{"id":597,"date":"2008-07-30T02:05:12","date_gmt":"2008-07-30T02:05:12","guid":{"rendered":"http:\/\/pchero21.com\/?p=597"},"modified":"2008-07-30T02:05:12","modified_gmt":"2008-07-30T02:05:12","slug":"ssl%ec%9d%98-%ea%b5%ac%ec%a1%b0","status":"publish","type":"post","link":"http:\/\/pchero21.com\/?p=597","title":{"rendered":"SSL\uc758 \uad6c\uc870"},"content":{"rendered":"

 * SSL\uc758 \uad6c\uc870
 SSL\uc740 \uac00\uc7a5 \ub2e4\uc591\ud55c \ubd84\uc57c\uc5d0\uc11c \uc801\uc6a9\ud558\uace0 \uc788\ub294 \uc554\ud638 \ud504\ub85c\ud1a0\ucf5c \uc911 \ud558\ub098\ub2e4. TCP\/IP\ub294 \uae30\ubcf8\uc801\uc73c\ub85c \ubcf4\uc548\uc744 \uace0\ub824\ud558\uc9c0 \uc54a\uc73c\ubbc0\ub85c \uc804\uc790\uc0c1\uac70\ub798\ub97c \ube44\ub86f\ud55c \ub2e4\uc591\ud55c \uc628\ub77c\uc778 \uc11c\ube44\uc2a4\ub97c \ud65c\uc131\ud654\ud558\ub824\uba74 \uc11c\ube44\uc2a4 \uc0c1\ud638\uac04\uc758 \uc778\uc99d, \uc554\ud638\uc640 \ud1b5\uc2e0\uc744 \ube44\ub86f\ud55c \ubb38\uc81c\uc810\uc744 \ud574\uacb0\ud574\uc57c \ud55c\ub2e4.<\/p>\n

 * SSL\uc758 \uac1c\ub150
 SSL\uc740 ‘Secure Socket Layer’\uc758 \uc57d\uc790\ub85c \ub137\uc2a4\ucf00\uc774\ud504(Netscape)\uc5d0\uc11c \ucc98\uc74c \uac1c\ubc1c\ud558\uc5ec \ub137\uc2a4\ucf00\uc774\ud504 \ub124\uc774\uac8c\uc774\ud130(Netscape Navigator)\uc5d0 \ucc98\uc74c \uc801\uc6a9\ud55c \ubcf4\uc548 \ud504\ub85c\ud1a0\ucf5c\uc774\ub2e4. \uae30\ubcf8\uc801\uc778 \uc544\uc774\ub514\uc5b4\ub294 \uae30\ubcf8\uc758 TCP\/IP\uc5d0\uc11c \uace0\ub824\ud558\uc9c0 \uc54a\uc740 \ubcf4\uc548 \uc138\uc158\uc744 \ucd94\uac00\ud558\uc5ec \ud1b5\uc2e0 \uc0c1\ud638 \uac04\uc758 \uc804\uc1a1 \uba54\uc2dc\uc9c0\uc5d0 \ub300\ud55c \uc554\ud638\ud654\uc640 \uc0c1\ud638 \uc778\uc99d\uc744 \uc218\ud589\ud558\ub294 \ud504\ub85c\ud1a0\ucf5c\uc774\ub2e4.<\/p>\n

\"\uc0ac\uc6a9\uc790
 \uadf8\ub9bc\uacfc \uac19\uc774 SSL\uc740 \uae30\uc874\uc758 TCP\/IP\uc5d0\uc11c \uc751\uc6a9 \uacc4\uce35\uacfc TCP \uacc4\uce35 \uc0ac\uc774\uc5d0 \ucd94\uac00\ub41c \ubcf4\uc548 \uacc4\uce35\uc73c\ub85c \ub3d9\uc791\ud55c\ub2e4. TCP \uacc4\uce35\uc740 \uc751\uc6a9 \uacc4\uce35\uc758 \ud504\ub85c\ud1a8 \uac04\uc758 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc704\ud558\uc5ec \uc18c\ucf13\uc744 \uc774\uc6a9\ud558\uba70, SSL\uc740 \uac01 \uc18c\ucf13\uc73c\ub85c \uc5f0\uacb0\ub41c \uc0c1\ud638 \uac04\uc758 \ud1b5\uc2e0 \ucc44\ub110\uc744 \uc548\uc804\ud558\uac8c \uad00\ub9ac\ud558\ub294 \uae30\ub2a5\uc744 \ud55c\ub2e4. \ud074\ub77c\uc774\uc5b8\ud2b8\uc640 \uc11c\ubc84 \uac04\uc758 \uc548\uc804\ud55c \ud1b5\uc2e0\uc744 \uc704\ud558\uc5ec SSL\uc740 \ub2e4\uc74c\uacfc \uac19\uc740 \uae30\ub2a5\uc744 \uc81c\uacf5\ud55c\ub2e4.<\/p>\n

