\uc790\ubc14 \uc554\ud638\ud654 \uae30\uc220\uc744 \ud65c\uc6a9\ud55c \ub370\uc774\ud130 \ubcf4\uc548\uacfc \uc554\ud638\ud654 \uc804\ub7b5<\/h1>\n

<\/p>\n

\ub370\uc774\ud130 \ubcf4\uc548\uc740 \ubaa8\ub4e0 \uae30\uc5c5\uc5d0\uac8c \uc911\uc694\ud569\ub2c8\ub2e4. \uc545\uc758\uc801\uc778 \ud574\ucee4\ub4e4\uc740 \ubbfc\uac10\ud55c \uc815\ubcf4\ub97c \ud0c8\ucde8\ud558\uac70\ub098 \ubcc0\uc870\ud558\uc5ec \uae30\uc5c5\uc5d0 \ud070 \ud53c\ud574\ub97c \uc785\ud790 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc704\ud5d8\uc73c\ub85c\ubd80\ud130 \ub370\uc774\ud130\ub97c \ubcf4\ud638\ud558\uae30 \uc704\ud574\uc11c\ub294 \uc554\ud638\ud654\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \uc790\ubc14 \uc554\ud638\ud654 \uae30\uc220\uc740 \uc774\ub7ec\ud55c \ub370\uc774\ud130 \ubcf4\uc548 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud55c \ubc29\ubc95 \uc911 \ud558\ub098\uc785\ub2c8\ub2e4. \uc774 \uae30\uc220\uc740 \uc554\ud638\ud654\ub41c \ub370\uc774\ud130\ub97c \uc0dd\uc131\ud558\uace0, \uadf8 \ub370\uc774\ud130\ub97c \ubcf5\ud638\ud654\ud558\uc5ec \uc548\uc804\ud558\uac8c \ubcf4\ud638\ud558\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc774 \uae00\uc5d0\uc11c\ub294 \uc790\ubc14 \uc554\ud638\ud654 \uae30\uc220\uc758 \uc774\ud574\uc640 \ub370\uc774\ud130 \ubcf4\ud638\ub97c \uc704\ud55c \uc554\ud638\ud654 \uc804\ub7b5, \uadf8\ub9ac\uace0 \uc790\ubc14 \uc554\ud638\ud654 \uae30\uc220\uc744 \uc801\uc6a9\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n

\uc790\ubc14 \uc554\ud638\ud654 \uae30\uc220\uc758 \uc774\ud574<\/h2>\n

\uc790\ubc14 \uc554\ud638\ud654 \uae30\uc220\uc740 \ub300\uce6d\ud0a4 \uc554\ud638\ud654\uc640 \uacf5\uac1c\ud0a4 \uc554\ud638\ud654\ub97c \ubaa8\ub450 \uc9c0\uc6d0\ud569\ub2c8\ub2e4. \ub300\uce6d\ud0a4 \uc554\ud638\ud654\ub294 \uac19\uc740 \ud0a4\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub370\uc774\ud130\ub97c \uc554\ud638\ud654\ud558\uace0 \ubcf5\ud638\ud654\ud558\ub294 \ubc29\uc2dd\uc785\ub2c8\ub2e4. \uacf5\uac1c\ud0a4 \uc554\ud638\ud654\ub294 \uacf5\uac1c\ud0a4\uc640 \uac1c\uc778\ud0a4\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub370\uc774\ud130\ub97c \uc554\ud638\ud654\ud558\uace0 \ubcf5\ud638\ud654\ud558\ub294 \ubc29\uc2dd\uc785\ub2c8\ub2e4. \ub300\uce6d\ud0a4 \uc554\ud638\ud654\ub294 \uc554\ud638\ud654\uc640 \ubcf5\ud638\ud654\uac00 \ube60\ub974\uae30 \ub54c\ubb38\uc5d0 \ub300\ub7c9\uc758 \ub370\uc774\ud130\ub97c \ucc98\ub9ac\ud558\ub294 \ub370 \uc720\uc6a9\ud569\ub2c8\ub2e4. \ubc18\uba74\uc5d0 \uacf5\uac1c\ud0a4 \uc554\ud638\ud654\ub294 \ubcf4\uc548\uc131\uc774 \ub192\uae30 \ub54c\ubb38\uc5d0 \uc778\uc99d\uacfc \uac19\uc740 \ubcf4\uc548\uc801\uc778 \ubaa9\uc801\uc73c\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n

