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read and encode data with hardcoded key

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This commit is contained in:
Gregory 2019-03-15 23:20:40 +02:00
parent f600a2d0c6
commit 9e9e697cdc
6 changed files with 41 additions and 10 deletions
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3
Makefile
View file

@ -130,7 +130,8 @@ DES_SRC = ft_des_initial_permutation.c \
ft_des_init_ctx.c \
ft_des_print_error.c \
ft_des_arg_parsers.c \
ft_des_ecb_process.c
ft_des_ecb_process.c \
ft_des_ecb_process_chunk.c
SRC = main.c \
ft_ssl_usage.c

19
src/des/ft_des_arg_parsers.c
View file

@ -8,9 +8,26 @@ int ft_des_key_arg_parser
t_des_ctx *ctx
)
{
(void)ctx;
t_byte1 key[FT_DES_INITIAL_KEY_SIZE] = {
0, 1, 1, 0, 0, 0, 0, 1,
0, 1, 1, 0, 0, 0, 1, 0,
0, 1, 1, 0, 0, 0, 1, 1,
0, 1, 1, 0, 0, 1, 0, 0,
0, 1, 1, 0, 0, 0, 0, 1,
0, 1, 1, 0, 0, 0, 1, 0,
0, 1, 1, 0, 0, 0, 1, 1,
0, 1, 1, 0, 0, 1, 0, 0,
};
int i;
(void)argv;
if (position + 1 >= argc)
ft_des_print_error("there is no key after -k flag. type -h for help.");
i = 0;
while (i < FT_DES_INITIAL_KEY_SIZE)
{
ctx->key[i] = key[i];
i++;
}
return (position + 2);
}

2
src/des/ft_des_ecb.c
View file

@ -49,6 +49,6 @@ void ft_des_ecb
ft_des_init_ctx(&ctx);
parse_args(argc, argv, &ctx);
// ft_des_ecb_process(&ctx);
ft_des_ecb_process(&ctx);
exit(0);
}

8
src/des/ft_des_ecb_process.c
View file

@ -6,11 +6,11 @@ void ft_des_ecb_process
t_des_ctx *ctx
)
{
// t_byte1 buffer[FT_DES_READ_SIZE];
// t_byte8 readed;
t_byte1 buffer[FT_DES_READ_SIZE];
t_byte8 readed;
ft_des_generate_encryption_round_keys(ctx->key, ctx->round_keys);
// while((readed = read(ctx->input_fd, buffer, FT_DES_READ_SIZE)) > 0)
// ft_des_ecb_process_chunk(ctx, readed, buffer);
while((readed = read(ctx->input_fd, buffer, FT_DES_READ_SIZE)) > 0)
ft_des_ecb_process_chunk(ctx, readed, buffer);
// ft_des_ecb_finish_process(ctx);
}

18
src/des/ft_des_ecb_process_chunk.c
View file

@ -1,10 +1,22 @@
#include <unistd.h>
#include "ft_des.h"
#include "libft.h"
static void ft_des_ecb_write
(
t_des_ctx *ctx
)
{
t_byte1 cyphertext[FT_DES_BYTE_BLOCK_SIZE];
ft_des_process_block(ctx->buffer, ctx->round_keys, cyphertext);
write(ctx->output_fd, cyphertext, FT_DES_BYTE_BLOCK_SIZE);
}
void ft_des_ecb_process_chunk
(
t_des_ctx *ctx,
t_byte8 readed,
t_byte8 buffer[FT_DES_READ_SIZE]
t_byte1 buffer[FT_DES_READ_SIZE]
)
{
t_byte8 free_space_in_buffer;
@ -17,11 +29,11 @@ void ft_des_ecb_process_chunk
if (readed >= free_space_in_buffer)
{
ft_memcpy(&ctx->buffer[buffer_index], buffer, free_space_in_buffer);
ft_base64_encode_write(ctx, ctx->buffer);
ft_des_ecb_write(ctx);
idx = free_space_in_buffer;
while(idx + FT_DES_BYTE_BLOCK_SIZE <= readed)
{
ft_base64_encode_write(ctx, &buffer[idx]);
ft_des_ecb_write(ctx);
idx += FT_DES_BYTE_BLOCK_SIZE;
}
buffer_index = 0;

1
t/cases/des_ecb_8_byte_text.txt Normal file
View file

@ -0,0 +1 @@
foo bar