi \u0111i\u1ec3m \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u v\u00ec n\u00f3 mang l\u1ea1i s\u1ef1 \u0111\u1ed1i tr\u1ecdng v\u1edbi M\u00f4 h\u00ecnh Bell-LaPadula, m\u00f4 h\u00ecnh ch\u1ee7 y\u1ebfu t\u1eadp trung v\u00e0o b\u1ea3o m\u1eadt d\u1eef li\u1ec7u. M\u1eb7t kh\u00e1c, M\u00f4 h\u00ecnh Biba \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u.<\/p>\n

T\u00ecm hi\u1ec3u m\u00f4 h\u00ecnh Biba<\/h2>\n

M\u00f4 h\u00ecnh Biba l\u00e0 m\u1ed9t b\u1ed9 h\u01b0\u1edbng d\u1eabn ho\u1eb7c ch\u00ednh s\u00e1ch \u0111\u1ec3 b\u1ea3o v\u1ec7 t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u trong h\u1ec7 th\u1ed1ng. M\u00f4 h\u00ecnh n\u00e0y d\u1ef1a tr\u00ean hai nguy\u00ean t\u1eafc c\u01a1 b\u1ea3n: Thu\u1ed9c t\u00ednh to\u00e0n v\u1eb9n \u0111\u01a1n gi\u1ea3n v\u00e0 Thu\u1ed9c t\u00ednh to\u00e0n v\u1eb9n *- (sao).<\/p>\n

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    Thu\u1ed9c t\u00ednh to\u00e0n v\u1eb9n \u0111\u01a1n gi\u1ea3n<\/strong>: C\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 quy t\u1eafc "kh\u00f4ng \u0111\u1ecdc xu\u1ed1ng", thu\u1ed9c t\u00ednh n\u00e0y quy \u0111\u1ecbnh r\u1eb1ng ch\u1ee7 th\u1ec3 \u1edf m\u1ee9c to\u00e0n v\u1eb9n nh\u1ea5t \u0111\u1ecbnh kh\u00f4ng th\u1ec3 \u0111\u1ecdc \u0111\u1ed1i t\u01b0\u1ee3ng \u1edf m\u1ee9c to\u00e0n v\u1eb9n th\u1ea5p h\u01a1n. \u0110i\u1ec1u n\u00e0y ng\u0103n ch\u1eb7n d\u1eef li\u1ec7u kh\u00f4ng ch\u00ednh x\u00e1c ho\u1eb7c b\u1ecb h\u1ecfng l\u00e0m \u00f4 nhi\u1ec5m d\u1eef li\u1ec7u c\u00f3 t\u00ednh to\u00e0n v\u1eb9n cao h\u01a1n.<\/p>\n<\/li>\n

  2. \n

    Thu\u1ed9c t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a sao<\/strong>: Th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 quy t\u1eafc "kh\u00f4ng ghi l\u00ean", thu\u1ed9c t\u00ednh n\u00e0y c\u1ea5m m\u1ed9t ch\u1ee7 th\u1ec3 \u1edf m\u1ee9c to\u00e0n v\u1eb9n c\u1ee5 th\u1ec3 ghi v\u00e0o m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng \u1edf m\u1ee9c to\u00e0n v\u1eb9n cao h\u01a1n. Quy t\u1eafc n\u00e0y gi\u00fap ng\u0103n ch\u1eb7n m\u1ed9t c\u00e1 nh\u00e2n leo thang \u0111\u1eb7c quy\u1ec1n c\u1ee7a h\u1ecd b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i d\u1eef li\u1ec7u c\u00f3 t\u00ednh to\u00e0n v\u1eb9n cao h\u01a1n.<\/p>\n<\/li>\n<\/ol>\n