\uc790\ubc14\uc5d0\uc11c\ub294 javax.crypto \ud328\ud0a4\uc9c0\ub97c \ud1b5\ud574 \ub300\uce6d\ud0a4 \uc554\ud638\ud654\ub97c \uc9c0\uc6d0\ud558\uba70, java.security \ud328\ud0a4\uc9c0\ub97c \ud1b5\ud574 \uacf5\uac1c\ud0a4 \uc554\ud638\ud654\ub97c \uc9c0\uc6d0\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud328\ud0a4\uc9c0\ub4e4\uc740 \ub2e4\uc591\ud55c \uc554\ud638\ud654 \uc54c\uace0\ub9ac\uc998\uc744 \uc9c0\uc6d0\ud558\uba70, \uac01 \uc54c\uace0\ub9ac\uc998\ub9c8\ub2e4 \ub2e4\uc591\ud55c \uc635\uc158\ub4e4\uc774 \uc874\uc7ac\ud569\ub2c8\ub2e4. \uc774 \uc911\uc5d0\uc11c\ub3c4 \ub300\ud45c\uc801\uc778 \uc54c\uace0\ub9ac\uc998\uc73c\ub85c\ub294 AES, DES, RSA \ub4f1\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\ub370\uc774\ud130 \ubcf4\ud638\ub97c \uc704\ud55c \uc554\ud638\ud654 \uc804\ub7b5<\/h2>\n

\ub370\uc774\ud130 \ubcf4\ud638\ub97c \uc704\ud55c \uc554\ud638\ud654 \uc804\ub7b5\uc740 \ud06c\uac8c \ub450 \uac00\uc9c0\ub85c \ub098\ub20c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uccab \ubc88\uc9f8 \uc804\ub7b5\uc740 \ub370\uc774\ud130\ub97c \uc554\ud638\ud654\ud558\uc5ec \uc800\uc7a5\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc774\ub294 \ub370\uc774\ud130\uac00 \uc720\ucd9c\ub418\ub354\ub77c\ub3c4 \uc554\ud638\ud654\ub41c \ub370\uc774\ud130\uac00 \uc720\ucd9c\ub418\uae30 \ub54c\ubb38\uc5d0 \ud574\ucee4\ub4e4\uc774 \ub370\uc774\ud130\ub97c \uc774\uc6a9\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. \ub450 \ubc88\uc9f8 \uc804\ub7b5\uc740 \ub370\uc774\ud130\ub97c \uc804\uc1a1\ud560 \ub54c \uc554\ud638\ud654\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc774\ub294 \ub370\uc774\ud130\uac00 \uc804\uc1a1\ub418\ub294 \ub3c4\uc911\uc5d0 \ud574\ucee4\ub4e4\uc774 \ub370\uc774\ud130\ub97c \ud0c8\ucde8\ud558\uc5ec \uc774\uc6a9\ud558\ub294 \uac83\uc744 \ubc29\uc9c0\ud569\ub2c8\ub2e4.<\/p>\n

\uc554\ud638\ud654 \uc804\ub7b5\uc744 \uc120\ud0dd\ud560 \ub54c\ub294 \uc554\ud638\ud654 \uc54c\uace0\ub9ac\uc998\uacfc \ud0a4 \uad00\ub9ac \ubc29\ubc95, \uadf8\ub9ac\uace0 \ub370\uc774\ud130 \uc804\uc1a1 \ubc29\uc2dd \ub4f1\uc744 \uace0\ub824\ud574\uc57c \ud569\ub2c8\ub2e4. \uc554\ud638\ud654 \uc54c\uace0\ub9ac\uc998\uc740 \ubcf4\uc548\uc131\uacfc \uc18d\ub3c4, \ud0a4\uc758 \uae38\uc774 \ub4f1\uc744 \uace0\ub824\ud558\uc5ec \uc120\ud0dd\ud574\uc57c \ud558\uba70, \ud0a4 \uad00\ub9ac \ubc29\ubc95\uc740 \ud0a4\uac00 \uc720\ucd9c\ub418\uc9c0 \uc54a\ub3c4\ub85d \ubcf4\uc548\uc801\uc778 \uc870\uce58\ub97c \ucde8\ud574\uc57c \ud569\ub2c8\ub2e4. \ub370\uc774\ud130 \uc804\uc1a1 \ubc29\uc2dd\uc740 \ub370\uc774\ud130 \uc804\uc1a1 \uc911\uc5d0 \ub370\uc774\ud130\uac00 \uc720\ucd9c\ub420 \uac00\ub2a5\uc131\uc744 \uace0\ub824\ud558\uc5ec \uc120\ud0dd\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n

