clean up

[avr-crypto-lib.git] / hmac-md5 / base64_enc.c

diff --git a/hmac-md5/base64_enc.c b/hmac-md5/base64_enc.c
deleted file mode 100644 (file)
index 400f25c..0000000
--- a/hmac-md5/base64_enc.c
+++ /dev/null
@@ -1,117 +0,0 @@
-/* base64_enc.c */
-/*
- *   This file is part of the AVR-Crypto-Lib.
- *   Copyright (C) 2006, 2007, 2008  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/>.
- */
-
-
-/**
- * base64 encoder (RFC3548)
- * Author: Daniel Otte
- * License: GPLv3
- * 
- * 
- */
-
-#include <stdint.h>
-#include "base64_enc.h"
-
-#if 1
-#include <avr/pgmspace.h>
-
-char base64_alphabet[64] PROGMEM = {
-       'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 
-       'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 
-       'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 
-       'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 
-       'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 
-       'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 
-       'w', 'x', 'y', 'z', '0', '1', '2', '3', 
-       '4', '5', '6', '7', '8', '9', '+', '/' }; 
-
-static 
-char bit6toAscii(uint8_t a){
-       a &= (uint8_t)0x3F;
-       return pgm_read_byte(base64_alphabet+a);
-}
-
-#else
-
-static 
-char bit6toAscii(uint8_t a){
-       a &= (uint8_t)0x3F;
-       
-       if(a<=25){
-               return a+'A';
-       } else {
-               if(a<=51){
-                       return a-26+'a';
-               } else {
-                       if(a<=61){
-                               return a-52+'0';
-                       } else {
-                               if(a==62){
-                                       return '+';
-                               } else {
-                                       return '/'; /* a == 63 */
-                               }
-                       }
-               }
-       }
-}
-
-#endif
-
-void base64enc(char* dest, void* src, uint16_t length){
-       uint16_t i,j;
-       uint8_t a[4];
-       for(i=0; i<length/3; ++i){
-               a[0]= (((uint8_t*)src)[i*3+0])>>2;
-               a[1]= (((((uint8_t*)src)[i*3+0])<<4) | ((((uint8_t*)src)[i*3+1])>>4)) & 0x3F;
-               a[2]= (((((uint8_t*)src)[i*3+1])<<2) | ((((uint8_t*)src)[i*3+2])>>6)) & 0x3F;
-               a[3]= (((uint8_t*)src)[i*3+2]) & 0x3F;
-               for(j=0; j<4; ++j){
-                       *dest++=bit6toAscii(a[j]);
-               }
-       }
-       /* now we do the rest */
-       switch(length%3){
-               case 0: 
-                       break;
-               case 1:
-                       a[0]=(((uint8_t*)src)[i*3+0])>>2;
-                       a[1]=((((uint8_t*)src)[i*3+0])<<4)&0x3F;
-                       *dest++ = bit6toAscii(a[0]);
-                       *dest++ = bit6toAscii(a[1]);
-                       *dest++ = '=';
-                       *dest++ = '=';
-                       break;
-               case 2:         
-                       a[0]= (((uint8_t*)src)[i*3+0])>>2;
-                       a[1]= (((((uint8_t*)src)[i*3+0])<<4) | ((((uint8_t*)src)[i*3+1])>>4)) & 0x3F;
-                       a[2]= ((((uint8_t*)src)[i*3+1])<<2) & 0x3F;
-                       *dest++ = bit6toAscii(a[0]);
-                       *dest++ = bit6toAscii(a[1]);
-                       *dest++ = bit6toAscii(a[2]);
-                       *dest++ = '=';
-                       break;
-               default: /* this will not happen! */
-                       break;  
-       }
-/*  finalize: */
-       *dest='\0';
-}
-