diff --git a/keygen/keygen.c b/keygen/keygen.c
index a14115a..d1f6646 100644
--- a/keygen/keygen.c
+++ b/keygen/keygen.c
@@ -1,279 +1,279 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <math.h>
-#include <stdint.h>
-
-
-typedef union uwb
-{
-	unsigned w;
-	unsigned char b[4];
-}
-WBunion;
-
-typedef unsigned Digest[4];
-
-unsigned f0(unsigned abcd[])
-{
-	return (abcd[1] &abcd[2]) | (~abcd[1] &abcd[3]);
-}
-
-unsigned f1(unsigned abcd[])
-{
-	return (abcd[3] &abcd[1]) | (~abcd[3] &abcd[2]);
-}
-
-unsigned f2(unsigned abcd[])
-{
-	return abcd[1] ^ abcd[2] ^ abcd[3];
-}
-
-unsigned f3(unsigned abcd[])
-{
-	return abcd[2] ^ (abcd[1] | ~abcd[3]);
-}
-
-typedef unsigned(*DgstFctn)(unsigned a[]);
-
-unsigned* calcKs(unsigned *k)
-{
-	double s, pwr;
-	int i;
-
-	pwr = pow(2, 32);
-	for (i = 0; i < 64; i++)
-	{
-		s = fabs(sin(1 + i));
-		k[i] = (unsigned)(s *pwr);
-	}
-	return k;
-}
-
-// ROtate v Left by amt bits
-unsigned rol(unsigned v, short amt)
-{
-	unsigned msk1 = (1 << amt) - 1;
-	return ((v >> (32 - amt)) &msk1) | ((v << amt) &~msk1);
-}
-
-unsigned* md5(const char *msg, int mlen)
-{
-	static Digest h0 = { 0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476
-	};
-	//static Digest h0 = { 0x01234567, 0x89ABCDEF, 0xFEDCBA98, 0x76543210 };
-	static DgstFctn ff[] = { &f0, &f1, &f2, &f3
-	};
-	static short M[] = { 1, 5, 3, 7 };
-	static short O[] = { 0, 1, 5, 0 };
-	static short rot0[] = { 7, 12, 17, 22 };
-	static short rot1[] = { 5, 9, 14, 20 };
-	static short rot2[] = { 4, 11, 16, 23 };
-	static short rot3[] = { 6, 10, 15, 21 };
-	static short *rots[] = { rot0, rot1, rot2, rot3
-	};
-	static unsigned kspace[64];
-	static unsigned * k;
-
-	static Digest h;
-	Digest abcd;
-	DgstFctn fctn;
-	short m, o, g;
-	unsigned f;
-	short * rotn;
-	union
-	{
-		unsigned w[16];
-		char b[64];
-	}
-	mm;
-	int os = 0;
-	int grp, grps, q, p;
-	unsigned char *msg2;
-
-	if (k == NULL) k = calcKs(kspace);
-
-	for (q = 0; q < 4; q++) h[q] = h0[q];
-
-	{
-		grps = 1 + (mlen + 8) / 64;
-		msg2 = malloc(64 *grps);
-		memcpy(msg2, msg, mlen);
-		msg2[mlen] = (unsigned char) 0x80;
-		q = mlen + 1;
-		while (q < 64 *grps)
-		{
-			msg2[q] = 0;
-			q++;
-		}
-		{
-			WBunion u;
-			u.w = 8 * mlen;
-			q -= 8;
-			memcpy(msg2 + q, &u.w, 4);
-		}
-	}
-
-	for (grp = 0; grp < grps; grp++)
-	{
-		memcpy(mm.b, msg2 + os, 64);
-		for (q = 0; q < 4; q++) abcd[q] = h[q];
-		for (p = 0; p < 4; p++)
-		{
-			fctn = ff[p];
-			rotn = rots[p];
-			m = M[p];
-			o = O[p];
-			for (q = 0; q < 16; q++)
