{"id":118,"date":"2025-07-16T15:11:09","date_gmt":"2025-07-16T06:11:09","guid":{"rendered":"http:\/\/34.64.61.65\/?p=118"},"modified":"2025-07-16T15:11:09","modified_gmt":"2025-07-16T06:11:09","slug":"%ec%9b%b9-%ea%b0%9c%eb%b0%9c-%ea%b0%9c%eb%85%90-%ec%a0%95%eb%a6%ac","status":"publish","type":"post","link":"https:\/\/hed-g.me\/?p=118","title":{"rendered":"\uc6f9 \uac1c\ubc1c \uac1c\ub150 \uc815\ub9ac"},"content":{"rendered":"\n<h1 class=\"wp-block-heading is-style-text-subtitle is-style-text-subtitle--1\">\uc8fc\ub2c8\uc5b4 \uac1c\ubc1c\uc790\ub97c \uc704\ud55c \uc6f9 \uac1c\ubc1c \uae30\ucd08:<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">I. \ud575\uc2ec CS \uc9c0\uc2dd<\/h2>\n\n\n\n<p>\uac1c\ubc1c\uc790\ub85c\uc11c \ud0c4\ud0c4\ud55c \uae30\ubcf8\uae30\ub97c \uc313\uae30 \uc704\ud574 \ubc18\ub4dc\uc2dc \uc54c\uc544\uc57c \ud560 \ud575\uc2ec \ucef4\ud4e8\ud130 \uacfc\ud559(CS) \uc9c0\uc2dd\uc744 \uc815\ub9ac\ud574\ubcf8\ub2e4. \ubcf5\uc7a1\ud55c \uac1c\ub150\uc744 \uba85\ud655\ud558\uace0 \uc9c1\uc811\uc801\uc778 \uc124\uba85\uc73c\ub85c \ud480\uc5b4\ub0b4\uace0\uc790 \ud55c\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. \ud504\ub85c\uadf8\ub7a8, \ud504\ub85c\uc138\uc2a4, \ud504\ub85c\uc138\uc11c, \uadf8\ub9ac\uace0 \uc2a4\ub808\ub4dc<\/h3>\n\n\n\n<p>\ucef4\ud4e8\ud130 \uc791\ub3d9\uc758 \uae30\ubcf8 \ub2e8\uc704\uc778 \ud504\ub85c\uadf8\ub7a8, \ud504\ub85c\uc138\uc2a4, \ud504\ub85c\uc138\uc11c, \uc2a4\ub808\ub4dc\uc758 \uac1c\ub150\uc744 \uba85\ud655\ud788 \uc815\uc758\ud558\uace0 \uadf8 \uad00\uacc4\ub97c \uc124\uba85\ud55c\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>\ud504\ub85c\uadf8\ub7a8 (Program): \uc815\uc801\uc778 \uba85\ub839\uc5b4 \uc9d1\ud569<\/strong><br><br>\ud504\ub85c\uadf8\ub7a8\uc774\ub780 \ud2b9\uc815 \uc791\uc5c5\uc744 \uc218\ud589\ud558\uae30 \uc704\ud574 \uc791\uc131\ub41c \ucf54\ub4dc\uc640 \uba85\ub839\uc5b4\uc758 \uc9d1\ud569\uc774\ub2e4. \ucef4\ud30c\uc77c \uacfc\uc815\uc744 \uac70\uccd0 \uc2e4\ud589 \uac00\ub2a5\ud55c \ud30c\uc77c \ud615\ud0dc\ub85c \ud558\ub4dc \ub514\uc2a4\ud06c\ub098 SSD \uac19\uc740 \ubcf4\uc870\uae30\uc5b5\uc7a5\uce58\uc5d0 \uc800\uc7a5\ub418\uc5b4 \uc788\ub294 &#8216;\uc815\uc801\uc778(static)&#8217; \uc0c1\ud0dc\ub2e4. \uc989, \uc544\uc9c1 \uc2e4\ud589\ub418\uc9c0 \uc54a\uace0 \uc800\uc7a5\ub9cc \ub418\uc5b4 \uc788\ub294 \ucf54\ub4dc \ub369\uc5b4\ub9ac \uadf8 \uc790\uccb4\ub97c \uc758\ubbf8\ud55c\ub2e4.<\/p><\/li>\n\n\n\n<li><p><strong>\ud504\ub85c\uc138\uc2a4 (Process): \uc2e4\ud589 \uc911\uc778 \ud504\ub85c\uadf8\ub7a8<\/strong><br><br>\ud504\ub85c\uc138\uc2a4\ub780 \ubcf4\uc870\uae30\uc5b5\uc7a5\uce58\uc5d0 \uc788\ub358 \ud504\ub85c\uadf8\ub7a8\uc774 \uc2e4\ud589\uc744 \uc704\ud574 \uba54\ubaa8\ub9ac(RAM)\uc5d0 \uc801\uc7ac(loading)\ub418\uc5b4, \uc6b4\uc601\uccb4\uc81c(OS)\ub85c\ubd80\ud130 \uc2dc\uc2a4\ud15c \uc790\uc6d0(CPU \uc2dc\uac04, \uba54\ubaa8\ub9ac \ub4f1)\uc744 \ud560\ub2f9\ubc1b\uc740 &#8216;\ub3d9\uc801\uc778(dynamic)&#8217; \uc0c1\ud0dc\ub97c \ub9d0\ud55c\ub2e4. \uac04\ub2e8\ud788 \ub9d0\ud574, &#8216;\uc2e4\ud589 \uc911\uc778 \ud504\ub85c\uadf8\ub7a8&#8217;\uc774 \ubc14\ub85c \ud504\ub85c\uc138\uc2a4\ub2e4. \ud558\ub098\uc758 \ud504\ub85c\uadf8\ub7a8\uc73c\ub85c \uc5ec\ub7ec \uac1c\uc758 \ud504\ub85c\uc138\uc2a4\ub97c \uc0dd\uc131\ud560 \uc218 \uc788\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ud06c\ub86c \ube0c\ub77c\uc6b0\uc800 \ud504\ub85c\uadf8\ub7a8\uc744 \uc5ec\ub7ec \uac1c \uc2e4\ud589\ud558\uba74 \uac01 \ucc3d\uc774 \ub3c5\ub9bd\uc801\uc778 \ud504\ub85c\uc138\uc2a4\ub85c \ub3d9\uc791\ud55c\ub2e4.<\/p><p>\ud504\ub85c\uc138\uc2a4\ub294 \uc6b4\uc601\uccb4\uc81c\uac00 \uad00\ub9ac\ud558\ub294 \uc791\uc5c5\uc758 \ucd5c\uc18c \ub2e8\uc704\uc774\uba70, \uace0\uc720\ud55c \uc0dd\uba85\uc8fc\uae30(Process State)\ub97c \uac00\uc9c4\ub2e4. \ud504\ub85c\uc138\uc2a4\ub294 \uc0dd\uc131(Create)\ub418\uc5b4 CPU\ub97c \ud560\ub2f9\ubc1b\uae30 \uc704\ud574 \ub300\uae30\ud558\ub294 &#8216;\uc900\ube44(Ready)&#8217; \uc0c1\ud0dc, CPU\ub97c \uc810\uc720\ud558\uc5ec \ucf54\ub4dc\ub97c \uc2e4\ud589\ud558\ub294 &#8216;\uc2e4\ud589(Running)&#8217; \uc0c1\ud0dc, I\/O \uc791\uc5c5 \ub4f1\uc744 \uae30\ub2e4\ub9ac\uba70 \uc7a0\uc2dc \uc2e4\ud589\uc744 \uba48\ucd98 &#8216;\ub300\uae30(Waiting)&#8217; \uc0c1\ud0dc\ub97c \uac70\uce58\uba70, \uc2e4\ud589\uc774 \uc644\ub8cc\ub418\uba74 &#8216;\uc885\ub8cc(Terminated)&#8217; \uc0c1\ud0dc\uac00 \ub418\uc5b4 \ubaa8\ub4e0 \uc790\uc6d0\uc744 \uc2dc\uc2a4\ud15c\uc5d0 \ubc18\ub0a9\ud55c\ub2e4. \uc6b4\uc601\uccb4\uc81c\ub294 \uc774\ub7ec\ud55c \ud504\ub85c\uc138\uc2a4\ub4e4\uc758 \uc0c1\ud0dc\ub97c \uad00\ub9ac\ud558\uba70 \uc2dc\uc2a4\ud15c \uc790\uc6d0\uc744 \ud6a8\uc728\uc801\uc73c\ub85c \uc2a4\ucf00\uc904\ub9c1\ud55c\ub2e4.