CLO$2.$ Perform Encryption$/$Decryption of Messages using various cryptographic techniques

You have to show working $($No marks without working$)$

$1.$ Encrypt the following message using Caeser cipher $(1$ mark$)$

Plain text$=$YOUR FULL NAME $($REPLACE WITH YOUR FULL NAME$)$

Key: $14$

$2.$ Decrypt the following message using caeser cipher $(1$ mark$)$

Cipher text $=$ CJR OJ YZXMTKO

Key $=21$

$3.$ Break the following message encrypted using caeser cipher $(2$ marks$)$

Cipher text $=$ ZGO USF A TJWSC

$4.$ Encrypt using Mono Alphabetic cipher $(1$ mark$)$

Plain Text $=$ THIS IS A PLAINTEXT

Key $=$ WGHXyIZJKLRSTUVMQNOPABCDEF

$5.$ Decrypt using Mono Alphabetic Cipher $(1$ mark$)$

Cipher text $=$ Pvxwe ko w Zvvx Xwe

Key $=$ WGHXyIZJKLRSTUVMQNOPABCDEF

$6.$ Break the follow message encrypted with mono alphabetic substitution cipher. $(3$ marks$)$

$7.$ Enter the key you used for Q$6(1$ mark$)$

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