feat: add gmssl headers

include/gmssl/sm3.h

@@ -0,0 +1,89 @@
+/*
+ *  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_SM3_H
+#define GMSSL_SM3_H
+
+#include <string.h>
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+SM3 Public API
+
+	SM3_DIGEST_SIZE
+	SM3_HMAC_SIZE
+
+	SM3_CTX
+	sm3_init
+	sm3_update
+	sm3_finish
+
+	SM3_HMAC_CTX
+	sm3_hmac_init
+	sm3_hmac_update
+	sm3_hmac_finish
+
+	sm3_digest
+	sm3_hmac
+*/
+
+#define SM3_IS_BIG_ENDIAN	1
+
+#define SM3_DIGEST_SIZE		32
+#define SM3_BLOCK_SIZE		64
+#define SM3_STATE_WORDS		8
+#define SM3_HMAC_SIZE		(SM3_DIGEST_SIZE)
+
+
+typedef struct {
+	uint32_t digest[SM3_STATE_WORDS];
+	uint64_t nblocks;
+	uint8_t block[SM3_BLOCK_SIZE];
+	size_t num;
+} SM3_CTX;
+
+void sm3_init(SM3_CTX *ctx);
+void sm3_update(SM3_CTX *ctx, const uint8_t *data, size_t datalen);
+void sm3_finish(SM3_CTX *ctx, uint8_t dgst[SM3_DIGEST_SIZE]);
+void sm3_digest(const uint8_t *data, size_t datalen, uint8_t dgst[SM3_DIGEST_SIZE]);
+
+void sm3_compress_blocks(uint32_t digest[8], const uint8_t *data, size_t blocks);
+
+typedef struct {
+	SM3_CTX sm3_ctx;
+	uint8_t key[SM3_BLOCK_SIZE];
+} SM3_HMAC_CTX;
+
+void sm3_hmac_init(SM3_HMAC_CTX *ctx, const uint8_t *key, size_t keylen);
+void sm3_hmac_update(SM3_HMAC_CTX *ctx, const uint8_t *data, size_t datalen);
+void sm3_hmac_finish(SM3_HMAC_CTX *ctx, uint8_t mac[SM3_HMAC_SIZE]);
+void sm3_hmac(const uint8_t *key, size_t keylen,
+	const uint8_t *data, size_t datalen,
+	uint8_t mac[SM3_HMAC_SIZE]);
+
+
+typedef struct {
+	SM3_CTX sm3_ctx;
+	size_t outlen;
+} SM3_KDF_CTX;
+
+void sm3_kdf_init(SM3_KDF_CTX *ctx, size_t outlen);
+void sm3_kdf_update(SM3_KDF_CTX *ctx, const uint8_t *data, size_t datalen);
+void sm3_kdf_finish(SM3_KDF_CTX *ctx, uint8_t *out);
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif