clean up

[avr-crypto-lib.git] / dsa / bigint_io.c

diff --git a/dsa/bigint_io.c b/dsa/bigint_io.c
deleted file mode 100644 (file)
index 221c61c..0000000
--- a/dsa/bigint_io.c
+++ /dev/null
@@ -1,135 +0,0 @@
-/* bigint_io.c */
-/*
-    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/>.
-*/
-
-#include "cli.h"
-#include "hexdigit_tab.h"
-#include "bigint.h"
-#include <avr/pgmspace.h>
-#include <stdlib.h>
-#include <string.h>
-
-void bigint_print_hex(const bigint_t* a){
-       if(a->length_B==0){
-               cli_putc('0');
-               return;
-       }
-       if(a->info&BIGINT_NEG_MASK){
-               cli_putc('-');
-       }
-//     cli_putc((a->info&BIGINT_NEG_MASK)?'-':'+'); /* print sign */
-       if(a->wordv[a->length_B-1]<0x10){
-               cli_putc(pgm_read_byte(hexdigit_tab_uc_P+a->wordv[a->length_B-1]));
-               cli_hexdump_rev(a->wordv, a->length_B-1);
-       } else {
-               cli_hexdump_rev(a->wordv, a->length_B);
-       }
-}
-
-#define BLOCKSIZE 20
-
-static uint8_t char2nibble(char c){
-       if(c>='0' && c <='9'){
-               return c-'0';
-       }
-       c |= 'A'^'a'; /* to lower case */
-       if(c>='a' && c <='f'){
-               return c-'a'+10;
-       }
-       return 0xff;
-}
-
-static uint16_t read_byte(void){
-       uint8_t t1, t2;
-       char c;
-       c = cli_getc_cecho();
-       if(c=='-'){
-               return 0x0500;
-       }
-       t1 = char2nibble(c);
-       if(t1 == 0xff){
-               return 0x0100;
-       }
-       c = cli_getc_cecho();
-       t2 = char2nibble(c);
-       if(t2 == 0xff){
-               return 0x0200|t1;
-       }
-       return (t1<<4)|t2;
-}
-
-uint8_t bigint_read_hex_echo(bigint_t* a){
-       uint16_t allocated=0;
-       uint8_t  shift4=0;
-       uint16_t  t;
-       a->length_B = 0;
-       a->wordv = NULL;
-       a->info = 0;
-       for(;;){
-               if(allocated-a->length_B < 1){
-                       uint8_t *p;
-                       p = realloc(a->wordv, allocated+=BLOCKSIZE);
-                       if(p==NULL){
-                               cli_putstr_P(PSTR("\r\nERROR: Out of memory!"));
-                               free(a->wordv);
-                               return 0xff;
-                       }
-                       a->wordv=p;
-               }
-               t = read_byte();
-               if(a->length_B==0){
-                       if(t&0x0400){
-                               /* got minus */
-                               a->info |= BIGINT_NEG_MASK;
-                               continue;
-                       }else{
-                               if(t==0x0100){
-                                       free(a->wordv);
-                                       a->wordv=NULL;
-                                       return 1;
-                               }
-                       }
-               }
-               if(t<=0x00ff){
-                       a->wordv[a->length_B++] = (uint8_t)t;
-               }else{
-                       if(t&0x0200){
-                               shift4 = 1;
-                               a->wordv[a->length_B++] = (uint8_t)((t&0x0f)<<4);
-                       }
-                       break;
-               }
-       }
-       /* we have to reverse the byte array */
-       uint8_t tmp;
-       uint8_t *p, *q;
-       p = a->wordv;
-       q = a->wordv+a->length_B-1;
-       while(q>p){
-               tmp = *p;
-               *p = *q;
-               *q = tmp;
-               p++; q--;
-       }
-       if(shift4){
-               bigint_adjust(a);
-               bigint_shiftright(a, 4);
-       }
-       bigint_adjust(a);
-       return 0;
-}