--- /dev/null
+/* ubi.h */
+/*
+ This file is part of the AVR-Crypto-Lib.
+ Copyright (C) 2009 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/>.
+*/
+/*
+ * \author Daniel Otte
+ * \email daniel.otte@rub.de
+ * \date 2009-03-12
+ * \license GPLv3 or later
+ *
+ */
+
+#ifndef UBI_H_
+#define UBI_H_
+
+#include <stdint.h>
+
+#define UBI_TYPE_KEY 0
+#define UBI_TYPE_CFG 4
+#define UBI_TYPE_PRS 8
+#define UBI_TYPE_PK 12
+#define UBI_TYPE_KDF 16
+#define UBI_TYPE_NON 20
+#define UBI_TYPE_MSG 48
+#define UBI_TYPE_OUT 63
+
+#define UBI256_BLOCKSIZE 256
+#define UBI256_BLOCKSIZE_B ((UBI256_BLOCKSIZE+7)/8)
+
+#define UBI512_BLOCKSIZE 512
+#define UBI512_BLOCKSIZE_B ((UBI512_BLOCKSIZE+7)/8)
+
+#define UBI1024_BLOCKSIZE 1024
+#define UBI1024_BLOCKSIZE_B ((UBI1024_BLOCKSIZE+7)/8)
+
+
+typedef struct{
+ uint8_t tweak[16];
+ uint8_t g[32];
+}ubi256_ctx_t;
+
+typedef struct{
+ uint8_t tweak[16];
+ uint8_t g[64];
+}ubi512_ctx_t;
+
+typedef struct{
+ uint8_t tweak[16];
+ uint8_t g[128];
+}ubi1024_ctx_t;
+
+void ubi256_init(ubi256_ctx_t* ctx, const void* g, uint8_t type);
+void ubi256_nextBlock(ubi256_ctx_t* ctx, const void* block);
+void ubi256_lastBlock(ubi256_ctx_t* ctx, const void* block, uint16_t length_b);
+void ubi256_ctx2hash(void* dest, const ubi256_ctx_t* ctx);
+
+void ubi512_init(ubi512_ctx_t* ctx, const void* g, uint8_t type);
+void ubi512_nextBlock(ubi512_ctx_t* ctx, const void* block);
+void ubi512_lastBlock(ubi512_ctx_t* ctx, const void* block, uint16_t length_b);
+void ubi512_ctx2hash(void* dest, const ubi512_ctx_t* ctx);
+
+void ubi1024_init(ubi1024_ctx_t* ctx, const void* g, uint8_t type);
+void ubi1024_nextBlock(ubi1024_ctx_t* ctx, const void* block);
+void ubi1024_lastBlock(ubi1024_ctx_t* ctx, const void* block, uint16_t length_b);
+void ubi1024_ctx2hash(void* dest, const ubi1024_ctx_t* ctx);
+
+typedef struct{
+ char schema[4];
+ uint16_t version;
+ uint16_t reserved1;
+ uint64_t out_length;
+ uint8_t tree_leaf_size;
+ uint8_t tree_fan_out;
+ uint8_t tree_max_height;
+ uint8_t reserved2[13];
+}skein_config_t;
+
+
+#endif /* UBI_H_ */