\uc790\ubc14 \uc554\ud638\ud654 \uae30\uc220 \uc801\uc6a9 \ubc29\ubc95<\/h2>\n

\uc790\ubc14 \uc554\ud638\ud654 \uae30\uc220\uc744 \uc801\uc6a9\ud558\uae30 \uc704\ud574\uc11c\ub294 javax.crypto \ud328\ud0a4\uc9c0\uc640 java.security \ud328\ud0a4\uc9c0\ub97c \uc774\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4. \ub300\uce6d\ud0a4 \uc554\ud638\ud654\ub97c \uc0ac\uc6a9\ud558\ub294 \uacbd\uc6b0\uc5d0\ub294 javax.crypto \ud328\ud0a4\uc9c0\uc758 Cipher \ud074\ub798\uc2a4\ub97c \uc774\uc6a9\ud558\uba74 \ub429\ub2c8\ub2e4. \uc774 \ud074\ub798\uc2a4\ub294 \uc554\ud638\ud654\uc640 \ubcf5\ud638\ud654\ub97c \ubaa8\ub450 \uc9c0\uc6d0\ud558\uba70, \ub2e4\uc591\ud55c \uc554\ud638\ud654 \uc54c\uace0\ub9ac\uc998\uacfc \ubaa8\ub4dc\ub97c \uc9c0\uc6d0\ud569\ub2c8\ub2e4.<\/p>\n

import javax.crypto.Cipher;\nimport javax.crypto.spec.SecretKeySpec;\n\npublic class AESExample {\n    public static void main(String[] args) throws Exception {\n        String plainText = \"This is a plain text\";\n        String key = \"This is a secret key\";\n        byte[] keyBytes = key.getBytes();\n        SecretKeySpec secretKeySpec = new SecretKeySpec(keyBytes, \"AES\");\n        Cipher cipher = Cipher.getInstance(\"AES\/ECB\/PKCS5Padding\");\n        cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec);\n        byte[] encryptedBytes = cipher.doFinal(plainText.getBytes());\n        System.out.println(\"Encrypted text: \" + new String(encryptedBytes));\n    }\n}<\/code><\/pre>\n
\uc704\uc758 \ucf54\ub4dc\ub294 AES \uc54c\uace0\ub9ac\uc998\uc744 \uc774\uc6a9\ud558\uc5ec \ub370\uc774\ud130\ub97c \uc554\ud638\ud654\ud558\ub294 \uc608\uc81c\uc785\ub2c8\ub2e4. \uc774 \ucf54\ub4dc\uc5d0\uc11c\ub294 "This is a plain text"\ub77c\ub294 \ubb38\uc790\uc5f4\uc744 AES \uc54c\uace0\ub9ac\uc998\uacfc ECB \ubaa8\ub4dc, PKCS5 \ud328\ub529\uc744 \uc774\uc6a9\ud558\uc5ec \uc554\ud638\ud654\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\uacf5\uac1c\ud0a4 \uc554\ud638\ud654\ub97c \uc0ac\uc6a9\ud558\ub294 \uacbd\uc6b0\uc5d0\ub294 java.security \ud328\ud0a4\uc9c0\uc758 KeyPairGenerator \ud074\ub798\uc2a4\ub97c \uc774\uc6a9\ud558\uc5ec \uacf5\uac1c\ud0a4\uc640 \uac1c\uc778\ud0a4\ub97c \uc0dd\uc131\ud574\uc57c \ud569\ub2c8\ub2e4. \uc774 \ud074\ub798\uc2a4\ub294 \ub2e4\uc591\ud55c \uacf5\uac1c\ud0a4 \uc54c\uace0\ub9ac\uc998\uc744 \uc9c0\uc6d0\ud558\uba70, KeyPairGenerator.getInstance() \uba54\uc11c\ub4dc\ub97c \uc774\uc6a9\ud558\uc5ec \uc54c\uace0\ub9ac\uc998\uc744 \uc120\ud0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
import java.security.KeyPair;\nimport java.security.KeyPairGenerator;\nimport java.security.PrivateKey;\nimport java.security.PublicKey;\n\npublic class RSAExample {\n    public static void main(String[] args) throws Exception {\n        KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance(\"RSA\");\n        keyPairGenerator.initialize(2048);\n        KeyPair keyPair = keyPairGenerator.generateKeyPair();\n        PublicKey publicKey = keyPair.getPublic();\n        PrivateKey privateKey = keyPair.getPrivate();\n        System.out.println(\"Public key: \" + publicKey);\n        System.out.println(\"Private key: \" + privateKey);\n    }\n}<\/code><\/pre>\n
\uc704\uc758 \ucf54\ub4dc\ub294 RSA \uc54c\uace0\ub9ac\uc998\uc744 \uc774\uc6a9\ud558\uc5ec \uacf5\uac1c\ud0a4\uc640 \uac1c\uc778\ud0a4\ub97c \uc0dd\uc131\ud558\ub294 \uc608\uc81c\uc785\ub2c8\ub2e4. \uc774 \ucf54\ub4dc\uc5d0\uc11c\ub294 2048\ube44\ud2b8\uc758 \ud0a4\ub97c \uc0dd\uc131\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\uc554\ud638\ud654 \uae30\uc220\uc744 \ud65c\uc6a9\ud55c \ub370\uc774\ud130 \ubcf4\uc548\uc758 \uc911\uc694\uc131<\/h2>\n
\uc554\ud638\ud654 \uae30\uc220\uc744 \ud65c\uc6a9\ud55c \ub370\uc774\ud130 \ubcf4\uc548\uc740 \ubaa8\ub4e0 \uae30\uc5c5\uc5d0\uac8c \uc911\uc694\ud569\ub2c8\ub2e4. \ub370\uc774\ud130 \uc720\ucd9c\ub85c \uc778\ud55c \ud53c\ud574\ub294 \uae30\uc5c5\uc5d0 \ud070 \uc190\uc2e4\uc744 \uac00\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud53c\ud574\ub97c \uc608\ubc29\ud558\uae30 \uc704\ud574\uc11c\ub294 \uc554\ud638\ud654\ub97c \uc774\uc6a9\ud558\uc5ec \ub370\uc774\ud130\ub97c \ubcf4\ud638\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n
\ub370\uc774\ud130 \ubcf4\uc548\uc744 \uc704\ud574\uc11c\ub294 \uc554\ud638\ud654 \uae30\uc220 \ubfd0\ub9cc \uc544\ub2c8\ub77c, \ub370\uc774\ud130\uc758 \uc774\uc6a9\uacfc \ubcf4\uad00, \uadf8\ub9ac\uace0 \uc804\uc1a1 \uacfc\uc815\uc5d0\uc11c\uc758 \ubcf4\uc548\uc801\uc778 \uc870\uce58\ub3c4 \ud544\uc694\ud569\ub2c8\ub2e4. \uc774\ub97c \uc704\ud574\uc11c\ub294 \ub370\uc774\ud130 \ubcf4\ud638\uc5d0 \ub300\ud55c \uad50\uc721\uacfc \ud568\uaed8 \ubcf4\uc548\uc801\uc778 \uc870\uce58\ub97c \ucde8\ud560 \uc218 \uc788\ub294 \uc778\ud504\ub77c\uc640 \uc2dc\uc2a4\ud15c\ub3c4 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n
\uc790\ubc14 \uc554\ud638\ud654 \uae30\uc220\uc744 \uc774\uc6a9\ud558\uc5ec \ub370\uc774\ud130\ub97c \ubcf4\ud638\ud558\ub294 \ubc29\ubc95\uc740 \ub9e4\uc6b0 \uc720\uc6a9\ud569\ub2c8\ub2e4. \uc774 \uae30\uc220\uc744 \ud65c\uc6a9\ud558\uba74 \ub370\uc774\ud130\ub97c \uc548\uc804\ud558\uac8c \ubcf4\ud638\ud560 \uc218 \uc788\uc73c\uba70, \ubcf4\uc548\uc801\uc778 \uc870\uce58\ub97c \ucde8\ud560 \uc218 \uc788\ub294 \ub2e4\uc591\ud55c \ubc29\ubc95\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c \ubaa8\ub4e0 \uae30\uc5c5\uc5d0\uc11c\ub294 \uc790\ubc14 \uc554\ud638\ud654 \uae30\uc220\uc744 \uc801\uadf9\uc801\uc73c\ub85c \ud65c\uc6a9\ud558\uc5ec \ub370\uc774\ud130 \ubcf4\ud638\uc5d0 \ub300\ud55c \ub300\ucc45\uc744 \ub9c8\ub828\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"
\uc790\ubc14 \uc554\ud638\ud654 \uae30\uc220\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub370\uc774\ud130 \ubcf4\ud638\ub97c \uac15\ud654\ud558\uace0 \uc815\ubcf4 \uc720\ucd9c\uc744 \ubc29\uc9c0\ud558\ub294 \uc554\ud638\ud654 \uc804\ub7b5\uc744 \uad6c\ud604\ud558\ub294 \ubc29\ubc95\uc744 \uc0b4\ud3b4 \ubd05\uc2dc\ub2e4.<\/p>\n","protected":false},"author":1,"featured_media":12882,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1957],"tags":[5898,2105,2188,2079,5932,3888,2584,2144,5979],"class_list":["post-35832","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-development","tag-backend","tag-java","tag-public","tag-security","tag-spring-boot","tag-static","tag-system","tag-web","tag-5979"],"acf":[],"_links":{"self":[{"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/posts\/35832","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/comments?post=35832"}],"version-history":[{"count":1,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/posts\/35832\/revisions"}],"predecessor-version":[{"id":35851,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/posts\/35832\/revisions\/35851"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/media\/12882"}],"wp:attachment":[{"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/media?parent=35832"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/categories?post=35832"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/tags?post=35832"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}