-			{
-				g = (m *q + o) % 16;
-				f = abcd[1] + rol(abcd[0] + fctn(abcd) + k[q + 16 *p] + mm.w[g], rotn[q % 4]);
-
-				abcd[0] = abcd[3];
-				abcd[3] = abcd[2];
-				abcd[2] = abcd[1];
-				abcd[1] = f;
-			}
-		}
-		for (p = 0; p < 4; p++)
-			h[p] += abcd[p];
-		os += 64;
-	}
-
-	if (msg2)
-		free(msg2);
-
-	return h;
-}
-
-char *get_mac()
-{
-	FILE * fp;
-	char *mac = malloc(18* sizeof(char));
-	fp = fopen("/sys/class/net/ap0/address", "r");
-	fgets(mac, 17, fp);
-	fclose(fp);
-	return mac;
-}
-
-char *get_serial()
-{
-	FILE * fp;
-	char *serial = malloc(21* sizeof(char));
-	fp = fopen("/etc/serial", "r");
-	fgets(serial, 20, fp);
-	return serial;
-}
-
-int gen_serial()
-{
-	// hexdump -n 16 -e '4/4 "%08X" 1 "\n"' /dev/random
-	if (fopen("/etc/serial", "r") == NULL)
-	{
-		system("/usr/bin/hexdump -n 16 -e '4/4 \"%08X\"' /dev/urandom > /etc/serial");
-	}
-}
-
-int gen_ssid()
-{
-	char *serial;
-	FILE * fp;
-	char ssid[20] = "CyberChallenge-";
-	serial = get_serial();
-	strncat(ssid, serial, 4);
-	fp = fopen("/etc/ssid", "w");
-	fprintf(fp, "%s", ssid);
-	fclose(fp);
-
-}
-
-int gen_key(char *serial, char *mac)
-{
-	FILE * fp;
-	char md5a[33];
-	char md5b[33];
-	char tmp[3];
-	char key[21];
-	char wstr[9];
-	char xstr[9];
-	char ystr[9];
-	char zstr[9];
-	uint32_t w, x, y, z;
-	long long int seed;
-	int j, k;
-	unsigned long int h;
-	WBunion u;
-
-	md5a[0] = '\0';
-	md5b[0] = '\0';
-
-	wstr[8] = '\0';
-	xstr[8] = '\0';
-	ystr[8] = '\0';
-	zstr[8] = '\0';
-
-	unsigned *d = md5(mac, strlen(mac));
-	for (j = 0; j < 4; j++)
-	{
-		u.w = d[j];
-		for (k = 0; k < 4; k++)
-		{
-			snprintf(tmp, 3, "%02x", u.b[k]);
-			strncat(md5a, tmp, 2);
-		}
-	}
-
-	unsigned *f = md5(serial, strlen(serial));
-	for (j = 0; j < 4; j++)
-	{
-		u.w = f[j];
-		for (k = 0; k < 4; k++)
-		{
-			snprintf(tmp, 3, "%02x", u.b[k]);
-			strncat(md5b, tmp, 2);
-		}
-	}
-
-	strncpy(wstr, md5a, 8);
-	strncpy(xstr, md5a + 8, 8);
-	strncpy(ystr, md5a + 16, 8);
-	strncpy(zstr, md5a + 24, 8);
-
-	w = strtoul(wstr, NULL, 16);
-	x = strtoul(xstr, NULL, 16);
-	y = strtoul(ystr, NULL, 16);
-	z = strtoul(zstr, NULL, 16);
-
-	for (int i = 0; i < 20; ++i)
-	{
-		uint32_t t = x;
-		t ^= t << 11U;
-		t ^= t >> 8U;
-		x = y;
-		y = z;
-		z = w;
-		w ^= w >> 19U;
-		w ^= t;
-		key[i] = md5b[t % 20];
-	}
-	key[20] = '\0';
-
-	fp = fopen("/etc/wpa", "w");
-	fprintf(fp, "%s", key);
-	fclose(fp);
-}
-
-int main()
-{
-	char *mac;
-	char *serial;
-
-	gen_serial();
-	gen_ssid();
-	mac = get_mac();
