Everchanging passphrase to avoid ECB attacksnonecb

1 files changed, 3 insertions, 1 deletions

diff --git a/encrypt.c b/encrypt.c
index 90ae0dc..6f2cca8 100644
--- a/encrypt.c
+++ b/encrypt.c
@@ -1,5 +1,6 @@
 /*
  * SimpleCrypt
+ * Non-ECB version
  * So simple it's all one function.
  *
  * Nathan Lasseter (User_4574)
@@ -45,7 +46,8 @@ int main(int argc, char** argv) {
 	int c, d, j = 0;
 
 	while ((c=fgetc(file)) != EOF) {
-		d = c ^ passphrase[j];
+		d = c + passphrase[j];
+		passphrase[j] = d;
 		fputc(d, temp);
 
 		if (j == passlen) j=0;