==================================================================================================
\uae30\ub2a5            | \uc124\uba85
==================================================================================================
\uc0c1\ud638\uc778\uc99d       | \ud074\ub77c\uc774\uc5b8\ud2b8\/\uc11c\ubc84 \uac04\uc758 \uc778\uc99d\uc744 \uc704\ud55c \uc138\uc158 \ud0a4\ub97c \uc0dd\uc131\ud558\uace0 “Hello”\ub77c\ub294 \uba54\uc2dc\uc9c0\ub97c \uad50\ud658\ud568\uc73c\ub85c\uc368
                | \uc0c1\ud638 \uc778\uc99d\uc744 \ud55c\ub2e4.
————————————————————————————————–
\uae30\ubc00\uc131         | \uc804\uc1a1\ub418\ub294 \uba54\uc2dc\uc9c0\uc5d0 \ub300\ud55c \ub2e4\uc591\ud55c \ud615\uc2dd\uc758 \uc554\ud638\ud654\ub97c \ud1b5\ud574\uc11c \ud0c0\uc778\uc5d0\uac8c \uba54\uc2dc\uc9c0\uc758 \ub0b4\uc6a9\uc744 \ub178\ucd9c\ud558
                | \uc9c0 \uc54a\ub3c4\ub85d \ud55c\ub2e4.
————————————————————————————————–
\ubb34\uacb0\uc131         | \uc804\uc1a1 \uba54\uc2dc\uc9c0\uc758 \ubcc0\uc870\ub97c \ubc29\uc9c0\ud560 \uc218 \uc788\ub3c4\ub85d MD5\ub97c \ube44\ub86f\ud55c \uc54c\uace0\ub9ac\uc998\uc744 \uc774\uc6a9\ud558\uc5ec \uc804\uc790 \uc11c\uba85\uc744 \ud55c\ub2e4.
==================================================================================================<\/p>\n

 \uae30\ubc00\uc131\uc774\ub098 \ubb34\uacb0\uc131 \ub4f1\uc758 \uc554\ud638\ud559\uc801 \uae30\ub2a5\uc744 \uc81c\uacf5\ud558\uae30 \uc704\ud574\uc11c\ub294 \uad6d\uc81c\uc801\uc73c\ub85c \ud45c\uc900\ud654\ub418\uace0 \uc788\ub294 \uc554\ud638 \uc54c\uace0\ub9ac\uc998\uc758 \uc9c0\uc6d0\uc774 \ub530\ub77c\uc57c \ud55c\ub2e4. SSL\uc740 \ud45c\uc900\ud654\ub418\uc5b4 \uc788\ub294 \uc8fc\uc694 \uc554\ud638 \uc54c\uace0\ub9ac\uc998\uc744 \ube44\ub86f\ud558\uc5ec \ud604\uc7ac \uc8fc\ub85c \uc774\uc6a9\ud558\ub294 \ub2e4\uc591\ud55c \uc554\ud638 \uc54c\uace0\ub9ac\uc998\uc744 \uc9c0\uc6d0\ud558\uace0 \uc788\ub2e4.<\/p>\n

==================================================================================================
\uae30\ub2a5          | \uc801\uc6a9 \uc54c\uace0\ub9ac\uc998
==================================================================================================
\uae30\ubc00\uc131        | DES, 3DES, IDEA, RC2, RC4
————————————————————————————————–
\ubb34\uacb0\uc131        | MD5
————————————————————————————————–
\uc11c\ubc84 \uc778\uc99d     | RSA, X509
————————————————————————————————–
\ud074\ub77c\uc774\uc5b8\ud2b8 \uc778\uc99d | \ud604\uc7ac \ub300\ubd80\ubd84\uc758 \uc6f9 \ube0c\ub77c\uc6b0\uc800\uc5d0\uc11c \ud074\ub77c\uc774\uc5b8\ud2b8 \uc778\uc99d\uc744 \uc81c\uacf5\ud568
==================================================================================================<\/p>\n