    Nh\u1eefng nguy\u00ean t\u1eafc n\u00e0y \u0111\u00f3ng vai tr\u00f2 l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a M\u00f4 h\u00ecnh Biba, t\u1eadp trung v\u00e0o vi\u1ec7c duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a d\u1eef li\u1ec7u \u0111\u1ed1i v\u1edbi t\u00ednh b\u1ea3o m\u1eadt ho\u1eb7c t\u00ednh kh\u1ea3 d\u1ee5ng.<\/p>\n

    Ho\u1ea1t \u0111\u1ed9ng b\u00ean trong c\u1ee7a m\u00f4 h\u00ecnh Biba<\/h2>\n

    Trong M\u00f4 h\u00ecnh Biba, m\u1ee9c to\u00e0n v\u1eb9n \u0111\u01b0\u1ee3c g\u00e1n cho c\u1ea3 ch\u1ee7 th\u1ec3 (th\u1ef1c th\u1ec3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 ng\u01b0\u1eddi d\u00f9ng ho\u1eb7c quy tr\u00ecnh) v\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng (th\u1ef1c th\u1ec3 th\u1ee5 \u0111\u1ed9ng nh\u01b0 t\u1ec7p ho\u1eb7c th\u01b0 m\u1ee5c). C\u00e1c m\u1ee9c to\u00e0n v\u1eb9n n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh xem m\u1ed9t ch\u1ee7 th\u1ec3 c\u1ee5 th\u1ec3 c\u00f3 th\u1ec3 truy c\u1eadp v\u00e0o m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ee5 th\u1ec3 hay kh\u00f4ng.<\/p>\n

    B\u1ea5t c\u1ee9 khi n\u00e0o m\u1ed9t ch\u1ee7 th\u1ec3 c\u1ed1 g\u1eafng \u0111\u1ecdc ho\u1eb7c ghi v\u00e0o m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng, M\u00f4 h\u00ecnh Biba s\u1ebd s\u1eed d\u1ee5ng hai nguy\u00ean t\u1eafc c\u1ee7a n\u00f3 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh xem ho\u1ea1t \u0111\u1ed9ng \u0111\u00f3 c\u00f3 \u0111\u01b0\u1ee3c ph\u00e9p hay kh\u00f4ng. M\u00f4 h\u00ecnh ng\u0103n ch\u1eb7n lu\u1ed3ng th\u00f4ng tin t\u1eeb m\u1ee9c to\u00e0n v\u1eb9n th\u1ea5p h\u01a1n \u0111\u1ebfn cao h\u01a1n, t\u1eeb \u0111\u00f3 duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n

    C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a M\u00f4 h\u00ecnh Biba<\/h2>\n

    C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a M\u00f4 h\u00ecnh Biba xoay quanh vi\u1ec7c nh\u1ea5n m\u1ea1nh v\u00e0o t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u v\u00e0 ki\u1ec3m so\u00e1t truy c\u1eadp kh\u00f4ng t\u00f9y \u00fd. Bao g\u1ed3m c\u00e1c:<\/p>\n

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      B\u1ea3o to\u00e0n t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u<\/strong>: M\u00f4 h\u00ecnh Biba \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ng\u0103n ch\u1eb7n vi\u1ec7c s\u1eeda \u0111\u1ed5i d\u1eef li\u1ec7u tr\u00e1i ph\u00e9p, \u0111\u1ea3m b\u1ea3o r\u1eb1ng th\u00f4ng tin lu\u00f4n ch\u00ednh x\u00e1c v\u00e0 \u0111\u00e1ng tin c\u1eady.<\/p>\n<\/li>\n

    2. \n

      Ng\u0103n ch\u1eb7n leo thang \u0111\u1eb7c quy\u1ec1n tr\u00e1i ph\u00e9p<\/strong>: Th\u00f4ng qua quy t\u1eafc \u201ckh\u00f4ng ghi l\u00ean\u201d, M\u00f4 h\u00ecnh Biba ng\u0103n ch\u1eb7n c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng thay \u0111\u1ed5i d\u1eef li\u1ec7u theo c\u00e1ch c\u00f3 th\u1ec3 l\u00e0m t\u0103ng \u0111\u1eb7c quy\u1ec1n h\u1ec7 th\u1ed1ng c\u1ee7a h\u1ecd.<\/p>\n<\/li>\n

