{"id":478278,"date":"2023-08-09T09:30:17","date_gmt":"2023-08-09T09:30:17","guid":{"rendered":""},"modified":"2023-09-05T11:16:27","modified_gmt":"2023-09-05T11:16:27","slug":"openssl","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/openssl\/","title":{"rendered":"OpenSSL"},"content":{"rendered":"

OpenSSL l\u00e0 th\u01b0 vi\u1ec7n ph\u1ea7n m\u1ec1m ngu\u1ed3n m\u1edf \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i, cung c\u1ea5p c\u00e1c ch\u1ee9c n\u0103ng m\u00e3 h\u00f3a v\u00e0 li\u00ean l\u1ea1c an to\u00e0n qua m\u1ea1ng m\u00e1y t\u00ednh. \u0110\u00e2y l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 thi\u1ebft y\u1ebfu \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o truy\u1ec1n, x\u00e1c th\u1ef1c v\u00e0 m\u00e3 h\u00f3a d\u1eef li\u1ec7u an to\u00e0n trong c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c nhau, bao g\u1ed3m m\u00e1y ch\u1ee7 web, m\u00e1y ch\u1ee7 email, VPN v\u00e0 m\u00e1y ch\u1ee7 proxy. OpenSSL \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t ph\u1ea7n c\u01a1 b\u1ea3n c\u1ee7a b\u1ea3o m\u1eadt internet hi\u1ec7n \u0111\u1ea1i, cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng v\u00e0 t\u1ed5 ch\u1ee9c b\u1ea3o v\u1ec7 th\u00f4ng tin nh\u1ea1y c\u1ea3m c\u1ee7a h\u1ecd v\u00e0 ch\u1ed1ng l\u1ea1i c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng \u0111\u1ed9c h\u1ea1i.<\/p>\n

L\u1ecbch s\u1eed ngu\u1ed3n g\u1ed1c c\u1ee7a OpenSSL v\u00e0 l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u1ec1 c\u1eadp \u0111\u1ebfn n\u00f3<\/h2>\n

Ngu\u1ed3n g\u1ed1c c\u1ee7a OpenSSL c\u00f3 th\u1ec3 b\u1eaft ngu\u1ed3n t\u1eeb \u0111\u1ea7u nh\u1eefng n\u0103m 1990 khi giao th\u1ee9c L\u1edbp c\u1ed5ng b\u1ea3o m\u1eadt (SSL) \u0111\u01b0\u1ee3c Netscape Communications Corporation ph\u00e1t tri\u1ec3n \u0111\u1ec3 cung c\u1ea5p l\u1edbp b\u1ea3o m\u1eadt \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u qua internet. N\u0103m 1998, L\u1ef1c l\u01b0\u1ee3ng \u0111\u1eb7c nhi\u1ec7m k\u1ef9 thu\u1eadt Internet (IETF) \u0111\u00e3 ti\u1ebfp qu\u1ea3n vi\u1ec7c ph\u00e1t tri\u1ec3n giao th\u1ee9c SSL v\u00e0 \u0111\u1ed5i t\u00ean n\u00f3 th\u00e0nh Transport Layer Security (TLS).<\/p>\n

OpenSSL n\u1ed5i l\u00ean nh\u01b0 m\u1ed9t tri\u1ec3n khai m\u00e3 ngu\u1ed3n m\u1edf c\u1ee7a c\u00e1c giao th\u1ee9c SSL\/TLS v\u00e0o n\u0103m 1998, \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1edfi m\u1ed9t nh\u00f3m nh\u1eefng ng\u01b0\u1eddi \u0111am m\u00ea m\u1eadt m\u00e3 nh\u1eb1m m\u1ee5c \u0111\u00edch cung c\u1ea5p th\u01b0 vi\u1ec7n m\u1eadt m\u00e3 c\u00f3 s\u1eb5n mi\u1ec5n ph\u00ed, m\u1ea1nh m\u1ebd v\u00e0 linh ho\u1ea1t cho c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n v\u00e0 qu\u1ea3n tr\u1ecb vi\u00ean h\u1ec7 th\u1ed1ng. Phi\u00ean b\u1ea3n \u0111\u1ea7u ti\u00ean c\u1ee7a th\u01b0 vi\u1ec7n, OpenSSL 0.9.0, \u0111\u01b0\u1ee3c ph\u00e1t h\u00e0nh v\u00e0o th\u00e1ng 3 n\u0103m 1999, \u0111\u00e1nh d\u1ea5u s\u1ef1 ra m\u1eaft ch\u00ednh th\u1ee9c c\u1ee7a OpenSSL v\u1edbi th\u1ebf gi\u1edbi.<\/p>\n

Th\u00f4ng tin chi ti\u1ebft v\u1ec1 OpenSSL. M\u1edf r\u1ed9ng ch\u1ee7 \u0111\u1ec1 OpenSSL<\/h2>\n

OpenSSL \u0111\u01b0\u1ee3c vi\u1ebft b\u1eb1ng ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh C v\u00e0 cung c\u1ea5p m\u1ed9t b\u1ed9 ch\u1ee9c n\u0103ng to\u00e0n di\u1ec7n \u0111\u1ec3 li\u00ean l\u1ea1c, m\u00e3 h\u00f3a v\u00e0 gi\u1ea3i m\u00e3 an to\u00e0n. N\u00f3 h\u1ed7 tr\u1ee3 m\u1ed9t lo\u1ea1t c\u00e1c thu\u1eadt to\u00e1n m\u00e3 h\u00f3a, l\u00e0m cho n\u00f3 r\u1ea5t linh ho\u1ea1t v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng th\u00edch \u1ee9ng v\u1edbi nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau. Th\u01b0 vi\u1ec7n \u0111a n\u1ec1n t\u1ea3ng v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u00ean c\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh kh\u00e1c nhau, bao g\u1ed3m Windows, Linux, macOS v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng t\u01b0\u01a1ng t\u1ef1 Unix kh\u00e1c nhau.<\/p>\n

C\u00e1c ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a OpenSSL bao g\u1ed3m:<\/p>\n

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  1. \n

    Truy\u1ec1n th\u00f4ng an to\u00e0n:<\/strong> OpenSSL cho ph\u00e9p li\u00ean l\u1ea1c an to\u00e0n b\u1eb1ng c\u00e1ch cung c\u1ea5p giao th\u1ee9c SSL\/TLS, \u0111\u1ea3m b\u1ea3o r\u1eb1ng d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n gi\u1eefa m\u00e1y kh\u00e1ch v\u00e0 m\u00e1y ch\u1ee7 v\u1eabn \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a v\u00e0 b\u1ea3o v\u1ec7 kh\u1ecfi b\u1ecb nghe l\u00e9n ho\u1eb7c gi\u1ea3 m\u1ea1o.<\/p>\n<\/li>\n

  2. \n

    M\u00e3 h\u00f3a v\u00e0 gi\u1ea3i m\u00e3:<\/strong> N\u00f3 h\u1ed7 tr\u1ee3 nhi\u1ec1u thu\u1eadt to\u00e1n m\u00e3 h\u00f3a kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 AES (Ti\u00eau chu\u1ea9n m\u00e3 h\u00f3a n\u00e2ng cao), DES (Ti\u00eau chu\u1ea9n m\u00e3 h\u00f3a d\u1eef li\u1ec7u) v\u00e0 RSA (Rivest\u2013Shamir\u2013Adleman), cho ph\u00e9p c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n tri\u1ec3n khai m\u00e3 h\u00f3a v\u00e0 gi\u1ea3i m\u00e3 d\u1eef li\u1ec7u an to\u00e0n trong \u1ee9ng d\u1ee5ng c\u1ee7a h\u1ecd.<\/p>\n<\/li>\n

  3. \n

    Ch\u1ee9ng ch\u1ec9 s\u1ed1 v\u00e0 C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng kh\u00f3a c\u00f4ng khai (PKI):<\/strong> OpenSSL t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho vi\u1ec7c qu\u1ea3n l\u00fd v\u00e0 x\u00e1c th\u1ef1c c\u00e1c ch\u1ee9ng ch\u1ec9 k\u1ef9 thu\u1eadt s\u1ed1, \u0111i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 thi\u1ebft l\u1eadp ni\u1ec1m tin gi\u1eefa c\u00e1c b\u00ean trong giao ti\u1ebfp an to\u00e0n.<\/p>\n<\/li>\n

  4. \n

    B\u0103m v\u00e0 t\u00f3m t\u1eaft tin nh\u1eafn:<\/strong> Th\u01b0 vi\u1ec7n bao g\u1ed3m c\u00e1c ch\u1ee9c n\u0103ng t\u1ea1o b\u0103m m\u1eadt m\u00e3 v\u00e0 t\u00f3m t\u1eaft th\u00f4ng b\u00e1o, ch\u1eb3ng h\u1ea1n nh\u01b0 MD5 v\u00e0 SHA-1, \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n v\u00e0 x\u00e1c th\u1ef1c c\u1ee7a d\u1eef li\u1ec7u.<\/p>\n<\/li>\n

  5. \n

    T\u1ea1o s\u1ed1 ng\u1eabu nhi\u00ean:<\/strong> OpenSSL cung c\u1ea5p kh\u1ea3 n\u0103ng t\u1ea1o s\u1ed1 ng\u1eabu nhi\u00ean an to\u00e0n, m\u1ed9t kh\u00eda c\u1ea1nh quan tr\u1ecdng c\u1ee7a ho\u1ea1t \u0111\u1ed9ng m\u00e3 h\u00f3a, \u0111\u1ea3m b\u1ea3o t\u00ednh kh\u00f4ng th\u1ec3 \u0111o\u00e1n tr\u01b0\u1edbc v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng m\u00e3 h\u00f3a.<\/p>\n<\/li>\n

  6. \n

    Giao th\u1ee9c m\u00e3 h\u00f3a:<\/strong> Ngo\u00e0i SSL\/TLS, OpenSSL c\u00f2n h\u1ed7 tr\u1ee3 c\u00e1c giao th\u1ee9c m\u1eadt m\u00e3 kh\u00e1c nh\u01b0 DTLS (B\u1ea3o m\u1eadt l\u1edbp truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u) v\u00e0 IPSec (B\u1ea3o m\u1eadt giao th\u1ee9c Internet).<\/p>\n<\/li>\n<\/ol>\n

    C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a OpenSSL. C\u00e1ch OpenSSL ho\u1ea1t \u0111\u1ed9ng<\/h2>\n

    C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a OpenSSL \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c th\u00e0nh nhi\u1ec1u th\u00e0nh ph\u1ea7n ch\u00ednh, m\u1ed7i th\u00e0nh ph\u1ea7n ch\u1ecbu tr\u00e1ch nhi\u1ec7m v\u1ec1 c\u00e1c ch\u1ee9c n\u0103ng c\u1ee5 th\u1ec3:<\/p>\n

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    1. \n

      Libcrypto:<\/strong> Th\u00e0nh ph\u1ea7n n\u00e0y t\u1ea1o th\u00e0nh c\u1ed1t l\u00f5i c\u1ee7a OpenSSL, cung c\u1ea5p c\u00e1c ch\u1ee9c n\u0103ng v\u00e0 thu\u1eadt to\u00e1n m\u00e3 h\u00f3a. N\u00f3 bao g\u1ed3m c\u00e1c m\u00f4-\u0111un \u0111\u1ec3 m\u00e3 h\u00f3a, b\u0103m, t\u1ea1o s\u1ed1 ng\u1eabu nhi\u00ean v\u00e0 ch\u1eef k\u00fd s\u1ed1.<\/p>\n<\/li>\n

    2. \n

      Th\u01b0 gi\u00e3n:<\/strong> Libssl l\u00e0 m\u00f4-\u0111un ch\u1ecbu tr\u00e1ch nhi\u1ec7m v\u1ec1 c\u00e1c giao th\u1ee9c SSL\/TLS, x\u1eed l\u00fd giao ti\u1ebfp an to\u00e0n gi\u1eefa m\u00e1y kh\u00e1ch v\u00e0 m\u00e1y ch\u1ee7. N\u00f3 cung c\u1ea5p c\u00e1c API \u0111\u1ec3 thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i an to\u00e0n v\u00e0 qu\u1ea3n l\u00fd c\u00e1c phi\u00ean SSL\/TLS.<\/p>\n<\/li>\n

    3. \n

      Tr\u00ecnh ph\u00e2n t\u00edch c\u00fa ph\u00e1p X.509:<\/strong> OpenSSL bao g\u1ed3m m\u1ed9t tr\u00ecnh ph\u00e2n t\u00edch c\u00fa ph\u00e1p cho ch\u1ee9ng ch\u1ec9 X.509, cho ph\u00e9p c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u1ecdc v\u00e0 gi\u1ea3i th\u00edch th\u00f4ng tin ch\u1ee9ng ch\u1ec9.<\/p>\n<\/li>\n

    4. \n

      T\u00f3m t\u1eaft BIO (\u0110\u1ea7u v\u00e0o\/\u0110\u1ea7u ra c\u01a1 b\u1ea3n):<\/strong> L\u1edbp tr\u1eebu t\u01b0\u1ee3ng BIO cung c\u1ea5p m\u1ed9t giao di\u1ec7n nh\u1ea5t qu\u00e1n \u0111\u1ec3 x\u1eed l\u00fd c\u00e1c ho\u1ea1t \u0111\u1ed9ng I\/O, cho ph\u00e9p OpenSSL ho\u1ea1t \u0111\u1ed9ng v\u1edbi nhi\u1ec1u ngu\u1ed3n d\u1eef li\u1ec7u v\u00e0 v\u00f9ng l\u01b0u tr\u1eef kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 \u1ed5 c\u1eafm, t\u1ec7p v\u00e0 b\u1ed9 nh\u1edb \u0111\u1ec7m.<\/p>\n<\/li>\n

    5. \n

      X\u1eed l\u00fd l\u1ed7i v\u00e0 ghi nh\u1eadt k\u00fd:<\/strong> OpenSSL k\u1ebft h\u1ee3p c\u01a1 ch\u1ebf x\u1eed l\u00fd l\u1ed7i m\u1ea1nh m\u1ebd, cho ph\u00e9p c\u00e1c \u1ee9ng d\u1ee5ng x\u1eed l\u00fd l\u1ed7i m\u1ed9t c\u00e1ch linh ho\u1ea1t v\u00e0 cung c\u1ea5p c\u00e1c th\u00f4ng b\u00e1o l\u1ed7i c\u00f3 \u00fd ngh\u0129a.<\/p>\n<\/li>\n<\/ol>\n

      Ph\u00e2n t\u00edch c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a OpenSSL<\/h2>\n

      OpenSSL cung c\u1ea5p m\u1ed9t s\u1ed1 t\u00ednh n\u0103ng ch\u00ednh khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn \u01b0u ti\u00ean c\u1ee7a c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n v\u00e0 qu\u1ea3n tr\u1ecb vi\u00ean h\u1ec7 th\u1ed1ng:<\/p>\n

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      1. \n

        Ngu\u1ed3n m\u1edf v\u00e0 h\u01b0\u1edbng \u0111\u1ebfn c\u1ed9ng \u0111\u1ed3ng:<\/strong> L\u00e0 m\u1ed9t d\u1ef1 \u00e1n ngu\u1ed3n m\u1edf, OpenSSL \u0111\u01b0\u1ee3c h\u01b0\u1edfng l\u1ee3i t\u1eeb c\u1ed9ng \u0111\u1ed3ng c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n l\u1edbn v\u00e0 t\u00edch c\u1ef1c, \u0111\u1ea3m b\u1ea3o c\u1ea3i ti\u1ebfn li\u00ean t\u1ee5c, s\u1eeda l\u1ed7i v\u00e0 c\u1eadp nh\u1eadt b\u1ea3o m\u1eadt.<\/p>\n<\/li>\n

      2. \n

        Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch \u0111a n\u1ec1n t\u1ea3ng:<\/strong> OpenSSL \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng li\u1ec1n m\u1ea1ch tr\u00ean c\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh v\u00e0 ki\u1ebfn tr\u00fac kh\u00e1c nhau, mang l\u1ea1i tr\u1ea3i nghi\u1ec7m nh\u1ea5t qu\u00e1n cho ng\u01b0\u1eddi d\u00f9ng b\u1ea5t k\u1ec3 m\u00f4i tr\u01b0\u1eddng c\u1ee7a h\u1ecd.<\/p>\n<\/li>\n

      3. \n

        \u00c1p d\u1ee5ng r\u1ed9ng r\u00e3i:<\/strong> Do t\u00ednh m\u1ea1nh m\u1ebd v\u00e0 linh ho\u1ea1t c\u1ee7a n\u00f3, OpenSSL \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u ng\u00e0nh kh\u00e1c nhau, bao g\u1ed3m ng\u00e2n h\u00e0ng, th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed, y t\u1ebf v\u00e0 ch\u00ednh ph\u1ee7, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh ti\u00eau chu\u1ea9n th\u1ef1c t\u1ebf cho li\u00ean l\u1ea1c an to\u00e0n.<\/p>\n<\/li>\n

      4. \n

        H\u1ed7 tr\u1ee3 c\u00e1c thu\u1eadt to\u00e1n m\u00e3 h\u00f3a hi\u1ec7n \u0111\u1ea1i:<\/strong> Th\u01b0 vi\u1ec7n lu\u00f4n \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt c\u00e1c ti\u00eau chu\u1ea9n m\u1eadt m\u00e3 m\u1edbi nh\u1ea5t, \u0111\u1ea3m b\u1ea3o h\u1ed7 tr\u1ee3 c\u00e1c thu\u1eadt to\u00e1n hi\u1ec7n \u0111\u1ea1i v\u00e0 duy tr\u00ec t\u00ednh b\u1ea3o m\u1eadt c\u1ee7a th\u00f4ng tin li\u00ean l\u1ea1c.<\/p>\n<\/li>\n

      5. \n

        C\u1ea5p ph\u00e9p:<\/strong> OpenSSL \u0111\u01b0\u1ee3c ph\u00e2n ph\u1ed1i theo Gi\u1ea5y ph\u00e9p Apache v1.1, cho ph\u00e9p s\u1eed d\u1ee5ng, s\u1eeda \u0111\u1ed5i v\u00e0 ph\u00e2n ph\u1ed1i mi\u1ec5n ph\u00ed \u0111\u1ed3ng th\u1eddi cho ph\u00e9p s\u1eed d\u1ee5ng th\u01b0\u01a1ng m\u1ea1i v\u00e0 phi th\u01b0\u01a1ng m\u1ea1i m\u00e0 kh\u00f4ng ph\u1ea3i tr\u1ea3 ph\u00ed gi\u1ea5y ph\u00e9p.<\/p>\n<\/li>\n