 * SSL\uc758 \uad6c\uc870 \ubc0f \ud1b5\uc2e0 \uc808\ucc28
 SSL\uc740 \ub2e4\uc218\uc758 \ud504\ub85c\ud1a0\ucf5c\ub85c \uad6c\uc131\ub418\uc5b4 \uc788\ub294 \ud504\ub85c\ud1a0\ucf5c \uc9d1\ud569\uc774\ub77c\uace0 \ud560 \uc218 \uc788\uc73c\uba70, \ud328\ud0b7 \ubd84\ud560, \uc138\uc158 \uad00\ub9ac \ub4f1\uc758 \uae30\ubcf8\uc801\uc778 \ud1b5\uc2e0\uacfc \uad00\ub828\ub41c \ucc98\ub9ac\ub97c \uc218\ud589\ud558\ub294 \ubd80\ubd84\uacfc \ub370\uc774\ud130\uc758 \uc554\ud638\ud654, \ubcf5\ud638\ud654, \uba54\uc2dc\uc9c0 \uc778\uc99d \uac19\uc740 \ubcf4\uc548 \uc11c\ube44\uc2a4\ub97c \ub2f4\ub2f9\ud558\uace0 \uc788\ub294 \ubd80\ubd84\uc73c\ub85c \uad6c\ubd84\ud560 \uc218 \uc788\ub2e4.<\/p>\n

\"\uc0ac\uc6a9\uc790
 \uadf8\ub9bc\uc5d0\uc11c SSL \ud578\ub4dc\uc250\uc774\ud06c \ud504\ub85c\ud1a0\ucf5c, SSL \ubcc0\uacb8 \uc554\ud638 \uc2a4\ud399, SSL \uacbd\uace0 \ud504\ub85c\ud1a0\ucf5c\uc774 SSL\uc758 \uc138\uc158 \uad00\ub9ac \ubc0f \ub3d9\uc791\uc744 \ucc98\ub9ac\ud558\ub294 \ubd80\ubd84\uc774\uba70, \uba54\uc2dc\uc9c0\uc758 \uc554\ud638\ud654 \ubc0f \ubb34\uacb0\uc131 \ub4f1\uc758 \ubcf4\uc548 \uc11c\ube44\uc2a4\ub294 SSL \ub808\ucf54\ub4dc \ud504\ub85c\ud1a0\ucf5c\uc5d0\uc11c \ub2f4\ub2f9\ud55c\ub2e4.<\/p>\n

 * SSL \ud578\ub4dc\uc250\uc774\ud06c \ud504\ub85c\ud1a0\ucf5c
 \ud074\ub77c\uc774\uc5b8\ud2b8\uc640 \uc11c\ubc84 \uac04\uc758 \ud1b5\uc2e0\uc744 \uc218\ud589\ud558\uae30 \uc704\ud55c \uccab\ubc88\uc9f8 \ub2e8\uacc4\ub294 \uc0c1\ud638 \uac04\uc758 \ud1b5\uc2e0\uc744 \uc704\ud55c \uc138\uc158(Session)\uc744 \uc124\uc815\ud558\ub294 \uacfc\uc815\uc774\ub2e4. \uc138\uc158\uc740 \ub370\uc774\ud130 \uc804\uc1a1\uc744 \uc704\ud55c \ub17c\ub9ac\uc801\uc778 \uacbd\ub85c\ub85c, \uc2e4\uc81c\ub85c\ub294 \uc5ec\ub7ec \uac1c\uc758 \ucee4\ub125\uc158(Connection)\uc774 \ud3ec\ud568\uc774 \ub418\uc5b4 \ud074\ub77c\uc774\uc5b8\ud2b8\uc640 \uc11c\ubc84 \uac04\uc758 \ub17c\ub9ac\uc801\uc778 \uad00\uacc4\ub97c \ud45c\uc2dc\ud558\ub294 \uc815\ubcf4\ub97c \ud3ec\ud568\ud558\uace0 \uc788\ub2e4. SSL\uc5d0\uc11c \uc138\uc158 \uc0c1\ud0dc \uc5f0\uacb0\uc744 \uc218\ud589\ud558\ub294 \uac83\uc774 SSL \ud578\ub4dc\uc250\uc774\ud06c \ud504\ub85c\ud1a0\ucf5c(SSL Handshake Protocol)\uc774\uba70 \ud55c \uc138\uc158 \ub3d9\uc548 \uc774\uc6a9\ub418\ub294 \uc554\ud638 \ub9e4\uac1c \ubcc0\uc218\ub97c \uc0dd\uc131\ud558\uc5ec \ud074\ub77c\uc774\uc5b8\ud2b8\uc640 \uc11c\ubc84 \uac04\uc5d0 \uacf5\uc720\ud558\uae30 \uc704\ud574\uc11c \uc0ac\uc6a9\ud55c\ub2e4.<\/p>\n