    3. \n

      B\u1ea3o v\u1ec7 kh\u1ecfi tham nh\u0169ng d\u1eef li\u1ec7u<\/strong>: B\u1eb1ng c\u00e1ch ng\u0103n ch\u1eb7n c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u1ecdc d\u1eef li\u1ec7u c\u00f3 t\u00ednh to\u00e0n v\u1eb9n th\u1ea5p h\u01a1n, m\u00f4 h\u00ecnh n\u00e0y s\u1ebd b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u c\u00f3 t\u00ednh to\u00e0n v\u1eb9n cao h\u01a1n kh\u1ecfi nguy c\u01a1 b\u1ecb \u00f4 nhi\u1ec5m.<\/p>\n<\/li>\n<\/ol>\n

      C\u00e1c bi\u1ebfn th\u1ec3 c\u1ee7a m\u00f4 h\u00ecnh Biba<\/h2>\n

      M\u00f4 h\u00ecnh Biba c\u00f3 ba tri\u1ec3n khai ch\u00ednh:<\/p>\n

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        Ch\u00ednh s\u00e1ch li\u00eam ch\u00ednh nghi\u00eam ng\u1eb7t<\/strong>: Vi\u1ec7c tri\u1ec3n khai n\u00e0y \u00e1p d\u1ee5ng m\u1ed9t c\u00e1ch c\u1ee9ng nh\u1eafc c\u1ea3 Thu\u1ed9c t\u00ednh to\u00e0n v\u1eb9n \u0111\u01a1n gi\u1ea3n v\u00e0 to\u00e0n v\u1eb9n sao. Vi\u1ec7c th\u1ef1c thi nghi\u00eam ng\u1eb7t n\u00e0y t\u1ed1i \u0111a h\u00f3a t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a d\u1eef li\u1ec7u nh\u01b0ng c\u00f3 th\u1ec3 h\u1ea1n ch\u1ebf kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng.<\/p>\n<\/li>\n

      2. \n

        Ch\u00ednh s\u00e1ch m\u1ef1c n\u01b0\u1edbc th\u1ea5p<\/strong>: Theo c\u00e1ch ti\u1ebfp c\u1eadn linh ho\u1ea1t h\u01a1n n\u00e0y, m\u1ee9c \u0111\u1ed9 to\u00e0n v\u1eb9n hi\u1ec7n t\u1ea1i c\u1ee7a h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 gi\u1ea3m xu\u1ed1ng m\u1ee9c c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng th\u1ea5p nh\u1ea5t m\u00e0 ch\u1ee7 th\u1ec3 \u0111\u00e3 \u0111\u1ecdc. C\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y l\u00e0m t\u0103ng kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng nh\u01b0ng ph\u1ea3i tr\u1ea3 gi\u00e1 b\u1eb1ng kh\u1ea3 n\u0103ng vi ph\u1ea1m t\u00ednh to\u00e0n v\u1eb9n.<\/p>\n<\/li>\n

      3. \n

        Ch\u00ednh s\u00e1ch \u0111\u1ed5 chu\u00f4ng<\/strong>: Trong c\u00e1ch tri\u1ec3n khai n\u00e0y, h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c v\u00f2ng d\u1ef1a tr\u00ean m\u1ee9c \u0111\u1ed9 to\u00e0n v\u1eb9n. Ng\u01b0\u1eddi d\u00f9ng ch\u1ec9 c\u00f3 th\u1ec3 vi\u1ebft v\u00e0o v\u00f2ng c\u1ee7a h\u1ecd ho\u1eb7c c\u00e1c v\u00f2ng \u1edf d\u01b0\u1edbi m\u1ee9c hi\u1ec7n t\u1ea1i c\u1ee7a h\u1ecd v\u00e0 h\u1ecd c\u00f3 th\u1ec3 \u0111\u1ecdc t\u1eeb v\u00f2ng c\u1ee7a h\u1ecd v\u00e0 c\u00e1c v\u00f2ng \u1edf tr\u00ean ch\u00fang.<\/p>\n<\/li>\n<\/ol>\n

