Initial commit providing GOST 2012 algorithms.

[openssl-gost/engine.git] / gosthash2012.h

diff --git a/gosthash2012.h b/gosthash2012.h
new file mode 100644 (file)
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+++ b/gosthash2012.h
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+/*
+ * GOST R 34.11-2012 core functions definitions.
+ *
+ * Copyright (c) 2013 Cryptocom LTD.
+ * This file is distributed under the same license as OpenSSL.
+ *
+ * Author: Alexey Degtyarev <alexey@renatasystems.org>
+ *
+ */
+
+#include <string.h>
+
+#ifdef OPENSSL_IA32_SSE2
+# ifdef __MMX__
+#  ifdef __SSE2__
+#   define __GOST3411_HAS_SSE2__
+#  endif
+# endif
+#endif
+
+#ifdef __GOST3411_HAS_SSE2__
+# if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
+#  undef __GOST3411_HAS_SSE2__
+# endif
+#endif
+
+#ifndef L_ENDIAN
+# define __GOST3411_BIG_ENDIAN__
+#endif
+#if defined __GOST3411_HAS_SSE2__
+# include "gosthash2012_sse2.h"
+#else
+# include "gosthash2012_ref.h"
+#endif
+
+#ifdef _MSC_VER
+# define ALIGN(x) __declspec(align(x))
+#else
+# define ALIGN(x) __attribute__ ((__aligned__(x)))
+#endif
+
+ALIGN(16)
+typedef union uint512_u {
+    unsigned long long QWORD[8];
+} uint512_u;
+
+#include "gosthash2012_const.h"
+#include "gosthash2012_precalc.h"
+
+/* GOST R 34.11-2012 hash context */
+ALIGN(16)
+typedef struct gost2012_hash_ctx {
+    ALIGN(16) unsigned char buffer[64];
+    union uint512_u hash;
+    union uint512_u h;
+    union uint512_u N;
+    union uint512_u Sigma;
+    size_t bufsize;
+    unsigned int digest_size;
+} gost2012_hash_ctx;
+
+void init_gost2012_hash_ctx(gost2012_hash_ctx * CTX,
+                            const unsigned int digest_size);
+void gost2012_hash_block(gost2012_hash_ctx * CTX,
+                         const unsigned char *data, size_t len);
+void gost2012_finish_hash(gost2012_hash_ctx * CTX, unsigned char *digest);