 SSL \ud578\ub4dc\uc250\uc774\ud06c \ud504\ub85c\ud1a0\ucf5c\uc740 SSL \ub808\ucf54\ub4dc \ud504\ub85c\ud1a0\ucf5c(Record Protocol)\uc5d0 \uc758\ud574\uc11c \uba54\uc2dc\uc9c0\uc758 \uc1a1\uc218\uc2e0\uc744 \uc704\ud55c \uc791\uc5c5\ubcf4\ub2e4 \uba3c\uc800 \uc218\ud589\uc774 \ub418\uc5b4 \ub2e4\uc74c\uacfc \uac19\uc740 \uc138\uc158 \uc815\ubcf4\ub4e4\uc744 \uc0dd\uc131\ud558\uac8c \ub41c\ub2e4.<\/p>\n

 \uc138\uc158 \uc2dd\ubcc4\uc790(Session Identifier) : \ud65c\ub3d9 \ub610\ub294 \ubcf4\ub958 \uc911\uc778 \uc138\uc158\uc744 \uc2dd\ubcc4\ud558\uae30 \uc704\ud574\uc11c \uc11c\ubc84\uac00 \uc784\uc758\ub85c \uc124\uc815\ud55c \uc2dd\ubcc4\uc790
 \uc778\uc99d\uc11c(peer certification) : \uc11c\ubc84\uc640 \ud074\ub77c\uc774\uc5b8\ud2b8 \uc8fc\uccb4\uc758 X.509 \uc778\uc99d\uc11c
 Cipher Spec : \ub2e4\ub7c9\uc758 \ub370\uc774\ud130\uc5d0 \ub300\ud574 \uc218\ud589\ub418\ub294 \uc555\ucd95 \uc54c\uace0\ub9ac\uc998\uacfc MAC \uc54c\uace0\ub9ac\uc998\uc5d0 \ub300\ud55c \uaddc\uaca9
 \uc555\ucd95 \ubc29\ubc95(Compression method) : \uc554\ud638\ud654 \uc774\uc804\uc5d0 \ub370\uc774\ud130 \uc555\ucd95\uc744 \uc704\ud574 \uc0ac\uc6a9\ud558\ub294 \uc54c\uace0\ub9ac\uc998
 Master secret : \ud074\ub77c\uc774\uc5b8\ud2b8\uc640 \uc11c\ubc84 \uac04\uc5d0 \uacf5\uc720\ud558\ub294 48\ube44\ud2b8 \uae38\uc774\uc758 \ube44\ubc00 \uac12
 \uc7ac\uc0ac\uc6a9 \uc5ec\ubd80 : \uc138\uc158\uc774 \uc0c8\ub85c\uc6b4 \uc5f0\uacb0\uc5d0 \uc0ac\uc6a9 \uac00\ub2a5\ud55c\uc9c0 \uc5ec\ubd80\ub97c \ub098\ud0c0\ub0b4\ub294 \ud50c\ub798\uadf8<\/p>\n

 \uc138\uc158\uc774 \uc124\uc815\ub41c \ud6c4 \ud574\ub2f9 \uc138\uc158 \ub0b4\uc5d0 \uc218\ud589\ub418\ub294 \uac01 \ucee4\ub125\uc158\uc5d0\uc11c \uba54\uc2dc\uc9c0\ub294 \uc138\uc158 \uc815\ubcf4\uc758 Master secret\uacfc \ud074\ub77c\uc774\uc5b8\ud2b8\uc758 \ub09c\uc218\ub97c \ud1b5\ud574\uc11c \uac01 \ucee4\ub125\uc158\ub9c8\ub2e4 \ub2e4\ub974\uac8c \uc0dd\uc131\ub41c \ube44\ubc00 \ud0a4\uc5d0 \uc758\ud574\uc11c \uc554\ud638\ud654\ub41c\ub2e4. \ub530\ub77c\uc11c \uacf5\uaca9\uc790\ub294 \uc2a4\ub2c8\ud551\uc744 \ud1b5\ud574\uc11c \uc804\uc1a1 \ub0b4\uc6a9\uc744 \ub3c4\uccad\ud558\ub354\ub77c\ub3c4 \uc804\uc1a1\ub418\ub294 \uba54\uc2dc\uc9c0\ub97c \ubcf5\ud638\ud654\ud558\uae30 \uc704\ud55c \uc815\ubcf4\ub97c \uc5bb\uc5b4\ub0b4\uae30 \uc5b4\ub835\uac8c \ub41c\ub2e4.<\/p>\n

\"\uc0ac\uc6a9\uc790
  \uc138\uc158\uc744 \uc124\uc815\ud558\ub294 \uccab\ubc88\uc9f8 \ub2e8\uacc4\ub85c \ud074\ub77c\uc774\uc5b8\ud2b8\uc640 \uc11c\ubc84\ub294 Hello \uba54\uc2dc\uc9c0\ub97c \uad50\ud658\ud558\uba70, \uc774 \uacfc\uc815\uc744 \ud1b5\ud574\uc11c SSL \ud504\ub85c\ud1a0\ucf5c \ubcf4\uc874, \uc138\uc158 ID, \uc554\ud638 \uc54c\uace0\ub9ac\uc998, \uc555\ucd95 \ubc29\ubc95\uc744 \uc124\uc815\ud558\uace0 ClientHello.random\uacfc ServerHello.random\uc744 \uc0dd\uc131, \uad50\ud658\ud558\uac8c \ub41c\ub2e4. ClientHello \uba54\uc2dc\uc9c0\ub97c \ubc1b\uc740 \uc11c\ubc84\ub294 \ud074\ub77c\uc774\uc5b8\ud2b8\uc758 \uc778\uc99d\uc11c\ub97c \uc694\uad6c\ud560 \uc218 \uc788\uc73c\uba70, \uc774 \uacbd\uc6b0 \uc11c\ubc84 \uc790\uc2e0\uc758 \uc778\uc99d\uc11c\ub97c \ubcf4\ub0b4\uba70 \uadf8\ub807\uc9c0 \uc54a\uc744 \uacbd\uc6b0 ServerKeyExchange\ub97c \uc751\ub2f5\uc5d0 \ud3ec\ud568\ud558\uc5ec, CertificateRequest\ub97c \ubcf4\ub0b4\uace0, Hello \uc808\ucc28\uac00 \uc644\ub8cc\ub428\uc744 \uc54c\ub9ac\ub294 ServerHelloDone \uba54\uc2dc\uc9c0\ub97c \ud074\ub77c\uc774\uc5b8\ud2b8\ub85c \ubcf4\ub0b4\uc5b4 \uc751\ub2f5\ud55c\ub2e4.<\/p>\n

 \ud074\ub77c\uc774\uc5b8\ud2b8\ub294 Hello\uc5d0 \ub300\ud55c \uc751\ub2f5\uc744 \ubc1b\uc544\uc11c \ud074\ub77c\uc774\uc5b8\ud2b8\uc758 \uc778\uc99d\uc11c \ub610\ub294 ClientKeyExchange\uc640 \ud074\ub77c\uc774\uc5b8\ud2b8\uac00 \uc0ac\uc6a9\ud560 ChangeCipherSpec \uba54\uc2dc\uc9c0\ub97c \ubcf4\ub0b4\uace0 \ub4a4\uc774\uc5b4 CipherSpec\uc5d0 \ub9de\ucd94\uc5b4 \uc791\uc131\ub41c finished \uba54\uc2dc\uc9c0\ub97c \uc11c\ubc84\ub85c \ubcf4\ub0b8\ub2e4.<\/p>\n

