新增3ds加密工具类、日期时间格式校验器

2024-11-07 11:34:38 +08:00
parent bfeceb42c7
commit 99925b8db3
3 changed files with 220 additions and 0 deletions
--- a/njcn-common/src/main/java/com/njcn/common/utils/sm/ThreeDesUtil.java
+++ b/njcn-common/src/main/java/com/njcn/common/utils/sm/ThreeDesUtil.java
@@ -0,0 +1,151 @@
+package com.njcn.common.utils.sm;
+
+import lombok.extern.slf4j.Slf4j;
+
+import javax.crypto.Cipher;
+import javax.crypto.SecretKey;
+import javax.crypto.spec.SecretKeySpec;
+
+/**
+ * 字符串 DESede(3DES) 加密
+ * ECB模式/使用PKCS7方式填充不足位,目前给的密钥是192位
+ * 3DES（即Triple DES）是DES向AES过渡的加密算法（1999年，NIST将3-DES指定为过渡的
+ * 加密标准），是DES的一个更安全的变形。它以DES为基本模块，通过组合分组方法设计出分组加
+ * 密算法，其具体实现如下：设Ek()和Dk()代表DES算法的加密和解密过程，K代表DES算法使用的
+ * 密钥，P代表明文，C代表密表，这样，
+ * 3DES加密过程为：C=Ek3(Dk2(Ek1(P)))
+ * 3DES解密过程为：P=Dk1((EK2(Dk3(C)))
+ *
+ * @date 2023/8/28
+ */
+@Slf4j
+public class ThreeDesUtil {
+
+    /**
+     * @param args在java中调用sun公司提供的3DES加密解密算法时，需要使
+     * 用到$JAVA_HOME/jre/lib/目录下如下的4个jar包：
+     * jce.jar
+     * security/US_export_policy.jar
+     * security/local_policy.jar
+     * ext/sunjce_provider.jar
+     * 定义加密算法,可用 DES,DESede,Blowfish
+     */
+
+    private static final String Algorithm = "DESede";
+    // 24字节的密钥
+    private static final byte[] keyBytes = {0x11, 0x22, 0x4F, 0x58, (byte) 0x88, 0x10,
+            0x40, 0x38, 0x28, 0x25, 0x79, 0x51, (byte) 0xCB, (byte) 0xDD,
+            0x55, 0x66, 0x77, 0x29, 0x74, (byte) 0x98, 0x30, 0x40, 0x36,
+            (byte) 0xE2};
+
+
+    //keybyte为加密密钥，长度为24字节
+    //src为被加密的数据缓冲区（源）
+    public static byte[] encryptMode(byte[] keybyte, byte[] src) {
+        try {
+            //生成密钥
+            SecretKey deskey = new SecretKeySpec(keybyte, Algorithm);
+            //加密
+            Cipher c1 = Cipher.getInstance(Algorithm);
+            c1.init(Cipher.ENCRYPT_MODE, deskey);
+            //在单一方面的加密或解密
+            return c1.doFinal(src);
+        } catch (java.security.NoSuchAlgorithmException e1) {
+            log.error(e1.getMessage());
+        } catch (javax.crypto.NoSuchPaddingException e2) {
+            log.error(e2.getMessage());
+        } catch (Exception e3) {
+            log.error(e3.getMessage());
+        }
+        return null;
+    }
+
+    //keybyte为加密密钥，长度为24字节
+    //src为解密后的缓冲区
+    public static byte[] decryptMode(byte[] keybyte, byte[] src) {
+        try {
+            //生成密钥
+            SecretKey deskey = new SecretKeySpec(keybyte, Algorithm);
+            //解密
+            Cipher c1 = Cipher.getInstance(Algorithm);
+            c1.init(Cipher.DECRYPT_MODE, deskey);
+            return c1.doFinal(src);
+        } catch (java.security.NoSuchAlgorithmException e1) {
+            log.error(e1.getMessage());
+        } catch (javax.crypto.NoSuchPaddingException e2) {
+            log.error(e2.getMessage());
+        } catch (Exception e3) {
+            log.error(e3.getMessage());
+        }
+        return null;
+    }
+
+    //转换成十六进制字符串
+    public static String byte2Hex(byte[] b) {
+        String hs = "";
+        String stmp = "";
+        for (int n = 0; n < b.length; n++) {
+            stmp = (Integer.toHexString(b[n] & 0XFF));
+            if (stmp.length() == 1) {
+                hs = hs + "0" + stmp;
+            } else {
+                hs = hs + stmp;
+            }
+            if (n < b.length - 1) {
+                hs = hs + ":";
+            }
+        }
+        return hs.toUpperCase();
+    }
+
+    //对数据进行3des加密
+    public static String encryptThreeDes_64(String str) {
+        byte[] encoded = encryptMode(keyBytes, str.getBytes());