<\/p><\/li>\n\n\n\n<li><p><strong>\ud504\ub85c\uc138\uc11c (Processor\/CPU): \uba85\ub839\uc5b4 \uc2e4\ud589 \uc8fc\uccb4<\/strong><br><br>\ud504\ub85c\uc138\uc11c\ub294 \uc911\uc559 \ucc98\ub9ac \uc7a5\uce58(CPU)\ub97c \uc758\ubbf8\ud558\uba70, \uba54\ubaa8\ub9ac\uc5d0\uc11c \ud504\ub85c\uc138\uc2a4\uc758 \uba85\ub839\uc5b4\ub97c \uac00\uc838\uc640 \ud574\uc11d\ud558\uace0 \uc5f0\uc0b0\uc744 \uc218\ud589\ud558\ub294 \ud575\uc2ec \ud558\ub4dc\uc6e8\uc5b4 \uc7a5\uce58\ub2e4. CPU \ub0b4\ubd80\uc5d0\ub294 \uc2e4\uc9c8\uc801\uc778 \uc5f0\uc0b0\uc744 \ub2f4\ub2f9\ud558\ub294 &#8216;\ucf54\uc5b4(Core)&#8217;\uac00 \uc788\uc73c\uba70, \ucf54\uc5b4\uc758 \uac1c\uc218\uac00 \ub9ce\uc744\uc218\ub85d \uc5ec\ub7ec \uc791\uc5c5\uc744 \ub3d9\uc2dc\uc5d0 \ucc98\ub9ac\ud558\ub294 \ubcd1\ub82c \ucc98\ub9ac(Parallelism) \ub2a5\ub825\uc774 \ud5a5\uc0c1\ub41c\ub2e4.<\/p><\/li>\n\n\n\n<li><p><strong>\uc2a4\ub808\ub4dc (Thread): \ud504\ub85c\uc138\uc2a4 \ub0b4\uc758 \uc2e4\ud589 \ud750\ub984 \ub2e8\uc704<\/strong><br><br>\uc2a4\ub808\ub4dc\ub780 \ud558\ub098\uc758 \ud504\ub85c\uc138\uc2a4 \ub0b4\uc5d0\uc11c \uc2e4\ud589\ub418\ub294 \ub354 \uc791\uc740 \uc2e4\ud589 \ud750\ub984\uc758 \ub2e8\uc704\ub2e4. \ud55c \ud504\ub85c\uc138\uc2a4\ub294 \ud558\ub098 \uc774\uc0c1\uc758 \uc2a4\ub808\ub4dc\ub97c \uac00\uc9c8 \uc218 \uc788\uc73c\uba70, \uc774\ub97c \uba40\ud2f0\uc2a4\ub808\ub529(Multi-threading)\uc774\ub77c\uace0 \ud55c\ub2e4.<\/p><p>\ud504\ub85c\uc138\uc2a4 \ub0b4\uc758 \uc2a4\ub808\ub4dc\ub4e4\uc740 \ud574\ub2f9 \ud504\ub85c\uc138\uc2a4\uc758 \uba54\ubaa8\ub9ac \uc790\uc6d0(\ucf54\ub4dc, \ub370\uc774\ud130, \ud799 \uc601\uc5ed)\uc744 \uacf5\uc720\ud55c\ub2e4. \uc774 \ub355\ubd84\uc5d0 \uc2a4\ub808\ub4dc \uac04 \ub370\uc774\ud130 \uad50\ud658\uc774 \uc6a9\uc774\ud558\uace0 \uc790\uc6d0\uc744 \ud6a8\uc728\uc801\uc73c\ub85c \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4. \ud558\uc9c0\ub9cc \uac01 \uc2a4\ub808\ub4dc\ub294 \ub3c5\ub9bd\uc801\uc778 \uc2e4\ud589 \ud750\ub984\uc744 \uc720\uc9c0\ud574\uc57c \ud558\ubbc0\ub85c, \uc790\uc2e0\ub9cc\uc758 \ud504\ub85c\uadf8\ub7a8 \uce74\uc6b4\ud130(PC), \ub808\uc9c0\uc2a4\ud130 \uc9d1\ud569, \uadf8\ub9ac\uace0 \uc2a4\ud0dd(Stack) \uacf5\uac04\uc740 \ubcc4\ub3c4\ub85c \ud560\ub2f9\ubc1b\ub294\ub2e4. \uc2a4\ub808\ub4dc\ub97c \ud65c\uc6a9\ud558\uba74 \ud558\ub098\uc758 \ud504\ub85c\uc138\uc2a4 \ub0b4\uc5d0\uc11c \uc5ec\ub7ec \uc791\uc5c5\uc744 \ub3d9\uc2dc\uc5d0 \uc218\ud589\ud558\ub294 \uac83\ucc98\ub7fc \ubcf4\uc774\ub294 \ub3d9\uc2dc\uc131(Concurrency)\uc744 \uad6c\ud604\ud558\uac70\ub098, \uba40\ud2f0\ucf54\uc5b4 \ud658\uacbd\uc5d0\uc11c \uc2e4\uc81c\ub85c \uc5ec\ub7ec \uc791\uc5c5\uc744 \ubcd1\ub82c\ub85c \ucc98\ub9ac\ud558\uc5ec \uc131\ub2a5\uc744 \ub192\uc77c \uc218 \uc788\ub2e4.<\/p><br><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2. \ud648\ud398\uc774\uc9c0 vs. \uc6f9 \uc11c\ube44\uc2a4: \uacb0\uc815\uc801 \ucc28\uc774\ub294 &#8216;CRUD&#8217;\uc5d0 \uc788\ub2e4!<\/h3>\n\n\n\n<p>&#8216;\ud648\ud398\uc774\uc9c0&#8217;\uc640 &#8216;\uc6f9 \uc11c\ube44\uc2a4&#8217;\ub294 \uc885\uc885 \ud63c\uc6a9\ub418\uc9c0\ub9cc, \ub370\uc774\ud130 \ucc98\ub9ac \uad00\uc810\uc5d0\uc11c \uba85\ud655\ud55c \ucc28\uc774\uac00 \uc788\ub2e4. \uadf8 \ud575\uc2ec\uc801\uc778 \uad6c\ubd84 \uae30\uc900\uc740 \ub370\uc774\ud130 \uc870\uc791 \uae30\ub2a5, \uc989 &#8216;CRUD&#8217;\uc758 \uc720\ubb34\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>\ud648\ud398\uc774\uc9c0 (\uc815\uc801 \ucf58\ud150\uce20): \ub2e8\ubc29\ud5a5 \uc815\ubcf4 \uc81c\uacf5<\/strong><br><br>\uc804\ud1b5\uc801\uc778 \uc758\ubbf8\uc758 \ud648\ud398\uc774\uc9c0\ub294 \uc8fc\ub85c \uc815\ubcf4\ub97c \uc77c\ubc29\uc801\uc73c\ub85c \uc81c\uacf5\ud558\ub294 \ub370 \ubaa9\uc801\uc774 \uc788\ub2e4. \ud68c\uc0ac \uc18c\uac1c, \uc81c\ud488 \uc124\uba85, \uc5f0\ub77d\ucc98 \ub4f1 \uc815\uc801\uc778 \ucf58\ud150\uce20\ub97c \uc0ac\uc6a9\uc790\uc5d0\uac8c \ubcf4\uc5ec\uc8fc\ub294 \uac83\uc774 \uc8fc\ub41c \uae30\ub2a5\uc774\ub2e4. \uc0ac\uc6a9\uc790\ub294 \uc8fc\uc5b4\uc9c4 \uc815\ubcf4\ub97c &#8216;\uc77d\uae30(Read)&#8217;\ub9cc \ud560 \uc218 \uc788\uc744 \ubfd0, \ub370\uc774\ud130\ub97c \uc9c1\uc811 \uc0dd\uc131, \uc218\uc815, \uc0ad\uc81c\ud558\ub294 \uc0c1\ud638\uc791\uc6a9\uc740 \uac70\uc758 \ubd88\uac00\ub2a5\ud558\ub2e4.