PolyAlphabitec-Cipher/Polyalphabitec_Cipher.py at master · SleepNotF0und/PolyAlphabitec-Cipher · GitHub

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while True:
    ch = int(input("Press 1 for encrypt || 2 for decrypt:-\n>>>"))
    if ch == 1:
        text = input("Text:").lower()

        sliced=[]
        for tx in range(len(text)//2):
            if text[tx*3:tx*3+3] != '':
                sliced.append(text[tx*3:tx*3+3])

        listed=[list(sl) for sl in sliced]

        encrypt=[]
        for li in listed:
            for i, x in enumerate(li):
                if i==0:
                    x = ord(x)+3
                    if x > ord('z'):
                        x -=26
                        encrypt.append(chr(x))
                    else:
                        encrypt.append(chr(x))
                elif i==1:
                    x = ord(x)+5
                    if x > ord('z'):
                        x -=26
                        encrypt.append(chr(x))
                    else:
                        encrypt.append(chr(x))
                elif i==2:
                    x = ord(x)+7
                    if x > ord('z'):
                        x -=26
                        encrypt.append(chr(x))
                    else:
                        encrypt.append(chr(x))
        print("==========================================")
        print("             !!! Encrypted !!!            ")
        print("".join(encrypt))
        print("==========================================\n")

    elif ch == 2:
        text = input("Text:").lower()

        sliced=[]
        for tx in range(len(text)//2):
            if text[tx*3:tx*3+3] != '':
                sliced.append(text[tx*3:tx*3+3])

        listed=[list(sl) for sl in sliced]

        decrypt=[]
        for li in listed:
            for i, x in enumerate(li):
                if i==0:
                    x = ord(x)-3
                    if x < ord('a'):
                        x +=26
                        decrypt.append(chr(x))
                    else:
                        decrypt.append(chr(x))
                elif i==1:
                    x = ord(x)-5
                    if x < ord('a'):
                        x +=26
                        decrypt.append(chr(x))
                    else:
                        decrypt.append(chr(x))
                elif i==2:
                    x = ord(x)-7
                    if x < ord('a'):
                        x +=26
                        decrypt.append(chr(x))
                    else:
                        decrypt.append(chr(x))
        print("==========================================")
        print("             !!! Decrypted !!!            ")
        print("".join(decrypt))
        print("==========================================\n")