Question

Discuss the role of cryptography in maintaining confidentiality and privacy of data.

Answer 1

Cryptography is a science which is used to secure the information and data by strong encryption methods. Cryptography is an art which helps to converting the original text into unintelligible text and vice versa.

The role of cryptography in maintaining confidentiality and privacy of data:

Confidentiality and Privacy of data

• Confidentiality means keep your data privately.
• When we are talking about confidentiality that means we have to protect the data and information disclosure to unauthorized parties.
• Information has contained bank account statement, personal information, credit card number, etc. Everyone in the world wants to keep secret.
• In cryptography we have some encryption methods which can convert the plain text into cipher text so that the private information is not understand by the unauthorized parties.
• Some methods of encryption are: file permission, access control list, SSL/TLS etc.

There are two types of cryptography:

• Symmetric Cryptography: In which the sender and receiver shared the same key for encryption and decryption.
• Asymmetric Cryptography: In which the sender and receiver shared the different key at both ends. Sender use one key for encrypt the data and recipient use a different key to decrypt the data.