Question

In: Computer Science

Decode the following secret ASCII message (reading across): 100 1000 110 0001 111 0110 110 0101...

Decode the following secret ASCII message (reading across):

100 1000 110 0001 111 0110 110 0101

010 0000 110 0001 010 0000 110 1110

110 1001 110 0011 110 0101 010 0000

110 0100 110 0001 111 1001 010 0001

Decode the following secret ASCII message (reading across):

100 1101 110 0101 110 0101 111 0100

010 0000 110 0001 111 0100 010 0000

110 1101 110 1001 110 0100 110 1110

110 1001 110 0111 110 1000 111 0100

010 1110

Solutions

Expert Solution

1)
1001000110000111101101100101010000011000010100000110111011010011100011110010101000001100100110000111110010100001
1001000 -> 72 -> H
1100001 -> 97 -> a
1110110 -> 118 -> v
1100101 -> 101 -> e
0100000 -> 32 ->
1100001 -> 97 -> a
0100000 -> 32 ->
1101110 -> 110 -> n
1101001 -> 105 -> i
1100011 -> 99 -> c
1100101 -> 101 -> e
0100000 -> 32 ->
1100100 -> 100 -> d
1100001 -> 97 -> a
1111001 -> 121 -> y
0100001 -> 33 -> !
1001000110000111101101100101010000011000010100000110111011010011100011110010101000001100100110000111110010100001 in ASCII is Have a nice day!
Answer: Have a nice day!

2)
10011011100101110010111101000100000110000111101000100000110110111010011100100110111011010011100111110100011101000101110
1001101 -> 77 -> M
1100101 -> 101 -> e
1100101 -> 101 -> e
1110100 -> 116 -> t
0100000 -> 32 ->  
1100001 -> 97 -> a
1110100 -> 116 -> t
0100000 -> 32 ->  
1101101 -> 109 -> m
1101001 -> 105 -> i
1100100 -> 100 -> d
1101110 -> 110 -> n
1101001 -> 105 -> i
1100111 -> 103 -> g
1101000 -> 104 -> h
1110100 -> 116 -> t
0101110 -> 46 -> .
10011011100101110010111101000100000110000111101000100000110110111010011100100110111011010011100111110100011101000101110 in ASCII is Meet at midnight.
Answer: Meet at midnight.



Related Solutions

Consider the following substitution block cipher: Plain-text 000 110 001 100 010 111 011 001 100...
Consider the following substitution block cipher: Plain-text 000 110 001 100 010 111 011 001 100 101 101 000 110 010 111 011 Cipher-text [10]                   Compute the cipher-text belonging to plaintext 001 110 000 101 110 (using a block size of 3 bits) for the Electronic Code Book (ECB) mode and Cipher Block Chaining (CBC) mode taking IV = 111. Show the intermediate steps.
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