        M\u1ed7i c\u00e1ch tri\u1ec3n khai \u0111\u1ec1u \u0111\u01b0a ra s\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u nghi\u00eam ng\u1eb7t v\u00e0 kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng c\u1ee7a h\u1ec7 th\u1ed1ng, \u0111\u1ed3ng th\u1eddi vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa ch\u00fang t\u00f9y thu\u1ed9c v\u00e0o nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n

        \u00c1p d\u1ee5ng m\u00f4 h\u00ecnh Biba: Th\u00e1ch th\u1ee9c v\u00e0 gi\u1ea3i ph\u00e1p<\/h2>\n

        M\u00f4 h\u00ecnh Biba ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c t\u00ecnh hu\u1ed1ng m\u00e0 t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u l\u00e0 h\u1ebft s\u1ee9c quan tr\u1ecdng. N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ecdi m\u00f4i tr\u01b0\u1eddng \u0111i\u1ec7n to\u00e1n, bao g\u1ed3m m\u00e1y t\u00ednh \u0111\u1ec3 b\u00e0n truy\u1ec1n th\u1ed1ng, \u0111i\u1ec7n to\u00e1n d\u1ef1a tr\u00ean m\u00e1y ch\u1ee7 v\u00e0 m\u00f4i tr\u01b0\u1eddng \u0111\u00e1m m\u00e2y.<\/p>\n

        Tuy nhi\u00ean, gi\u1ed1ng nh\u01b0 b\u1ea5t k\u1ef3 m\u00f4 h\u00ecnh n\u00e0o, M\u00f4 h\u00ecnh Biba \u0111i k\u00e8m v\u1edbi nhi\u1ec1u th\u00e1ch th\u1ee9c. V\u00ed d\u1ee5: vi\u1ec7c tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u c\u00f3 th\u1ec3 h\u1ea1n ch\u1ebf kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng ho\u1eb7c ng\u0103n ch\u1eb7n vi\u1ec7c s\u1eeda \u0111\u1ed5i d\u1eef li\u1ec7u h\u1ee3p ph\u00e1p. Ngo\u00e0i ra, M\u00f4 h\u00ecnh Biba kh\u00f4ng \u0111\u1ec1 c\u1eadp \u0111\u1ebfn t\u00ednh b\u1ea3o m\u1eadt ho\u1eb7c t\u00ednh s\u1eb5n c\u00f3 c\u1ee7a d\u1eef li\u1ec7u, \u0111\u00e2y c\u00f3 th\u1ec3 l\u00e0 v\u1ea5n \u0111\u1ec1 quan tr\u1ecdng trong m\u1ed9t s\u1ed1 m\u00f4i tr\u01b0\u1eddng nh\u1ea5t \u0111\u1ecbnh.<\/p>\n

        Gi\u1ea3i ph\u00e1p cho nh\u1eefng th\u00e1ch th\u1ee9c n\u00e0y th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng M\u00f4 h\u00ecnh Biba k\u1ebft h\u1ee3p v\u1edbi c\u00e1c m\u00f4 h\u00ecnh ho\u1eb7c bi\u1ec7n ph\u00e1p ki\u1ec3m so\u00e1t kh\u00e1c nh\u1eb1m gi\u1ea3i quy\u1ebft c\u00e1c h\u1ea1n ch\u1ebf c\u1ee7a n\u00f3. V\u00ed d\u1ee5: m\u00f4 h\u00ecnh Clark-Wilson c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00f9ng v\u1edbi M\u00f4 h\u00ecnh Biba \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh b\u1ea3o m\u1eadt d\u1eef li\u1ec7u \u0111\u1ea7y \u0111\u1ee7.<\/p>\n

