实现 BCSdfApiService 中 sm4 加解密接口

chsm-common/src/main/java/com/sunyard/chsm/enums/AlgMode.java

@@ -0,0 +1,36 @@
+package com.sunyard.chsm.enums;
+
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+import java.util.Arrays;
+import java.util.Objects;
+
+
+/**
+ * 算法的轮模式
+ * @author Cheney
+ */
+@Getter
+@AllArgsConstructor
+public enum AlgMode {
+    ECB("ECB", "ECB"),
+    CBC( "CBC", "CBC"),
+            ;
+
+    private final String code;
+    private final String desc;
+
+
+    public static AlgMode of(String code) {
+        if (code == null || code.trim().isEmpty()) {
+            return null;
+        }
+
+        return Arrays.stream(AlgMode.values())
+                .filter(it -> Objects.equals(it.getCode(), code))
+                .findFirst()
+                .orElse(null);
+    }
+}