feat: add gmssl headers

include/gmssl/digest.h

@@ -0,0 +1,87 @@
+/*
+ *  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_DIGEST_H
+#define GMSSL_DIGEST_H
+
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <gmssl/sm3.h>
+#ifdef ENABLE_BROKEN_CRYPTO
+#include <gmssl/md5.h>
+#include <gmssl/sha1.h>
+#endif
+#include <gmssl/sha2.h>
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+typedef struct DIGEST DIGEST;
+typedef struct DIGEST_CTX DIGEST_CTX;
+
+
+#define DIGEST_MAX_SIZE		64
+#define DIGEST_MAX_BLOCK_SIZE (1024/8)
+
+
+struct DIGEST_CTX {
+	union {
+		SM3_CTX sm3_ctx;
+#ifdef ENABLE_BROKEN_CRYPTO
+		MD5_CTX md5_ctx;
+		SHA1_CTX sha1_ctx;
+#endif
+		SHA224_CTX sha224_ctx;
+		SHA256_CTX sha256_ctx;
+		SHA384_CTX sha384_ctx;
+		SHA512_CTX sha512_ctx;
+	} u;
+	const DIGEST *digest;
+};
+
+struct DIGEST {
+	int oid;
+	size_t digest_size;
+	size_t block_size;
+	size_t ctx_size;
+	int (*init)(DIGEST_CTX *ctx);
+	int (*update)(DIGEST_CTX *ctx, const uint8_t *data, size_t datalen);
+	int (*finish)(DIGEST_CTX *ctx, uint8_t *dgst);
+};
+
+const DIGEST *DIGEST_sm3(void);
+#ifdef ENABLE_BROKEN_CRYPTO
+const DIGEST *DIGEST_md5(void);
+const DIGEST *DIGEST_sha1(void);
+#endif
+const DIGEST *DIGEST_sha224(void);
+const DIGEST *DIGEST_sha256(void);
+const DIGEST *DIGEST_sha384(void);
+const DIGEST *DIGEST_sha512(void);
+const DIGEST *DIGEST_sha512_224(void);
+const DIGEST *DIGEST_sha512_256(void);
+
+const DIGEST *digest_from_name(const char *name);
+const char *digest_name(const DIGEST *digest);
+int digest_init(DIGEST_CTX *ctx, const DIGEST *algor);
+int digest_update(DIGEST_CTX *ctx, const uint8_t *data, size_t datalen);
+int digest_finish(DIGEST_CTX *ctx, uint8_t *dgst, size_t *dgstlen);
+int digest(const DIGEST *digest, const uint8_t *data, size_t datalen, uint8_t *dgst, size_t *dgstlen);
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif