Init commit of gmssl-v3

include/gmssl/digest.h

@@ -0,0 +1,138 @@
+/*
+ * Copyright (c) 2021 - 2021 The GmSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the GmSSL Project.
+ *    (http://gmssl.org/)"
+ *
+ * 4. The name "GmSSL Project" must not be used to endorse or promote
+ *    products derived from this software without prior written
+ *    permission. For written permission, please contact
+ *    guanzhi1980@gmail.com.
+ *
+ * 5. Products derived from this software may not be called "GmSSL"
+ *    nor may "GmSSL" appear in their names without prior written
+ *    permission of the GmSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the GmSSL Project
+ *    (http://gmssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE GmSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE GmSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+
+#ifndef GMSSL_DIGEST_H
+#define GMSSL_DIGEST_H
+
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <gmssl/sm3.h>
+#include <gmssl/md5.h>
+#include <gmssl/sha1.h>
+#include <gmssl/sha2.h>
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+typedef struct digest_st DIGEST;
+typedef struct digest_ctx_st DIGEST_CTX;
+
+
+#define DIGEST_MAX_SIZE		64
+#define DIGEST_MAX_BLOCK_SIZE (1024/8)
+
+
+struct digest_ctx_st {
+	const DIGEST *digest;
+	union {
+		SM3_CTX sm3_ctx;
+		MD5_CTX md5_ctx;
+		SHA1_CTX sha1_ctx;
+		SHA224_CTX sha224_ctx;
+		SHA256_CTX sha256_ctx;
+		SHA384_CTX sha384_ctx;
+		SHA512_CTX sha512_ctx;
+	} u;
+};
+
+struct digest_st {
+	int nid;
+	size_t digest_size;
+	size_t block_size;
+	size_t ctx_size;
+	int (*init)(DIGEST_CTX *ctx);
+	int (*update)(DIGEST_CTX *ctx, const unsigned char *data, size_t datalen);
+	int (*finish)(DIGEST_CTX *ctx, unsigned char *dgst);
+};
+
+int digest_nid(const DIGEST *digest);
+const char *digest_name(const DIGEST *digest);
+size_t digest_size(const DIGEST *digest);
+size_t digest_block_size(const DIGEST *digest);
+
+const DIGEST *DIGEST_sm3(void);
+const DIGEST *DIGEST_md5(void);
+const DIGEST *DIGEST_sha1(void);
+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);
+
+int digest_ctx_nid(const DIGEST_CTX *ctx);
+const char *digest_ctx_name(const DIGEST_CTX *ctx);
+size_t digest_ctx_size(const DIGEST_CTX *ctx);
+size_t digest_ctx_block_size(const DIGEST_CTX *ctx);
+const DIGEST *digest_ctx_digest(const DIGEST_CTX *ctx);
+
+int digest_ctx_init(DIGEST_CTX *ctx);
+int digest_init(DIGEST_CTX *ctx, const DIGEST *algor);
+int digest_update(DIGEST_CTX *ctx, const unsigned char *data, size_t datalen);
+int digest_finish(DIGEST_CTX *ctx, unsigned char *dgst, size_t *dgstlen);
+void digest_ctx_cleanup(DIGEST_CTX *ctx);
+
+int digest(const DIGEST *digest, const unsigned char *data, size_t datalen,
+	unsigned char *dgst, size_t *dgstlen);
+
+const char *digest_algor_name(int oid);
+int digest_algor_to_der(int oid, uint8_t **out, size_t *outlen);
+int digest_algor_from_der(int *oid, uint32_t *nodes, size_t *nodes_count,
+	const uint8_t **in, size_t *inlen);
+
+#ifdef __cplusplus
+}
+#endif
+#endif