diff --git a/src/main/java/com/cisd/tms/modules/openapi/service/controller/OpenApiController.java b/src/main/java/com/cisd/tms/modules/openapi/service/controller/OpenApiController.java
new file mode 100644
index 0000000..664d41d
--- /dev/null
+++ b/src/main/java/com/cisd/tms/modules/openapi/service/controller/OpenApiController.java
@@ -0,0 +1,36 @@
+package com.cisd.tms.modules.openapi.service.controller;
+
+
+import com.cisd.tms.common.api.ApiResponse;
+import com.cisd.tms.modules.auth.enums.AuthLevel;
+import com.cisd.tms.modules.auth.enums.RoleCode;
+import com.cisd.tms.modules.auth.security.RequireInternalAuth;
+import com.cisd.tms.modules.cert.dto.CrlImportTaskDetailRequest;
+import com.cisd.tms.modules.cert.dto.CrlImportTaskResponse;
+import com.cisd.tms.modules.openapi.service.dto.RawSignRequest;
+import com.cisd.tms.modules.openapi.service.impl.OpenApiService;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import jakarta.validation.Valid;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/api/v1/openapi")
+@Tag(name = "OpenApi 管理", description = "对外开放接口")
+public class OpenApiController {
+
+    private OpenApiService openApiService;
+
+
+    @PostMapping("/rawSign")
+    @Operation(summary = "裸签名", description = "基于 SM3 SM2 算法编制罗签名")
+    public ApiResponse<String> rawSign(@Valid @RequestBody RawSignRequest request) {
+
+        String signature = openApiService.rawSign();
+        return ApiResponse.success(signature);
+    }
+
+}
diff --git a/src/main/java/com/cisd/tms/modules/openapi/service/dto/RawSignRequest.java b/src/main/java/com/cisd/tms/modules/openapi/service/dto/RawSignRequest.java
new file mode 100644
index 0000000..7248293
--- /dev/null
+++ b/src/main/java/com/cisd/tms/modules/openapi/service/dto/RawSignRequest.java
@@ -0,0 +1,19 @@
+package com.cisd.tms.modules.openapi.service.dto;
+
+import lombok.Data;
+
+/**
+ * RawSignRequest
+ */
+@Data
+public class RawSignRequest {
+    /**
+     * 证书 DN（Distinguished Name）
+     */
+    private String dn;
+    /**
+     * 待签名原文的 Base64 编码
+     */
+    private String origBytes;
+    private String sessionId;
+}