      6. \n

        Tu\u00e2n th\u1ee7 FIPS 140-2:<\/strong> OpenSSL cung c\u1ea5p ch\u1ebf \u0111\u1ed9 FIPS (Ti\u00eau chu\u1ea9n x\u1eed l\u00fd th\u00f4ng tin li\u00ean bang) cho ph\u00e9p tu\u00e2n th\u1ee7 c\u00e1c y\u00eau c\u1ea7u b\u1ea3o m\u1eadt do m\u1ed9t s\u1ed1 quy \u0111\u1ecbnh c\u1ee7a ch\u00ednh ph\u1ee7 v\u00e0 ng\u00e0nh quy \u0111\u1ecbnh.<\/p>\n<\/li>\n<\/ol>\n

        Vi\u1ebft subNh\u1eefng lo\u1ea1i OpenSSL t\u1ed3n t\u1ea1i. S\u1eed d\u1ee5ng b\u1ea3ng v\u00e0 danh s\u00e1ch \u0111\u1ec3 vi\u1ebft.<\/h2>\n

        OpenSSL ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi vi\u1ec7c cung c\u1ea5p th\u01b0 vi\u1ec7n v\u00e0 c\u00f4ng c\u1ee5 d\u00f2ng l\u1ec7nh \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u201copenssl\u201d cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng th\u1ef1c hi\u1ec7n nhi\u1ec1u ho\u1ea1t \u0111\u1ed9ng m\u00e3 h\u00f3a kh\u00e1c nhau. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c lo\u1ea1i OpenSSL ch\u00ednh:<\/p>\n

          \n
        1. \n

          Th\u01b0 vi\u1ec7n OpenSSL (Libcrypto):<\/strong> Th\u01b0 vi\u1ec7n c\u1ed1t l\u00f5i cung c\u1ea5p c\u00e1c ch\u1ee9c n\u0103ng v\u00e0 thu\u1eadt to\u00e1n m\u00e3 h\u00f3a, cho ph\u00e9p c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n tri\u1ec3n khai giao ti\u1ebfp v\u00e0 m\u00e3 h\u00f3a an to\u00e0n trong \u1ee9ng d\u1ee5ng c\u1ee7a h\u1ecd.<\/p>\n<\/li>\n

        2. \n

          C\u00f4ng c\u1ee5 d\u00f2ng l\u1ec7nh OpenSSL:<\/strong> C\u00f4ng c\u1ee5 d\u00f2ng l\u1ec7nh \u201copenssl\u201d l\u00e0 m\u1ed9t ti\u1ec7n \u00edch m\u1ea1nh m\u1ebd cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng th\u1ef1c hi\u1ec7n nhi\u1ec1u t\u00e1c v\u1ee5 m\u00e3 h\u00f3a kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u1ea1o c\u1eb7p kh\u00f3a, t\u1ea1o ch\u1ee9ng ch\u1ec9 v\u00e0 m\u00e3 h\u00f3a\/gi\u1ea3i m\u00e3 d\u1eef li\u1ec7u.<\/p>\n<\/li>\n

        3. \n

          Th\u01b0 vi\u1ec7n ph\u00e1t tri\u1ec3n OpenSSL:<\/strong> Ch\u00fang bao g\u1ed3m c\u00e1c t\u1ec7p ti\u00eau \u0111\u1ec1 v\u00e0 th\u01b0 vi\u1ec7n c\u1ea7n thi\u1ebft \u0111\u1ec3 c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n li\u00ean k\u1ebft \u1ee9ng d\u1ee5ng c\u1ee7a h\u1ecd v\u1edbi OpenSSL, cho ph\u00e9p t\u00edch h\u1ee3p li\u1ec1n m\u1ea1ch c\u00e1c kh\u1ea3 n\u0103ng m\u00e3 h\u00f3a.<\/p>\n<\/li>\n

        4. \n

          M\u00f4-\u0111un \u0111\u1ed1i t\u01b0\u1ee3ng OpenSSL FIPS:<\/strong> M\u00f4-\u0111un \u0111\u1ed1i t\u01b0\u1ee3ng FIPS l\u00e0 m\u1ed9t m\u00f4-\u0111un ri\u00eang bi\u1ec7t do OpenSSL cung c\u1ea5p v\u00e0 \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c FIPS 140-2. N\u00f3 cung c\u1ea5p m\u1ee9c \u0111\u1ed9 b\u1ea3o m\u1eadt cao h\u01a1n v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh c\u1ee5 th\u1ec3.<\/p>\n<\/li>\n<\/ol>\n

          Vi\u1ebft c\u00e1c c\u00e1ch con \u0111\u1ec3 s\u1eed d\u1ee5ng OpenSSL, 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

          OpenSSL c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng theo nhi\u1ec1u c\u00e1ch kh\u00e1c nhau tr\u00ean c\u00e1c \u1ee9ng d\u1ee5ng v\u00e0 ng\u00e0nh kh\u00e1c nhau. M\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n

            \n
          1. \n

            B\u1ea3o m\u1eadt m\u00e1y ch\u1ee7 web:<\/strong> OpenSSL \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i \u0111\u1ec3 b\u1ea3o m\u1eadt c\u00e1c m\u00e1y ch\u1ee7 web b\u1eb1ng c\u00e1ch k\u00edch ho\u1ea1t m\u00e3 h\u00f3a SSL\/TLS. N\u00f3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n gi\u1eefa m\u00e1y kh\u00e1ch v\u00e0 m\u00e1y ch\u1ee7 v\u1eabn \u0111\u01b0\u1ee3c gi\u1eef b\u00ed m\u1eadt v\u00e0 \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 kh\u1ecfi b\u1ecb ch\u1eb7n.<\/p>\n<\/li>\n

          2. \n

            M\u00e3 h\u00f3a m\u00e1y ch\u1ee7 email:<\/strong> Nhi\u1ec1u m\u00e1y ch\u1ee7 email s\u1eed d\u1ee5ng OpenSSL \u0111\u1ec3 tri\u1ec3n khai li\u00ean l\u1ea1c an to\u00e0n b\u1eb1ng SSL\/TLS, b\u1ea3o v\u1ec7 c\u00e1c email nh\u1ea1y c\u1ea3m v\u00e0 ng\u0103n ch\u1eb7n truy c\u1eadp tr\u00e1i ph\u00e9p.<\/p>\n<\/li>\n

          3. \n

            B\u1ea3o m\u1eadt VPN (M\u1ea1ng ri\u00eang \u1ea3o):<\/strong> OpenSSL \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong VPN, cung c\u1ea5p m\u00e3 h\u00f3a v\u00e0 x\u00e1c th\u1ef1c c\u1ea7n thi\u1ebft \u0111\u1ec3 b\u1ea3o m\u1eadt c\u00e1c k\u1ebft n\u1ed1i VPN v\u00e0 b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u nh\u1ea1y c\u1ea3m.<\/p>\n<\/li>\n

