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What is the definition of Encapsulation?
Blocking data from being used by outside clients by keeping data private inside classes.
What is the definition of Cryptography?
The act of securing data using hash functions and ciphers.
What is the definition of Hash Functions?
Encrypting data using complex mathematical functions and are non-reversible, used for integrity.
What is the definition of Ciphers?
Encrypting data so that it can't be read by outside sources, but they can be reversed with a key.
What is a Key in cryptography?
A secret value used to encrypt and decrypt data.
How is encapsulation applied in real-world scenarios?
Protecting sensitive data in banking applications by restricting direct access to account balances.
How are hash functions applied in real-world scenarios?
Verifying the integrity of downloaded software to ensure it hasn't been tampered with.
How are ciphers applied in real-world scenarios?
Securing online transactions by encrypting credit card information.
What is the purpose of encapsulation?
To protect data by hiding it from unauthorized access and controlling how it's accessed and modified.
Why are hash functions used for integrity?
Because they are non-reversible, ensuring data hasn't been tampered with.
How do ciphers protect data?
By encrypting data so that it can't be read or understood by outside sources unless they have the key.
What is the role of a key in cryptography?
To decrypt data that has been encrypted using a cipher.
Why is it difficult to decrypt data without a key?
Because it requires trying many different combinations of keys, a process known as 'brute forcing,' which is time-consuming and complex.
What is the programmer's role in data security?
To design systems that prevent unauthorized access or misuse of sensitive data.
What are potential risks of widespread use of personal data?
Identity theft, financial fraud, and other forms of harm.