+        return (new sun.misc.BASE64Encoder()).encode(encoded);
+    }
+
+
+    //字节码转换成16进制字符串
+    public static String byte2hex(byte bytes[]) {
+        StringBuffer retString = new StringBuffer();
+        for (int i = 0; i < bytes.length; ++i) {
+            retString.append(Integer.toHexString(0x0100 + (bytes[i] & 0x00FF)).substring(1).toUpperCase());
+        }
+        return retString.toString();
+    }
+
+    //将16进制字符串转换成字节码
+    public static byte[] hex2byte(String hex) {
+        byte[] bts = new byte[hex.length() / 2];
+        for (int i = 0; i < bts.length; i++) {
+            bts[i] = (byte) Integer.parseInt(hex.substring(2 * i, 2 * i + 2), 16);
+        }
+        return bts;
+    }
+
+    //对Cookie进行加密
+    public static String encryptThreeDes(String strencoded) {
+        byte[] encoded = encryptMode(keyBytes, strencoded.getBytes());
+        return byte2hex(encoded);
+    }
+
+    //对Cookie进行解密
+    public static String decryptThreeDes(String strdecrypt) {
+        byte[] decrypt = decryptMode(keyBytes, hex2byte(strdecrypt));
+        return new String(decrypt);
+    }
+
+
+    //判断数据完整性
+    public static Boolean hex(String psw, String strkey) {
+        boolean flag = true;
+        String key = encryptThreeDes_64(strkey);
+        if (!psw.equals(key)) {
+            flag = false;
+        }
+        return flag;
+    }
+
+
+}
+
--- a/njcn-springboot/spingboot2.3.12/src/main/java/com/njcn/web/config/DateTimeValidator.java
+++ b/njcn-springboot/spingboot2.3.12/src/main/java/com/njcn/web/config/DateTimeValidator.java
@@ -0,0 +1,41 @@
+package com.njcn.web.config;
+
+import cn.hutool.core.util.StrUtil;
+import com.njcn.web.pojo.annotation.DateTimeStrValid;
+
+import javax.validation.ConstraintValidator;
+import javax.validation.ConstraintValidatorContext;
+import java.text.SimpleDateFormat;
+
+/**
+ * @author caozehui
+ * @data 2024/11/6
+ */
+public class DateTimeValidator implements ConstraintValidator<DateTimeStrValid, String> {
+    private DateTimeStrValid dateTime;
+    @Override
+    public void initialize(DateTimeStrValid dateTime) {
+        this.dateTime = dateTime;
+    }
+
+    @Override
+    public boolean isValid(String value, ConstraintValidatorContext context) {
+        if (StrUtil.isBlank(value)) {
+            return true;
+        }
+        String format = dateTime.format();
+
+        if (value.length() != format.length()) {
+            return false;
+        }
+
+        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format);
+
+        try {
+            simpleDateFormat.parse(value);
+        } catch (Exception e) {
+            return false;
+        }
+        return true;
+    }
+}
--- a/njcn-springboot/spingboot2.3.12/src/main/java/com/njcn/web/pojo/annotation/DateTimeStrValid.java
+++ b/njcn-springboot/spingboot2.3.12/src/main/java/com/njcn/web/pojo/annotation/DateTimeStrValid.java
@@ -0,0 +1,28 @@
+package com.njcn.web.pojo.annotation;
+
+import com.njcn.web.config.DateTimeValidator;
+
+import javax.validation.Constraint;
+import javax.validation.Payload;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * @author caozehui
+ * @date 2024/11/6
+ */
+@Target({ElementType.FIELD, ElementType.PARAMETER})
+@Retention(RetentionPolicy.RUNTIME)
+@Constraint(validatedBy = DateTimeValidator.class)
+public @interface DateTimeStrValid {
+    String message() default "时间格式错误";
+
+    String format() default "yyyy-MM-dd";
+
+    Class<?>[] groups() default {};
+
+    Class<? extends Payload>[] payload() default {};
+
+}