From 4a9770b8ba9d86db12779f5ae00366bce60a42ad Mon Sep 17 00:00:00 2001 From: Benedict Date: Sat, 19 Mar 2016 13:44:55 +0100 Subject: completed task6 nearly completly just a few characters are still wrong in the key. freqencies analysis has to be made more comprehensive --- task2.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) (limited to 'task2.c') diff --git a/task2.c b/task2.c index b675244..1847103 100644 --- a/task2.c +++ b/task2.c @@ -6,16 +6,17 @@ int main(int argc, char**argv) if (argc != 3) return 1; - - char *xor_string_tmp = malloc(strlen(argv[1])); - char *result = malloc(strlen(argv[1])); - char *str1 = malloc(strlen(argv[1])); - char *str2 = malloc(strlen(argv[2])); + int length_arg_1 = strlen(argv[1]); + int length_arg_2 = strlen(argv[2]); + char *xor_string_tmp = malloc(length_arg_1+1); + char *result = malloc(length_arg_1*2+1); + char *str1 = malloc(length_arg_1+1); + char *str2 = malloc(length_arg_2+1); decode_hex_string(argv[1], str1); decode_hex_string(argv[2], str2); - xor_string(str1, str2, xor_string_tmp, strlen(argv[2]), strlen(argv[1])); - hex_binary_to_string(xor_string_tmp, result, strlen(argv[1])); + xor_string(str1, str2, xor_string_tmp, length_arg_2, length_arg_1); + hex_binary_to_string(xor_string_tmp, result, (length_arg_1/2)); printf("%s\n", result); free(xor_string_tmp); -- cgit v1.2.3-70-g09d2