init:初始框架

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+/*
+ * Copyright (c) 2015-2023, Texas Instruments Incorporated
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * *  Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * *  Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * *  Neither the name of Texas Instruments Incorporated nor the names of
+ *    its contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __TI_MSP_CRYPTO_H__
+#define __TI_MSP_CRYPTO_H__
+
+#include <stdint.h>
+#include "sha256sw.h"
+
+/*********************************************************************
+ * GLOBAL VARIABLES
+ */
+
+/*********************************************************************
+ * MACROS
+ */
+
+/* ECC Window Size.  Determines speed and workzone size of ECC operations.
+ Recommended setting is 3. */
+/*
+ * Measured workspace memory size with the corresponding measured measured workzone usage
+ *
+ * Window Size: 2 max Workzone 904 (0x388)
+ * Window Size: 3 max Workzone size: 1012 (0x3F4)
+ * Window Size: 4 max Workzone size: 1228 (0x4CC)
+ * Window Size: 5 max Workzone size: 1660 (0x67C)
+ *
+ * Recommended to add some safety factor for buffer overflow
+ * ex: window size 2, use size 960/3C0
+ * */
+#define SECURE_FW_ECC_WINDOW_SIZE 2
+#define ECC_WORKZONE_SIZE 960
+
+/*! Invalid ECC Signature         */
+#define SECURE_FW_ECC_STATUS_INVALID_SIGNATURE 0x5A
+/*! ECC Signature Successfully Verified  */
+#define SECURE_FW_ECC_STATUS_VALID_SIGNATURE 0xA5
+
+#define ECDSA_KEY_LEN 32  //!< Length of the ECDSA security key
+#define ECDSA_SHA_TEMPWORKZONE_LEN \
+    ECDSA_KEY_LEN *                \
+        6  //!< space for six buffers finalHash, reverseHash, pubkeyX, pubKeyY, sign1, sign2
+
+/* Offset value for number of bytes occupied by length field */
+#define SECURE_FW_ECC_KEY_OFFSET 4
+
+/* Offset of Key Length field */
+#define SECURE_FW_ECC_KEY_LEN_OFFSET 0
+
+/*!
+ * ECC key length in bytes for NIST P-256 keys.
+ */
+#define SECURE_FW_ECC_NIST_P256_KEY_LEN_IN_BYTES 32
+
+/*!
+ * ECC Workzone length in bytes for NIST P-256 key and shared secret generation.
+ * For use with ECC Window Size 3 only.  Used to store intermediary values in
+ * ECC calculations. */
+#define BIM_ECC_NIST_P256_WORKZONE_LEN_IN_BYTES 1100
+
+#ifndef SECURE_FW_ECC_NIST_P256_WORKZONE_LEN_IN_BYTES
+#define SECURE_FW_ECC_NIST_P256_WORKZONE_LEN_IN_BYTES \
+    (BIM_ECC_NIST_P256_WORKZONE_LEN_IN_BYTES)
+#endif
+
+/*! Length of Sign */
+#define SECURE_FW_SIGN_LEN 32
+
+/* Total buffer size */
+#define SECURE_FW_ECC_BUF_TOTAL_LEN(len) ((len) + SECURE_FW_ECC_KEY_OFFSET)
+
+/* Key size in uint32_t blocks */
+#define SECURE_FW_ECC_UINT32_BLK_LEN(len) (((len) + 3) / 4)
+
+/* Return Codes for the SHA256 */
+#define MSP_CRYPTO_SHA256_STATUS_SUCCESS SHA2SW_STATUS_SUCCESS
+
+#define MSP_CRYPTO_SHA256_STATUS_ERROR SHA2SW_STATUS_ERROR
+
+#define MSP_CRYPTO_SHA256_STATUS_UNSUPPORTED SHA2SW_STATUS_UNSUPPORTED
+
+#define MSP_CRYPTO_SHA256_STATUS_LENGTH_TOO_LARGE SHA2SW_STATUS_LENGTH_TOO_LARGE
+
+#define MSP_CRYPTO_SHA256_STATUS_NULL_INPUT SHA2SW_STATUS_NULL_INPUT
+
+
+void MSPCrypto_sha256_init(void);
+
+void MSPCrypto_sha256_drop(void);
+
+int MSPCrypto_sha256_update(const void *data, uint32_t data_len);
+
+int MSPCrypto_sha256_finish(uint8_t *output);
+
+void MSPCrypto_ecdsa_p256_init(void);
+
+void MSPCrypto_ecdsa_p256_drop(void);
+
+int MSPCrypto_ecdsa_p256_verify(
+    const uint8_t *pk, const uint8_t *hash, const uint8_t *sig);
+
+#endif /* __MSP_CRYPTO_H__ */