diff --git a/include/gmssl/sha3.h b/include/gmssl/sha3.h
deleted file mode 100644
index cb546cc1..00000000
--- a/include/gmssl/sha3.h
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
- *  Copyright 2014-2022 The GmSSL Project. All Rights Reserved.
- *
- *  Licensed under the Apache License, Version 2.0 (the License); you may
- *  not use this file except in compliance with the License.
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- */
-
-
-
-#ifndef GMSSL_SHA3_H
-#define GMSSL_SHA3_H
-
-
-#include <string.h>
-#include <stdint.h>
-#include <sys/types.h>
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-#define SHA3_KECCAK_P_SIZE (1600/8)
-
-#define SHA3_224_DIGEST_SIZE (224/8)
-#define SHA3_256_DIGEST_SIZE (256/8)
-#define SHA3_384_DIGEST_SIZE (384/8)
-#define SHA3_512_DIGEST_SIZE (512/8)
-
-#define SHA3_224_CAPACITY (SHA3_224_DIGEST_SIZE * 2)
-#define SHA3_256_CAPACITY (SHA3_256_DIGEST_SIZE * 2)
-#define SHA3_384_CAPACITY (SHA3_384_DIGEST_SIZE * 2)
-#define SHA3_512_CAPACITY (SHA3_512_DIGEST_SIZE * 2)
-
-#define SHA3_224_BLOCK_SIZE (SHA3_KECCAK_P_SIZE - SHA3_224_CAPACITY) // 144
-#define SHA3_256_BLOCK_SIZE (SHA3_KECCAK_P_SIZE - SHA3_224_CAPACITY) // 136
-#define SHA3_384_BLOCK_SIZE (SHA3_KECCAK_P_SIZE - SHA3_224_CAPACITY) // 104
-#define SHA3_512_BLOCK_SIZE (SHA3_KECCAK_P_SIZE - SHA3_224_CAPACITY) // 72
-
-
-typedef struct {
-	uint64_t A[5][5];
-	uint8_t buf[SHA3_224_BLOCK_SIZE];
-	int num;
-} SHA3_224_CTX;
-
-void sha3_224_init(SHA3_224_CTX *ctx);
-void sha3_224_update(SHA3_224_CTX *ctx, const uint8_t *data, size_t datalen);
-void sha3_224_finish(SHA3_224_CTX *ctx, uint8_t dgst[SHA3_224_DIGEST_SIZE]);
-
-typedef struct {
-	uint64_t A[5][5];
-	uint8_t buf[SHA3_256_BLOCK_SIZE];
-	int num;
-} SHA3_256_CTX;
-
-void sha3_256_init(SHA3_256_CTX *ctx);
-void sha3_256_update(SHA3_256_CTX *ctx, const uint8_t *data, size_t datalen);
-void sha3_256_finish(SHA3_256_CTX *ctx, uint8_t dgst[SHA3_256_DIGEST_SIZE]);
-
-typedef struct {
-	uint64_t A[5][5];
-	uint8_t buf[SHA3_384_BLOCK_SIZE];
-	int num;
-} SHA3_384_CTX;
-
-void sha3_384_init(SHA3_384_CTX *ctx);
-void sha3_384_update(SHA3_384_CTX *ctx, const uint8_t *data, size_t datalen);
-void sha3_384_finish(SHA3_384_CTX *ctx, uint8_t dgst[SHA3_384_DIGEST_SIZE]);
-
-typedef struct {
-	uint64_t A[5][5];
-	uint8_t buf[SHA3_512_BLOCK_SIZE];
-	int num;
-} SHA3_512_CTX;
-
-void sha3_512_init(SHA3_512_CTX *ctx);
-void sha3_512_update(SHA3_512_CTX *ctx, const uint8_t *data, size_t datalen);
-void sha3_512_finish(SHA3_512_CTX *ctx, uint8_t dgst[SHA3_512_DIGEST_SIZE]);
-
-void sha3_shake128(const uint8_t *in, size_t *inlen, size_t outlen, uint8_t *out);
-void sha3_shake256(const uint8_t *in, size_t *inlen, size_t outlen, uint8_t *out);
-void sha3_keccak_p(uint8_t state[SHA3_KECCAK_P_SIZE]);
-
-
-#ifdef __cplusplus
-}
-#endif
-#endif