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source/third_party/rocketmq-client-cpp-2.2.0-source-release/libs/signature/include/hmac.h

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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 _HMAC_HMAC_H
+#define _HMAC_HMAC_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <sys/types.h>
+
+#ifndef SHA1_DIGEST_LEN
+#define SHA1_DIGEST_LEN 20
+#endif
+
+#ifndef SHA256_DIGEST_LEN
+#define SHA256_DIGEST_LEN 32
+#endif
+
+#ifndef SHA512_DIGEST_LEN
+#define SHA512_DIGEST_LEN 64
+#endif
+
+/*
+ * hmac_sha1:
+ * hmac_sha256:
+ * hmac_sha512:
+ *	Calculate Hashed Message Authentication Code with sha1/256/512 algorithm
+ *	Caution: ret_buf should provide enough space for HMAC result.
+ *
+ *	@key [in]: the secure-key string
+ *	@key_len [in]: the length of secure-key
+ *	@data [in]: data string could be calculated.
+ *	@data_len [in]: the length of data. length is needed because strlen could not take effect.
+ *	@ret_buf [out]: HMAC result stored in ret_buf.
+ */
+
+#ifdef __cplusplus
+namespace rocketmqSignature {
+
+#endif
+
+extern int hmac_sha1(const void* key, size_t key_len, const void* data, size_t data_len, void* ret_buf);
+extern int hmac_sha256(const void* key, size_t key_len, const void* data, size_t data_len, void* ret_buf);
+extern int hmac_sha512(const void* key, size_t key_len, const void* data, size_t data_len, void* ret_buf);
+
+#ifdef __cplusplus
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif