Authentication-Based Vehicle-to-Vehicle Secure Communication for VANETs

Algorithm 2

PGRA.

	unsigned char s[256]
	void RC4_PGRA (unsigned char  s, unsigned char  data)
	{int i = 0, int j = 0, int t = 0;
	unsigned long k = 0;
	unsigned char tmp = 0;
	len = strlen (data)
	for (k = 0; k < len; k++) {i = (i + 1)%256; j = (j + s[i])%256;
	tmp = s[i]; s[i] = s[j];
	s[j] = tmp;
	t = (s[i] + s[j])%256;
	Data[k] ^ = s[t];}
	}