now with Echo (hashfunction), tests are running ...

[avr-crypto-lib.git] / echo / echo.h

diff --git a/echo/echo.h b/echo/echo.h
new file mode 100644 (file)
index 0000000..fcb02f2
--- /dev/null
+++ b/echo/echo.h
@@ -0,0 +1,55 @@
+/* echo.h */
+/*
+    This file is part of the AVR-Crypto-Lib.
+    Copyright (C) 2010 Daniel Otte (daniel.otte@rub.de)
+
+    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/>.
+*/
+
+#ifndef ECHO_H_
+#define ECHO_H_
+
+#include <stdint.h>
+
+#define ECHO_SMALL_BLOCKSIZE 1536
+#define ECHO_SMALL_BLOCKSIZE_B ((ECHO_SMALL_BLOCKSIZE+7)/8)
+#define ECHO_LARGE_BLOCKSIZE 1024
+#define ECHO_LARGE_BLOCKSIZE_B ((ECHO_LARGE_BLOCKSIZE+7)/8)
+
+#define ECHO224_BLOCKSIZE ECHO_SMALL_BLOCKSIZE
+#define ECHO224_BLOCKSIZE_B ((ECHO224_BLOCKSIZE+7)/8)
+#define ECHO256_BLOCKSIZE ECHO_SMALL_BLOCKSIZE
+#define ECHO256_BLOCKSIZE_B ((ECHO256_BLOCKSIZE+7)/8)
+#define ECHO384_BLOCKSIZE ECHO_LARGE_BLOCKSIZE
+#define ECHO384_BLOCKSIZE_B ((ECHO384_BLOCKSIZE+7)/8)
+#define ECHO512_BLOCKSIZE ECHO_LARGE_BLOCKSIZE
+#define ECHO512_BLOCKSIZE_B ((ECHO512_BLOCKSIZE+7)/8)
+
+typedef struct{
+       uint8_t v[4*16];
+       uint8_t salt[16];
+       uint64_t counter;
+       uint16_t id;
+}echo_small_ctx_t;
+
+
+void echo_small_nextBlock(echo_small_ctx_t* ctx, void* block);
+void echo_small_lastBlock(echo_small_ctx_t* ctx, void* block, uint16_t length_b);
+void echo_small_ctx2hash(void* dest, uint16_t length_b, echo_small_ctx_t* ctx);
+void echo224_ctx2hash(void* dest, echo_small_ctx_t* ctx);
+void echo256_ctx2hash(void* dest, echo_small_ctx_t* ctx);
+void echo224_init(echo_small_ctx_t* ctx);
+void echo256_init(echo_small_ctx_t* ctx);
+
+#endif /* ECHO_H_ */