{"id":810,"date":"2024-12-30T13:24:24","date_gmt":"2024-12-30T05:24:24","guid":{"rendered":"https:\/\/www.ikaros.love\/?p=810"},"modified":"2024-12-30T13:24:24","modified_gmt":"2024-12-30T05:24:24","slug":"%e5%a6%82%e4%bd%95%e5%af%b9%e6%91%98%e8%a6%81%e7%ae%97%e6%b3%95%e8%bf%9b%e8%a1%8c%e5%8a%a0%e7%9b%90","status":"publish","type":"post","link":"https:\/\/www.ikaros.love\/?p=810","title":{"rendered":"\u5982\u4f55\u5bf9\u6458\u8981\u7b97\u6cd5\u8fdb\u884c\u52a0\u76d0"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

\u5728\u524d\u9762\u8bb2\u5230\u54c8\u5e0c\u7b97\u6cd5\u65f6\uff0c\u6211\u4eec\u8bf4\uff0c\u5b58\u50a8\u7528\u6237\u7684\u54c8\u5e0c\u53e3\u4ee4\u65f6\uff0c\u8981\u52a0\u76d0\u5b58\u50a8\uff0c\u76ee\u7684\u5c31\u5728\u4e8e\u62b5\u5fa1\u5f69\u8679\u8868\u653b\u51fb\u3002<\/p>\n\n\n\n

\u6211\u4eec\u56de\u987e\u4e00\u4e0b\u54c8\u5e0c\u7b97\u6cd5\uff1a<\/p>\n\n\n\n

digest = hash(input)\n<\/code><\/pre>\n\n\n\n
\u6b63\u662f\u56e0\u4e3a\u76f8\u540c\u7684\u8f93\u5165\u4f1a\u4ea7\u751f\u76f8\u540c\u7684\u8f93\u51fa\uff0c\u6211\u4eec\u52a0\u76d0\u7684\u76ee\u7684\u5c31\u5728\u4e8e\uff0c\u4f7f\u5f97\u8f93\u5165\u6709\u6240\u53d8\u5316\uff1a<\/p>\n\n\n\n
digest = hash(salt + input)\n<\/code><\/pre>\n\n\n\n
\u8fd9\u4e2asalt\u53ef\u4ee5\u770b\u4f5c\u662f\u4e00\u4e2a\u989d\u5916\u7684\u201c\u8ba4\u8bc1\u7801\u201d\uff0c\u540c\u6837\u7684\u8f93\u5165\uff0c\u4e0d\u540c\u7684\u8ba4\u8bc1\u7801\uff0c\u4f1a\u4ea7\u751f\u4e0d\u540c\u7684\u8f93\u51fa\u3002\u56e0\u6b64\uff0c\u8981\u9a8c\u8bc1\u8f93\u51fa\u7684\u54c8\u5e0c\uff0c\u5fc5\u987b\u540c\u65f6\u63d0\u4f9b\u201c\u8ba4\u8bc1\u7801\u201d\u3002<\/p>\n\n\n\n
Hmac\u7b97\u6cd5\u5c31\u662f\u4e00\u79cd\u57fa\u4e8e\u5bc6\u94a5\u7684\u6d88\u606f\u8ba4\u8bc1\u7801\u7b97\u6cd5\uff0c\u5b83\u7684\u5168\u79f0\u662fHash-based Message Authentication Code\uff0c\u662f\u4e00\u79cd\u66f4\u5b89\u5168\u7684\u6d88\u606f\u6458\u8981\u7b97\u6cd5\u3002<\/p>\n\n\n\n
Hmac\u7b97\u6cd5\u603b\u662f\u548c\u67d0\u79cd\u54c8\u5e0c\u7b97\u6cd5\u914d\u5408\u8d77\u6765\u7528\u7684\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u4f7f\u7528MD5\u7b97\u6cd5\uff0c\u5bf9\u5e94\u7684\u5c31\u662fHmacMD5\u7b97\u6cd5\uff0c\u5b83\u76f8\u5f53\u4e8e\u201c\u52a0\u76d0\u201d\u7684MD5\uff1a<\/p>\n\n\n\n
HmacMD5 \u2248 md5(secure_random_key, input)\n<\/code><\/pre>\n\n\n\n
\u56e0\u6b64\uff0cHmacMD5\u53ef\u4ee5\u770b\u4f5c\u5e26\u6709\u4e00\u4e2a\u5b89\u5168\u7684key\u7684MD5\u3002\u4f7f\u7528HmacMD5\u800c\u4e0d\u662f\u7528MD5\u52a0salt\uff0c\u6709\u5982\u4e0b\u597d\u5904\uff1a<\/p>\n\n\n\n
    \n
  • HmacMD5\u4f7f\u7528\u7684key\u957f\u5ea6\u662f64\u5b57\u8282\uff0c\u66f4\u5b89\u5168\uff1b<\/li>\n\n\n\n
  • Hmac\u662f\u6807\u51c6\u7b97\u6cd5\uff0c\u540c\u6837\u9002\u7528\u4e8eSHA-1\u7b49\u5176\u4ed6\u54c8\u5e0c\u7b97\u6cd5\uff1b<\/li>\n\n\n\n
  • Hmac\u8f93\u51fa\u548c\u539f\u6709\u7684\u54c8\u5e0c\u7b97\u6cd5\u957f\u5ea6\u4e00\u81f4\u3002<\/li>\n<\/ul>\n\n\n\n
