RSA (Rivest–Shamir–Adleman) cryptosystem is a public-key cryptosystem that is widely used for secure data transmissions. It was first described by three cryptographers, Ron Rivest, Adi Shamir, and Leonard Adleman, in 1977. And, the cryptosystem is named after the...
What is the Kerberos Protocol? Kerberos is a network authentication protocol using which a node in a non-secure network can verify the identity of another node securely. As per Greek mythology, Cerberus or Kerberos is a multi-headed dog whose job is to guard the gates...
The ElGamal encryption algorithm is a public key encryption algorithm that was described by the Egyptian cryptographer Taher Elgamal in 1985. This encryption algorithm is used in many places. Many of us may have also used this encryption algorithm in GNU Privacy Guard...
Computers containing sensitive information are often air-gapped to prevent data breaches. But air-gapping also cannot guarantee security. Attackers can use air-gap malware to steal sensitive data from air-gapped computers or networks. What is an air gap malware? How...
What is DMZ or Demilitarized Zone in computer networking? In computer security, DMZ or Demilitarized Zone is a physical or logical subnetwork that separates an organization’s internal network (LAN) from an untrusted network, usually the Internet. Usually, the servers...
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