-	serial = get_serial();
-	gen_key(mac, serial);
-
-	return 0;
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <math.h>
+#include <stdint.h>
+
+
+typedef union uwb
+{
+	unsigned w;
+	unsigned char b[4];
+}
+WBunion;
+
+typedef unsigned Digest[4];
+
+unsigned f0(unsigned abcd[])
+{
+	return (abcd[1] &abcd[2]) | (~abcd[1] &abcd[3]);
+}
+
+unsigned f1(unsigned abcd[])
+{
+	return (abcd[3] &abcd[1]) | (~abcd[3] &abcd[2]);
+}
+
+unsigned f2(unsigned abcd[])
+{
+	return abcd[1] ^ abcd[2] ^ abcd[3];
+}
+
+unsigned f3(unsigned abcd[])
+{
+	return abcd[2] ^ (abcd[1] | ~abcd[3]);
+}
+
+typedef unsigned(*DgstFctn)(unsigned a[]);
+
+unsigned* calcKs(unsigned *k)
+{
+	double s, pwr;
+	int i;
+
+	pwr = pow(2, 32);
+	for (i = 0; i < 64; i++)
+	{
+		s = fabs(sin(1 + i));
+		k[i] = (unsigned)(s *pwr);
+	}
+	return k;
+}
+
+// ROtate v Left by amt bits
+unsigned rol(unsigned v, short amt)
+{
+	unsigned msk1 = (1 << amt) - 1;
+	return ((v >> (32 - amt)) &msk1) | ((v << amt) &~msk1);
+}
+
+unsigned* md5(const char *msg, int mlen)
+{
+	static Digest h0 = { 0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476
+	};
+	//static Digest h0 = { 0x01234567, 0x89ABCDEF, 0xFEDCBA98, 0x76543210 };
+	static DgstFctn ff[] = { &f0, &f1, &f2, &f3
+	};
+	static short M[] = { 1, 5, 3, 7 };
+	static short O[] = { 0, 1, 5, 0 };
+	static short rot0[] = { 7, 12, 17, 22 };
+	static short rot1[] = { 5, 9, 14, 20 };
+	static short rot2[] = { 4, 11, 16, 23 };
+	static short rot3[] = { 6, 10, 15, 21 };
+	static short *rots[] = { rot0, rot1, rot2, rot3
+	};
+	static unsigned kspace[64];
+	static unsigned * k;
+
+	static Digest h;
+	Digest abcd;
+	DgstFctn fctn;
+	short m, o, g;
+	unsigned f;
+	short * rotn;
+	union
+	{
+		unsigned w[16];
+		char b[64];
+	}
+	mm;
+	int os = 0;
+	int grp, grps, q, p;
+	unsigned char *msg2;
+
+	if (k == NULL) k = calcKs(kspace);
+
+	for (q = 0; q < 4; q++) h[q] = h0[q];
+
+	{
+		grps = 1 + (mlen + 8) / 64;
+		msg2 = malloc(64 *grps);
+		memcpy(msg2, msg, mlen);
+		msg2[mlen] = (unsigned char) 0x80;
+		q = mlen + 1;
+		while (q < 64 *grps)
+		{
+			msg2[q] = 0;
+			q++;
+		}
+		{
+			WBunion u;
+			u.w = 8 * mlen;
+			q -= 8;
+			memcpy(msg2 + q, &u.w, 4);
+		}
+	}
+
+	for (grp = 0; grp < grps; grp++)
+	{
+		memcpy(mm.b, msg2 + os, 64);
+		for (q = 0; q < 4; q++) abcd[q] = h[q];
+		for (p = 0; p < 4; p++)
+		{
+			fctn = ff[p];
+			rotn = rots[p];
+			m = M[p];
+			o = O[p];
+			for (q = 0; q < 16; q++)
+			{
+				g = (m *q + o) % 16;