    \u53ef\u89c1\uff0cHmac\u672c\u8d28\u4e0a\u5c31\u662f\u628akey\u6df7\u5165\u6458\u8981\u7684\u7b97\u6cd5\u3002\u9a8c\u8bc1\u6b64\u54c8\u5e0c\u65f6\uff0c\u9664\u4e86\u539f\u59cb\u7684\u8f93\u5165\u6570\u636e\uff0c\u8fd8\u8981\u63d0\u4f9bkey\u3002<\/p>\n\n\n\n
    \u4e3a\u4e86\u4fdd\u8bc1\u5b89\u5168\uff0c\u6211\u4eec\u4e0d\u4f1a\u81ea\u5df1\u6307\u5b9akey\uff0c\u800c\u662f\u901a\u8fc7Java\u6807\u51c6\u5e93\u7684KeyGenerator\u751f\u6210\u4e00\u4e2a\u5b89\u5168\u7684\u968f\u673a\u7684key\u3002\u4e0b\u9762\u662f\u4f7f\u7528HmacMD5\u7684\u4ee3\u7801\uff1a<\/p>\n\n\n\n
    import javax.crypto.*;\nimport java.util.HexFormat;\n\npublic class Main {\n    public static void main(String[] args) throws Exception {\n        KeyGenerator keyGen = KeyGenerator.getInstance(\"HmacMD5\");\n        SecretKey key = keyGen.generateKey();\n        \/\/ \u6253\u5370\u968f\u673a\u751f\u6210\u7684key:\n        byte[] skey = key.getEncoded();\n        System.out.println(HexFormat.of().formatHex(skey));\n        Mac mac = Mac.getInstance(\"HmacMD5\");\n        mac.init(key);\n        mac.update(\"HelloWorld\".getBytes(\"UTF-8\"));\n        byte[] result = mac.doFinal();\n        System.out.println(HexFormat.of().formatHex(result));\n    }\n}\n<\/code><\/pre>\n\n\n\n
    \u548cMD5\u76f8\u6bd4\uff0c\u4f7f\u7528HmacMD5\u7684\u6b65\u9aa4\u662f\uff1a<\/p>\n\n\n\n
      \n
    1. \u901a\u8fc7\u540d\u79f0HmacMD5<\/code>\u83b7\u53d6KeyGenerator<\/code>\u5b9e\u4f8b\uff1b<\/li>\n\n\n\n
    2. \u901a\u8fc7KeyGenerator<\/code>\u521b\u5efa\u4e00\u4e2aSecretKey<\/code>\u5b9e\u4f8b\uff1b<\/li>\n\n\n\n
    3. \u901a\u8fc7\u540d\u79f0HmacMD5<\/code>\u83b7\u53d6Mac<\/code>\u5b9e\u4f8b\uff1b<\/li>\n\n\n\n
    4. \u7528SecretKey<\/code>\u521d\u59cb\u5316Mac<\/code>\u5b9e\u4f8b\uff1b<\/li>\n\n\n\n
    5. \u5bf9Mac<\/code>\u5b9e\u4f8b\u53cd\u590d\u8c03\u7528update(byte[])<\/code>\u8f93\u5165\u6570\u636e\uff1b<\/li>\n\n\n\n
    6. \u8c03\u7528Mac<\/code>\u5b9e\u4f8b\u7684doFinal()<\/code>\u83b7\u53d6\u6700\u7ec8\u7684\u54c8\u5e0c\u503c\u3002<\/li>\n<\/ol>\n\n\n\n
      \u6211\u4eec\u53ef\u4ee5\u7528Hmac\u7b97\u6cd5\u53d6\u4ee3\u539f\u6709\u7684\u81ea\u5b9a\u4e49\u7684\u52a0\u76d0\u7b97\u6cd5\uff0c\u56e0\u6b64\uff0c\u5b58\u50a8\u7528\u6237\u540d\u548c\u53e3\u4ee4\u7684\u6570\u636e\u5e93\u7ed3\u6784\u5982\u4e0b\uff1a<\/p>\n\n\n\n
      username<\/th>secret_key (64 bytes)<\/th>password<\/th><\/tr><\/thead>
      bob<\/td>a8c06e05f92e…5e16<\/td>7e0387872a57c85ef6dddbaa12f376de<\/td><\/tr>
      alice<\/td>e6a343693985…f4be<\/td>c1f929ac2552642b302e739bc0cdbaac<\/td><\/tr>
      tim<\/td>f27a973dfdc0…6003<\/td>af57651c3a8a73303515804d4af43790<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
