What is DES? DES or Data Encryption Standard is a symmetric key algorithm that was developed in the 1970s and submitted to the National Bureau of Standards (NBS), which is now known as the National Institute of Standards and Technology (NIST). The algorithm was...
What is homomorphic encryption? Homomorphic encryption is a type of encryption that allows computation on ciphertexts. Later, when we decrypt the ciphertext, the operation performed on the ciphertext matches with the result of the operation performed on the...
When a network packet travels from one router to another, each router looks at the network layer header that contains a source IP address and a destination IP address and takes routing decisions based on that. Each router analyzes the packet header and chooses the...
An Offline Root Certificate Authority is a Certificate Authority (CA) that does not have network access and is kept in the powered-down state. Why do we need an Offline Root CA and how does an Offline Root CA work? In this article, we would discuss that in detail....
We use a chain of multiple certificates to verify the public key of an end entity. A certificate chain is an ordered list of certificates that enables a client to verify the end entity’s public key. How does the verification of digital certificates work? In this...
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