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e3_176_ref/drivers/include/crypto/cacc/pke/x25519.h

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+/*****************************************************************************
+ *
+ *
+ *Copyright (c) 2021-2029 Semidrive Incorporated.  All rights reserved.
+ *Software License Agreement
+ *
+ ******************************************************************************
+ */
+#ifndef X25519_H
+#define X25519_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <pke.h>
+
+extern const mont_curve_t c25519[1];
+
+/*X25519 return code*/
+enum {
+    X25519_SUCCESS = PKE_SUCCESS,
+    X25519_POINTER_NULL = PKE_SUCCESS + 0x70,
+    X25519_ZERO_ALL,
+    X25519_INVALID_INPUT,
+    X25519_INVALID_OUTPUT,
+};
+
+uint32_t x25519_get_pubkey_from_prikey(uint8_t prikey[32], uint8_t pubkey[32]);
+
+uint32_t x25519_getkey(uint8_t prikey[32], uint8_t pubkey[32]);
+
+uint32_t x25519_compute_key(uint8_t local_prikey[32], uint8_t peer_pubkey[32],
+                            uint8_t *key, uint32_t keyByteLen, KDF_FUNC kdf);
+
+void x25519_decode_scalar(uint8_t *k, uint8_t *out, uint32_t bytes);
+#ifdef __cplusplus
+}
+#endif
+
+#endif