<\/p><\/li>\n\n\n\n<li><p><strong>\uc6f9 \uc11c\ube44\uc2a4 (\ub3d9\uc801 \uc0c1\ud638\uc791\uc6a9): \uc591\ubc29\ud5a5 \ub370\uc774\ud130 \ucc98\ub9ac<\/strong><br><br>\uc6f9 \uc11c\ube44\uc2a4\ub294 \uc0ac\uc6a9\uc790\uac00 \ub370\uc774\ud130\uc758 \uc8fc\uccb4\uac00 \ub418\uc5b4 \uc801\uadf9\uc801\uc73c\ub85c \uc0c1\ud638\uc791\uc6a9\ud558\ub294 \uc591\ubc29\ud5a5 \ud50c\ub7ab\ud3fc\uc774\ub2e4. \uc0ac\uc6a9\uc790\ub294 \ub2e8\uc21c\ud788 \uc815\ubcf4\ub97c \uc18c\ube44\ud558\ub294 \uac83\uc744 \ub118\uc5b4, \uc0c8\ub85c\uc6b4 \ub370\uc774\ud130\ub97c \uc0dd\uc131\ud558\uace0, \uae30\uc874 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uba70, \ubd88\ud544\uc694\ud55c \ub370\uc774\ud130\ub97c \uc0ad\uc81c\ud560 \uc218 \uc788\ub2e4. \uc774\ub7ec\ud55c \ub3d9\uc801 \uc0c1\ud638\uc791\uc6a9\uc758 \ud575\uc2ec\uc5d0 <strong>CRUD<\/strong>\uac00 \uc788\ub2e4.<\/p><\/li>\n\n\n\n<li><p><strong>CRUD\ub780 \ubb34\uc5c7\uc778\uac00? \ub370\uc774\ud130 \ucc98\ub9ac\uc758 \ub124 \uac00\uc9c0 \uae30\ubcf8 \uc5f0\uc0b0<\/strong><br><br>CRUD\ub294 \ub300\ubd80\ubd84\uc758 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uac00 \uac16\ub294 \uae30\ubcf8\uc801\uc778 \ub370\uc774\ud130 \ucc98\ub9ac \uae30\ub2a5\uc778 \uc0dd\uc131(Create), \uc77d\uae30(Read), \uac31\uc2e0(Update), \uc0ad\uc81c(Delete)\ub97c \uc758\ubbf8\ud558\ub294 \uc57d\uc5b4\ub2e4.<\/p><ul><li><strong>Create (\uc0dd\uc131):<\/strong> \uc0c8\ub85c\uc6b4 \ub370\uc774\ud130\ub97c \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc5d0 \uc800\uc7a5\ud558\ub294 \uc5f0\uc0b0\uc774\ub2e4.<br><ul><br><li><strong>\uc608\uc2dc:<\/strong> \ube14\ub85c\uadf8\uc5d0 \uc0c8 \uae00 \uc791\uc131, SNS\uc5d0 \uc0ac\uc9c4 \uc5c5\ub85c\ub4dc, \uc1fc\ud551\ubab0 \ud68c\uc6d0\uac00\uc785 \ub4f1<\/li><\/ul><br><\/li><br><li><strong>Read (\uc77d\uae30):<\/strong> \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc5d0 \uc800\uc7a5\ub41c \ub370\uc774\ud130\ub97c \uc870\ud68c\ud558\uc5ec \uc0ac\uc6a9\uc790\uc5d0\uac8c \ubcf4\uc5ec\uc8fc\ub294 \uc5f0\uc0b0\uc774\ub2e4.<br><ul><br><li><strong>\uc608\uc2dc:<\/strong> \uac8c\uc2dc\ud310 \uae00 \ubaa9\ub85d \ubcf4\uae30, \uce5c\uad6c \ud504\ub85c\ud544 \uc870\ud68c, \uc0c1\ud488 \uc0c1\uc138 \uc815\ubcf4 \ud655\uc778 \ub4f1<\/li><\/ul><br><\/li><br><li><strong>Update (\uc218\uc815):<\/strong> \uc774\ubbf8 \uc800\uc7a5\ub41c \uae30\uc874 \ub370\uc774\ud130\ub97c \ubcc0\uacbd\ud558\ub294 \uc5f0\uc0b0\uc774\ub2e4.<br><ul><br><li><strong>\uc608\uc2dc:<\/strong> \uc791\uc131\ud55c \uae00\uc758 \uc624\ud0c0 \uc218\uc815, \ud504\ub85c\ud544 \uc0ac\uc9c4 \uad50\uccb4, \ubc30\uc1a1\uc9c0 \uc8fc\uc18c \ubcc0\uacbd \ub4f1<\/li><\/ul><br><\/li><br><li><strong>Delete (\uc0ad\uc81c):<\/strong> \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc5d0\uc11c \ud2b9\uc815 \ub370\uc774\ud130\ub97c \uc601\uad6c\uc801\uc73c\ub85c \uc81c\uac70\ud558\ub294 \uc5f0\uc0b0\uc774\ub2e4.<br><ul><br><li><strong>\uc608\uc2dc:<\/strong> \uc791\uc131\ud55c \ub313\uae00 \uc0ad\uc81c, \uc7a5\ubc14\uad6c\ub2c8 \uc0c1\ud488 \uc81c\uac70, \ud68c\uc6d0 \ud0c8\ud1f4 \ub4f1<\/li><\/ul><br><\/li><\/ul><br><p>\uacb0\ub860\uc801\uc73c\ub85c, \uc0ac\uc6a9\uc790\uac00 \ub370\uc774\ud130\uc5d0 \ub300\ud574 C(\uc0dd\uc131), U(\uc218\uc815), D(\uc0ad\uc81c) \uc5f0\uc0b0\uc744 \uc218\ud589\ud560 \uc218 \uc788\ub2e4\uba74 \uc774\ub294 &#8216;\uc6f9 \uc11c\ube44\uc2a4&#8217;\uc758 \ud2b9\uc9d5\uc744 \uac16\ucd98 \uac83\uc774\ub2e4. \ubc18\uba74 R(\uc77d\uae30) \uae30\ub2a5\ub9cc \uc8fc\ub85c \uc81c\uacf5\ud55c\ub2e4\uba74 &#8216;\ud648\ud398\uc774\uc9c0&#8217;\uc5d0 \uac00\uae5d\ub2e4\uace0 \ubcfc \uc218 \uc788\ub2e4.<\/p><br><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3. \ub300\uce6d\ud0a4\uc640 \ube44\ub300\uce6d\ud0a4: \uc554\ud638\ud654\uc758 \ud575\uc2ec \uc6d0\ub9ac<\/h3>\n\n\n\n<p>\uc778\ud130\ub137 \ud1b5\uc2e0 \uc911 \ub370\uc774\ud130\ub97c \uac00\ub85c\ucc44\ub3c4 \ub0b4\uc6a9\uc744 \uc54c \uc218 \uc5c6\ub3c4\ub85d \ubcf4\ud638\ud558\ub294 &#8216;\uc554\ud638\ud654&#8217; \uae30\uc220\uc758 \ud575\uc2ec \uc6d0\ub9ac\uc778 \ub300\uce6d\ud0a4\uc640 \ube44\ub300\uce6d\ud0a4 \ubc29\uc2dd\uc744 \uc54c\uc544\ubcf8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>\ub300\uce6d\ud0a4 (Symmetric Key): \ub2e8\uc77c \ud0a4 \uc554\ud638\ud654<\/strong><\/p>\n<ul class=\"wp-block-list\">\n<li><strong>\uc6d0\ub9ac:<\/strong> \ub370\uc774\ud130\ub97c \uc554\ud638\ud654(encryption)\ud560 \ub54c\uc640 \ubcf5\ud638\ud654(decryption)\ud560 \ub54c &#8216;\ub3d9\uc77c\ud55c \ud558\ub098\uc758 \ud0a4&#8217;\ub97c \uc0ac\uc6a9\ud558\ub294 \ubc29\uc2dd\uc774\ub2e4. \uc1a1\uc2e0\uc790\uc640 \uc218\uc2e0\uc790\uac00 \uac19\uc740 \ud0a4\ub97c \uacf5\uc720\ud574\uc57c\ub9cc \ud1b5\uc2e0\uc774 \uac00\ub2a5\ud558\ub2e4.<\/li>\n\n\n\n<li><strong>\uc7a5\uc810:<\/strong> \uc554\ud638\ud654 \ubc0f \ubcf5\ud638\ud654 \uc5f0\uc0b0 \uacfc\uc815\uc774 \ub2e8\uc21c\ud558\uc5ec \uc18d\ub3c4\uac00 \ub9e4\uc6b0 \ube60\ub974\ub2e4. \ub530\ub77c\uc11c \ub300\uc6a9\ub7c9 \ub370\uc774\ud130\ub97c \uc554\ud638\ud654\ud558\ub294 \ub370 \ud6a8\uc728\uc801\uc774\ub2e4.<\/li>\n\n\n\n<li><strong>\ub2e8\uc810 (\ud0a4 \ubc30\uc1a1 \ubb38\uc81c):<\/strong> \ud1b5\uc2e0\uc744 \uc2dc\uc791\ud558\uae30 \uc804\uc5d0 \uc1a1\uc2e0\uc790\uc640 \uc218\uc2e0\uc790\uac00 \uc5b4\ub5bb\uac8c\ub4e0 \uc548\uc804\ud558\uac8c \ub3d9\uc77c\ud55c \ud0a4\ub97c \uacf5\uc720\ud574\uc57c \ud55c\ub2e4\ub294 \uce58\uba85\uc801\uc778 \ubb38\uc81c\uac00 \uc788\ub2e4. \ub9cc\uc57d \uc774 \ud0a4\ub97c \uc804\ub2ec\ud558\ub294 \uacfc\uc815\uc5d0\uc11c \ud0a4\uac00 \uc720\ucd9c\ub418\uba74, \uc774\ud6c4\uc758 \ubaa8\ub4e0 \uc554\ud638\ud654\ub41c \ud1b5\uc2e0 \ub0b4\uc6a9\uc740 \uc27d\uac8c \ud574\ub3c5\ub420 \uc218 \uc788\ub2e4. \ub610\ud55c, \ud1b5\uc2e0 \uc0c1\ub300\ubc29\uc774 \ub298\uc5b4\ub0a0\uc218\ub85d \uad00\ub9ac\ud574\uc57c \ud560 \ud0a4\uc758 \uac1c\uc218\uac00 \uae30\ud558\uae09\uc218\uc801\uc73c\ub85c \uc99d\uac00\ud55c\ub2e4.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><p><strong>\ube44\ub300\uce6d\ud0a4 (Asymmetric Key): \uacf5\uac1c\ud0a4 \uc554\ud638\ud654<\/strong><\/p>\n<ul class=\"wp-block-list\">\n<li><strong>\uc6d0\ub9ac:<\/strong> \ub300\uce6d\ud0a4\uc758 \ud0a4 \ubc30\uc1a1 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud574 \uace0\uc548\ub41c \ubc29\uc2dd\uc73c\ub85c, \uc554\ud638\ud654\uc640 \ubcf5\ud638\ud654\uc5d0 \uc11c\ub85c \ub2e4\ub978 \ud0a4\ub97c \uc0ac\uc6a9\ud55c\ub2e4. \uc774 \ub450 \ud0a4\ub294 \uc218\ud559\uc801\uc73c\ub85c \ud55c \uc30d\uc744 \uc774\ub8e8\uba70, \uac01\uac01 &#8216;\uacf5\uac1c\ud0a4(Public Key)&#8217;\uc640 &#8216;\uac1c\uc778\ud0a4(Private Key)&#8217;\ub77c\uace0 \ubd88\ub9b0\ub2e4.<\/li>\n\n\n\n<li><strong>\uc791\ub3d9 \ubc29\uc2dd:<\/strong>\n<ol class=\"wp-block-list\">\n<li>\ub370\uc774\ud130\ub97c \uc218\uc2e0\ud560 \uc8fc\uccb4(B)\uac00 \uc790\uc2e0\ub9cc\uc758 &#8216;\uac1c\uc778\ud0a4&#8217;\uc640 \uadf8\uc5d0 \ub9de\ub294 &#8216;\uacf5\uac1c\ud0a4&#8217; \ud55c \uc30d\uc744 \uc0dd\uc131\ud55c\ub2e4.<\/li>\n\n\n\n<li>&#8216;\uac1c\uc778\ud0a4&#8217;\ub294 \uc808\ub300\ub85c \uc678\ubd80\uc5d0 \ub178\ucd9c\ud558\uc9c0 \uc54a\uace0 \uc548\uc804\ud558\uac8c \ubcf4\uad00\ud558\uba70, &#8216;\uacf5\uac1c\ud0a4&#8217;\ub294 \ub370\uc774\ud130\ub97c \ubcf4\ub0bc \uc8fc\uccb4(A)\ub97c \ud3ec\ud568\ud55c \ub204\uad6c\uc5d0\uac8c\ub098 \uacf5\uac1c\uc801\uc73c\ub85c \ubc30\ud3ec\ud55c\ub2e4.<\/li>\n\n\n\n<li>\ub370\uc774\ud130\ub97c \ubcf4\ub0b4\ub294 A\ub294 B\ub85c\ubd80\ud130 \ubc1b\uc740 &#8216;\uacf5\uac1c\ud0a4&#8217;\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub370\uc774\ud130\ub97c \uc554\ud638\ud654\ud55c \ud6c4 \uc804\uc1a1\ud55c\ub2e4.<\/li>\n\n\n\n<li>\uc554\ud638\ud654\ub41c \ub370\uc774\ud130\ub294 \uc624\uc9c1 \uadf8 \uacf5\uac1c\ud0a4\uc640 \uc30d\uc744 \uc774\ub8e8\ub294 B\uc758 &#8216;\uac1c\uc778\ud0a4&#8217;\ub85c\ub9cc \ubcf5\ud638\ud654\ud560 \uc218 \uc788\ub2e4. \ub530\ub77c\uc11c \uc911\uac04\uc5d0 \ub370\uc774\ud130\uac00 \ud0c8\ucde8\ub418\ub354\ub77c\ub3c4 \uac1c\uc778\ud0a4\uac00 \uc5c6\ub294 \uacf5\uaca9\uc790\ub294 \ub0b4\uc6a9\uc744 \ubcfc \uc218 \uc5c6\ub2e4.<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li><strong>\uc7a5\uc810:<\/strong> \uacf5\uac1c\ud0a4\ub294 \uc774\ub984 \uadf8\ub300\ub85c \uc678\ubd80\uc5d0 \uacf5\uac1c\ub418\uc5b4\ub3c4 \ub418\ubbc0\ub85c, \ud0a4\ub97c \uc548\uc804\ud558\uac8c \uc804\ub2ec\ud574\uc57c \ud558\ub294 \ubb38\uc81c\uac00 \uadfc\ubcf8\uc801\uc73c\ub85c \ud574\uacb0\ub41c\ub2e4. \ub610\ud55c, \uac1c\uc778\ud0a4 \uc18c\uc720\uc790\ub9cc\uc774 \ub370\uc774\ud130\ub97c \ubcf5\ud638\ud654\ud560 \uc218 \uc788\ub2e4\ub294 \ud2b9\uc131\uc744 \uc774\uc6a9\ud574 &#8216;\uc804\uc790 \uc11c\uba85&#8217;\uc744 \uad6c\ud604\ud568\uc73c\ub85c\uc368 \uba54\uc2dc\uc9c0 \ucd9c\ucc98\ub97c \uc99d\uba85\ud558\uace0 \ubd80\uc778 \ubc29\uc9c0 \uae30\ub2a5\uc744 \uc81c\uacf5\ud560 \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li><strong>\ub2e8\uc810:<\/strong> \uc554\ud638\ud654 \ubc0f \ubcf5\ud638\ud654 \uacfc\uc815\uc5d0 \ubcf5\uc7a1\ud55c \uc218\ud559\uc801 \uc5f0\uc0b0\uc774 \ud544\uc694\ud558\uc5ec \ub300\uce6d\ud0a4 \ubc29\uc2dd\uc5d0 \ube44\ud574 \uc18d\ub3c4\uac00 \ud604\uc800\ud788 \ub290\ub9ac\ub2e4.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><p><strong>\uc2e4\uc804 \uc801\uc6a9: \ud558\uc774\ube0c\ub9ac\ub4dc \ubc29\uc2dd (HTTPS\uc758 \uc6d0\ub9ac)<\/strong><br><br>\ub300\uce6d\ud0a4\ub294 \ube60\ub974\uc9c0\ub9cc \ud0a4 \uad50\ud658\uc774 \uc704\ud5d8\ud558\uace0, \ube44\ub300\uce6d\ud0a4\ub294 \uc548\uc804\ud558\uc9c0\ub9cc \ub290\ub9ac\ub2e4. \ub530\ub77c\uc11c \uc2e4\uc81c \uc6f9 \ud1b5\uc2e0 \ubcf4\uc548 \ud45c\uc900\uc778 SSL\/TLS (HTTPS)\uc5d0\uc11c\ub294 \ub450 \ubc29\uc2dd\uc758 \uc7a5\uc810\uc744 \uacb0\ud569\ud55c &#8216;\ud558\uc774\ube0c\ub9ac\ub4dc \ubc29\uc2dd&#8217;\uc744 \uc0ac\uc6a9\ud55c\ub2e4.