          4. \n

            Qu\u1ea3n l\u00fd ch\u1ee9ng ch\u1ec9 s\u1ed1:<\/strong> OpenSSL t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho vi\u1ec7c t\u1ea1o, k\u00fd v\u00e0 x\u00e1c minh ch\u1ee9ng ch\u1ec9 k\u1ef9 thu\u1eadt s\u1ed1, \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 thi\u1ebft l\u1eadp ni\u1ec1m tin v\u00e0 t\u00ednh x\u00e1c th\u1ef1c trong giao ti\u1ebfp an to\u00e0n.<\/p>\n<\/li>\n<\/ol>\n

            Tuy nhi\u00ean, gi\u1ed1ng nh\u01b0 b\u1ea5t k\u1ef3 ph\u1ea7n m\u1ec1m n\u00e0o, OpenSSL c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i m\u1ed9t s\u1ed1 th\u00e1ch th\u1ee9c v\u00e0 v\u1ea5n \u0111\u1ec1 nh\u1ea5t \u0111\u1ecbnh trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng. M\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn v\u00e0 gi\u1ea3i ph\u00e1p c\u1ee7a h\u1ecd bao g\u1ed3m:<\/p>\n

              \n
            1. \n

              L\u1ed7 h\u1ed5ng v\u00e0 b\u1ea3n v\u00e1 b\u1ea3o m\u1eadt:<\/strong> C\u00e1c l\u1ed7 h\u1ed5ng OpenSSL \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n \u0111\u1ecbnh k\u1ef3, th\u00fac \u0111\u1ea9y vi\u1ec7c ph\u00e1t h\u00e0nh c\u00e1c b\u1ea3n v\u00e1 b\u1ea3o m\u1eadt. \u0110\u1ec3 duy tr\u00ec t\u00ednh b\u1ea3o m\u1eadt, ng\u01b0\u1eddi d\u00f9ng ph\u1ea3i th\u01b0\u1eddng xuy\u00ean c\u1eadp nh\u1eadt l\u00ean phi\u00ean b\u1ea3n OpenSSL m\u1edbi nh\u1ea5t.<\/p>\n<\/li>\n

            2. \n

              Nh\u1eefng v\u1ea5n \u0111\u1ec1 t\u01b0\u01a1ng th\u00edch:<\/strong> C\u00e1c phi\u00ean b\u1ea3n OpenSSL kh\u00e1c nhau c\u00f3 th\u1ec3 \u0111\u01b0a ra nh\u1eefng thay \u0111\u1ed5i \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng hi\u1ec7n c\u00f3. Vi\u1ec7c ki\u1ec3m tra v\u00e0 qu\u1ea3n l\u00fd phi\u00ean b\u1ea3n ph\u00f9 h\u1ee3p l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 gi\u1ea3i quy\u1ebft nh\u1eefng lo ng\u1ea1i n\u00e0y.<\/p>\n<\/li>\n

            3. \n

              C\u00e2n nh\u1eafc v\u1ec1 hi\u1ec7u su\u1ea5t:<\/strong> C\u00e1c ho\u1ea1t \u0111\u1ed9ng m\u00e3 h\u00f3a do OpenSSL th\u1ef1c hi\u1ec7n c\u00f3 th\u1ec3 \u0111\u00f2i h\u1ecfi t\u00ednh to\u00e1n chuy\u00ean s\u00e2u, c\u00f3 kh\u1ea3 n\u0103ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t \u1ee9ng d\u1ee5ng. K\u1ef9 thu\u1eadt t\u1ed1i \u01b0u h\u00f3a v\u00e0 t\u0103ng t\u1ed1c ph\u1ea7n c\u1ee9ng c\u00f3 th\u1ec3 gi\u00fap gi\u1ea3m thi\u1ec3u t\u00e1c \u0111\u1ed9ng n\u00e0y.<\/p>\n<\/li>\n

            4. \n

              Qu\u1ea3n l\u00fd c\u1ea5u h\u00ecnh v\u00e0 ch\u1ee9ng ch\u1ec9:<\/strong> Qu\u1ea3n l\u00fd ch\u1ee9ng ch\u1ec9 v\u00e0 c\u1ea5u h\u00ecnh ph\u00f9 h\u1ee3p l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng an to\u00e0n c\u1ee7a c\u00e1c \u1ee9ng d\u1ee5ng. C\u1ea5u h\u00ecnh kh\u00f4ng \u0111\u00fang ho\u1eb7c ch\u1ee9ng ch\u1ec9 h\u1ebft h\u1ea1n c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt.<\/p>\n<\/li>\n<\/ol>\n

              Vi\u1ebft c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh c\u1ee7a subMain v\u00e0 c\u00e1c so s\u00e1nh kh\u00e1c v\u1edbi c\u00e1c thu\u1eadt ng\u1eef t\u01b0\u01a1ng t\u1ef1 d\u01b0\u1edbi d\u1ea1ng b\u1ea3ng v\u00e0 danh s\u00e1ch.<\/h2>\n

