1 files changed, 53 insertions, 0 deletions
diff --git a/lib/sec_library/include/sec_crypto_ecdh.h b/lib/sec_library/include/sec_crypto_ecdh.h
new file mode 100644
index 00000000..83f52f8c
--- /dev/null
+++ b/lib/sec_library/include/sec_crypto_ecdh.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2017-2022 Alibaba Group Holding Limited
+ */
+/******************************************************************************
+ * @file     sec_crypto_ecdh.h
+ * @brief    Header File for curve25519( a state-of-the-art Diffie-Hellman function)
+ * @version  V3.3
+ * @date     10. June 2022
+ * @model    ecdh
+ ******************************************************************************/
+#ifndef _SC_ECDH_H_
+#define _SC_ECDH_H_
+#include "sec_include_config.h"
+
+#define CONFIG_SEC_CRYPTO_ECC
+
+#ifdef CONFIG_SEC_CRYPTO_ECC
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef SEC_LIB_VERSION
+#include "drv/ecdh.h"
+#include "drv/ecc.h"
+#include "sec_crypto_ecc.h"
+#else
+#include "ecdh.h"
+#include "ecc.h"
+#include "sec_crypto_ecc.h"
+#endif
+
+/**
+  \brief       ecdh calc secret
+  \param[in]   ecc ecc handle to operate.
+  \param[in]   pubkey  Pointer to the A(or B) public key.
+  \param[out]  privkey Pointer to the B(or A) private key.
+  \param[out]  out Pointer to the share secret.
+  \param[out]  len length of the share secret.
+  \return      \ref uint32_t.
+*/
+
+uint32_t sc_ecdh_calc_secret(sc_ecc_t *ecc, uint8_t privkey[32],
+                            uint8_t pubkey[65], uint8_t out[32], 
+                            uint32_t *len, sc_ecc_curve_type type) ;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#endif
+
+#endif /* _SC_CURVE15519_H_ */