<\/p>\n<ol class=\"wp-block-list\">\n<li><strong>(\ube44\ub300\uce6d\ud0a4 \ud65c\uc6a9)<\/strong> \ud1b5\uc2e0 \ucd08\uae30 \ub2e8\uacc4(Handshake)\uc5d0\uc11c\ub294 \uc548\uc804\ud558\uc9c0\ub9cc \ub290\ub9b0 &#8216;\ube44\ub300\uce6d\ud0a4&#8217; \ubc29\uc2dd\uc744 \uc0ac\uc6a9\ud558\uc5ec, \uc2e4\uc81c \ub370\uc774\ud130\ub97c \uc554\ud638\ud654\ud558\ub294 \ub370 \uc0ac\uc6a9\ud560 &#8216;\ub300\uce6d\ud0a4&#8217;\ub97c \uc548\uc804\ud558\uac8c \uad50\ud658\ud55c\ub2e4.<\/li>\n\n\n\n<li><strong>(\ub300\uce6d\ud0a4 \ud65c\uc6a9)<\/strong> \uc591\uce21\uc774 \uc548\uc804\ud558\uac8c &#8216;\ub300\uce6d\ud0a4&#8217;\ub97c \uacf5\uc720\ud55c \ud6c4\uc5d0\ub294, \uc2e4\uc81c \ub300\uc6a9\ub7c9 \ub370\uc774\ud130(\ub85c\uadf8\uc778 \uc815\ubcf4, \uba54\uc2dc\uc9c0 \ub4f1)\ub294 \uc18d\ub3c4\uac00 \ube60\ub978 &#8216;\ub300\uce6d\ud0a4&#8217;\ub85c \uc554\ud638\ud654\ud558\uc5ec \ud1b5\uc2e0\ud55c\ub2e4.<br><br>\uc774\ucc98\ub7fc \ube44\ub300\uce6d\ud0a4\ub294 \ub300\uce6d\ud0a4\ub97c \uc548\uc804\ud558\uac8c \uad50\ud658\ud558\ub294 \ubaa9\uc801\ub9cc\uc73c\ub85c \uc0ac\uc6a9\ud558\uace0, \uc2e4\uc81c \ub370\uc774\ud130 \ud1b5\uc2e0\uc740 \ub300\uce6d\ud0a4\ub85c \ucc98\ub9ac\ud558\uc5ec \ubcf4\uc548\uacfc \uc131\ub2a5\uc744 \ubaa8\ub450 \ud655\ubcf4\ud55c\ub2e4.<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li><p><strong>\ub300\uce6d\ud0a4 vs. \ube44\ub300\uce6d\ud0a4 \ud575\uc2ec \ube44\uad50<\/strong><\/p><br><\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\ud56d\ubaa9<\/th><th>\ub300\uce6d\ud0a4<\/th><th>\ube44\ub300\uce6d\ud0a4<\/th><\/tr><\/thead><tbody><tr><td><strong>\ud0a4 (Key)<\/strong><\/td><td>\uc554\ud638\ud654\/\ubcf5\ud638\ud654\uc5d0 \ub3d9\uc77c\ud55c \ud0a4 1\uac1c \uc0ac\uc6a9<\/td><td>\uc554\ud638\ud654\/\ubcf5\ud638\ud654\uc5d0 \uc11c\ub85c \ub2e4\ub978 \ud0a4 1\uc30d(\uacf5\uac1c\ud0a4\/\uac1c\uc778\ud0a4) \uc0ac\uc6a9<\/td><\/tr><tr><td><strong>\uc18d\ub3c4 (Speed)<\/strong><\/td><td>\ube60\ub984<\/td><td>\ub290\ub9bc<\/td><\/tr><tr><td><strong>\ud0a4 \uad00\ub9ac<\/strong><\/td><td>\ud0a4 \ubc30\uc1a1\/\uad50\ud658 \ubb38\uc81c \ubc1c\uc0dd, \uad00\ub9ac\ud560 \ud0a4\uac00 \ub9ce\uc74c<\/td><td>\ud0a4 \ubc30\ud3ec\uac00 \uc6a9\uc774\ud558\uba70 \uad00\ub9ac\uac00 \uc218\uc6d4\ud568<\/td><\/tr><tr><td><strong>\ubcf4\uc548\uc131<\/strong><\/td><td>\ud0a4\uac00 \ub178\ucd9c\ub418\uba74 \uc804\uccb4 \ud1b5\uc2e0\uc774 \ucde8\uc57d\ud574\uc9d0<\/td><td>\uac1c\uc778\ud0a4\ub9cc \uc548\uc804\ud558\uac8c \ubcf4\uad00\ud558\uba74 \ubcf4\uc548\uc131\uc774 \ub192\uc74c<\/td><\/tr><tr><td><strong>\uc8fc\uc694 \uc6a9\ub3c4<\/strong><\/td><td>\ub300\uc6a9\ub7c9 \ub370\uc774\ud130 \uc554\ud638\ud654 (\uc608: AES)<\/td><td>\ud0a4 \uad50\ud658, \ub514\uc9c0\ud138 \uc11c\uba85 (\uc608: RSA)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">II. \uc778\uc99d \ud30c\ud5e4\uce58\uae30: Firebase \ub85c\uadf8\uc778 \ub530\ub77c\uac00 \ubcf4\uae30<\/h2>\n\n\n\n<p>\uc55e\uc11c \ub2e4\ub8ec \uc774\ub860\uc801 \uac1c\ub150\ub4e4\uc774 \uc2e4\uc81c \uc11c\ube44\uc2a4\uc5d0\uc11c \uc5b4\ub5bb\uac8c \uc801\uc6a9\ub418\ub294\uc9c0 BaaS(Backend as a Service)\uc778 Firebase \uc778\uc99d \uc2dc\uc2a4\ud15c\uc744 \ud1b5\ud574 \uad6c\uccb4\uc801\uc73c\ub85c \uc0b4\ud3b4\ubcf8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Firebase \ub85c\uadf8\uc778 \uc804\uccb4 \ud750\ub984<\/h3>\n\n\n\n<p>Firebase \uc18c\uc15c \ub85c\uadf8\uc778 \uacfc\uc815\uc740 \ub124 \uc8fc\uccb4 \uac04\uc758 \uc0c1\ud638\uc791\uc6a9\uc73c\ub85c \uc774\ub8e8\uc5b4\uc9c4\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>\ucc38\uc5ec\uc790<\/strong><\/p>\n<ul class=\"wp-block-list\">\n<li><strong>\uc0ac\uc6a9\uc790:<\/strong> \uc11c\ube44\uc2a4\ub97c \uc774\uc6a9\ud558\ub824\ub294 \uc8fc\uccb4.<\/li>\n\n\n\n<li><strong>\ud504\ub860\ud2b8\uc5d4\ub4dc (\ud074\ub77c\uc774\uc5b8\ud2b8 \uc571):<\/strong> \uc0ac\uc6a9\uc790\uc640 \uc9c1\uc811 \uc0c1\ud638\uc791\uc6a9\ud558\ub294 \uc6f9\/\uc571.<\/li>\n\n\n\n<li><strong>Firebase \uc778\uc99d \uc11c\ubc84:<\/strong> \uad6c\uae00\uc774 \uc6b4\uc601\ud558\ub294 \uc778\uc99d \uc804\ubb38 \uc11c\ubc84.<\/li>\n\n\n\n<li><strong>\ubc31\uc5d4\ub4dc \uc11c\ubc84:<\/strong> \uc11c\ube44\uc2a4\uc758 \ud575\uc2ec \ube44\uc988\ub2c8\uc2a4 \ub85c\uc9c1\uc744 \ucc98\ub9ac\ud558\ub294 \uc790\uccb4 \uac1c\ubc1c \uc11c\ubc84.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><p><strong>\ub85c\uadf8\uc778 \ud750\ub984 (Google \ub85c\uadf8\uc778 \uc608\uc2dc)<\/strong><\/p>\n<ol class=\"wp-block-list\">\n<li><p><strong>\uc0ac\uc6a9\uc790 \u2192 \ud504\ub860\ud2b8\uc5d4\ub4dc:<\/strong> \uc0ac\uc6a9\uc790\uac00 \ud504\ub860\ud2b8\uc5d4\ub4dc \ud654\uba74\uc758 &#8216;Google\ub85c \ub85c\uadf8\uc778&#8217; \ubc84\ud2bc\uc744 \ud074\ub9ad\ud558\uc5ec \ub85c\uadf8\uc778 \uc808\ucc28\ub97c \uc2dc\uc791\ud55c\ub2e4.<\/p><br><\/li>\n\n\n\n<li><p><strong>\ud504\ub860\ud2b8\uc5d4\ub4dc \u2192 Firebase \uc778\uc99d \uc11c\ubc84:<\/strong> \ud504\ub860\ud2b8\uc5d4\ub4dc\ub294 Firebase SDK\uc758 <code>signInWithPopup()<\/code>\uacfc \uac19\uc740 \ud568\uc218\ub97c \ud638\ucd9c\ud558\uc5ec Firebase \uc778\uc99d \uc11c\ubc84\uc5d0 \uc778\uc99d\uc744 \uc694\uccad\ud55c\ub2e4. \uc774 \uc694\uccad\uc5d0\ub294 \uc0ac\uc804\uc5d0 Firebase \ucf58\uc194\uc5d0\uc11c \uc124\uc815\ud55c \uc81c\uacf5\uc790(Provider) \uc815\ubcf4\uac00 \ud3ec\ud568\ub41c\ub2e4.<\/p><br><\/li>\n\n\n\n<li><p><strong>Firebase \uc778\uc99d \uc11c\ubc84 \u2194 \uc0ac\uc6a9\uc790:<\/strong> Firebase\ub294 \uad6c\uae00 \ub85c\uadf8\uc778 \ud31d\uc5c5\ucc3d\uc744 \ub744\uc6b4\ub2e4. \uc0ac\uc6a9\uc790\ub294 \uc774 \ud31d\uc5c5\ucc3d\uc5d0\uc11c \uc790\uc2e0\uc758 \uad6c\uae00 \uacc4\uc815 \uc815\ubcf4\ub97c \uc785\ub825\ud558\uc5ec \uc778\uc99d\uc744 \uc644\ub8cc\ud55c\ub2e4. \uc774 \uacfc\uc815\uc5d0\uc11c \uc0ac\uc6a9\uc790\uc758 \ube44\ubc00\ubc88\ud638\ub294 \ud504\ub860\ud2b8\uc5d4\ub4dc\ub098 \ubc31\uc5d4\ub4dc \uc11c\ubc84\uc5d0 \uc804\ub2ec\ub418\uc9c0 \uc54a\ub294\ub2e4.<\/p><br><\/li>\n\n\n\n<li><p><strong>Firebase \uc778\uc99d \uc11c\ubc84 \u2192 \ud504\ub860\ud2b8\uc5d4\ub4dc:<\/strong> \uc778\uc99d\uc774 \uc131\uacf5\ud558\uba74, Firebase \uc778\uc99d \uc11c\ubc84\ub294 \ud574\ub2f9 \uc0ac\uc6a9\uc790\ub97c \uc2dd\ubcc4\ud558\ub294 \uc815\ubcf4\uac00 \ub2f4\uae34 <strong>ID \ud1a0\ud070<\/strong>\uacfc \ud1a0\ud070 \uac31\uc2e0\uc5d0 \uc0ac\uc6a9\ub420 <strong>\ub9ac\ud504\ub808\uc2dc \ud1a0\ud070<\/strong>\uc744 \ud504\ub860\ud2b8\uc5d4\ub4dc\uc5d0 \ubc1c\uae09\ud55c\ub2e4.<\/p><br><\/li>\n\n\n\n<li><p><strong>\ud504\ub860\ud2b8\uc5d4\ub4dc \u2192 \ubc31\uc5d4\ub4dc \uc11c\ubc84:<\/strong> \ud504\ub860\ud2b8\uc5d4\ub4dc\ub294 \ubc31\uc5d4\ub4dc \uc11c\ubc84\uc758 \ubcf4\ud638\ub41c API(\uc608: \ub9c8\uc774\ud398\uc774\uc9c0 \uc815\ubcf4 \uc694\uccad)\ub97c \ud638\ucd9c\ud560 \ub54c, HTTP \uc694\uccad\uc758 <code>Authorization<\/code> \ud5e4\ub354\uc5d0 <code>Bearer &lt;ID_TOKEN><\/code> \ud615\uc2dd\uc73c\ub85c ID \ud1a0\ud070\uc744 \ucca8\ubd80\ud558\uc5ec \uc804\uc1a1\ud55c\ub2e4.<\/p><br><\/li>\n\n\n\n<li><p><strong>\ubc31\uc5d4\ub4dc \uc11c\ubc84 \u2192 Firebase \uc778\uc99d \uc11c\ubc84:<\/strong> \ubc31\uc5d4\ub4dc \uc11c\ubc84\ub294 \ud074\ub77c\uc774\uc5b8\ud2b8\uac00 \ubcf4\ub0b8 ID \ud1a0\ud070\uc744 \ub9f9\ubaa9\uc801\uc73c\ub85c \uc2e0\ub8b0\ud558\uc9c0 \uc54a\ub294\ub2e4. \ub300\uc2e0 Firebase Admin SDK\uc758 <code>verifyIdToken()<\/code> \ud568\uc218\ub97c \uc0ac\uc6a9\ud558\uc5ec \ud574\ub2f9 \ud1a0\ud070\uc774 \uc720\ud6a8\ud55c\uc9c0 Firebase \uc778\uc99d \uc11c\ubc84\uc5d0 \uc9c1\uc811 \uac80\uc99d\uc744 \uc694\uccad\ud55c\ub2e4.<\/p><br><\/li>\n\n\n\n<li><p><strong>Firebase \uc778\uc99d \uc11c\ubc84 \u2192 \ubc31\uc5d4\ub4dc \uc11c\ubc84:<\/strong> \ud1a0\ud070 \uac80\uc99d\uc774 \uc131\uacf5\ud558\uba74, Firebase\ub294 \ud574\ub2f9 \ud1a0\ud070\uc774 \uc720\ud6a8\ud568\uc744 \ud655\uc778\ud558\uace0 \ud1a0\ud070\uc5d0 \ud3ec\ud568\ub41c \uc0ac\uc6a9\uc790\uc758 \uace0\uc720 \uc2dd\ubcc4\uc790(UID) \ub4f1\uc758 \uc815\ubcf4\ub97c \ubc31\uc5d4\ub4dc \uc11c\ubc84\uc5d0 \ubc18\ud658\ud55c\ub2e4.<\/p><br><\/li>\n\n\n\n<li><p><strong>\ubc31\uc5d4\ub4dc \uc11c\ubc84 \u2192 \ud504\ub860\ud2b8\uc5d4\ub4dc:<\/strong> \ubc31\uc5d4\ub4dc \uc11c\ubc84\ub294 \uac80\uc99d\ub41c <code>UID<\/code>\ub97c \uae30\ubc18\uc73c\ub85c \uc790\uccb4 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc5d0\uc11c \uc0ac\uc6a9\uc790\ub97c \uc2dd\ubcc4\ud558\uace0, \uc694\uccad\ub41c \ube44\uc988\ub2c8\uc2a4 \ub85c\uc9c1\uc744 \ucc98\ub9ac\ud55c \ud6c4 \uadf8 \uacb0\uacfc\ub97c \ud504\ub860\ud2b8\uc5d4\ub4dc\uc5d0 \uc751\ub2f5\ud55c\ub2e4.<\/p><br><\/li>\n<\/ol>\n<\/li>\n<\/ul>\n\n\n\n<p>\uc774 \ud750\ub984\uc758 \ud575\uc2ec\uc740 \uc778\uc99d \uacfc\uc815\uc744 \uc2e0\ub8b0\ud560 \uc218 \uc788\ub294 \uc81c3\uc790(Firebase)\uc5d0\uac8c \uc704\uc784\ud558\uace0, \uadf8 \uacb0\uacfc\ub85c \ubc1c\uae09\ub41c \uc554\ud638\ud559\uc801\uc73c\ub85c \uac80\uc99d \uac00\ub2a5\ud55c \uc99d\uba85\uc11c(ID \ud1a0\ud070)\ub97c \ud1b5\ud574 \uc0ac\uc6a9\uc790\uc758 \uc2e0\uc6d0\uc744 \ud655\uc778\ud558\ub294 \uac83\uc774\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. \ubc31\uc5d4\ub4dc \uc11c\ubc84\uc758 \ud1a0\ud070 \uac80\uc99d<\/h3>\n\n\n\n<p>\ubc31\uc5d4\ub4dc\uc5d0\uc11c ID \ud1a0\ud070\uc744 \uac80\uc99d\ud558\ub294 \uacfc\uc815\uc740 API \ubcf4\uc548\uc758 \ud575\uc2ec\uc774\ub2e4. \uc774 \uacfc\uc815\uc774 \uc5c6\ub2e4\uba74 \ub204\uad6c\ub098 \uc704\uc870\ub41c \ud1a0\ud070\uc73c\ub85c \ub2e4\ub978 \uc0ac\uc6a9\uc790\ub97c \uc0ac\uce6d\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>\ud1a0\ud070\uc758 \uc885\ub958: ID \ud1a0\ud070 vs. \ub9ac\ud504\ub808\uc2dc \ud1a0\ud070<\/strong><\/p>\n<ul class=\"wp-block-list\">\n<li><strong>ID \ud1a0\ud070 (Access Token):<\/strong> \uc0ac\uc6a9\uc790\uc758 \uc2e0\uc6d0\uacfc \uad8c\ud55c\uc744 \uc99d\uba85\ud558\ub294 JWT(JSON Web Token) \ud615\uc2dd\uc758 \uc778\uc99d\uc11c\ub2e4. \uc720\ud6a8 \uae30\uac04\uc774 1\uc2dc\uac04\uc73c\ub85c \uc9e7\uc544 \ud0c8\ucde8 \uc2dc \ud53c\ud574\ub97c \ucd5c\uc18c\ud654\ud560 \uc218 \uc788\ub2e4. \ubc31\uc5d4\ub4dc API\ub97c \ud638\ucd9c\ud560 \ub54c\ub9c8\ub2e4 \uc790\uaca9 \uc99d\uba85\uc744 \uc704\ud574 \uc0ac\uc6a9\ub41c\ub2e4.