Playfair cipher: Difference between revisions
Content added Content deleted
(Added Kotlin) |
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} |
} |
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class Playfair( |
class Playfair(keyword: String, val pfo: PlayfairOption) { |
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private val table: Array<CharArray> = Array(5, { CharArray(5) }) // 5 x 5 char array |
private val table: Array<CharArray> = Array(5, { CharArray(5) }) // 5 x 5 char array |
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} |
} |
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fun encode(plainText: String): String { |
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val cleanText = getCleanText(plainText) |
val cleanText = getCleanText(plainText) |
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var cipherText = "" |
var cipherText = "" |
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val length = cleanText.length |
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for (i in 0 until length step 2) { |
for (i in 0 until length step 2) { |
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val (row1, col1) = findChar(cleanText[i]) |
val (row1, col1) = findChar(cleanText[i]) |
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} |
} |
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fun decode(cipherText: String): String { |
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var decodedText = "" |
var decodedText = "" |
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val length = cipherText.length |
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for (i in 0 until length step 3) { // cipherText will include spaces so we need to skip them |
for (i in 0 until length step 3) { // cipherText will include spaces so we need to skip them |
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val (row1, col1) = findChar(cipherText[i]) |
val (row1, col1) = findChar(cipherText[i]) |
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else -> table[row1][col2].toString() + table[row2][col1] |
else -> table[row1][col2].toString() + table[row2][col1] |
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} |
} |
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if (i < length - 1) decodedText += " " |
if (i < length - 1) decodedText += " " |
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} |
} |
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return decodedText |
return decodedText |
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} |
} |
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fun printTable() { |
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println("The table to be used is :\n") |
println("The table to be used is :\n") |
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for (i in 0..4) { |
for (i in 0..4) { |
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