fxied api change in other tasks

1 files changed, 38 insertions, 8 deletions

diff --git a/task6.c b/task6.c
index d807b69..aff1d39 100644
--- a/task6.c
+++ b/task6.c
@@ -2,20 +2,50 @@
 
 void main()
 {
-	FILE *fp;
+	/*FILE *fp;
 	int keysize;
+	char *file_content, *chipertext, *block1, *block2;
+	int file_size = 61;
+	int min_hamming_distance;
 
+	fp = fopen("6.txt", "r");
 
-	// data come on stdin (base64 decoded already)
+	if (fp == NULL) {
+		printf("Error open file\n");
+		exit(1);
+	}
+	
+	file_content = malloc(file_size);
+
+	// read data and decode it from base64
+	// result is not a hex strin or?
+
+	while (fscanf(fp, "%60c", file_content) != EOF) {
+		file_size += 61;
+		file_content = realloc(file_content, file_size);
+	}
+
+	ciphertext = malloc(file_size);
+	decode_base64(file_content, ciphertext);
 
+	block1 = malloc(41);
+	block2 = malloc(41);
+
+	// split ciphertext in blocks of size 2 to 40
 	for(keysize=2; keysize < 40; keysize++) {
-		char *string1 = malloc(keysize+1);
-		char *string2 = malloc(keysize+1);
-		
-		//while(fscanf(fp, "%n"
+		strncpy(block1, ciphertext, keysize);
+		strncpy(block2, &ciphertext[keysize+1], keysize);
 
-		free(string1);
-		free(string2);
+		tmp = hamming_distance(block1, block2);
+		tmp = tmp / keysize;
 
+		if (tmp < min_hamming_distance)
+			min_hamming_distance = tmp;
 	}
+
+	printf("keysize: %i\n", min_hamming_distance);
+
+
+	// transpose the blocks
+*/	
 }