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-rw-r--r--c/sha3.h49
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+/**
+ * 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);
+