applicationsA block cipher is one in which a block of plaintext is treated as a whole and used to produce a ciphertext block of equal length. Typically‚ a block size of 64 or 128 bits is used. As with a stream cipher‚ the two users share a symmetric encryption key. A stream cipher is one that encrypts a digital data stream one bit or one byte at a time. In the ideal case‚ a one-time pad version of the Vernam cipher would be used ‚in which the keystream (k ) is as long as the plaintext bit stream (p).
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Beach on a sunny day. The blazing sun beats down on the smooth‚ weathered rocks of the cliff side. The crisp seaweed pushed onto the rocks by the waves‚ lay baking at the sea’s edge‚ occasionally moving with the tide. The clear blue sea’s waves rattle the tiny pebbles embedded in the golden sand. The foam from the waves cover a small child’s forgotten sandcastle‚ bringing it down with a dull crash. The high tide pushes back the crowd of people to the beach’s edge. Ice cream stalls and candy floss
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The Fire “Is this a dream?” I thought to myself. Looking off into the vast emptiness‚ the only thing surrounding me was darkness. It was a cold October night; all was hushed except for the gentle breeze sweeping through the trees whispering my name. The chillness of the stale air gave me shivers from head to toe and at that moment I felt unsafe. Suddenly‚ I spotted a glowing light off in the distance‚ and knowing it was my only chance of safety I ran towards it. As I approached this mysterious
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December Beach Days in Hawaii A beach in Hawaii on a December day is like day at a lake in mid a August. The beach smells fresh‚ almost like a new ocean breeze air freshener The sand is hot and looks like gold blended in with little white specks‚ it sparkles like the water running offthe swimmers back and feels like walking on coals from buming grill. Not far from the a shore‚ you can see the coral sitting still in the wild and shallow water. Turtles drift in to see all the people. The palm
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Many people have their favourite city. I also have my favourite one. It’s called Aberystwyth. It’s on the west coast of Wales. It isn’t big. I was there two years ago. The city is small but very nice. Most part of the town is very old and has got many historical buildings‚ for example the ruins of the castle or the Local Folk Museum. The most interesting and attractive place in the whole town is definitely "The Pier ". It is a massive‚ wooden construction going out towards the sea. That construction
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Summer Vacation I have a great summer. At first month I went to summer school for Grade 10 History‚ even though it was super busy but I still having a great time with my teacher and classmates. At the second month‚ my parents decided take me and my younger sister for a driving vacation where headed for Canada’s biggest water park. This water park is locate at Alberta‚ so we decided to travel through all the western Canada. After about 13 days travel in Canada‚ we flew to Miami with another
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MSTT was able to get Nelson’s phone number and reached out to him regarding meeting for a session. Nelson did not want to meet for a session‚ but he did speak to MSTT over the phone. Nelson explained he does not have a big role in Jose’s life at this time because Juminia will not allow it. He explained she has a lot of issues with him and this last issue has made things worse between them. Nelson explained recently‚ he found out while he was in jail Juminia put the family internet in his name. He
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Persuasive Speech Outline General purpose: To persuade. Specific purpose: At the end of my speech my audience will identify 2 consequences of drinking and drunk driving‚ and also 2 safe ways you can avoid those consequences. Central Idea: Drunk driving is against the law and it causes harm to many people‚ but with the right precautions‚ many lives can be saved. Introduction Imagine receiving a call from a police officer telling you that there’s been a terrible accident due to a drunk driver
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Can One Raise A Sunken Vessel With Ping-Pong Balls? Being assigned an I-Search paper‚ I was to acquire a question that was appealing to me‚ and that I did. It all started after mindless searches via the internet and some procrastination‚ to which I found myself to be in front of the television. While I knew I should be looking for a suitable question‚ I still sat there watching on. I happened to be flipping through the channels when a commercial for the Mythbusters brought about the question
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Creative writing As I wind down my window piercing sounds of cicada instantaneously bash my ear drums with their high pitched drill echoing into the bush. Hot air swells into the open window‚ and is being pushed back out by the ice cold air conditioning which effortlessly hums out of the vents. The strong sweet smell of summer fills my nostrils with every breath I take. It was just like I had left it so many years ago. The rigid road leaves a enormous dust cloud behind me. It feels like I am a
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