beginning of porting the command to c

Signed-off-by: Mattias Andrée <maandree@operamail.com>

1 files changed, 49 insertions, 0 deletions

diff --git a/c/sha3.h b/c/sha3.h
new file mode 100644
index 0000000..8516690
--- /dev/null
+++ b/c/sha3.h
@@ -0,0 +1,49 @@
+/**
+ * sha3sum – SHA-3 (Keccak) checksum calculator
+ * 
+ * Copyright © 2013  Mattias Andrée (maandree@member.fsf.org)
+ * 
+ * This program 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 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program 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, see <http://www.gnu.org/licenses/>.
+ */
+#include <stdlib.h>
+
+
+
+/**
+ * Initialise Keccak sponge
+ * 
+ * @param  bitrate   The bitrate
+ * @param  capacity  The capacity
+ * @param  output    The output size
+ */
+extern void initialise(long bitrate, long capacity, long output);
+
+
+/**
+ * Absorb the more of the message message to the Keccak sponge
+ * 
+ * @param  msg     The partial message
+ * @param  msglen  The length of the partial message
+ */
+extern void update(char* msg, long msglen);
+
+
+/**
+ * Absorb the last part of the message and squeeze the Keccak sponge
+ * 
+ * @param  msg     The rest of the message, may be {@code null}
+ * @param  msglen  The length of the partial message
+ */
+extern char* digest(char* msg, long msglen);
+