<\/li>\n\n\n\n<li><strong>\ub9ac\ud504\ub808\uc2dc \ud1a0\ud070:<\/strong> ID \ud1a0\ud070\uc774 \ub9cc\ub8cc\ub418\uc5c8\uc744 \ub54c, \uc0ac\uc6a9\uc790\uac00 \uc7ac\ub85c\uadf8\uc778 \uc5c6\uc774 \uc0c8\ub85c\uc6b4 ID \ud1a0\ud070\uc744 \ubc1c\uae09\ubc1b\uae30 \uc704\ud574 \uc0ac\uc6a9\ub418\ub294 \ud1a0\ud070\uc774\ub2e4. \uc720\ud6a8 \uae30\uac04\uc774 \uae38\uba70, Firebase \ud074\ub77c\uc774\uc5b8\ud2b8 SDK\uac00 \uc774 \ud1a0\ud070\uc758 \uad00\ub9ac\uc640 \uac31\uc2e0\uc744 \uc790\ub3d9\uc73c\ub85c \ucc98\ub9ac\ud558\ubbc0\ub85c \uac1c\ubc1c\uc790\uac00 \uc9c1\uc811 \ub2e4\ub8f0 \uc77c\uc740 \uac70\uc758 \uc5c6\ub2e4.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><p><strong>\ubc31\uc5d4\ub4dc \uc124\uc815: Firebase Admin SDK \ucd08\uae30\ud654<\/strong><br><br>\ubc31\uc5d4\ub4dc \uc11c\ubc84\uac00 Firebase \uc778\uc99d \uc11c\ubc84\uc640 \ud1b5\uc2e0\ud558\ub824\uba74 Admin SDK \uc124\uc815\uc774 \ud544\uc694\ud558\ub2e4.<\/p>\n<ol class=\"wp-block-list\">\n<li>Firebase \ud504\ub85c\uc81d\ud2b8 \ucf58\uc194\uc758 &#8216;\uc11c\ube44\uc2a4 \uacc4\uc815&#8217; \ud0ed\uc5d0\uc11c \ube44\uacf5\uac1c \ud0a4 \ud30c\uc77c(<code>.json<\/code>)\uc744 \ub2e4\uc6b4\ub85c\ub4dc\ud55c\ub2e4. \uc774 \ud30c\uc77c\uc740 \uc11c\ubc84\uc758 \ubaa8\ub4e0 \uad8c\ud55c\uc744 \uac00\uc9c4 \ub9c8\uc2a4\ud130\ud0a4\uc774\ubbc0\ub85c \uc678\ubd80\uc5d0 \ub178\ucd9c\ub418\uc9c0 \uc54a\ub3c4\ub85d \uc548\uc804\ud558\uac8c \uad00\ub9ac\ud574\uc57c \ud55c\ub2e4.<\/li>\n\n\n\n<li>\ub2e4\uc6b4\ub85c\ub4dc\ud55c \ud0a4 \ud30c\uc77c\uc744 \uc0ac\uc6a9\ud558\uc5ec \ubc31\uc5d4\ub4dc \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0\uc11c Admin SDK\ub97c \ucd08\uae30\ud654\ud55c\ub2e4. \ud30c\uc77c \uacbd\ub85c\ub97c \ucf54\ub4dc\uc5d0 \uc9c1\uc811 \uc791\uc131\ud558\ub294 \ub300\uc2e0, <code>GOOGLE_APPLICATION_CREDENTIALS<\/code> \ud658\uacbd \ubcc0\uc218\ub85c \uacbd\ub85c\ub97c \uc9c0\uc815\ud558\ub294 \ubc29\uc2dd\uc774 \uad8c\uc7a5\ub41c\ub2e4.<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li><p><strong>\uac80\uc99d \ud504\ub85c\uc138\uc2a4: \ucf54\ub4dc \ub808\ubca8 \ubd84\uc11d<\/strong><br><br>Node.js(Express) \ud658\uacbd\uc744 \uc608\ub85c \ub4e4\uc5b4 \uc2e4\uc81c \uac80\uc99d \uacfc\uc815\uc744 \ub2e8\uacc4\ubcc4\ub85c \uc124\uba85\ud55c\ub2e4.<\/p>\n<ol class=\"wp-block-list\">\n<li><p><strong>\ud1a0\ud070 \ucd94\ucd9c:<\/strong> \ubc31\uc5d4\ub4dc \uc11c\ubc84\ub294 API \uc694\uccad\uc744 \ubc1b\uc73c\uba74, <code>Authorization<\/code> \ud5e4\ub354\uc5d0\uc11c <code>Bearer<\/code> \uc811\ub450\uc0ac\ub97c \uc81c\uac70\ud558\uace0 ID \ud1a0\ud070 \ubb38\uc790\uc5f4\uc744 \ucd94\ucd9c\ud55c\ub2e4. \uc774 \ub85c\uc9c1\uc740 \ubcf4\ud1b5 \ubbf8\ub4e4\uc6e8\uc5b4 \ud568\uc218\ub85c \uad6c\ud604\ub41c\ub2e4.<\/p><br><pre><code class=\"language-javascript\">const authHeader = req.headers.authorization;<br>    if (!authHeader ||!authHeader.startsWith('Bearer ')) {<br>    return res.status(401).send('Unauthorized');<br>}<br>    const idToken = authHeader.split(' ');        <\/code><\/pre><br><\/li>\n\n\n\n<li><p><strong>\ud1a0\ud070 \uac80\uc99d (<code>verifyIdToken<\/code>)<\/strong>: \ucd94\ucd9c\ud55c ID \ud1a0\ud070\uc744 <code>admin.auth().verifyIdToken()<\/code> \ud568\uc218\uc5d0 \uc804\ub2ec\ud558\uc5ec \uac80\uc99d\uc744 \uc218\ud589\ud55c\ub2e4.<\/p><pre><code class=\"language-javascript\">try {<br>  const decodedToken = await admin.auth().verifyIdToken(idToken);<br>  req.user = decodedToken; \/\/ \uac80\uc99d \uc131\uacf5 \uc2dc, \uc694\uccad \uac1d\uccb4\uc5d0 \ub514\ucf54\ub529\ub41c \uc0ac\uc6a9\uc790 \uc815\ubcf4\ub97c \ucd94\uac00<br>  next(); \/\/ \ub2e4\uc74c \ub85c\uc9c1\uc73c\ub85c \uc81c\uc5b4 \uc804\ub2ec<br>} catch (error) {<br>  return res.status(401).send('Unauthorized'); \/\/ \uac80\uc99d \uc2e4\ud328<br>}<\/code><\/pre><p><code>verifyIdToken<\/code> \ud568\uc218\ub294 \ub0b4\ubd80\uc801\uc73c\ub85c \ub2e4\uc74c\uc758 \uc911\uc694\ud55c \uac80\uc99d\uc744 \uc790\ub3d9\uc73c\ub85c \uc218\ud589\ud55c\ub2e4 :<\/p>\n<ul class=\"wp-block-list\">\n<li><strong>\uc11c\uba85(Signature) \uac80\uc99d:<\/strong> \ud1a0\ud070\uc774 Firebase\uc758 \uac1c\uc778\ud0a4\ub85c \uc62c\ubc14\ub974\uac8c \uc11c\uba85\ub418\uc5c8\ub294\uc9c0 \ud655\uc778\ud558\uc5ec \uc704\uc870 \uc5ec\ubd80\ub97c \ud310\ub2e8\ud55c\ub2e4.