import RT-Thread@9217865c without bsp, libcpu and components/net

components/drivers/hwcrypto/hw_bignum.h

@@ -0,0 +1,186 @@
+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2019-04-25     tyx          the first version
+ */
+
+#ifndef __HW_BIGNUM_H__
+#define __HW_BIGNUM_H__
+
+#include <hwcrypto.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct hwcrypto_bignum;
+
+/* bignum obj */
+struct hw_bignum_mpi
+{
+    int sign;                   /**< integer sign. -1 or 1 */
+    rt_size_t total;            /**< total of limbs */
+    rt_uint8_t *p;              /**< pointer to limbs */
+};
+
+struct hwcrypto_bignum_ops
+{
+    rt_err_t (*add)(struct hwcrypto_bignum *bignum_ctx,
+                    struct hw_bignum_mpi *x,
+                    const struct hw_bignum_mpi *a,
+                    const struct hw_bignum_mpi *b);             /**< x = a + b */
+    rt_err_t (*sub)(struct hwcrypto_bignum *bignum_ctx,
+                    struct hw_bignum_mpi *x,
+                    const struct hw_bignum_mpi *a,
+                    const struct hw_bignum_mpi *b);             /**< x = a - b */
+    rt_err_t (*mul)(struct hwcrypto_bignum *bignum_ctx,
+                    struct hw_bignum_mpi *x,
+                    const struct hw_bignum_mpi *a,
+                    const struct hw_bignum_mpi *b);             /**< x = a * b */
+    rt_err_t (*mulmod)(struct hwcrypto_bignum *bignum_ctx,
+                       struct hw_bignum_mpi *x,
+                       const struct hw_bignum_mpi *a,
+                       const struct hw_bignum_mpi *b,
+                       const struct hw_bignum_mpi *c);          /**< x = a * b (mod c) */
+    rt_err_t (*exptmod)(struct hwcrypto_bignum *bignum_ctx,
+                        struct hw_bignum_mpi *x,
+                        const struct hw_bignum_mpi *a,
+                        const struct hw_bignum_mpi *b,
+                        const struct hw_bignum_mpi *c);         /**< x = a ^ b (mod c) */
+};
+
+/**
+ * @brief           bignum context. Hardware driver usage
+ */
+struct hwcrypto_bignum
+{
+    struct rt_hwcrypto_ctx parent;              /**< Inheritance from hardware crypto context */
+    const struct hwcrypto_bignum_ops *ops;      /**< !! Hardware initializes this value when creating context !! */
+};
+
+/**
+ * @brief           Setting bignum default devices
+ *
+ * @return          RT_EOK on success.
+ */
+rt_err_t rt_hwcrypto_bignum_default(struct rt_hwcrypto_device *device);
+
+/**
+ * @brief           Init bignum obj
+ */
+void rt_hwcrypto_bignum_init(struct hw_bignum_mpi *n);
+
+/**
+ * @brief           free a bignum obj
+ *
+ * @param           Pointer to bignum obj
+ */
+void rt_hwcrypto_bignum_free(struct hw_bignum_mpi *n);
+
+/**
+ * @brief           Get length of bignum as an unsigned binary buffer
+ *
+ * @param n         bignum obj
+ *
+ * @return          binary buffer Length
+ */
+int rt_hwcrypto_bignum_get_len(const struct hw_bignum_mpi *n);
+
+/**
+ * @brief           Export n into unsigned binary data, big endian
+ *
+ * @param n         bignum obj
+ * @param buf       Buffer for the binary number
+ * @param len       Length of the buffer
+ *
+ * @return          export bin length
+ */
+int rt_hwcrypto_bignum_export_bin(struct hw_bignum_mpi *n, rt_uint8_t *buf, int len);
+
+/**
+ * @brief           Import n from unsigned binary data, big endian
+ *
+ * @param n         bignum obj
+ * @param buf       Buffer for the binary number
+ * @param len       Length of the buffer
+ *
+ * @return          import length.
+ */
+int rt_hwcrypto_bignum_import_bin(struct hw_bignum_mpi *n, rt_uint8_t *buf, int len);
+
+/**
+ * @brief           x = a + b
+ *
+ * @param a         bignum obj
+ * @param b         bignum obj
+ * @param c         bignum obj
+ *
+ * @return          RT_EOK on success.
+ */
+rt_err_t rt_hwcrypto_bignum_add(struct hw_bignum_mpi *x,
+                                const struct hw_bignum_mpi *a,
+                                const struct hw_bignum_mpi *b);
+
+/**
+ * @brief           x = a - b
+ *
+ * @param a         bignum obj
+ * @param b         bignum obj
+ * @param c         bignum obj
+ *
+ * @return          RT_EOK on success.
+ */
+rt_err_t rt_hwcrypto_bignum_sub(struct hw_bignum_mpi *x,
+                                const struct hw_bignum_mpi *a,
+                                const struct hw_bignum_mpi *b);
+
+/**
+ * @brief           x = a * b
+ *
+ * @param a         bignum obj
+ * @param b         bignum obj
+ * @param c         bignum obj
+ *
+ * @return          RT_EOK on success.
+ */
+rt_err_t rt_hwcrypto_bignum_mul(struct hw_bignum_mpi *x,
+                                const struct hw_bignum_mpi *a,
+                                const struct hw_bignum_mpi *b);
+
+/**
+ * @brief           x = a * b (mod c)
+ *
+ * @param a         bignum obj
+ * @param b         bignum obj
+ * @param c         bignum obj
+ *
+ * @return          RT_EOK on success.
+ */
+rt_err_t rt_hwcrypto_bignum_mulmod(struct hw_bignum_mpi *x,
+                                   const struct hw_bignum_mpi *a,
+                                   const struct hw_bignum_mpi *b,
+                                   const struct hw_bignum_mpi *c);
+
+/**
+ * @brief           x = a ^ b (mod c)
+ *
+ * @param a         bignum obj
+ * @param b         bignum obj
+ * @param c         bignum obj
+ *
+ * @return          RT_EOK on success.
+ */
+rt_err_t rt_hwcrypto_bignum_exptmod(struct hw_bignum_mpi *x,
+                                    const struct hw_bignum_mpi *a,
+                                    const struct hw_bignum_mpi *b,
+                                    const struct hw_bignum_mpi *c);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif