First commit, Vystem v0.1

Blastproof/initfsgen/utilsx1.h

@@ -0,0 +1,26 @@
+#ifndef SPX_UTILSX4_H
+#define SPX_UTILSX4_H
+
+#include <stdint.h>
+#include "params.h"
+#include "context.h"
+
+/**
+ * For a given leaf index, computes the authentication path and the resulting
+ * root node using Merkle's TreeHash algorithm.
+ * Expects the layer and tree parts of the tree_addr to be set, as well as the
+ * tree type (i.e. SPX_ADDR_TYPE_HASHTREE or SPX_ADDR_TYPE_FORSTREE).
+ * Applies the offset idx_offset to indices before building addresses, so that
+ * it is possible to continue counting indices across trees.
+ */
+#define treehashx1 SPX_NAMESPACE(treehashx1)
+void treehashx1(unsigned char *root, unsigned char *auth_path,
+                const spx_ctx* ctx,
+                uint32_t leaf_idx, uint32_t idx_offset, uint32_t tree_height,
+                void (*gen_leaf)(
+                   unsigned char* /* Where to write the leaf */,
+                   const spx_ctx* /* ctx */,
+                   uint32_t addr_idx, void *info),
+                uint32_t tree_addrx4[8], void *info);
+
+#endif