Decrypt the message 'GVPJ' using Hill cipher taking the key as {Row1 = | Cryptography 2078

Cryptography20785 marksNumerical: Hill cipher decryptionSubstitution Techniques

Decrypt the message 'GVPJ' using Hill cipher taking the key as {Row1 = 3 7, Row2= 5 12}. [5]

Ciphertext: GVPJ - Key matrix: $K = \begin{pmatrix} 3 & 7 \\ 5 & 12 \end{pmatrix}$ - Letter encoding: A=0, B=1, ..., Z=25 - Decryption: $P = K^{-1} \cdot C \pmod{26}$ --- G V P J ------------ 6 21 15 9 Pairs (column vectors): $$C1 = \begin{pmatrix} 6 \ 21 \end{pmatrix}, \quad C2 = \begin{pmatr...

Ciphertext: GVPJ - Key matrix: $K = \begin{pmatrix} 3 & 7 \ 5 & 12 \end{pmatrix}$ - Letter encoding: A=0, B=1, ..., Z=25 - Decryption: $P = K^{-1} \cdot C \pmod{26}$ --- G V P J ------------ 6 21 15 9 Pairs (column vectors): $$C1 = \begin{pmatrix} 6 \ 21 \end{pmatrix}, \quad C2 = \begin{pmatr...