\uc11c\ubc84\ub294 ChangeCipherSpec \uba54\uc2dc\uc9c0\uc640 \uc774\ub97c \uc774\uc6a9\ud574\uc11c \ub9cc\ub4e4\uc5b4\uc9c4 Finished \uba54\uc2dc\uc9c0\ub97c \ubc1b\uc740 \ud6c4 \uc11c\ubc84\uac00 \uc0ac\uc6a9\ud560 CihpherSpec\uc744 ChangeCipherSpec \uba54\uc2dc\uc9c0\uc640 Finished \uba54\uc2dc\uc9c0\ub97c \ubcf4\ub0b4\uace0 \uc774\ud6c4\uc5d0\ub294 \ud569\uc758\ub41c \ub0b4\uc6a9\uc73c\ub85c Application Data\uc758 \uad50\ud658\uc774 \uc774\ub8e8\uc5b4\uc9c0\uac8c \ub41c\ub2e4.<\/p>\n

 * \uc138\uc158(Session)\uacfc \ucee4\ub125\uc158(Connection)
 \ucee4\ub125\uc158\uc740 \uc2e4\uc81c\ub85c \ub370\uc774\ud130\uc774 \uc1a1 \uc218\uc2e0\uc774 \uc774\ub8e8\uc5b4\uc9c0\ub294 \ub2e8\uc704\ub97c \ub9d0\ud558\uba70, Peer-to-Peer \uad00\uacc4\uac00 \uc131\ub9bd\ud558\ub294 \uac1c\ub150\uc774\ub2e4. \uc774\uc5d0 \ube44\ud574\uc11c \uc138\uc158\uc740 \ub17c\ub9ac\uc801\uc778 \uac1c\ub150\uc5d0 \uac00\uae4c\uc6b0\uba70 \ucef4\ud4e8\ud130 \uc0ac\uc6a9 \uc2dc\ubd80\ud130 \uc885\ub8cc \uc2dc\uae4c\uc9c0\uc758 \uac1c\ub150\uc744 \ud3ec\ud568\ud55c\ub2e4. \uc2e4\uc81c\ub85c \ud55c \uc138\uc158\uc740 \uc5ec\ub7ec \ucee4\ub125\uc158\uc744 \ud3ec\ud568\ud560 \uc218 \uc788\ub2e4.<\/p>\n

 
 * SSL \ub808\ucf54\ub4dc \ud504\ub85c\ud1a0\ucf5c
 SSL \ub808\ucf54\ub4dc \ud504\ub85c\ud1a0\ucf5c\uc740 \uc0c1\ud638 \uc1a1\uc218\uc2e0\uc744 \uc704\ud55c \uc554\ud638\ud654 \uc2a4\ud399\uc774 SSL \ud578\ub4dc\uc250\uc774\ud06c \ud504\ub85c\ud1a0\ucf5c\uc5d0 \uc758\ud574 \uacf5\uc720\ub41c \ud6c4 \uc774\ub7ec\ud55c \uc2a4\ud399\uc5d0 \ub530\ub77c \uc2e4\uc81c\ub85c \uc804\uc1a1\ud558\ub294 \ub370\uc774\ud130\ub97c TCP \ud328\ud0b7\uc73c\ub85c \ubcc0\ud658\ud558\uae30 \uc704\ud55c \uae30\ub2a5\uc744 \uc218\ud589\ud55c\ub2e4. SSL \ub808\ucf54\ub4dc \ud504\ub85c\ud1a0\ucf5c\uc740 \uc774\ub97c \uc704\ud574 \uba3c\uc800 \uc804\uc1a1\ud558\ub294 \uba54\uc2dc\uc9c0\ub97c \uc77c\uc815\ud55c \ub2e8\uc704\uc758 \uc870\uac01\uc73c\ub85c \ubd84\ub9ac\ud558\ub294 Fragmentation, \ub808\ucf54\ub4dc \uc555\ucd95\uacfc \ud574\uc81c, \uba54\uc2dc\uc9c0 \uc778\uc99d \ubc0f \uc554\ud638\ud654, \ubcf5\ud638\ud654 \uae30\ub2a5\uc744 \uc218\ud589\ud55c\ub2e4.<\/p>\n

