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  1. 1. Encryption Presented By: Aaina katyal
  2. 2. Contents <ul><li>Introduction to Encryption </li></ul><ul><li>Why is encryption necessary? </li></ul><ul><li>Benefits of Data Encryption </li></ul><ul><li>How to encrypt a file in </li></ul><ul><li>Windows XP </li></ul><ul><li>Types of Encryption </li></ul><ul><li>Common terms </li></ul>
  3. 3. <ul><li>Introduction to Encryption </li></ul><ul><li>Encryption is the conversion of data into a form, that cannot be easily understood by unauthorized people </li></ul><ul><li>The translation of data into a secret code. Encryption is the most effective way to achieve data security. To read an encrypted file, you must have </li></ul><ul><li>access to a secret key that enables </li></ul><ul><li>you to decrypt it. </li></ul><ul><li>Plain text </li></ul><ul><li>Cipher text. </li></ul>
  4. 4. Why is encryption necessary? <ul><li>Encryption is taking straight text and scrambling it for security purposes. </li></ul><ul><li>It's like a Locker system. You put any valuables and lock it using a code. The necessity of encryption is mainly to </li></ul><ul><li>protect your documents </li></ul>
  5. 5. Benefits of Data Encryption <ul><li>Flexibility </li></ul><ul><li>Transparency </li></ul>
  6. 6. Process
  7. 7. How to encrypt a file <ul><li>Click Start, point to </li></ul><ul><li>All Programs, point to </li></ul><ul><li>Accessories, and then </li></ul><ul><li>click Windows Explorer. </li></ul>
  8. 8. <ul><li>If you want to encrypt only the file, click Encrypt the file only, and then click OK. </li></ul><ul><li>If you want to encrypt the file and the folder in which it is located, click Encrypt the file and the parent folder, and then click ok. </li></ul>
  9. 9. <ul><li>Symmetric </li></ul><ul><li>- same secret, password or key is used to encrypt and to decrypt. </li></ul><ul><li>Asymmetric </li></ul><ul><li>- It uses two different keys - a public key and a  private key . </li></ul>
  10. 10. <ul><li>Common Terms </li></ul><ul><li>Encrypt </li></ul><ul><li>- To alter information using a code . </li></ul><ul><li>Decrypt </li></ul><ul><li>- Process of converting encrypted data back into its original form. </li></ul><ul><li>Public key and Private key </li></ul>