Questions in Network Security Coursework Example | Topics and Well Written Essays - 250 words

Questions in Network Security - Coursework Example te’s holder or certificate’s subject and attest that the generated certificate’s public key is that of the certificate’s holder or certificate’s subject (Shoniregun 84). In symmetric key encryption (secret key encryption) method, data is scrambled by pressing same key to both decrypt and encrypt it while in asymmetric encryption (public key encryption), different keys are used to decrypt and encrypt. In addition to this, asymmetric encryption allows sharing of key since decryption key is kept to oneself while with symmetric key encryption, the key have to be kept secret. In combined a/symmetric encryption, a random symmetric key is created to encrypt the data then the key is encrypted asymmetrically. The key is added to the encrypted message after being asymmetrically encrypted (Shoniregun 122). After the receiver gets the key, using their private key they decrypt it and decrypts the message using it. Combined a/symmetric cryptography has several advantages over both cryptographies: Asymmetric encryption helps in preventing creation of point attack while trying to improve feasibility of encrypted information through use of clearinghouse in symmetric encryption involving a large number of people. SSL and TLS certificates are small sized data files used to digitally attach a cryptographic key onto organizational details. They both designed to serve the purpose of ensuring communications security over any computer network. These protocols directly operates on TCP’s top (though, there they are also implemented to suite datagram based protocols like UDP). Through this, secure connection is still provided and still top layers protocols remain unchanged (like HTTP). Underneath the SSL layer, HTTP and HTTPS are identical. When using TLS/SSL appropriately, all what is visible to an attacker over the cable is which port and IP you are connected to, roughly what compression and encryption is used and the quantity of data you are sending. He/she can also be able

Nurture and Nature in the early human development Assignment

Nurture and Nature in the early human development - Assignment Example However, due to the rise in behaviourism, experts opined that nurture played a role in human development. This argument was based on the fact that training in early childhood can make the child develop into any kind of adult. However, most psychologists of current generation are of the opinion that both nature and nurture have a role in the development of humans and adulthood depends on the interactions between these two aspects. Most attributes of human beings, like emotional stability, sociability and psychiatric illnesses are a result of interaction between genetic and environmental factors. Experts are of the opinion that even innate biological attributes are modifiable by environmental factors. A good example for this is development of congenital anomalies and other problems in the fetus consequent to exposure to infectious diseases, maternal malnutrition, maternal smoking and maternal alcoholism. Similarly while development of milestones is programmed genetically and all childr en go through similar milestones at similar ages, some research has shown that achievement of milestones, to some extent depends on the stimulation. Similar features were noted in speech development. While newborns are born with functioning sensory, development of the sensory systems depends on environmental stimulation. For example, at birth newborns watch only flashing lights, or ridges and movements of head. They however gradually learn to recognize faces and identify them. Newborns start at loud noises and turn their head towards sound. But this disappears at 6 weeks and reemerges at 3-4 months age when the infant even turns the eyes towards the source of sound. Speech development occurs based on perception of sounds. Babies also have taste sensation and touch sensation and have preference to sweet taste and different types of touch. Their expressions towards different tastes are different. They also have good olfactory sensation and behave