      \u6709\u4e86Hmac\u8ba1\u7b97\u7684\u54c8\u5e0c\u548cSecretKey<\/code>\uff0c\u6211\u4eec\u60f3\u8981\u9a8c\u8bc1\u600e\u4e48\u529e\uff1f\u8fd9\u65f6\uff0cSecretKey<\/code>\u4e0d\u80fd\u4eceKeyGenerator<\/code>\u751f\u6210\uff0c\u800c\u662f\u4ece\u4e00\u4e2abyte[]<\/code>\u6570\u7ec4\u6062\u590d\uff1a<\/p>\n\n\n\n
      import javax.crypto.*;\nimport javax.crypto.spec.*;\nimport java.util.HexFormat;\n\npublic class Main {\n    public static void main(String[] args) throws Exception {\n        byte[] hkey = HexFormat.of().parseHex(\n                \"b648ee779d658c420420d86291ec70f5\" + \n                \"cf97521c740330972697a8fad0b55f5c\" + \n                \"5a7924e4afa99d8c5883e07d7c3f9ed0\" + \n                \"76aa544d25ed2f5ceea59dcc122babc8\");\n        SecretKey key = new SecretKeySpec(hkey, \"HmacMD5\");\n        Mac mac = Mac.getInstance(\"HmacMD5\");\n        mac.init(key);\n        mac.update(\"HelloWorld\".getBytes(\"UTF-8\"));\n        byte[] result = mac.doFinal();\n        System.out.println(HexFormat.of().formatHex(result)); \/\/ 4af40be7864efaae1473a4c601b650ae\n    }\n}\n<\/code><\/pre>\n\n\n\n
      \u6062\u590dSecretKey<\/code>\u7684\u8bed\u53e5\u5c31\u662fnew SecretKeySpec(hkey, \"HmacMD5\")<\/code>\u3002<\/p>\n\n\n\n
      \u5728Java\u4e2d\u8ba1\u7b97\u54c8\u5e0c\u503c\u65f6\uff0c\u52a0\u76d0\uff08salting\uff09\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u5b89\u5168\u63aa\u65bd\uff0c\u7528\u4e8e\u589e\u52a0\u54c8\u5e0c\u503c\u7684\u590d\u6742\u6027\uff0c\u9632\u6b62\u5f69\u8679\u8868\u653b\u51fb\u3002\u52a0\u76d0\u7684\u57fa\u672c\u601d\u60f3\u662f\u5728\u539f\u59cb\u6570\u636e\uff08\u901a\u5e38\u662f\u5bc6\u7801\uff09\u4e2d\u52a0\u5165\u4e00\u4e2a\u968f\u673a\u751f\u6210\u7684\u5b57\u7b26\u4e32\uff08\u5373\u76d0\uff09\uff0c\u7136\u540e\u518d\u8fdb\u884c\u54c8\u5e0c\u8ba1\u7b97\u3002<\/p>\n\n\n\n
      \u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u5728Java\u4e2d\u4f7f\u7528\u52a0\u76d0\u6765\u8ba1\u7b97\u54c8\u5e0c\u503c\uff1a<\/p>\n\n\n\n
        \n
      1. \u751f\u6210\u76d0<\/strong>\uff1a\u4f7f\u7528SecureRandom<\/code>\u7c7b\u751f\u6210\u4e00\u4e2a\u968f\u673a\u7684\u76d0\u3002<\/li>\n\n\n\n
      2. \u5c06\u76d0\u548c\u539f\u59cb\u6570\u636e\u7ec4\u5408<\/strong>\uff1a\u5c06\u751f\u6210\u7684\u76d0\u4e0e\u539f\u59cb\u6570\u636e\uff08\u5982\u5bc6\u7801\uff09\u7ec4\u5408\u5728\u4e00\u8d77\u3002<\/li>\n\n\n\n
      3. \u8ba1\u7b97\u54c8\u5e0c\u503c<\/strong>\uff1a\u4f7f\u7528MessageDigest<\/code>\u7c7b\u8ba1\u7b97\u7ec4\u5408\u540e\u7684\u6570\u636e\u7684\u54c8\u5e0c\u503c\u3002<\/li>\n\n\n\n
      4. \u5b58\u50a8\u76d0\u548c\u54c8\u5e0c\u503c<\/strong>\uff1a\u901a\u5e38\u4f1a\u5c06\u751f\u6210\u7684\u76d0\u548c\u8ba1\u7b97\u5f97\u5230\u7684\u54c8\u5e0c\u503c\u4e00\u8d77\u5b58\u50a8\uff0c\u4ee5\u4fbf\u540e\u7eed\u9a8c\u8bc1\u3002<\/li>\n<\/ol>\n\n\n\n
        \u4e0b\u9762\u662f\u4e00\u4e2a\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\uff1a<\/p>\n\n\n\n