        So s\u00e1nh m\u00f4 h\u00ecnh Biba v\u1edbi c\u00e1c m\u00f4 h\u00ecnh t\u01b0\u01a1ng t\u1ef1<\/h2>\n

        M\u00f4 h\u00ecnh Biba th\u01b0\u1eddng \u0111\u01b0\u1ee3c so s\u00e1nh v\u1edbi c\u00e1c m\u00f4 h\u00ecnh b\u1ea3o m\u1eadt kh\u00e1c, ch\u1eb3ng h\u1ea1n nh\u01b0 M\u00f4 h\u00ecnh Bell-LaPadula v\u00e0 M\u00f4 h\u00ecnh Clark-Wilson. \u0110\u00e2y l\u00e0 m\u1ed9t so s\u00e1nh ng\u1eafn g\u1ecdn:<\/p>\n\n\n\n\n\n\n\n
        Ng\u01b0\u1eddi m\u1eabu<\/th>\nTr\u1ecdng t\u00e2m ch\u00ednh<\/th>\nNguy\u00ean t\u1eafc<\/th>\n<\/tr>\n<\/thead>\n
        Biba<\/td>\nTo\u00e0n v\u1eb9n d\u1eef li\u1ec7u<\/td>\nKh\u00f4ng \u0111\u1ecdc xu\u1ed1ng, kh\u00f4ng ghi l\u00ean<\/td>\n<\/tr>\n
        Chu\u00f4ng-LaPadula<\/td>\nB\u1ea3o m\u1eadt d\u1eef li\u1ec7u<\/td>\nKh\u00f4ng vi\u1ebft ra, Kh\u00f4ng \u0111\u1ecdc l\u00ean<\/td>\n<\/tr>\n
        Clark-Wilson<\/td>\nT\u00ednh to\u00e0n v\u1eb9n v\u00e0 b\u1ea3o m\u1eadt d\u1eef li\u1ec7u<\/td>\nQuy t\u1eafc ch\u1ee9ng nh\u1eadn v\u00e0 th\u1ef1c thi<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        M\u1ed7i m\u00f4 h\u00ecnh \u0111\u1ec1u c\u00f3 \u0111i\u1ec3m m\u1ea1nh v\u00e0 \u0111i\u1ec3m y\u1ebfu v\u00e0 th\u00f4ng th\u01b0\u1eddng, ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p \u0111\u1ec3 cung c\u1ea5p b\u1ea3o m\u1eadt d\u1eef li\u1ec7u to\u00e0n di\u1ec7n.<\/p>\n

        Vi\u1ec5n c\u1ea3nh t\u01b0\u01a1ng lai li\u00ean quan \u0111\u1ebfn m\u00f4 h\u00ecnh Biba<\/h2>\n

        V\u1edbi s\u1ef1 ph\u1ee9c t\u1ea1p ng\u00e0y c\u00e0ng t\u0103ng c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng k\u1ef9 thu\u1eadt s\u1ed1 v\u00e0 s\u1ef1 ch\u00fa tr\u1ecdng ng\u00e0y c\u00e0ng t\u0103ng v\u00e0o t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u, m\u1ee9c \u0111\u1ed9 li\u00ean quan c\u1ee7a M\u00f4 h\u00ecnh Biba d\u1ef1 ki\u1ebfn s\u1ebd t\u0103ng l\u00ean. Trong b\u1ed1i c\u1ea3nh c\u00e1c c\u00f4ng ngh\u1ec7 s\u1ed5 c\u00e1i ph\u00e2n t\u00e1n nh\u01b0 blockchain, v\u1ec1 c\u01a1 b\u1ea3n d\u1ef1a v\u00e0o t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u, c\u00e1c nguy\u00ean t\u1eafc c\u1ee7a M\u00f4 h\u00ecnh Biba c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y c\u00e1c \u1ee9ng d\u1ee5ng m\u1edbi.<\/p>\n

