add code

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

1 files changed, 61 insertions, 0 deletions

diff --git a/src/keccak.h b/src/keccak.h
new file mode 100644
index 0000000..c52cd10
--- /dev/null
+++ b/src/keccak.h
@@ -0,0 +1,61 @@
+/**
+ * file2key – A simple command that generates a key from a file and a passphrase
+ * 
+ * Copyright © 2014  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 Affero 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 Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <stdlib.h>
+#include <inttypes.h>
+
+
+
+/**
+ * Initialise Keccak sponge
+ */
+void initialise(void);
+
+
+/**
+ * Dispose of the Keccak sponge
+ */
+void dispose(void);
+
+
+/**
+ * Absorb the more of the message message to the Keccak sponge
+ * 
+ * @param  msg     The partial message
+ * @param  msglen  The length of the partial message
+ */
+void update(const int8_t* restrict 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
+ * @return          The hash sum
+ */
+int8_t* digest(const int8_t* restrict msg, long msglen);
+
+
+/**
+ * Squeeze out another digest
+ * 
+ * @return  The hash sum
+ */
+int8_t* squeeze(void);
+