/* nanoka-core.h - Don Yang (uguu.org)

   01/06/05
                                                                           */

#ifndef NANOKA_CORE_H__
#define NANOKA_CORE_H__


#define MAX_ROUNDS      128
#define MIN_BLK_SIZE    2     /* Block size is measured in WORDs */
#define MAX_BLK_SIZE    32
#define MIN_FUNC_SIZE   3
#define MAX_FUNC_SIZE   32
#define MIN_COVERAGE    8
#define S_TABLE         "P"
#define K_TABLE         "K"

typedef struct
{
   int in, out, xor;
} Round;

typedef enum
{
   OP_XOR = 0,
   OP_MUL,
   OP_ADD,
   OP_SUB,
   OP_TABLE,
   OP_ROR,
   OPCOUNT
} OpType;
typedef struct
{
   OpType op;
   int term;
} Func;

typedef struct
{
   int rounds, iter, blocksize, funcsize;
   unsigned int s_table[32];
   /*@only@*/unsigned int *k_table;
   /*@only@*/Round *r;
   /*@only@*/Func *f;
} Cipher;

void FreeCipher(/*@only@*/Cipher *c) /*@releases c@*/;
/*@null@*/Cipher *GenerateCipher(FILE *keyfile);


#endif