Q. ______________ employs a text string as a key that is implemented to do a series ofshifts on the plain-text. (Solved)
1. Shift Cipher
2. Block Cipher
3. Playfair Cipher
4. Vigenere Cipher
- d. Vigenere Cipher
1. Shift Cipher
2. Block Cipher
3. Playfair Cipher
4. Vigenere Cipher