BACHELOR OF BUSINESS ADMINISTRATION

Detailed explanation-1: -This part of the process is called encryption (sometimes encipherment ). The ciphertext is transmitted to the receiver. The receiver converts the ciphertext message back to its plaintext form. This part of the process is called decryption (sometimes decipherment ).

Detailed explanation-2: -To decrypt, take the first letter of the ciphertext and the first letter of the key, and subtract their value (letters have a value equal to their position in the alphabet starting from 0). If the result is negative, add 26 (26=the number of letters in the alphabet), the result gives the rank of the plain letter.

Detailed explanation-3: -Ciphertext is encrypted text transformed from plaintext using an encryption algorithm. Ciphertext can’t be read until it has been converted into plaintext (decrypted) with a key. The decryption cipher is an algorithm that transforms the ciphertext back into plaintext.

Detailed explanation-4: -The process of converting ciphertext to plain text is called decryption.

Detailed explanation-5: -Decryption is the process of converting ciphertext back to plaintext. To encrypt more than a small amount of data, symmetric encryption is used. A symmetric key is used during both the encryption and decryption processes.