        import java.security.MessageDigest;\nimport java.security.NoSuchAlgorithmException;\nimport java.security.SecureRandom;\nimport java.util.Base64;\n\npublic class HashWithSalt {\n\n    \/\/ \u751f\u6210\u4e00\u4e2a\u968f\u673a\u7684\u76d0\n    public static byte[] generateSalt() {\n        SecureRandom random = new SecureRandom();\n        byte[] salt = new byte[16]; \/\/ \u76d0\u7684\u957f\u5ea6\u53ef\u4ee5\u8c03\u6574\n        random.nextBytes(salt);\n        return salt;\n    }\n\n    \/\/ \u4f7f\u7528\u76d0\u548c\u539f\u59cb\u6570\u636e\u8ba1\u7b97\u54c8\u5e0c\u503c\n    public static byte[] hashWithSalt(byte[] salt, String password) throws NoSuchAlgorithmException {\n        MessageDigest digest = MessageDigest.getInstance(\"SHA-256\");\n        digest.reset();\n        digest.update(salt);\n        byte[] hash = digest.digest(password.getBytes());\n        return hash;\n    }\n\n    \/\/ \u5c06\u5b57\u8282\u6570\u7ec4\u8f6c\u6362\u4e3aBase64\u7f16\u7801\u7684\u5b57\u7b26\u4e32\n    public static String bytesToBase64(byte[] bytes) {\n        return Base64.getEncoder().encodeToString(bytes);\n    }\n\n    \/\/ \u5c06Base64\u7f16\u7801\u7684\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5b57\u8282\u6570\u7ec4\n    public static byte[] base64ToBytes(String base64) {\n        return Base64.getDecoder().decode(base64);\n    }\n\n    public static void main(String[] args) {\n        try {\n            String password = \"mySecretPassword\";\n\n            \/\/ \u751f\u6210\u76d0\n            byte[] salt = generateSalt();\n            System.out.println(\"Generated Salt: \" + bytesToBase64(salt));\n\n            \/\/ \u8ba1\u7b97\u54c8\u5e0c\u503c\n            byte[] hashedPassword = hashWithSalt(salt, password);\n            System.out.println(\"Hashed Password: \" + bytesToBase64(hashedPassword));\n\n            \/\/ \u5b58\u50a8\u76d0\u548c\u54c8\u5e0c\u503c\uff08\u8fd9\u91cc\u5047\u8bbe\u5b58\u50a8\u4e3aBase64\u7f16\u7801\u7684\u5b57\u7b26\u4e32\uff09\n            String storedSalt = bytesToBase64(salt);\n            String storedHash = bytesToBase64(hashedPassword);\n\n            \/\/ \u9a8c\u8bc1\u8fc7\u7a0b\n            String inputPassword = \"mySecretPassword\";\n            byte[] inputSalt = base64ToBytes(storedSalt);\n            byte[] inputHashedPassword = hashWithSalt(inputSalt, inputPassword);\n\n            if (bytesToBase64(inputHashedPassword).equals(storedHash)) {\n                System.out.println(\"Password verification successful!\");\n            } else {\n                System.out.println(\"Password verification failed!\");\n            }\n        } catch (NoSuchAlgorithmException e) {\n            e.printStackTrace();\n        }\n    }\n}<\/code><\/pre>\n\n\n\n
        \u5173\u952e\u70b9\u603b\u7ed3\uff1a<\/h3>\n\n\n\n
          \n
        1. \u751f\u6210\u76d0<\/strong>\uff1a\u4f7f\u7528SecureRandom<\/code>\u751f\u6210\u4e00\u4e2a\u968f\u673a\u7684\u76d0\u3002<\/li>\n\n\n\n
