Use the instructor provided xor code to implement a scheme that allows you to encrypt and decrypt some data using symmetric encryption principles.

-you can implement any scheme that you want. either one of the schemes discussed in the class or a new one that you designed on your own.

-the key aspect is that you should generate several blocks from the input and you should do several rounds of encoding.

-implement the python code and show your results.

here is the provided code:

## xor script

from os import urandom



def genkey(length):
return bytearray(urandom(lenght))



def encrypt(plaintext, key):
return bytearray([ ord(plaintext[i]) ^ key[i] for i in range(len(



def main():
mymessage = "this is the plain text"
key = genkey
cipher = encrypt(mymessage, key)
print str(cipher)
decrypted_message = decrypt(cipher, key)
print decrypted_message
if decrypted (encrypt(mymessage, key) , key ) == mymessage:
print "it works"
else:
print "somthing failed"

because is corrupted like north lol actually it is because they were not school related or they were not related to the question.

the answer is e ; )(:

the benefits of raising bc’s minimum wage to $15 through a

series of pre-announced staged increases far outweigh the likely

costs. claims that such an increase will lead to massive job losses

in low-wage sectors of the economy are not credible.

• an increase to $15 would result in some job losses. however,

the likely impact is less than a 1 per cent reduction in the overall

provincial employment rate, and a 7.6 per cent reduction in the

employment rate for those currently making between $10.25

and $15 per hour.

• the large job loss impacts predicted by some opponents of

minimum wages misrepresent the existing economic research. in

reading and using that research, it is important to recognize that

estimates showing job loss effects of minimum wage increases

apply only to teenagers. estimated effects for young adult and

adult workers range from insignificant to non-existent.

• focusing on teenage workers plays up an inaccurate stereotype

about who earns very low wages in bc and leads to exaggerated

claims about job losses. only 26 per cent of those currently making

between $10.25 and $12 are teenagers, and only 5 per cent

of those making between $12 and $15 are teenagers.