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This repository was archived by the owner on Sep 7, 2025. It is now read-only.
/pythonPublic archive

Commitdcbc0ea

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Railfence Cipher implementation in cipher
1 parente743b42 commitdcbc0ea

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defrailencrypt(st,k):
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c=0
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x=0
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m=[[0]* (len(st))foriinrange(k)]
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forrinrange(len(st)):
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m[c][r]=st[r]
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ifx==0:
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ifc== (k-1):
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x=1
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c-=1
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else:
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c+=1
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else:
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ifc==0:
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x=0
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c+=1
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else:
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c-=1
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result= []
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foriinrange(k):
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forjinrange(len(st)):
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ifm[i][j]!=0:
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result.append(m[i][j])
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print("CipherText:","" .join(result))
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defraildecrypt(st,k):
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c ,x=0 ,0
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m=[[0]* (len(st))foriinrange(k)]
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forrinrange(len(st)):
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m[c][r]=1
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ifx==0:
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ifc== (k-1):
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x=1
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c-=1
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else:
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c+=1
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else:
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ifc==0:
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x=0
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c+=1
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else:
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c-=1
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result= []
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c ,x=0 ,0
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foriinrange(k):
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forjinrange(len(st)):
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ifm[i][j]==1:
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m[i][j]=st[x]
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x+=1
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forrinrange(len(st)):
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ifm[c][r]!=0:
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result.append(m[c][r])
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ifx==0:
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ifc== (k-1):
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x=1
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c-=1
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else:
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c+=1
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else:
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ifc==0:
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x=0
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c+=1
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else:
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c-=1
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print("PlainText:","" .join(result))
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if__name__=="__main__":
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string=input("Enter the Message:")
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string=string.upper()
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key=int(input("Enter the Key:"))
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n=int(input("1.Encryption\n2.Decryption\nInput Your choice:"))
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if(n==1):
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railencrypt(string,key)
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elif(n==2):
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raildecrypt(string,key)
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else:
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print("Error")

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