\"\uc0ac\uc6a9\uc790
 SSL \ub808\ucf54\ub4dc \ud504\ub85c\ud1a0\ucf5c\uc740 \uac01 \uba54\uc2dc\uc9c0\uc5d0 \ub300\ud574 \ub2e4\uc74c\uacfc \uac19\uc740 \uc808\ucc28\ub97c \ud1b5\ud574\uc11c \uc804\uc1a1\uc744 \uc218\ud589\ud55c\ub2e4. \uba3c\uc800 \uc804\uc1a1\ud560 \uba54\uc2dc\uc9c0\ub97c \uc77c\uc815\ud55c \ud06c\uae30\uc758 \ub808\ucf54\ub4dc \ud504\ub85c\ud1a0\ucf5c \uc720\ub2db(Record Protocol Unit)\uc73c\ub85c \ubd84\ud574\ud558\uace0, \uac01 \uc720\ub2db\uc744 SSL \ud578\ub4dc\uc250\uc774\ud06c \ud504\ub85c\ud1a0\ucf5c\ub85c \uc0ac\uc804\uc5d0 \ud611\uc758\ud55c \uaddc\uce59\uc5d0 \ub9de\uac8c \uc555\ucd95\ud55c\ub2e4. \ub2e4\uc74c\uc73c\ub85c \uc555\ucd95\ub41c \uc720\ub2db\ub9c8\ub2e4 \ud574\uc2dc\ub97c \uc774\uc6a9\ud55c MAC\uc744 \uc0dd\uc131\ud55c \ud6c4 \uc774\uac83\uc744 \ud3ec\ud568\ud558\uc5ec \uc554\ud638\ud654\ud55c \ud6c4 \uc804\uc1a1\ud55c\ub2e4.<\/p>\n

 \uc774 \uacfc\uc815\uc5d0\uc11c \uc0ac\uc804\uc5d0 \ud074\ub77c\uc774\uc5b8\ud2b8\uc640 \uc11c\ubc84 \uac04\uc5d0 \ud611\uc758\ud55c \uc2a4\ud399\uc5d0 \ub530\ub77c \uc554\ud638\ud654, MAC \uc0dd\uc131, \uc555\ucd95 \ubc29\uc2dd \ub4f1\uc744 \uc218\ud589\ud558\ubbc0\ub85c, \uba54\uc2dc\uc9c0\ub97c \uc218\uc2e0\ud55c \uce21\uc5d0\uc11c\ub3c4 \uc815\uc0c1\uc801\uc73c\ub85c \ud574\ub3c5\ud560 \uc218 \uc788\ub2e4.<\/p>\n

 * \ubcc0\uacbd \uc554\ud638 \uc2a4\ud399 \ud504\ub85c\ud1a0\ucf5c
 SSL \ubcc0\uacbd \uc554\ud638 \uc2a4\ud399(Change Cipher Spec) \uba54\uc2dc\uc9c0\ub294 \uc774\ud6c4\uc5d0 \uc804\uc1a1\ub418\ub294 \ub808\ucf54\ub4dc\uc5d0 \ub300\ud574\uc11c \uc554\ud638 \uc2a4\ucf01(Cipher Spec)\uc5d0 \uc815\uc758\ub41c \uc54c\uace0\ub9ac\uc998\uacfc \ud0a4\ub97c \uc774\uc6a9\ud574\uc11c \ubcf4\ud638\ud560 \uc218 \uc788\ub3c4\ub85d \uc218\uc2e0\uce21\uc5d0 \uc54c\ub824\uc8fc\ub294 \uc6a9\ub3c4\ub85c \uc0ac\uc6a9\ud55c\ub2e4. \uac04\ub2e8\ud788 \uc694\uc57d\ud558\uba74 \uc1a1\uc218\uc2e0\ud558\ub294 \ub370 \uc0ac\uc6a9\ud558\ub294 \uc554\ud638\ud654 \uc54c\uace0\ub9ac\uc998, MAC, \uc555\ucd95 \ubc29\uc2dd \ub4f1\uc744 \uc694\uc57d\ud558\uace0 \uc788\ub294 \uc554\ud638 \uc2a4\ud399\uc744 \ubcc0\uacbd\ud558\ub294 \ub370 \uc774\uc6a9\ud55c\ub2e4.<\/p>\n

