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Commit 965d88c

shivansh2310abranhe

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Added implementation of Hill_cipher In python

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	`1`	`+import numpy as np`
	`2`	`+s=list(input("Enter a string"))`
	`3`	`+c=[]`
	`4`	`+for i in range(len(s)):`
	`5`	`+ c.append(ord(s[i])-65)`
	`6`	`+`
	`7`	`+arr= np.array(c)`
	`8`	`+`
	`9`	`+a1=np.transpose(arr)`
	`10`	`+print(a1)`
	`11`	`+a1= a1.reshape(3,1)`
	`12`	`+print(a1.shape)`
	`13`	`+`
	`14`	`+`
	`15`	`+#key input`
	`16`	`+print("Enter the key for the encryption")`
	`17`	`+R = int(input("rows:"))`
	`18`	`+C = int(input("columns:"))`
	`19`	`+matrix = []`
	`20`	`+print("Enter the key:")`
	`21`	`+`
	`22`	`+for i in range(R):`
	`23`	`+ a =[]`
	`24`	`+ for j in range(C):`
	`25`	`+ a.append(int(input()))`
	`26`	`+ matrix.append(a)`
	`27`	`+`
	`28`	`+for i in range(R):`
	`29`	`+ for j in range(C):`
	`30`	`+ print(matrix[i][j], end = " ")`
	`31`	`+matrix = np.array(matrix)`
	`32`	`+print(matrix.shape)`
	`33`	`+print(matrix[1][1])`
	`34`	`+`
	`35`	`+mul=np.matmul(matrix,a1)`
	`36`	`+mul = np.array(mul)`
	`37`	`+print(mul.shape)`
	`38`	`+print(mul)`
	`39`	`+for i in range(R):`
	`40`	`+ mul[i]=mul[i]%26`
	`41`	`+`
	`42`	`+print(mul)`

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