A common technique for obfuscating data is to use exclusive-or (XOR) with some key; it is inexpensive and symmetric. A problem occurs when this is used on file formats like portable executable where there are many null bytes, since XORing nulls with the key ends up writing the key out. A slightly more complex algorithm uses a Linear Feedback Shift Register (LFSR) to produce a key stream, which will be XORed with the data. A generic LFSR is:

Whats are the different parts of no verbal comunication, especially body language?

7. the cullerton park district holds a mini-olympics each summer. create a class named participant with fields for a name, age, and street address. include a constructor that assigns parameter values to each field and a tostring() method that returns a string containing all the values. also include an equals() method that determines two participants are equal if they have the same values in all three fields. create an application with two arrays of at least eight participants each—one holds participants in the mini-marathon, and the other holds participants in the diving competition. prompt the user for participant values. after the data values are entered, display values for participants who are in both events. save the files as participant.java and twoeventparticipants.java.

Aline ab is in 1st quadrant , its ends a and b respectively are 20mm and 60mm infront of vp respectively . the distance between the end projectors is 75 mm . the line is inclined at 30 degrees to the hp and end a 20 degrees above the hp . draw its projections , find true length