        2. \u8ba1\u7b97\u54c8\u5e0c\u503c<\/strong>\uff1a\u5c06\u76d0\u548c\u539f\u59cb\u6570\u636e\u7ec4\u5408\u540e\uff0c\u4f7f\u7528MessageDigest<\/code>\u8ba1\u7b97\u54c8\u5e0c\u503c\u3002<\/li>\n\n\n\n
        3. \u5b58\u50a8\u548c\u9a8c\u8bc1<\/strong>\uff1a\u5c06\u76d0\u548c\u54c8\u5e0c\u503c\u4e00\u8d77\u5b58\u50a8\uff0c\u5e76\u5728\u9a8c\u8bc1\u65f6\u4f7f\u7528\u76f8\u540c\u7684\u76d0\u91cd\u65b0\u8ba1\u7b97\u54c8\u5e0c\u503c\u8fdb\u884c\u6bd4\u8f83\u3002<\/li>\n<\/ol>\n\n\n\n
          \u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u5373\u4f7f\u4e24\u4e2a\u7528\u6237\u4f7f\u7528\u76f8\u540c\u7684\u5bc6\u7801\uff0c\u7531\u4e8e\u76d0\u7684\u4e0d\u540c\uff0c\u4ed6\u4eec\u7684\u54c8\u5e0c\u503c\u4e5f\u4f1a\u4e0d\u540c\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u5b89\u5168\u6027\u3002<\/p>\n\n\n\n
          \u5728Java\u4e2d\u4f7f\u7528MessageDigest<\/code>\u7c7b\u8fdb\u884c\u54c8\u5e0c\u8ba1\u7b97\u65f6\uff0cdigest.update(salt);<\/code>\u8fd9\u4e00\u6b65\u7684\u4f5c\u7528\u662f\u5c06\u76d0\uff08salt\uff09\u6dfb\u52a0\u5230\u54c8\u5e0c\u8ba1\u7b97\u7684\u8fc7\u7a0b\u4e2d\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u8fd9\u4e00\u6b65\u5c06\u76d0\u7684\u6570\u636e\u66f4\u65b0\u5230MessageDigest<\/code>\u5bf9\u8c61\u7684\u5185\u90e8\u72b6\u6001\u4e2d\uff0c\u4ee5\u4fbf\u5728\u540e\u7eed\u7684\u54c8\u5e0c\u8ba1\u7b97\u4e2d\u5305\u542b\u76d0\u7684\u4fe1\u606f\u3002<\/p>\n\n\n\n
          \u4ee5\u4e0b\u662f\u8be6\u7ec6\u7684\u89e3\u91ca\uff1a<\/p>\n\n\n\n
            \n
          1. \u521d\u59cb\u5316MessageDigest<\/code>\u5bf9\u8c61<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n
               MessageDigest digest = MessageDigest.getInstance(\"SHA-256\");<\/code><\/pre>\n\n\n\n
            \u8fd9\u884c\u4ee3\u7801\u521b\u5efa\u4e86\u4e00\u4e2aMessageDigest<\/code>\u5bf9\u8c61\uff0c\u7528\u4e8e\u8ba1\u7b97SHA-256\u54c8\u5e0c\u503c\u3002<\/p>\n\n\n\n
              \n
            1. \u91cd\u7f6eMessageDigest<\/code>\u5bf9\u8c61<\/strong>\uff08\u53ef\u9009\uff09\uff1a<\/li>\n<\/ol>\n\n\n\n
                 digest.reset();<\/code><\/pre>\n\n\n\n
              \u8fd9\u884c\u4ee3\u7801\u91cd\u7f6eMessageDigest<\/code>\u5bf9\u8c61\u7684\u72b6\u6001\uff0c\u786e\u4fdd\u4e4b\u524d\u7684\u4efb\u4f55\u6570\u636e\u4e0d\u4f1a\u5f71\u54cd\u5f53\u524d\u7684\u54c8\u5e0c\u8ba1\u7b97\u3002<\/p>\n\n\n\n
                \n
              1. \u66f4\u65b0\u76d0\u5230MessageDigest<\/code>\u5bf9\u8c61<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n
                   digest.update(salt);<\/code><\/pre>\n\n\n\n
                \u8fd9\u884c\u4ee3\u7801\u5c06\u76d0\u7684\u6570\u636e\u6dfb\u52a0\u5230MessageDigest<\/code>\u5bf9\u8c61\u7684\u5185\u90e8\u72b6\u6001\u4e2d\u3002\u8fd9\u610f\u5473\u7740\u5728\u540e\u7eed\u7684\u54c8\u5e0c\u8ba1\u7b97\u4e2d\uff0c\u76d0\u7684\u6570\u636e\u4f1a\u88ab\u5305\u542b\u8fdb\u53bb\u3002<\/p>\n\n\n\n