<\/li>\n\n\n\n<li><strong>\ub9cc\ub8cc \uc2dc\uac04(Expiration) \uac80\uc99d:<\/strong> \ud1a0\ud070\uc758 \uc720\ud6a8 \uae30\uac04(1\uc2dc\uac04)\uc774 \uc9c0\ub098\uc9c0 \uc54a\uc558\ub294\uc9c0 \ud655\uc778\ud55c\ub2e4.<\/li>\n\n\n\n<li><strong>\ubc1c\uae09\uc790(Issuer) \ubc0f \ub300\uc0c1(Audience) \uac80\uc99d:<\/strong> \ud1a0\ud070\uc774 \ud574\ub2f9 Firebase \ud504\ub85c\uc81d\ud2b8\uc5d0\uc11c \ubc1c\uae09\ub41c \uac83\uc774 \ub9de\ub294\uc9c0 \ud655\uc778\ud55c\ub2e4.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><p><strong>UID \ud655\ubcf4 \ubc0f \ud65c\uc6a9:<\/strong> \uac80\uc99d\uc774 \uc131\uacf5\ud558\uba74 <code>verifyIdToken<\/code> \ud568\uc218\ub294 \ub514\ucf54\ub529\ub41c \ud1a0\ud070 \uac1d\uccb4\ub97c \ubc18\ud658\ud55c\ub2e4. \uc774 \uac1d\uccb4\uc5d0 \ud3ec\ud568\ub41c <code>uid<\/code>\ub294 \ud574\ub2f9 \uc0ac\uc6a9\uc790\uc758 \uace0\uc720 \uc2dd\ubcc4\uc790\ub2e4.<\/p><br><pre><code class=\"language-javascript\">\/\/ API \ub77c\uc6b0\ud130 \ud578\ub4e4\ub7ec<br>app.get('\/api\/mypage', (req, res) => {<br>  const uid = req.user.uid; \/\/ \ubbf8\ub4e4\uc6e8\uc5b4\uc5d0\uc11c \ucd94\uac00\ud55c \uc0ac\uc6a9\uc790 \uc815\ubcf4\uc5d0\uc11c uid\ub97c \ucd94\ucd9c<br><br>  \/\/ \uc774 uid\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc5d0\uc11c \uc0ac\uc6a9\uc790 \uc815\ubcf4\ub97c \uc870\ud68c\ud558\uace0 \ub85c\uc9c1\uc744 \ucc98\ub9ac<br>  db.users.find({ id: uid }).then(userData => {<br>    res.json(userData);<br>  });<br>});<\/code><\/pre><br><p>\ud1a0\ud070\uc774 \uc720\ud6a8\ud558\uc9c0 \uc54a\uc73c\uba74 \ud568\uc218\ub294 \uc5d0\ub7ec\ub97c \ubc1c\uc0dd\uc2dc\ud0a4\uace0, <code>catch<\/code> \ube14\ub85d\uc5d0\uc11c &#8216;401 Unauthorized&#8217; \uc751\ub2f5\uc744 \ubc18\ud658\ud558\uc5ec \uc811\uadfc\uc744 \ucc28\ub2e8\ud55c\ub2e4. \uc774\ucc98\ub7fc \ubc31\uc5d4\ub4dc\ub294 \ud074\ub77c\uc774\uc5b8\ud2b8\uc758 \uc8fc\uc7a5\uc744 \uc2e0\ub8b0\ud558\uc9c0 \uc54a\uace0, \uc624\uc9c1 \uc554\ud638\ud559\uc801\uc73c\ub85c \uac80\uc99d\ub41c <code>uid<\/code>\ub9cc\uc744 \uc2e0\ub8b0\ud558\uc5ec \ub85c\uc9c1\uc744 \uc218\ud589\ud574\uc57c \ud55c\ub2e4.<\/p><br><\/li>\n<\/ol>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\uc8fc\ub2c8\uc5b4 \uac1c\ubc1c\uc790\ub97c \uc704\ud55c \uc6f9 \uac1c\ubc1c \uae30\ucd08: I. \ud575\uc2ec CS \uc9c0\uc2dd \uac1c\ubc1c\uc790\ub85c\uc11c \ud0c4\ud0c4\ud55c \uae30\ubcf8\uae30\ub97c \uc313\uae30 \uc704\ud574 \ubc18\ub4dc\uc2dc \uc54c\uc544\uc57c \ud560 \ud575\uc2ec \ucef4\ud4e8\ud130 \uacfc\ud559(CS) \uc9c0\uc2dd\uc744 \uc815\ub9ac\ud574\ubcf8\ub2e4. \ubcf5\uc7a1\ud55c \uac1c\ub150\uc744 \uba85\ud655\ud558\uace0 \uc9c1\uc811\uc801\uc778 \uc124\uba85\uc73c\ub85c \ud480\uc5b4\ub0b4\uace0\uc790 \ud55c\ub2e4. 1. \ud504\ub85c\uadf8\ub7a8, \ud504\ub85c\uc138\uc2a4, \ud504\ub85c\uc138\uc11c, \uadf8\ub9ac\uace0 \uc2a4\ub808\ub4dc \ucef4\ud4e8\ud130 \uc791\ub3d9\uc758 \uae30\ubcf8 \ub2e8\uc704\uc778 \ud504\ub85c\uadf8\ub7a8, \ud504\ub85c\uc138\uc2a4, \ud504\ub85c\uc138\uc11c, \uc2a4\ub808\ub4dc\uc758 \uac1c\ub150\uc744 \uba85\ud655\ud788 \uc815\uc758\ud558\uace0 \uadf8 \uad00\uacc4\ub97c \uc124\uba85\ud55c\ub2e4. 2. \ud648\ud398\uc774\uc9c0 vs. \uc6f9 \uc11c\ube44\uc2a4: [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[41],"tags":[132,131,127],"class_list":["post-118","post","type-post","status-publish","format-standard","hentry","category-computer-science","tag-132","tag-131","tag-127"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/hed-g.me\/index.php?rest_route=\/wp\/v2\/posts\/118","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hed-g.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hed-g.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hed-g.me\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hed-g.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=118"}],"version-history":[{"count":1,"href":"https:\/\/hed-g.me\/index.php?rest_route=\/wp\/v2\/posts\/118\/revisions"}],"predecessor-version":[{"id":143,"href":"https:\/\/hed-g.me\/index.php?rest_route=\/wp\/v2\/posts\/118\/revisions\/143"}],"wp:attachment":[{"href":"https:\/\/hed-g.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=118"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hed-g.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=118"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hed-g.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=118"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}