Move digests to providers

Move digest code into the relevant providers (fips, default, legacy).
The headers are temporarily moved to be internal, and will be moved
into providers after all external references are resolved. The deprecated
digest code can not be removed until EVP_PKEY (signing) is supported by
providers. EVP_MD data can also not yet be cleaned up for the same reasons.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8763)

1 files changed, 38 insertions, 0 deletions

diff --git a/include/internal/sm3.h b/include/internal/sm3.h
new file mode 100644
index 0000000000..2aef712e6a
--- /dev/null
+++ b/include/internal/sm3.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2017-2019 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2017 Ribose Inc. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+/* TODO(3.0) Move this header into provider when dependencies are removed */
+#ifndef HEADER_SM3_H
+# define HEADER_SM3_H
+
+# include <openssl/opensslconf.h>
+
+# ifdef OPENSSL_NO_SM3
+#  error SM3 is disabled.
+# endif
+
+# define SM3_DIGEST_LENGTH 32
+# define SM3_WORD unsigned int
+
+# define SM3_CBLOCK      64
+# define SM3_LBLOCK      (SM3_CBLOCK/4)
+
+typedef struct SM3state_st {
+   SM3_WORD A, B, C, D, E, F, G, H;
+   SM3_WORD Nl, Nh;
+   SM3_WORD data[SM3_LBLOCK];
+   unsigned int num;
+} SM3_CTX;
+
+int sm3_init(SM3_CTX *c);
+int sm3_update(SM3_CTX *c, const void *data, size_t len);
+int sm3_final(unsigned char *md, SM3_CTX *c);
+
+#endif /* HEADER_SM3_H */