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A Digital Certificate is an electronic document used in cryptography to verify the ownership of a public key. It is issued by a trusted authority called a Certificate Authority (CA) and ensures secure communication over networks.
Digital certificates are widely used in SSL/TLS encryption, email security, and digital signatures.
They provide authentication, data integrity, and confidentiality, making them essential for secure transactions and protecting against man-in-the-middle attacks.
Digital Certification cryptography
Digital Certificates are used for identifying the author (who created the keys) and are generally issued by a certification authority (CA).
A Digital certificate includes:
1: User (entity) information.
2: User’s public key.
3: Digital signature of the CA.
4: Issue and expiry date.
Types of Digital certificates:
1: Secure Socket Layer (SSL) Server certificates.
2: Code signing certificates. 3: Client Certificates.
