What is Digital Certificate?
Terms related to Digital Certificate
Content of Digital Certificate
Types of Digital Certificate
Process of obtaining a certificate
What is Digital Certificate ?
A Digital Certificate ”An
attachment to an electronic
message used for security
Like a driver's license, a passport,
a student ID, a library card, or
other commonly used personal
Terms Related To Digital Certificate
Encryption: Encryption is converting of Plain Text into
Decryption- Decryption is reversing encryption via the
use of Public and Private Keys
Public key- Public key is made accessible to everyone.
Private key- Private key remains confidential to its
"Hey B, how
are you ?”
"Hey B, how
are you ?”
Content Of Digital Certificate
A Digital certificate Consist Of Two Parts Which
1. Data Section
2. Signature Section
There are four main types of digital certificates
1. Server Certificates.
2. Personal Certificates.
3. Organisation Certificate.
What Are Certification
Certification Authorities are the
digital world’s equivalent to
passport offices. They issue digital
certificates and validate holders’
identity and authority.
Virtual malls, electronic banking and other
electronic services are a commonplace offering
Online service. One’s concern about privacy
and security may prevent you from taking
advantage of the luxury; this is where digital
certificate comes in.
1. sender generates a publicprivate key
pair. Applies to CA for digital certificate
with the public key.
2.CA verifies senders identity and issues
digital certificate containing the public key.
3.CA publishes certificate to public, on-line
4.sender signs message with private key and
sends message to second party.
5. Receiving party verifies digital signature with sender's
public key and Recive message.
Bob’s public key,
signed by CA
Process in obtaining a certificate
For MS Explorer Users:
Open your MS Internet Explorer
Click on the Tools Menu
From the drop down list, select Internet
Click the Content tab
Click the view certificates button
Advantages Of Digital Certificate
Authentication: The persons / entities with whom
we are communicating are really who they say they
Integrity: The Data is Not Tampere.
Confidentiality: The information within the message
or transaction is kept confidential. It may only be
read and understood by the intended sender and
Access Control: Access to the protected information
is only realized by the intended person or entity.
Digital Certificate is used in message
authentication and key distribution. Digital
certificate authentication employs multiple
security mechanisms that help ensure
integrity of network communication. many
enterprises have found deployment of a
digital certificate system to be a necessity for
support of growing networks and remote