                  \n
                1. \u66f4\u65b0\u539f\u59cb\u6570\u636e\u5230MessageDigest<\/code>\u5bf9\u8c61<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n
                     byte[] hash = digest.digest(password.getBytes());<\/code><\/pre>\n\n\n\n
                  \u8fd9\u884c\u4ee3\u7801\u5c06\u539f\u59cb\u6570\u636e\uff08\u5982\u5bc6\u7801\uff09\u7684\u6570\u636e\u6dfb\u52a0\u5230MessageDigest<\/code>\u5bf9\u8c61\u7684\u5185\u90e8\u72b6\u6001\u4e2d\uff0c\u5e76\u8ba1\u7b97\u6700\u7ec8\u7684\u54c8\u5e0c\u503c\u3002<\/p>\n\n\n\n
                  \u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u76d0\u548c\u539f\u59cb\u6570\u636e\u4e00\u8d77\u88ab\u5305\u542b\u5728\u54c8\u5e0c\u8ba1\u7b97\u4e2d\uff0c\u4ece\u800c\u751f\u6210\u4e00\u4e2a\u552f\u4e00\u7684\u54c8\u5e0c\u503c\u3002\u5373\u4f7f\u4e24\u4e2a\u7528\u6237\u4f7f\u7528\u76f8\u540c\u7684\u5bc6\u7801\uff0c\u7531\u4e8e\u76d0\u7684\u4e0d\u540c\uff0c\u4ed6\u4eec\u7684\u54c8\u5e0c\u503c\u4e5f\u4f1a\u4e0d\u540c\uff0c\u8fd9\u5927\u5927\u63d0\u9ad8\u4e86\u5b89\u5168\u6027\u3002<\/p>\n\n\n\n
                  \u793a\u4f8b\u4ee3\u7801\u89e3\u91ca<\/h3>\n\n\n\n
                  \u4ee5\u4e0b\u662f\u5b8c\u6574\u7684\u793a\u4f8b\u4ee3\u7801\uff0c\u8fdb\u4e00\u6b65\u8bf4\u660edigest.update(salt);<\/code>\u7684\u4f5c\u7528\uff1a<\/p>\n\n\n\n
                  import java.security.MessageDigest;\nimport java.security.NoSuchAlgorithmException;\nimport java.security.SecureRandom;\nimport java.util.Base64;\n\npublic class HashWithSalt {\n\n    \/\/ \u751f\u6210\u4e00\u4e2a\u968f\u673a\u7684\u76d0\n    public static byte[] generateSalt() {\n        SecureRandom random = new SecureRandom();\n        byte[] salt = new byte[16]; \/\/ \u76d0\u7684\u957f\u5ea6\u53ef\u4ee5\u8c03\u6574\n        random.nextBytes(salt);\n        return salt;\n    }\n\n    \/\/ \u4f7f\u7528\u76d0\u548c\u539f\u59cb\u6570\u636e\u8ba1\u7b97\u54c8\u5e0c\u503c\n    public static byte[] hashWithSalt(byte[] salt, String password) throws NoSuchAlgorithmException {\n        MessageDigest digest = MessageDigest.getInstance(\"SHA-256\");\n        digest.reset(); \/\/ \u53ef\u9009\uff1a\u91cd\u7f6eMessageDigest\u5bf9\u8c61\u7684\u72b6\u6001\n        digest.update(salt); \/\/ \u5c06\u76d0\u6dfb\u52a0\u5230MessageDigest\u5bf9\u8c61\u4e2d\n        byte[] hash = digest.digest(password.getBytes()); \/\/ \u8ba1\u7b97\u6700\u7ec8\u7684\u54c8\u5e0c\u503c\n        return hash;\n    }\n\n    \/\/ \u5c06\u5b57\u8282\u6570\u7ec4\u8f6c\u6362\u4e3aBase64\u7f16\u7801\u7684\u5b57\u7b26\u4e32\n    public static String bytesToBase64(byte[] bytes) {\n        return Base64.getEncoder().encodeToString(bytes);\n    }\n\n    \/\/ \u5c06Base64\u7f16\u7801\u7684\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5b57\u8282\u6570\u7ec4\n    public static byte[] base64ToBytes(String base64) {\n        