2.
Data encryption definition.
Types of data encryption.
Difference between symmetric and asymmetric.
Encryption Methods.
Data Encryption Standard (DES).
Public Key Cryptosystem
CONTENT
3.
Data encryption refers to mathematical
calculations and algorithmic schemes that
transform plaintext into cyphertext, a form that
is non-readable to unauthorized parties. The
recipient of an encrypted message uses a key
which triggers the algorithm mechanism to
decrypt the data, transforming it to the original
plaintext version
Data encryption definition
7. .
Symmetric key
encryption is also
known as private
encryption, because it
uses the same key and
same cryptographic
algorithm to encrypt
and decrypt data.
8. A symmetric encryption scheme
has five ingredients
* Plaintext
* Encryption Algorithm
* Secret key
* Cipher Text
* Decription
11.
The symmetric one key is used for symmetric
and a symmetric but in asymmetric different
keys are use for encryption and description.
In symmetric, sender and receiver must share
the algorithm and key but in a symmetric
sender and receiver must have one matched
pair of keys.
In symmetric key must be kept secret but in
asymmetric two keys must of kept secret.
Difference b/w Asymmetric &
Symmetric Encryption
