Initial commit: CCU621_M firmware project with BLE debug link support.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-07-08 17:28:36 +08:00
commit 9ceb218f80
1597 changed files with 724159 additions and 0 deletions
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+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+#ifndef _IOTX_COMMON_SHA256_H_
+#define _IOTX_COMMON_SHA256_H_
+
+#include <stdint.h>
+
+#define SHA256_DIGEST_LENGTH            (32)
+#define SHA256_BLOCK_LENGTH             (64)
+#define SHA256_SHORT_BLOCK_LENGTH       (SHA256_BLOCK_LENGTH - 8)
+#define SHA256_DIGEST_STRING_LENGTH     (SHA256_DIGEST_LENGTH * 2 + 1)
+
+/**
+ * \brief          SHA-256 context structure
+ */
+typedef struct {
+    uint32_t total[2];          /*!< number of bytes processed  */
+    uint32_t state[8];          /*!< intermediate digest state  */
+    unsigned char buffer[64];   /*!< data block being processed */
+    int is224;                  /*!< 0 => SHA-256, else SHA-224 */
+} iot_sha256_context;
+
+typedef union {
+    char sptr[8];
+    uint64_t lint;
+} u_retLen;
+
+/**
+ * \brief          Initialize SHA-256 context
+ *
+ * \param ctx      SHA-256 context to be initialized
+ */
+void utils_sha256_init(iot_sha256_context *ctx);
+
+/**
+ * \brief          Clear SHA-256 context
+ *
+ * \param ctx      SHA-256 context to be cleared
+ */
+void utils_sha256_free(iot_sha256_context *ctx);
+
+
+/**
+ * \brief          SHA-256 context setup
+ *
+ * \param ctx      context to be initialized
+ */
+void utils_sha256_starts(iot_sha256_context *ctx);
+
+/**
+ * \brief          SHA-256 process buffer
+ *
+ * \param ctx      SHA-256 context
+ * \param input    buffer holding the  data
+ * \param ilen     length of the input data
+ */
+void utils_sha256_update(iot_sha256_context *ctx, const unsigned char *input, uint32_t ilen);
+
+/**
+ * \brief          SHA-256 final digest
+ *
+ * \param ctx      SHA-256 context
+ * \param output   SHA-256 checksum result
+ */
+void utils_sha256_finish(iot_sha256_context *ctx, uint8_t output[32]);
+
+/* Internal use */
+void utils_sha256_process(iot_sha256_context *ctx, const unsigned char data[64]);
+
+/**
+ * \brief          Output = SHA-256( input buffer )
+ *
+ * \param input    buffer holding the  data
+ * \param ilen     length of the input data
+ * \param output   SHA-256 checksum result
+ */
+void utils_sha256(const uint8_t *input, uint32_t ilen, uint8_t output[32]);
+
+void utils_hmac_sha256(const uint8_t *msg, uint32_t msg_len, const uint8_t *key, uint32_t key_len, uint8_t output[32]);
+
+#endif
+
+