{"id":788,"date":"2024-12-27T13:08:22","date_gmt":"2024-12-27T05:08:22","guid":{"rendered":"https:\/\/www.ikaros.love\/?p=788"},"modified":"2024-12-30T12:01:29","modified_gmt":"2024-12-30T04:01:29","slug":"%e5%8f%a3%e4%bb%a4%e5%8a%a0%e5%af%86%e7%ae%97%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.ikaros.love\/?p=788","title":{"rendered":"\u5982\u4f55\u5bf9\u53e3\u4ee4\u52a0\u5bc6"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"482\" height=\"482\" src=\"https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/12\/147.png\" alt=\"\" class=\"wp-image-789\" srcset=\"https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/12\/147.png 482w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/12\/147-300x300.png 300w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/12\/147-150x150.png 150w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/12\/147-200x200.png 200w\" sizes=\"(max-width: 482px) 100vw, 482px\" \/><\/figure>\n\n\n\n<p>\u4e0a\u4e00\u8282\u6211\u4eec\u8bb2\u7684AES\u52a0\u5bc6\uff0c\u7ec6\u5fc3\u7684\u7ae5\u978b\u53ef\u80fd\u4f1a\u53d1\u73b0\uff0c\u5bc6\u94a5\u957f\u5ea6\u662f\u56fa\u5b9a\u7684128\/192\/256\u4f4d\uff0c\u800c\u4e0d\u662f\u6211\u4eec\u7528WinZip\/WinRAR\u90a3\u6837\uff0c\u968f\u4fbf\u8f93\u5165\u51e0\u4f4d\u90fd\u53ef\u4ee5\u3002<\/p>\n\n\n\n<p>\u8fd9\u662f\u56e0\u4e3a\u5bf9\u79f0\u52a0\u5bc6\u7b97\u6cd5\u51b3\u5b9a\u4e86\u53e3\u4ee4\u5fc5\u987b\u662f\u56fa\u5b9a\u957f\u5ea6\uff0c\u7136\u540e\u5bf9\u660e\u6587\u8fdb\u884c\u5206\u5757\u52a0\u5bc6\u3002\u53c8\u56e0\u4e3a\u5b89\u5168\u9700\u6c42\uff0c\u53e3\u4ee4\u957f\u5ea6\u5f80\u5f80\u90fd\u662f128\u4f4d\u4ee5\u4e0a\uff0c\u5373\u81f3\u5c1116\u4e2a\u5b57\u7b26\u3002<\/p>\n\n\n\n<p>\u4f46\u662f\u6211\u4eec\u5e73\u65f6\u4f7f\u7528\u7684\u52a0\u5bc6\u8f6f\u4ef6\uff0c\u8f93\u51656\u4f4d\u30018\u4f4d\u90fd\u53ef\u4ee5\uff0c\u96be\u9053\u52a0\u5bc6\u65b9\u5f0f\u4e0d\u4e00\u6837\uff1f<\/p>\n\n\n\n<p>\u5b9e\u9645\u4e0a\u7528\u6237\u8f93\u5165\u7684\u53e3\u4ee4\u5e76\u4e0d\u80fd\u76f4\u63a5\u4f5c\u4e3aAES\u7684\u5bc6\u94a5\u8fdb\u884c\u52a0\u5bc6\uff08\u9664\u975e\u957f\u5ea6\u6070\u597d\u662f128\/192\/256\u4f4d\uff09\uff0c\u5e76\u4e14\u7528\u6237\u8f93\u5165\u7684\u53e3\u4ee4\u4e00\u822c\u90fd\u6709\u89c4\u5f8b\uff0c\u5b89\u5168\u6027\u8fdc\u8fdc\u4e0d\u5982\u5b89\u5168\u968f\u673a\u6570\u4ea7\u751f\u7684\u968f\u673a\u53e3\u4ee4\u3002\u56e0\u6b64\uff0c\u7528\u6237\u8f93\u5165\u7684\u53e3\u4ee4\uff0c\u901a\u5e38\u8fd8\u9700\u8981\u4f7f\u7528PBE\u7b97\u6cd5\uff0c\u91c7\u7528\u968f\u673a\u6570\u6742\u51d1\u8ba1\u7b97\u51fa\u771f\u6b63\u7684\u5bc6\u94a5\uff0c\u518d\u8fdb\u884c\u52a0\u5bc6\u3002<\/p>\n\n\n\n<p>PBE\u5c31\u662fPassword Based Encryption\u7684\u7f29\u5199\uff0c\u5b83\u7684\u4f5c\u7528\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>key = generate(userPassword, secureRandomPassword);\n<\/code><\/pre>\n\n\n\n<p>PBE\u7684\u4f5c\u7528\u5c31\u662f\u628a\u7528\u6237\u8f93\u5165\u7684\u53e3\u4ee4\u548c\u4e00\u4e2a\u5b89\u5168\u968f\u673a\u7684\u53e3\u4ee4\u91c7\u7528\u6742\u51d1\u540e\u8ba1\u7b97\u51fa\u771f\u6b63\u7684\u5bc6\u94a5\u3002\u4ee5AES\u5bc6\u94a5\u4e3a\u4f8b\uff0c\u6211\u4eec\u8ba9\u7528\u6237\u8f93\u5165\u4e00\u4e2a\u53e3\u4ee4\uff0c\u7136\u540e\u751f\u6210\u4e00\u4e2a\u968f\u673a\u6570\uff0c\u901a\u8fc7PBE\u7b97\u6cd5\u8ba1\u7b97\u51fa\u771f\u6b63\u7684AES\u53e3\u4ee4\uff0c\u518d\u8fdb\u884c\u52a0\u5bc6\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class Main {\n    public static void main(String&#91;] args) throws Exception {\n        \/\/ \u628aBouncyCastle\u4f5c\u4e3aProvider\u6dfb\u52a0\u5230java.security:\n        Security.addProvider(new BouncyCastleProvider());\n        \/\/ \u539f\u6587:\n        String message = \"Hello, world!\";\n        \/\/ \u52a0\u5bc6\u53e3\u4ee4:\n        String password = \"hello12345\";\n        \/\/ 16 bytes\u968f\u673aSalt:\n        byte&#91;] salt = SecureRandom.getInstanceStrong().generateSeed(16);\n        System.out.println(HexFormat.of().formatHex(salt));\n        \/\/ \u52a0\u5bc6:\n        byte&#91;] data = message.getBytes(\"UTF-8\");\n        byte&#91;] encrypted = encrypt(password, salt, data);\n        System.out.println(\"encrypted: \" + Base64.getEncoder().encodeToString(encrypted));\n        \/\/ \u89e3\u5bc6:\n        byte&#91;] decrypted = decrypt(password, salt, encrypted);\n        System.out.println(\"decrypted: \" + new String(decrypted, \"UTF-8\"));\n    }\n\n    \/\/ \u52a0\u5bc6:\n    public static byte&#91;] encrypt(String password, byte&#91;] salt, byte&#91;] input) throws GeneralSecurityException {\n        PBEKeySpec keySpec = new PBEKeySpec(password.toCharArray());\n        SecretKeyFactory skeyFactory = SecretKeyFactory.getInstance(\"PBEwithSHA1and128bitAES-CBC-BC\");\n        SecretKey skey = skeyFactory.generateSecret(keySpec);\n        PBEParameterSpec pbeps = new PBEParameterSpec(salt, 1000);\n        Cipher cipher = Cipher.getInstance(\"PBEwithSHA1and128bitAES-CBC-BC\");\n        cipher.init(Cipher.ENCRYPT_MODE, skey, pbeps);\n        return cipher.doFinal(input);\n    }\n\n    \/\/ \u89e3\u5bc6:\n    public static byte&#91;] decrypt(String password, byte&#91;] salt, byte&#91;] input) throws GeneralSecurityException {\n        PBEKeySpec keySpec = new PBEKeySpec(password.toCharArray());\n        SecretKeyFactory skeyFactory = SecretKeyFactory.getInstance(\"PBEwithSHA1and128bitAES-CBC-BC\");\n        SecretKey skey = skeyFactory.generateSecret(keySpec);\n        PBEParameterSpec pbeps = new PBEParameterSpec(salt, 1000);\n        Cipher cipher = Cipher.getInstance(\"PBEwithSHA1and128bitAES-CBC-BC\");\n        cipher.init(Cipher.DECRYPT_MODE, skey, pbeps);\n        return cipher.doFinal(input);\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>\u4f7f\u7528PBE\u65f6\uff0c\u6211\u4eec\u8fd8\u9700\u8981\u5f15\u5165BouncyCastle\uff0c\u5e76\u6307\u5b9a\u7b97\u6cd5\u662f<code>PBEwithSHA1and128bitAES-CBC-BC<\/code>\u3002\u89c2\u5bdf\u4ee3\u7801\uff0c\u5b9e\u9645\u4e0a\u771f\u6b63\u7684AES\u5bc6\u94a5\u662f\u8c03\u7528<code>Cipher<\/code>\u7684<code>init()<\/code>\u65b9\u6cd5\u65f6\u540c\u65f6\u4f20\u5165<code>SecretKey<\/code>\u548c<code>PBEParameterSpec<\/code>\u5b9e\u73b0\u7684\u3002\u5728\u521b\u5efa<code>PBEParameterSpec<\/code>\u7684\u65f6\u5019\uff0c\u6211\u4eec\u8fd8\u6307\u5b9a\u4e86\u5faa\u73af\u6b21\u6570<code>1000<\/code>\uff0c\u5faa\u73af\u6b21\u6570\u8d8a\u591a\uff0c\u66b4\u529b\u7834\u89e3\u9700\u8981\u7684\u8ba1\u7b97\u91cf\u5c31\u8d8a\u5927\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u6211\u4eec\u628asalt\u548c\u5faa\u73af\u6b21\u6570\u56fa\u5b9a\uff0c\u5c31\u5f97\u5230\u4e86\u4e00\u4e2a\u901a\u7528\u7684\u201c\u53e3\u4ee4\u201d\u52a0\u5bc6\u8f6f\u4ef6\u3002\u5982\u679c\u6211\u4eec\u628a\u968f\u673a\u751f\u6210\u7684salt\u5b58\u50a8\u5728U\u76d8\uff0c\u5c31\u5f97\u5230\u4e86\u4e00\u4e2a\u201c\u53e3\u4ee4\u201d\u52a0USB Key\u7684\u52a0\u5bc6\u8f6f\u4ef6\uff0c\u5b83\u7684\u597d\u5904\u5728\u4e8e\uff0c\u5373\u4f7f\u7528\u6237\u4f7f\u7528\u4e86\u4e00\u4e2a\u975e\u5e38\u5f31\u7684\u53e3\u4ee4\uff0c\u6ca1\u6709USB Key\u4ecd\u7136\u65e0\u6cd5\u89e3\u5bc6\uff0c\u56e0\u4e3aUSB Key\u5b58\u50a8\u7684\u968f\u673a\u6570\u5bc6\u94a5\u5b89\u5168\u6027\u975e\u5e38\u9ad8\u3002<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e0a\u4e00\u8282\u6211\u4eec\u8bb2\u7684AES\u52a0\u5bc6\uff0c\u7ec6\u5fc3\u7684&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":789,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[205,206],"_links":{"self":[{"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/posts\/788"}],"collection":[{"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=788"}],"version-history":[{"count":2,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/posts\/788\/revisions"}],"predecessor-version":[{"id":800,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/posts\/788\/revisions\/800"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/media\/789"}],"wp:attachment":[{"href":"https:\/\/www.ikaros.love\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=788"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=788"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=788"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}