Assume that you use a cryptographic hash algorithm to produce a signature for a plain

text file named F$1.$ Call this signature S$1$ You make some changes to the file and save it

as F$2.$ You then use the same hash algorithm on F$2$ to produce a second signature

called S$2.$ You then perform additional edits to file F$2,$ removing any changes that were

made between F$1$ and F$2,$ and save the file as F$3.$ You once again use the same hash

algorithm on F$3$ to produce a third signature called S$3.$ What will the relationship be

between the three signature files S$1,$ S$2$ and S$3?$

a$.$ All three signatures will be identical.

b$.$ All three signatures will be different.

c$.$ S$1$ and S$2$ will be identical, but S$3$ will be different.

d$.$ S$1$ and S$3$ will be identical, but S$2$ will be different.

e$.$ S$2$ and S$3$ will be identical, but S$1$ will be different.

than $2128$ bits.

c$.$ The hash output or hash signature will contain $1$ bit for each $128-$bit block of

input.

d$.$ The same size as the input plus $128$ bits.

e$.$ More information is required to make this determination.