        Ngo\u00e0i ra, v\u1edbi vi\u1ec7c \u00e1p d\u1ee5ng Internet of Things (IoT) ng\u00e0y c\u00e0ng t\u0103ng, trong \u0111\u00f3 t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a d\u1eef li\u1ec7u thi\u1ebft b\u1ecb l\u00e0 r\u1ea5t quan tr\u1ecdng, c\u00e1c nguy\u00ean t\u1eafc c\u1ee7a M\u00f4 h\u00ecnh Biba c\u00f3 th\u1ec3 \u0111\u00f3ng vai tr\u00f2 l\u00e0 h\u01b0\u1edbng d\u1eabn \u0111\u1ec3 duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a d\u1eef li\u1ec7u trong c\u00e1c m\u00f4i tr\u01b0\u1eddng nh\u01b0 v\u1eady.<\/p>\n

        M\u00e1y ch\u1ee7 proxy v\u00e0 m\u00f4 h\u00ecnh Biba<\/h2>\n

        M\u00e1y ch\u1ee7 proxy ch\u1ee7 y\u1ebfu ho\u1ea1t \u0111\u1ed9ng nh\u01b0 trung gian cho c\u00e1c y\u00eau c\u1ea7u t\u1eeb kh\u00e1ch h\u00e0ng \u0111ang t\u00ecm ki\u1ebfm t\u00e0i nguy\u00ean t\u1eeb c\u00e1c m\u00e1y ch\u1ee7 kh\u00e1c, do \u0111\u00f3 th\u01b0\u1eddng x\u1eed l\u00fd v\u1ea5n \u0111\u1ec1 b\u1ea3o m\u1eadt d\u1eef li\u1ec7u. Tuy nhi\u00ean, h\u1ecd c\u0169ng c\u00f3 th\u1ec3 h\u01b0\u1edfng l\u1ee3i t\u1eeb c\u00e1c nguy\u00ean t\u1eafc c\u1ee7a M\u00f4 h\u00ecnh Biba trong vi\u1ec7c \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a d\u1eef li\u1ec7u m\u00e0 h\u1ecd x\u1eed l\u00fd.<\/p>\n

        V\u00ed d\u1ee5: m\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 tri\u1ec3n khai m\u1ed9t bi\u1ebfn th\u1ec3 c\u1ee7a M\u00f4 h\u00ecnh Biba \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c tr\u1ea3 v\u1ec1 m\u00e1y kh\u00e1ch kh\u00f4ng b\u1ecb gi\u1ea3 m\u1ea1o trong qu\u00e1 tr\u00ecnh truy\u1ec1n. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch trong c\u00e1c t\u00ecnh hu\u1ed1ng m\u00e0 m\u00e1y ch\u1ee7 proxy \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u01b0u v\u00e0o b\u1ed9 nh\u1edb \u0111\u1ec7m d\u1eef li\u1ec7u v\u00ec vi\u1ec7c duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c l\u01b0u trong b\u1ed9 nh\u1edb \u0111\u1ec7m l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft.<\/p>\n

        Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n

        \u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin chi ti\u1ebft v\u1ec1 M\u00f4 h\u00ecnh Biba, h\u00e3y tham kh\u1ea3o c\u00e1c t\u00e0i nguy\u00ean sau:<\/p>\n