              \u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 OpenSSL v\u00e0 nh\u1eefng \u0111i\u1ec3m kh\u00e1c bi\u1ec7t c\u1ee7a n\u00f3, h\u00e3y so s\u00e1nh n\u00f3 v\u1edbi c\u00e1c thu\u1eadt ng\u1eef t\u01b0\u01a1ng t\u1ef1:<\/p>\n\n\n\n\n\n\n\n\n\n
              Thu\u1eadt ng\u1eef<\/th>\nS\u1ef1 mi\u00eau t\u1ea3<\/th>\nS\u1ef1 kh\u00e1c bi\u1ec7t so v\u1edbi OpenSSL<\/th>\n<\/tr>\n<\/thead>\n
              OpenSSL<\/td>\nTh\u01b0 vi\u1ec7n m\u1eadt m\u00e3 ngu\u1ed3n m\u1edf v\u00e0 c\u00f4ng c\u1ee5 d\u00f2ng l\u1ec7nh<\/td>\nCung c\u1ea5p m\u1ed9t lo\u1ea1t c\u00e1c ch\u1ee9c n\u0103ng v\u00e0 thu\u1eadt to\u00e1n m\u00e3 h\u00f3a, ph\u00f9 h\u1ee3p \u0111\u1ec3 b\u1ea3o m\u1eadt c\u00e1c \u1ee9ng d\u1ee5ng \u0111a d\u1ea1ng<\/td>\n<\/tr>\n
              GnuTLS<\/td>\nM\u1ed9t th\u01b0 vi\u1ec7n TLS m\u00e3 ngu\u1ed3n m\u1edf kh\u00e1c<\/td>\nGi\u1ed1ng nh\u01b0 OpenSSL, nh\u01b0ng c\u00f3 th\u1ec3 c\u00f3 c\u00e1c b\u1ed9 t\u00ednh n\u0103ng, c\u1ea5p ph\u00e9p v\u00e0 h\u1ed7 tr\u1ee3 c\u1ed9ng \u0111\u1ed3ng kh\u00e1c<\/td>\n<\/tr>\n
              Libnatri<\/td>\nTh\u01b0 vi\u1ec7n m\u1eadt m\u00e3 hi\u1ec7n \u0111\u1ea1i, d\u1ec5 s\u1eed d\u1ee5ng<\/td>\nT\u1eadp trung h\u01a1n v\u00e0o s\u1ef1 \u0111\u01a1n gi\u1ea3n v\u00e0 d\u1ec5 s\u1eed d\u1ee5ng, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n \u0111ang t\u00ecm ki\u1ebfm m\u00e3 h\u00f3a \u0111\u01a1n gi\u1ea3n<\/td>\n<\/tr>\n
              Nh\u00e0m ch\u00e1nSSL<\/td>\nM\u1ed9t nh\u00e1nh c\u1ee7a OpenSSL c\u1ee7a Google<\/td>\nNh\u1eb1m m\u1ee5c \u0111\u00edch \u0111\u01a1n gi\u1ea3n h\u00f3a m\u00e3, lo\u1ea1i b\u1ecf c\u00e1c t\u00ednh n\u0103ng kh\u00f4ng s\u1eed d\u1ee5ng v\u00e0 t\u1ed1i \u01b0u h\u00f3a cho c\u00e1c nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a Google<\/td>\n<\/tr>\n
              TLS \u0111\u01b0\u1ee3c nh\u00fang<\/td>\nTh\u01b0 vi\u1ec7n TLS cho h\u1ec7 th\u1ed1ng nh\u00fang<\/td>\n\u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 s\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng h\u1ea1n ch\u1ebf v\u1ec1 t\u00e0i nguy\u00ean, v\u1edbi y\u00eau c\u1ea7u x\u1eed l\u00fd v\u00e0 b\u1ed9 nh\u1edb nh\u1ecf h\u01a1n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              Vi\u1ebft c\u00e1c quan \u0111i\u1ec3m ph\u1ee5 v\u00e0 c\u00f4ng ngh\u1ec7 c\u1ee7a t\u01b0\u01a1ng lai li\u00ean quan \u0111\u1ebfn OpenSSL.<\/h2>\n

              T\u01b0\u01a1ng lai c\u1ee7a OpenSSL n\u1eafm gi\u1eef nh\u1eefng ti\u1ebfn b\u1ed9 \u0111\u1ea7y h\u1ee9a h\u1eb9n trong c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c nhau v\u1ec1 b\u1ea3o m\u1eadt internet v\u00e0 nghi\u00ean c\u1ee9u m\u1eadt m\u00e3. M\u1ed9t s\u1ed1 ph\u00e1t tri\u1ec3n ti\u1ec1m n\u0103ng bao g\u1ed3m:<\/p>\n

                \n
              1. \n

                M\u1eadt m\u00e3 h\u1eadu l\u01b0\u1ee3ng t\u1eed:<\/strong> Khi \u0111i\u1ec7n to\u00e1n l\u01b0\u1ee3ng t\u1eed ph\u00e1t tri\u1ec3n, c\u00e1c thu\u1eadt to\u00e1n m\u00e3 h\u00f3a truy\u1ec1n th\u1ed1ng c\u00f3 th\u1ec3 tr\u1edf n\u00ean d\u1ec5 b\u1ecb t\u1ea5n c\u00f4ng. OpenSSL c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1m ph\u00e1 v\u00e0 t\u00edch h\u1ee3p m\u1eadt m\u00e3 h\u1eadu l\u01b0\u1ee3ng t\u1eed \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng l\u01b0\u1ee3ng t\u1eed.<\/p>\n<\/li>\n

              2. \n

                Hi\u1ec7u su\u1ea5t n\u00e2ng cao:<\/strong> C\u00e1c phi\u00ean b\u1ea3n t\u01b0\u01a1ng lai c\u1ee7a OpenSSL c\u00f3 th\u1ec3 t\u1eadn d\u1ee5ng kh\u1ea3 n\u0103ng t\u0103ng t\u1ed1c ph\u1ea7n c\u1ee9ng, thu\u1eadt to\u00e1n \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a v\u00e0 k\u1ef9 thu\u1eadt x\u1eed l\u00fd song song \u0111\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t v\u00e0 gi\u1ea3m chi ph\u00ed t\u00ednh to\u00e1n c\u1ee7a c\u00e1c ho\u1ea1t \u0111\u1ed9ng m\u00e3 h\u00f3a.<\/p>\n<\/li>\n

              3. \n

                T\u0103ng c\u01b0\u1eddng an ninh:<\/strong> Nh\u1eefng n\u1ed7 l\u1ef1c nh\u1eb1m t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt c\u1ee7a OpenSSL v\u00e0 l\u00e0m cho n\u00f3 \u00edt b\u1ecb l\u1ed7 h\u1ed5ng h\u01a1n d\u1ef1 ki\u1ebfn s\u1ebd ti\u1ebfp t\u1ee5c. Ki\u1ec3m tra b\u1ea3o m\u1eadt th\u01b0\u1eddng xuy\u00ean v\u00e0 \u0111\u00e1nh gi\u00e1 m\u00e3 s\u1ebd r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a n\u00f3.<\/p>\n<\/li>\n

              4. \n

                Tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n:<\/strong> OpenSSL c\u00f3 kh\u1ea3 n\u0103ng theo k\u1ecbp c\u00e1c ti\u00eau chu\u1ea9n m\u1eadt m\u00e3 m\u1edbi nh\u1ea5t v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh ng\u00e0y c\u00e0ng ph\u00e1t tri\u1ec3n c\u1ee7a ng\u00e0nh \u0111\u1ec3 duy tr\u00ec m\u1ee9c \u0111\u1ed9 li\u00ean quan v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a n\u00f3.<\/p>\n<\/li>\n

