Using Vigenere cipher with key = “worlds”, encrypt the plain text “hel | Cryptography 2081

Cryptography20815 marksNumerical: Vigenere cipher encryptionSubstitution Techniques

Using Vigenere cipher with key = “worlds”, encrypt the plain text “hello everyone”. [5]

Plaintext: hello everyone → letters only: helloeveryone (13 letters) - Key: worlds - Formula: $Ci = (Pi + Ki) \bmod 26$ , with A=0, ..., Z=25 Pos 1 2 3 4 5 6 7 8 9 10 11 12 13 ------------------------------------------------ P h e l l o e v e r y o n e K w o r l d s w o r l d s w P h=7 e=4 l=11 ...

Plaintext: hello everyone → letters only: helloeveryone (13 letters) - Key: worlds - Formula: $Ci = (Pi + Ki) \bmod 26$, with A=0, ..., Z=25 Pos 1 2 3 4 5 6 7 8 9 10 11 12 13 ------------------------------------------------ P h e l l o e v e r y o n e K w o r l d s w o r l d s w P h=7 e=4 l=11 ...