          \n
        1. \u201cNh\u1eefng c\u00e2n nh\u1eafc v\u1ec1 t\u00ednh to\u00e0n v\u1eb9n cho h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh an to\u00e0n\u201d<\/a> \u2013 B\u00e0i vi\u1ebft g\u1ed1c c\u1ee7a Kenneth J. Biba<\/li>\n
        2. Ng\u01b0\u1eddi m\u1eabu Biba<\/a> \u2013 B\u1ea3ng ch\u00fa gi\u1ea3i thu\u1eadt ng\u1eef t\u1ea1i Vi\u1ec7n Ti\u00eau chu\u1ea9n v\u00e0 C\u00f4ng ngh\u1ec7 Qu\u1ed1c gia (NIST)<\/li>\n
        3. B\u1ea3o m\u1eadt m\u00e1y t\u00ednh<\/a> \u2013 B\u00e0i vi\u1ebft t\u1ed5ng h\u1ee3p v\u1ec1 b\u1ea3o m\u1eadt m\u00e1y t\u00ednh, trong \u0111\u00f3 c\u00f3 M\u00f4 h\u00ecnh Biba, t\u1ea1i ScienceDirect.<\/li>\n<\/ol>","protected":false},"featured_media":476009,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476008","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about Biba Model: Ensuring Information Integrity in Computer Security<\/mark>","faq_items":[{"question":"What is the Biba Model in computer security?","answer":"

          The Biba Model is a formal state transition system of computer security policy that focuses on ensuring data integrity. It was proposed by Kenneth J. Biba in 1977 and is designed to prevent unauthorized data modification, thereby ensuring the correctness and reliability of information in a system.<\/p>"},{"question":"Who proposed the Biba Model and when?","answer":"

          The Biba Model was proposed by Kenneth J. Biba, an MIT researcher, in 1977. It was presented in his paper titled \"Integrity Considerations for Secure Computer Systems.\"<\/p>"},{"question":"What are the primary principles of the Biba Model?","answer":"

          The Biba Model rests on two fundamental principles: the Simple Integrity Property and the Star Integrity Property. The Simple Integrity Property, or \"no read down\" rule, prevents a subject at a given integrity level from reading an object at a lower integrity level. The Star Integrity Property, or \"no write up\" rule, stops a subject at a specific integrity level from writing to an object at a higher integrity level.<\/p>"},{"question":"What are the key features of the Biba Model?","answer":"

          The key features of the Biba Model include the preservation of data integrity, prevention of unauthorized privilege escalation, and protection from data corruption.<\/p>"},{"question":"What are the types of Biba Model?","answer":"

          There are three primary implementations of the Biba Model: the Strict Integrity Policy, which rigidly applies both the Simple and Star Integrity Properties; the Low Water-Mark Policy, a flexible approach that adjusts the system's current integrity level; and the Ring Policy, which divides the system into rings based on integrity levels.<\/p>"},{"question":"What are the challenges in applying the Biba Model, and how can they be resolved?","answer":"

          One of the main challenges in applying the Biba Model is its strict adherence to data integrity, which can limit system usability. Additionally, it does not address data confidentiality or availability. These challenges can be resolved by using the Biba Model in conjunction with other models or controls that address its limitations, such as the Clark-Wilson model.<\/p>"},{"question":"How does the Biba Model compare to other similar models?","answer":"

          The Biba Model focuses on data integrity, compared to the Bell-LaPadula Model that prioritizes data confidentiality, and the Clark-Wilson Model that ensures both data integrity and confidentiality.<\/p>"},{"question":"What are the future perspectives related to the Biba Model?","answer":"

          The Biba Model is expected to gain more relevance with the growing complexity of digital systems and increased emphasis on data integrity. It may find new applications in technologies like blockchain and the Internet of Things (IoT), where device data integrity is crucial.<\/p>"},{"question":"How can proxy servers be associated with the Biba Model?","answer":"

          Proxy servers, while primarily dealing with data confidentiality, could also benefit from the principles of the Biba Model in ensuring the integrity of the data they handle. This could be particularly useful in scenarios where proxy servers are used for caching data, maintaining the integrity of cached data is essential.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/476008","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\/476008\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/476009"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=476008"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}