增加所有文件

middleware/checksum/md5.h

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+/**
+ * @file chsum.h
+ *
+ * Copyright (c) 2021 Semidrive Semiconductor.
+ * All rights reserved.
+ *
+ * Description:
+ *
+ * Revision History:
+ * -----------------
+ */
+
+#ifndef __MD5_H
+#define __MD5_H
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+#include <compiler.h>
+
+#define MD5_LEN 16
+typedef unsigned int __u32;
+
+struct MD5Context {
+    __u32 buf[4];
+    __u32 bits[2];
+    union {
+        unsigned char in[64];
+        __u32 in32[16];
+    };
+};
+
+/*
+ * Calculate and store in 'output' the MD5 digest of 'len' bytes at
+ * 'input'. 'output' must have enough space to hold 16 bytes.
+ */
+void md5(const unsigned char *input, const int len, unsigned char output[16]);
+
+/*
+ * Start MD5 accumulation.  Set bit count to 0 and buffer to mysterious
+ * initialization constants.
+ */
+void MD5Init(struct MD5Context *ctx);
+
+/*
+ * Update context to reflect the concatenation of another buffer full
+ * of bytes.
+ */
+void MD5Update(struct MD5Context *ctx, unsigned char const *buf, unsigned len);
+
+/*
+ * Final wrapup - pad to 64-byte boundary with the bit pattern
+ * 1 0* (64-bit count of bits processed, MSB-first)
+ */
+void MD5Final(unsigned char digest[16], struct MD5Context *ctx);
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif