新device manager工程代码上库

Signed-off-by: cao_liu_chao <caochao12@huawei.com>

utils/include/dm_random.h

@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2021 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef OHOS_DM_RANDOM_H
+#define OHOS_DM_RANDOM_H
+
+#include <string>
+
+namespace OHOS {
+namespace DistributedHardware {
+int32_t GenRandInt(int32_t randMin, int32_t randMax);
+int64_t GenRandLongLong(int64_t randMin, int64_t randMax);
+int32_t GetRandomData(uint8_t *randStr, uint32_t len);
+bool MbedtlsGenRandomStr(char *szOut, int32_t szOutLen, bool numberOnly);
+} // namespace DistributedHardware
+} // namespace OHOS
+
+#endif // OHOS_DM_RANDOM_H