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authorSeppia <nonso@insicuri.net>2016-12-07 15:46:14 +0100
committerSeppia <nonso@insicuri.net>2016-12-07 15:46:14 +0100
commita9de6782edc9f75f7f9995641b8f688a4cb25feb (patch)
tree1f284eec390ed597241a1da25cb73fca372cdcc1 /src
parentee958505b2d45fd2e558baa256a2de2d396296b4 (diff)
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added option for using custom values in bluh function and lenght fixes in bluh function
Diffstat (limited to 'src')
-rw-r--r--src/onetimebluh.c31
1 files changed, 21 insertions, 10 deletions
diff --git a/src/onetimebluh.c b/src/onetimebluh.c
index 3726489..905e8bb 100644
--- a/src/onetimebluh.c
+++ b/src/onetimebluh.c
@@ -9,7 +9,7 @@
void xor(int ed, char* mess, char* keyf, char* outp); /* operates the bitwise XOR between mess and keyf and puts the output to outp */
void keyrand(int nb, char* outp); /* generates random numbers using RAND_bytes from openssl and puts them into outp */
-void bluh(int c, char* mess, char* outp); /* performs the binary dump of the input file and prints that to outp */
+void bluh(int c, char* mess, char* outp, char* ch); /* performs the binary dump of the input file and prints that to outp */
void help(char* av[]); /* prints the help message */
int main(int argc, char* argv[]) {
@@ -18,6 +18,7 @@ int main(int argc, char* argv[]) {
int command = 0;
int comm = 0;
int tear = 0;
+ char* chars = "01";
char* message = NULL;
char* keyfile = NULL;
char* output = NULL;
@@ -30,6 +31,7 @@ int main(int argc, char* argv[]) {
int option_index = 0;
static struct option options[] = {
{"bluh", required_argument, 0, 'b'},
+ {"char", required_argument, 0, 'c'},
{"decrypt", required_argument, 0, 'd'},
{"encrypt", required_argument, 0, 'e'},
{"key-file", required_argument, 0, 'k'},
@@ -42,7 +44,7 @@ int main(int argc, char* argv[]) {
{0, 0, 0, 0},
};
- if ((opt = getopt_long(argc, argv, "b:d:e:ghk:n:o:tu:", options, &option_index)) == -1)
+ if ((opt = getopt_long(argc, argv, "b:c:d:e:ghk:n:o:tu:", options, &option_index)) == -1)
break;
switch (opt) {
@@ -54,6 +56,13 @@ int main(int argc, char* argv[]) {
command ++;
comm = 'b';
break;
+ case 'c':
+ if (strlen(argv[optind - 1]) != 2){
+ printf("Too much or too many characters inserted!");
+ exit(EXIT_FAILURE);
+ }
+ chars = argv[optind - 1];
+ break;
case 'd':
message = argv[optind-1];
command ++;
@@ -135,7 +144,7 @@ int main(int argc, char* argv[]) {
} else if (comm == 'g') {
keyrand(nbytes, output);
} else if (comm == 'b' || comm == 'u') {
- bluh(comm, message, output);
+ bluh(comm, message, output, chars);
}
exit(EXIT_SUCCESS);
@@ -250,10 +259,12 @@ void keyrand(int nb, char* outp) {
return;
}
-void bluh(int c, char* mess, char* outp) {
+void bluh(int c, char* mess, char* outp, char* ch) {
char* defbluh = "bluhed";
char* defunbluh = "unbluhed";
+ char a = ch[0];
+ char b = ch[1];
/* In absence of input by users next block sets the default values */
@@ -286,7 +297,7 @@ void bluh(int c, char* mess, char* outp) {
for (i = 0; i < len; i ++) {
for (j = 0; j < 8; j ++) {
- bits[8 * i + j] = (bytes[i] & (1 << (7 -j))) ? '1' : '0';
+ bits[8 * i + j] = (bytes[i] & (1 << (7 -j))) ? b : a;
printf("%c", bits[8 * i + j]);
}
@@ -303,17 +314,17 @@ void bluh(int c, char* mess, char* outp) {
printf("Message successfully bluhed!\n");
} else if (c == 'u') {
- char* comp = malloc(len + 1);
- char* bits = malloc(8 * len);
+ char* comp = malloc((len / 8) + 1);
+ char* bits = malloc(len);
- fread(bits, sizeof(char), 8 * len, mex);
- memset(comp, 0, (len + 1));
+ fread(bits, sizeof(char), len, mex);
+ memset(comp, 0, ((len / 8) + 1));
int i, j;
for (i = 0; i < len; i ++) {
for (j = 0; j < 8; j ++) {
- if (bits[8 * i + j] == '1') {
+ if (bits[8 * i + j] == b) {
comp[i] |= 1 << (7 - j);
}
}