 \ud074\ub77c\uc774\uc5b8\ud2b8\ub294 \ud0a4 \uad50\ud658 \uba54\uc2dc\uc9c0\uc640 \uc778\uc99d\uc11c \ud655\uc778 \uba54\uc2dc\uc9c0\ub97c \uc804\uc1a1\ud55c \ud6c4 \ubcf4\ub0b4\uba70, \uc11c\ubc84\ub294 \ud074\ub77c\uc774\uc5b8\ud2b8\uc5d0\uc11c \ubc1b\uc740 \ud0a4 \uad50\ud658 \uba54\uc2dc\uc9c0\ub97c \uc131\uacf5\uc801\uc73c\ub85c \ucc98\ub9ac\ud55c \ud6c4 \ubcf4\ub0b4\uac8c \ub41c\ub2e4.<\/p>\n

 * SSL \uacbd\uace0 \ud504\ub85c\ud1a0\ucf5c
 SSL \uacbd\uace0 \ud504\ub85c\ud1a0\ucf5c(SSL Alert Protocol)\uc740 SSL\uc758 \ub3d9\uc791 \uacfc\uc815\uc5d0\uc11c \ubc1c\uc0dd\ud560 \uc218 \uc788\ub294 \ubb38\uc81c \uc0c1\ud669\uc5d0 \ub300\ud574 \uacbd\uace0\ub97c \uc804\ub2ec\ud558\uae30 \uc704\ud574\uc11c \uc0ac\uc6a9\ud55c\ub2e4. \uc804\uc1a1\ud558\ub294 \uacbd\uace0 \uc815\ubcf4\ub294 SSL \uc2a4\ud399\uc5d0 \uc815\uc758\ub418\uc5b4 \uc788\ub294 \uce58\uba85\uc801\uc740 \uacbd\uace0 \ubaa9\ub85d\uacfc \uba54\uc2dc\uc9c0\uc758 \uc2ec\uac01\uc131\uc744 \ub098\ud0c0\ub0b4\ub294 2\ubc14\uc774\ud2b8 \ub370\uc774\ud130\ub85c \uad6c\uc131\ub41c\ub2e4.<\/p>\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

 * SSL\uc758 \uad6c\uc870 SSL\uc740 \uac00\uc7a5 \ub2e4\uc591\ud55c \ubd84\uc57c\uc5d0\uc11c \uc801\uc6a9\ud558\uace0 \uc788\ub294 \uc554\ud638 \ud504\ub85c\ud1a0\ucf5c \uc911 \ud558\ub098\ub2e4. TCP\/IP\ub294 \uae30\ubcf8\uc801\uc73c\ub85c \ubcf4\uc548\uc744 \uace0\ub824\ud558\uc9c0 \uc54a\uc73c\ubbc0\ub85c \uc804\uc790\uc0c1\uac70\ub798\ub97c \ube44\ub86f\ud55c \ub2e4\uc591\ud55c \uc628\ub77c\uc778 \uc11c\ube44\uc2a4\ub97c \ud65c\uc131\ud654\ud558\ub824\uba74 \uc11c\ube44\uc2a4 \uc0c1\ud638\uac04\uc758 \uc778\uc99d, \uc554\ud638\uc640 \ud1b5\uc2e0\uc744 \ube44\ub86f\ud55c \ubb38\uc81c\uc810\uc744 \ud574\uacb0\ud574\uc57c \ud55c\ub2e4.  * SSL\uc758 \uac1c\ub150 SSL\uc740 ‘Secure Socket Layer’\uc758 \uc57d\uc790\ub85c \ub137\uc2a4\ucf00\uc774\ud504(Netscape)\uc5d0\uc11c … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[48],"tags":[],"_links":{"self":[{"href":"http:\/\/pchero21.com\/index.php?rest_route=\/wp\/v2\/posts\/597"}],"collection":[{"href":"http:\/\/pchero21.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/pchero21.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/pchero21.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/pchero21.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=597"}],"version-history":[{"count":0,"href":"http:\/\/pchero21.com\/index.php?rest_route=\/wp\/v2\/posts\/597\/revisions"}],"wp:attachment":[{"href":"http:\/\/pchero21.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=597"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/pchero21.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=597"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/pchero21.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=597"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}