+				f = abcd[1] + rol(abcd[0] + fctn(abcd) + k[q + 16 *p] + mm.w[g], rotn[q % 4]);
+
+				abcd[0] = abcd[3];
+				abcd[3] = abcd[2];
+				abcd[2] = abcd[1];
+				abcd[1] = f;
+			}
+		}
+		for (p = 0; p < 4; p++)
+			h[p] += abcd[p];
+		os += 64;
+	}
+
+	if (msg2)
+		free(msg2);
+
+	return h;
+}
+
+char *get_mac()
+{
+	FILE * fp;
+	char *mac = malloc(18* sizeof(char));
+	fp = fopen("/sys/class/net/ap0/address", "r");
+	fgets(mac, 17, fp);
+	fclose(fp);
+	return mac;
+}
+
+char *get_serial()
+{
+	FILE * fp;
+	char *serial = malloc(21* sizeof(char));
+	fp = fopen("/etc/serial", "r");
+	fgets(serial, 20, fp);
+	return serial;
+}
+
+int gen_serial()
+{
+	// hexdump -n 16 -e '4/4 "%08X" 1 "\n"' /dev/random
+	if (fopen("/etc/serial", "r") == NULL)
+	{
+		system("/usr/bin/hexdump -n 16 -e '4/4 \"%08X\"' /dev/urandom > /etc/serial");
+	}
+}
+
+int gen_ssid()
+{
+	char *serial;
+	FILE * fp;
+	char ssid[20] = "CyberChallenge-";
+	serial = get_serial();
+	strncat(ssid, serial, 4);
+	fp = fopen("/etc/ssid", "w");
+	fprintf(fp, "%s", ssid);
+	fclose(fp);
+
+}
+
+int gen_key(char *serial, char *mac)
+{
+	FILE * fp;
+	char md5a[33];
+	char md5b[33];
+	char tmp[3];
+	char key[21];
+	char wstr[9];
+	char xstr[9];
+	char ystr[9];
+	char zstr[9];
+	uint32_t w, x, y, z;
+	long long int seed;
+	int j, k;
+	unsigned long int h;
+	WBunion u;
+
+	md5a[0] = '\0';
+	md5b[0] = '\0';
+
+	wstr[8] = '\0';
+	xstr[8] = '\0';
+	ystr[8] = '\0';
+	zstr[8] = '\0';
+
+	unsigned *d = md5(mac, strlen(mac));
+	for (j = 0; j < 4; j++)
+	{
+		u.w = d[j];
+		for (k = 0; k < 4; k++)
+		{
+			snprintf(tmp, 3, "%02x", u.b[k]);
+			strncat(md5a, tmp, 2);
+		}
+	}
+
+	unsigned *f = md5(serial, strlen(serial));
+	for (j = 0; j < 4; j++)
+	{
+		u.w = f[j];
+		for (k = 0; k < 4; k++)
+		{
+			snprintf(tmp, 3, "%02x", u.b[k]);
+			strncat(md5b, tmp, 2);
+		}
+	}
+
+	strncpy(wstr, md5a, 8);
+	strncpy(xstr, md5a + 8, 8);
+	strncpy(ystr, md5a + 16, 8);
+	strncpy(zstr, md5a + 24, 8);
+
+	w = strtoul(wstr, NULL, 16);
+	x = strtoul(xstr, NULL, 16);
+	y = strtoul(ystr, NULL, 16);
+	z = strtoul(zstr, NULL, 16);
+
+	for (int i = 0; i < 20; ++i)
+	{
+		uint32_t t = x;
+		t ^= t << 11U;
+		t ^= t >> 8U;
+		x = y;
+		y = z;
+		z = w;
+		w ^= w >> 19U;
+		w ^= t;
+		key[i] = md5b[t % 20];
+	}
+	key[20] = '\0';
+
+	fp = fopen("/etc/wpa", "w");
+	fprintf(fp, "%s", key);
+	fclose(fp);
+}
+
+int main()
+{
+	char *mac;
+	char *serial;
+
+	gen_serial();
+	gen_ssid();
+	mac = get_mac();
+	serial = get_serial();
+	gen_key(mac, serial);
+
+	return 0;
 }