CRYPTOGRAPHY CERTIFICATION PAPER 2026 FULL SOLUTION GRADED A+

CRYPTOGRAPHY CERTIFICATION PAPER
2026 FULL SOLUTION GRADED A+

●● Plaintext. Answer: The original readable message before encryption.


●● Ciphertext. Answer: The encrypted version of a message that cannot
be understood without the key.


●● Encryption (Enciphering). Answer: The process of converting
plaintext into ciphertext using an algorithm and a key.


●● Decryption (Deciphering). Answer: The process of converting
ciphertext back into readable plaintext using the correct key.


●● Cryptanalysis. Answer: The study and practice of breaking
encryption to recover the plaintext without knowing the key.


●● Cryptology. Answer: The study of both cryptography and
cryptanalysis.


●● Cipher / Cryptographic System (a scheme). Answer: A method or
algorithm used to encrypt and decrypt data using keys.