Cryptography

1
Cryptography Keeping information secure
There are two types of encryption one that will
prevent your sister from reading your diary and
one that will prevent your government. - Bruce
Schneier

• What is cryptography? Why should you care about
  it?
• How and why you should use it!
• Topics covered
• A brief history of cryptography.
• Cryptography how does it work?
• Why do we need it?
• How do we apply it for file encryption?
• How do we apply it for communication purposes?