              5. \n

                T\u00edch h\u1ee3p v\u1edbi c\u00f4ng ngh\u1ec7 m\u1edbi:<\/strong> Khi c\u00e1c c\u00f4ng ngh\u1ec7 v\u00e0 giao th\u1ee9c truy\u1ec1n th\u00f4ng m\u1edbi xu\u1ea5t hi\u1ec7n, OpenSSL d\u1ef1 ki\u1ebfn s\u1ebd th\u00edch \u1ee9ng v\u00e0 t\u00edch h\u1ee3p li\u1ec1n m\u1ea1ch v\u1edbi nh\u1eefng ph\u00e1t tri\u1ec3n n\u00e0y.<\/p>\n<\/li>\n<\/ol>\n

                Vi\u1ebft subC\u00e1ch s\u1eed d\u1ee5ng ho\u1eb7c li\u00ean k\u1ebft m\u00e1y ch\u1ee7 proxy v\u1edbi OpenSSL.<\/h2>\n

                M\u00e1y ch\u1ee7 proxy \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong b\u1ea3o m\u1eadt v\u00e0 quy\u1ec1n ri\u00eang t\u01b0 tr\u00ean internet. Ch\u00fang \u0111\u00f3ng vai tr\u00f2 trung gian gi\u1eefa m\u00e1y kh\u00e1ch v\u00e0 m\u00e1y ch\u1ee7, chuy\u1ec3n ti\u1ebfp y\u00eau c\u1ea7u v\u00e0 ph\u1ea3n h\u1ed3i trong khi \u1ea9n \u0111\u1ecba ch\u1ec9 IP c\u1ee7a m\u00e1y kh\u00e1ch. OpenSSL c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u1edbi m\u00e1y ch\u1ee7 proxy \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt theo nh\u1eefng c\u00e1ch sau:<\/p>\n

                  \n
                1. \n

                  Ch\u1ea5m d\u1ee9t SSL\/TLS:<\/strong> M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n ch\u1ea5m d\u1ee9t SSL\/TLS b\u1eb1ng OpenSSL, gi\u1ea3i m\u00e3 l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a \u0111\u1ebfn t\u1eeb m\u00e1y kh\u00e1ch, sau \u0111\u00f3 chuy\u1ec3n ti\u1ebfp c\u00e1c y\u00eau c\u1ea7u \u0111\u01b0\u1ee3c gi\u1ea3i m\u00e3 \u0111\u1ebfn m\u00e1y ch\u1ee7 m\u1ee5c ti\u00eau. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p proxy ki\u1ec3m tra v\u00e0 x\u1eed l\u00fd l\u01b0u l\u01b0\u1ee3ng tr\u01b0\u1edbc khi m\u00e3 h\u00f3a l\u1ea1i \u0111\u1ec3 li\u00ean l\u1ea1c an to\u00e0n v\u1edbi m\u00e1y ch\u1ee7.<\/p>\n<\/li>\n

                2. \n

                  Truy\u1ec1n d\u1eef li\u1ec7u an to\u00e0n:<\/strong> OpenSSL c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00e1y ch\u1ee7 proxy \u0111\u1ec3 thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i an to\u00e0n v\u1edbi m\u00e1y kh\u00e1ch v\u00e0 m\u00e1y ch\u1ee7. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n gi\u1eefa proxy v\u00e0 m\u00e1y kh\u00e1ch v\u1eabn \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a v\u00e0 b\u1ea3o v\u1ec7.<\/p>\n<\/li>\n

                3. \n

                  Qu\u1ea3n l\u00fd ch\u1ee9ng ch\u1ec9:<\/strong> M\u00e1y ch\u1ee7 proxy th\u01b0\u1eddng y\u00eau c\u1ea7u ch\u1ee9ng ch\u1ec9 X.509 \u0111\u1ec3 x\u00e1c th\u1ef1c v\u00e0 li\u00ean l\u1ea1c an to\u00e0n. OpenSSL c\u00f3 th\u1ec3 x\u1eed l\u00fd vi\u1ec7c t\u1ea1o, k\u00fd v\u00e0 x\u00e1c th\u1ef1c c\u00e1c ch\u1ee9ng ch\u1ec9 n\u00e0y, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady c\u1ee7a proxy.<\/p>\n<\/li>\n

                4. \n

                  Ho\u1ea1t \u0111\u1ed9ng m\u1eadt m\u00e3:<\/strong> M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 y\u00eau c\u1ea7u ch\u1ee9c n\u0103ng m\u00e3 h\u00f3a cho nhi\u1ec1u t\u00e1c v\u1ee5 kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u1ea1o m\u00e3 th\u00f4ng b\u00e1o b\u1ea3o m\u1eadt, t\u1ea1o ch\u1eef k\u00fd s\u1ed1 ho\u1eb7c m\u00e3 h\u00f3a d\u1eef li\u1ec7u nh\u1ea1y c\u1ea3m. Th\u01b0 vi\u1ec7n c\u1ee7a OpenSSL cung c\u1ea5p c\u00e1c ch\u1ee9c n\u0103ng n\u00e0y, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean ph\u00f9 h\u1ee3p t\u1ef1 nhi\u00ean v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng m\u00e1y ch\u1ee7 proxy.<\/p>\n<\/li>\n<\/ol>\n

                  Vi\u1ec7c k\u1ebft h\u1ee3p OpenSSL v\u00e0o c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u00e1y ch\u1ee7 proxy gi\u00fap t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt v\u00e0 cho ph\u00e9p li\u00ean l\u1ea1c \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a, b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u nh\u1ea1y c\u1ea3m \u0111\u1ed3ng th\u1eddi \u0111\u1ea3m b\u1ea3o quy\u1ec1n ri\u00eang t\u01b0 v\u00e0 \u1ea9n danh cho kh\u00e1ch h\u00e0ng.<\/p>\n

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

                  \u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 OpenSSL v\u00e0 c\u00e1ch s\u1eed d\u1ee5ng n\u00f3, vui l\u00f2ng tham kh\u1ea3o c\u00e1c t\u00e0i nguy\u00ean sau:<\/p>\n

