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Encryption
Presented By:Aaina katyal
Contents Introduction to Encryption Why is encryption necessary? Benefits of Data Encryption How to encrypt a file in Windows XP Types of Encryption Common terms
Introduction to Encryption
Encryption is the conversion of data into a form, that cannot be easily understood by unauthorized people
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
access to a secret key that enables you to decrypt it. Plain text Cipher text.
Why is encryption necessary? Encryption is taking straight text and
scrambling it for security purposes. It's like a Locker system. You put any valuables
and lock it using a code. The necessity of encryption is mainly to
protect your documents
Benefits of Data Encryption
Flexibility
Transparency
Process
How to encrypt a file
Click Start, point to All Programs, point toAccessories, and then click Windows Explorer.
If you want to encrypt only the file, click Encrypt the file only, and then click OK.
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.
Symmetric - same secret, password or key is used to encrypt and
to decrypt.
Asymmetric - It uses two different keys - a public key and a private
key .
Common Terms
Encrypt - To alter information using a code .
Decrypt - Process of converting encrypted data back into its
original form.
Public key and Private key
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