Commit 0c28705

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Columnar Algorithm added

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12 files changed

+34

-12

lines changed

SecurityLibrary
- MainAlgorithms
  - Columnar.cs
- bin/Debug
  - SecurityLibrary.dll
  - SecurityLibrary.pdb
- obj/Debug
  - SecurityLibrary.dll
  - SecurityLibrary.pdb
SecurityPackageTest
- bin/Debug
- obj/Debug

12 files changed

+34

-12

lines changed

`‎SecurityLibrary/MainAlgorithms/Columnar.cs`

Lines changed: 34 additions & 12 deletions

Original file line number	Diff line number	Diff line change
`@@ -14,27 +14,49 @@ public List<int> Analyse(string plainText, string cipherText)`
`14`	`14`	`throw new NotImplementedException();`
`15`	`15`	`}`
`16`	`16`
	`17`	`+`
	`18`	`+`
	`19`	`+`
`17`	`20`	`public string Decrypt(string cipherText, List<int> key)`
`18`	`21`	`{`
`19`		`- List<List<char>> table = new List<List<char>>();`
`20`		`- Dictionary<int, string> cip = new Dictionary<int, string>();`
`21`		`- string PT = "";`
`22`		`- cipherText = cipherText.ToLower();`
`23`		`- int columns = key.Count;`
`24`		`- int rows = (int)Math.Ceiling((double)cipherText.Length / columns);`
`25`		`- for (int i = 0; i < rows; i++)`
	`22`	`+ cipherText = cipherText.ToUpper();`
	`23`	`+ int x = cipherText.Length;`
	`24`	`+ if (x % key.Count == 0)`
`26`	`25`	`{`
`27`		`- table.Add(new List<char>());`
`28`	`26`	`}`
`29`		`- for(inti=0;i<columns;i++)`
	`27`	`+ else`
`30`	`28`	`{`
`31`		`- for (int j = 0; j < rows; j++)`
	`29`	`+ x += key.Count;`
	`30`	`+ }`
	`31`	`+ double col = x / key.Count;`
	`32`	`+ int c = (int)(col);`
	`33`	`+ string finalll = "";`
	`34`	`+ char[,] enc = new char[c, key.Count];`
	`35`	`+ int k = 0;`
	`36`	`+ int tmp = 0;`
	`37`	`+ for (int i = 0; i < key.Count; i++)`
	`38`	`+ {`
	`39`	`+ k = key.IndexOf(i + 1);`
	`40`	`+`
	`41`	`+ for (int j = 0; j < col; j++)`
	`42`	`+ {`
	`43`	`+ if (tmp < cipherText.Length)`
	`44`	`+ {`
	`45`	`+ enc[j, k] = cipherText[tmp];`
	`46`	`+ tmp++;`
	`47`	`+ }`
	`48`	`+ }`
	`49`	`+ }`
	`50`	`+ for (int i = 0; i < col; i++)`
	`51`	`+ {`
	`52`	`+ for (int j = 0; j < key.Count; j++)`
`32`	`53`	`{`
`33`		`-`
	`54`	`+ finalll=finalll+enc[i,j];`
`34`	`55`	`}`
`35`	`56`	`}`
`36`	`57`
`37`		`- return "";`
	`58`	`+`
	`59`	`+ return finalll.ToUpper();`
`38`	`60`	`}`
`39`	`61`
`40`	`62`	`public string Encrypt(string plainText, List<int> key)`