                    \n
                  1. \n

                    Trang web ch\u00ednh th\u1ee9c c\u1ee7a OpenSSL<\/a>: Trang web ch\u00ednh th\u1ee9c cung c\u1ea5p t\u00e0i li\u1ec7u, n\u1ed9i dung t\u1ea3i xu\u1ed1ng v\u00e0 h\u1ed7 tr\u1ee3 c\u1ed9ng \u0111\u1ed3ng cho ng\u01b0\u1eddi d\u00f9ng OpenSSL.<\/p>\n<\/li>\n

                  2. \n

                    Kho l\u01b0u tr\u1eef OpenSSL GitHub<\/a>: Kho GitHub ch\u1ee9a m\u00e3 ngu\u1ed3n v\u00e0 cho ph\u00e9p c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n \u0111\u00f3ng g\u00f3p v\u00e0o s\u1ef1 ph\u00e1t tri\u1ec3n kh\u00f4ng ng\u1eebng c\u1ee7a OpenSSL.<\/p>\n<\/li>\n

                  3. \n

                    Nh\u00f3m l\u00e0m vi\u1ec7c IETF TLS<\/a>: Trang n\u00e0y cung c\u1ea5p t\u1eadp h\u1ee3p c\u00e1c t\u00e0i li\u1ec7u li\u00ean quan \u0111\u1ebfn giao th\u1ee9c TLS, bao g\u1ed3m c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 c\u1eadp nh\u1eadt m\u1edbi nh\u1ea5t.<\/p>\n<\/li>\n

                  4. \n

                    X\u00e1c th\u1ef1c FIPS 140-2<\/a>: \u0110\u1ec3 bi\u1ebft th\u00f4ng tin v\u1ec1 c\u00e1c m\u00f4-\u0111un \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c FIPS 140-2, bao g\u1ed3m M\u00f4-\u0111un \u0111\u1ed1i t\u01b0\u1ee3ng FIPS c\u1ee7a OpenSSL, h\u00e3y tham kh\u1ea3o trang web NIST CMVP.<\/p>\n<\/li>\n<\/ol>\n

                    T\u00f3m l\u1ea1i, OpenSSL l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a b\u1ea3o m\u1eadt internet, trao quy\u1ec1n cho c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n v\u00e0 qu\u1ea3n tr\u1ecb vi\u00ean h\u1ec7 th\u1ed1ng v\u1edbi m\u1ed9t b\u1ed9 c\u00f4ng c\u1ee5 v\u00e0 giao th\u1ee9c m\u00e3 h\u00f3a m\u1ea1nh m\u1ebd. B\u1ea3n ch\u1ea5t ngu\u1ed3n m\u1edf, t\u00ednh linh ho\u1ea1t v\u00e0 s\u1ef1 ph\u00e1t tri\u1ec3n li\u00ean t\u1ee5c c\u1ee7a n\u00f3 \u0111\u1ea3m b\u1ea3o t\u00ednh ph\u00f9 h\u1ee3p v\u00e0 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong c\u00e1c ng\u00e0nh kh\u00e1c nhau, khi\u1ebfn th\u1ebf gi\u1edbi k\u1ef9 thu\u1eadt s\u1ed1 tr\u1edf th\u00e0nh m\u1ed9t n\u01a1i an to\u00e0n v\u00e0 b\u1ea3o m\u1eadt h\u01a1n cho c\u1ea3 ng\u01b0\u1eddi d\u00f9ng v\u00e0 t\u1ed5 ch\u1ee9c.<\/p>","protected":false},"featured_media":469067,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-478278","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about OpenSSL: Secure Communication and Encryption Made Possible<\/mark>","faq_items":[{"question":"What is OpenSSL, and what does it do?","answer":"

                    OpenSSL is an open-source cryptographic library that provides secure communication, encryption, and decryption over computer networks. It offers a wide range of cryptographic functions and algorithms, making it an essential tool for ensuring data protection and security in various applications, including web servers, email servers, VPNs, and proxy servers.<\/p>"},{"question":"How did OpenSSL originate, and when was it first introduced?","answer":"

                    OpenSSL emerged in 1998 as an open-source implementation of the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols. It was developed by cryptography enthusiasts aiming to create a freely available, robust, and flexible cryptographic library. The library's first version, OpenSSL 0.9.0, was officially released in March 1999.<\/p>"},{"question":"What functionalities does OpenSSL offer?","answer":"

                    OpenSSL provides a broad set of functionalities, including secure communication using SSL\/TLS protocols, encryption and decryption with various algorithms like AES, DES, and RSA, managing digital certificates for authentication, generating cryptographic hashes, and secure random number generation.<\/p>"},{"question":"How does OpenSSL work internally?","answer":"

                    OpenSSL's internal structure consists of several components, including Libcrypto (the core cryptographic library), Libssl (handling SSL\/TLS protocols), X.509 Parser (for certificate management), BIO Abstraction (handling I\/O operations), and error handling mechanisms.<\/p>"},{"question":"What sets OpenSSL apart from similar cryptographic libraries?","answer":"

                    OpenSSL stands out due to its open-source nature, extensive community support, cross-platform compatibility, and support for a wide range of cryptographic algorithms. It is widely adopted in various industries, making it a de facto standard for secure communication.<\/p>"},{"question":"Are there different types of OpenSSL?","answer":"

                    Yes, OpenSSL comes in various forms. The main types include the OpenSSL library (Libcrypto) for cryptographic functions, the OpenSSL command-line tool, development libraries for integration, and the OpenSSL FIPS Object Module for FIPS 140-2 compliance.<\/p>"},{"question":"How can OpenSSL be used with proxy servers?","answer":"

                    OpenSSL enhances proxy server security by enabling SSL\/TLS termination, secure data transmission, certificate management, and cryptographic operations. It ensures encrypted communication and data protection between clients and servers.<\/p>"},{"question":"What challenges might arise when using OpenSSL?","answer":"

                    Users may face vulnerabilities that require security patches, compatibility issues with different versions, and potential performance impact due to computationally intensive cryptographic operations. Proper configuration and certificate management are also critical for secure operation.<\/p>"},{"question":"What does the future hold for OpenSSL?","answer":"

                    The future of OpenSSL includes advancements in post-quantum cryptography, enhanced performance, security hardening, adherence to new cryptographic standards, and seamless integration with emerging technologies.<\/p>"},{"question":"Where can I find more information about OpenSSL?","answer":"

                    For more information and resources about OpenSSL, visit the official OpenSSL website, explore the GitHub repository for source code and contributions, check out the IETF TLS Working Group for TLS-related documents, and learn about FIPS 140-2 validated modules on the NIST CMVP website.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/478278","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\/478278\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/469067"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=478278"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}