Reorganized camellia interface

Use distinct context structs and functions for camellia128 and
camellia256.

1 files changed, 45 insertions, 0 deletions

diff --git a/camellia128-set-decrypt-key.c b/camellia128-set-decrypt-key.c
new file mode 100644
index 00000000..afd93751
--- /dev/null
+++ b/camellia128-set-decrypt-key.c
@@ -0,0 +1,45 @@
+/* camellia128-set-decrypt-key.c
+ *
+ * Inverse key setup for the camellia block cipher.
+ */
+
+/* nettle, low-level cryptographics library
+ *
+ * Copyright (C) 2010, 2013 Niels Möller
+ *  
+ * The nettle library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at your
+ * option) any later version.
+ * 
+ * The nettle library 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 Lesser General Public
+ * License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with the nettle library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02111-1301, USA.
+ */
+
+#if HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "camellia-internal.h"
+
+void
+camellia128_invert_key(struct camellia128_ctx *dst,
+		       const struct camellia128_ctx *src)
+{
+  _camellia_invert_key (_CAMELLIA128_NKEYS, dst->keys, src->keys);
+}
+
+void
+camellia128_set_decrypt_key(struct camellia128_ctx *ctx,
+			    const uint8_t *key)
+{
+  camellia128_set_encrypt_key(ctx, key);
+  camellia128_invert_key(ctx, ctx);
+}