return Base64.getDecoder().decode(base64);\n    }\n\n    public static void main(String[] args) {\n        try {\n            String password = \"mySecretPassword\";\n\n            \/\/ \u751f\u6210\u76d0\n            byte[] salt = generateSalt();\n            System.out.println(\"Generated Salt: \" + bytesToBase64(salt));\n\n            \/\/ \u8ba1\u7b97\u54c8\u5e0c\u503c\n            byte[] hashedPassword = hashWithSalt(salt, password);\n            System.out.println(\"Hashed Password: \" + bytesToBase64(hashedPassword));\n\n            \/\/ \u5b58\u50a8\u76d0\u548c\u54c8\u5e0c\u503c\uff08\u8fd9\u91cc\u5047\u8bbe\u5b58\u50a8\u4e3aBase64\u7f16\u7801\u7684\u5b57\u7b26\u4e32\uff09\n            String storedSalt = bytesToBase64(salt);\n            String storedHash = bytesToBase64(hashedPassword);\n\n            \/\/ \u9a8c\u8bc1\u8fc7\u7a0b\n            String inputPassword = \"mySecretPassword\";\n            byte[] inputSalt = base64ToBytes(storedSalt);\n            byte[] inputHashedPassword = hashWithSalt(inputSalt, inputPassword);\n\n            if (bytesToBase64(inputHashedPassword).equals(storedHash)) {\n                System.out.println(\"Password verification successful!\");\n            } else {\n                System.out.println(\"Password verification failed!\");\n            }\n        } catch (NoSuchAlgorithmException e) {\n            e.printStackTrace();\n        }\n    }\n}<\/code><\/pre>\n\n\n\n
                  \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0cdigest.update(salt);<\/code>\u8fd9\u4e00\u6b65\u786e\u4fdd\u4e86\u76d0\u7684\u6570\u636e\u88ab\u5305\u542b\u5728\u6700\u7ec8\u7684\u54c8\u5e0c\u8ba1\u7b97\u4e2d\uff0c\u4ece\u800c\u4f7f\u5f97\u6bcf\u4e2a\u7528\u6237\u7684\u54c8\u5e0c\u503c\u90fd\u662f\u552f\u4e00\u7684\uff0c\u5373\u4f7f\u4ed6\u4eec\u4f7f\u7528\u76f8\u540c\u7684\u5bc6\u7801\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
                  \u5728\u524d\u9762\u8bb2\u5230\u54c8\u5e0c\u7b97\u6cd5\u65f6\uff0c\u6211\u4eec\u8bf4\uff0c\u5b58...<\/p>\n","protected":false},"author":1,"featured_media":811,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[200,199,195],"_links":{"self":[{"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/posts\/810"}],"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=810"}],"version-history":[{"count":2,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/posts\/810\/revisions"}],"predecessor-version":[{"id":813,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/posts\/810\/revisions\/813"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/media\/811"}],"wp:attachment":[{"href":"https:\/\/www.ikaros.love\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=810"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=810"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=810"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}