/*
   This file is part of The Labnix Cryptography Library.

   The Labnix Cryptography Library 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.

   The Labnix Cryptography Library 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 The Labnix Cryptography Library. If not, see
   <http://www.gnu.org/licenses/>.
 */
#ifndef CRYPTO_H
#define CRYPTO_H

#include <ctype.h>
#include <sys/types.h>
#include <inttypes.h>

typedef int BASE;

enum {
    BASE_16 = 16,
    BASE_64 = 64,
    BYTE = 8,
    MAXLINE = 4096,
    MAX_UNPRINTABLE = 0
};

struct ca { /* character analysis */
    float total, punct, alpha, digit, vowel, e ,t;
};
/* convert.c */
size_t blen(const char *s, BASE n);
size_t slen(int blen, BASE n);
uint8_t *decode(uint8_t *raw, const char *estr, BASE n);
char *encode(char *estr, const uint8_t *raw, size_t len, BASE n);
/* xor.c */
uint8_t *xor(uint8_t *buf, size_t blen, const uint8_t *key, size_t klen);
void xorb(uint8_t *raw, size_t n, int c);

void filter( uint8_t *raw, size_t n, struct ca *min, struct ca *max); /* filter.c */


#endif /* CRYPTO_H */