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<title>CAESAR CIPHER</title>
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<h3>Julius Caesar</h3>
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<p>The <i>Caesar cipher</i> is named after Julius Caesar, who, according to <b>Suetonius</b>, used it with a shift of <b><i>three</i></b> to protect messages of military significance. While Caesar's was the first recorded use of this scheme, other substitution ciphers are known to have been used earlier. <br> <br>
<i>"If he had anything confidential to say, he wrote it in cipher, that is, by so changing the order of the letters of the alphabet, that not a word could be made out. If anyone wishes to decipher these, and get at their meaning, he must substitute the fourth letter of the alphabet, namely D, for A, and so with the others."
</i><center><b><i>-Suetonius</i></b></center><br><small>Source : From Wikipedia</small>
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<div> <h2><b><u>CAESAR CIPHER</u></b></h2>
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<center><pre align="center"><input type="text" id="input"placeholder="Enter a string" ></center><br>
<div id="shift"><b>SHIFT BY : </b><input type="number" id="key" value = "1" /></div>
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<div class="fun" onclick="encrypt()" >Encrypt</div>
<div class="fun" onclick="decrypt()">Decrypt</div>
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