initially checkin

1 files changed, 46 insertions, 0 deletions

diff --git a/cipher/gost.h b/cipher/gost.h
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--- /dev/null
+++ b/cipher/gost.h
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+/* gost.h
+ *	Copyright (c) 1997 by Werner Koch (dd9jn)
+ *
+ * This file is part of G10.
+ *
+ * G10 is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * G10 is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+#ifndef G10_GOST_H
+#define G10_GOST_H
+
+#include "types.h"
+
+#define GOST_KEYSIZE 16
+#define GOST_BLOCKSIZE 8
+#define GOST_ROUNDS 8
+#define GOST_KEYLEN (6*GOST_ROUNDS+4)
+
+typedef struct {
+    u16 ek[GOST_KEYLEN];
+    u16 dk[GOST_KEYLEN];
+    byte iv[GOST_BLOCKSIZE];
+} GOST_context;
+
+void gost_setkey( GOST_context *c, byte *key );
+void gost_setiv( GOST_context *c, byte *iv );
+void gost_encode( GOST_context *c, byte *out, byte *in, unsigned nblocks );
+void gost_decode( GOST_context *c, byte *out, byte *in, unsigned nblocks );
+void gost_encode_cfb( GOST_context *c, byte *outbuf,
+				       byte *inbuf, unsigned nbytes);
+void gost_decode_cfb( GOST_context *c, byte *outbuf,
+				       byte *inbuf, unsigned nbytes);
+
+
+#endif /*G10_GOST_H*/