Data Encryption and Authentication Methods Term Paper

Data Encryption and Authentication Methods - Term Paper Example The recipient's identity is usually established online through digital signatures or certificates. Under this encryption, the user has to manually select the files and folders to be encrypted and run special command/ menu item to encrypt and decrypt the selected objects through certain software. Thus, the user must always remember to encrypt the relevant data before logging off. This gives scope for human errors, where the user might forget to encrypt the data before leaving the system. However, manual encryption is technically more reliable and simple than other forms of encryption.[Cryprite.com] In this form of encryption, encryption is compulsorily done permanently on the disc during every read and write task. The encrypted data is stored in the transparently encrypted volumes. In this type of encryption, encrypted data can only be transferred from computer to computer through diskettes. For the purpose of low level encryption, transparent encryption is the safest way to secure one's data. However, in this type of encryption, there are problems in implementation as it doesn't generally fit into multi-user networks. This kind of encryption involves encrypting the data before and after certain read /write functions are completed or certain confidential files are accessed. When a file is copied or moved, it is ciphered in a secret folder and when it is opened through a standard application, it is deciphered. Again, when the application is to be shut down, the files are enciphered. Thus, at Start up, the encrypted files/folders are deciphered from specified folders/files and enciphered again during shutdown. A disadvantage is that when the data to be encrypted is too large, it may lead to loss of data and reduction in efficiency of the computer. 1 Protection and authentication of data can be also be achieved at three levels : Email and file-encryption The use of passwords while accessing e-mails provides the first level of security. These mails could be encrypted and sent over a secure network by the sender and again decoded and read by the receiver. However, with the use of internet expanding to unlimited proportions, files can be intercepted and sensitive information can be accessed by hackers. It is also possible to hack or send phishing mails through e-mails. Data encryption during transmission using VPNs Transmission encryption technologies include DES (Data Encryption Standard) or AES (Advanced Encryption Standard) .This is a relatively safer way of transmitting information over the internet. A virtual private network cannot be easily accessed by intruders or hackers and information is encrypted using standard procedures like DES or AES. Password encryption on public interfaces An example of asymmetrical key provision; this type of encryption involves the use of a plug point that has to manage keys, decide the algorithm to use for encryption and protect the master key or secret. Classification based on keys : Cryptography is the process of disguising data as cipher text before sending it over a network. This disguised data is encrypted by applying an algorithm to a

Meaning Essay Example | Topics and Well Written Essays - 2500 words

Meaning - Essay Example The basement and crawl space are major sources of heat loss. They can be sealed by mechanical key locks as a ventilation mechanism. The crawlspace walls can be insulated with rigid insulation. As for the base walls, a layer of insulation can be attached either on the inside or outside4. 16. ICF (Insulated Concrete Form) Foundations: a green and sustainable building system that delivers a foundation or wall that is highly energy efficient, structurally  tough, and resistant to fire fire and sound. 17. Sump pump and French-drain locations: sump pump is located in the basement and collects water that has accumulated in the water collection sump basin. The French drain is a trench with perforated pipes or filled with gravel that redirects ground and surface water away from a given area7. Doors are covered in Section R612 of the 2012 International Code Requirements. For example, during the times of fire the doors deter the spread of flames and smoke. The owner needs to be aware the hazards the glass doors could pose15. iv. COM Check – building program that allows simplifies compliance for building officials, plan checkers, and inspectors by allowing them to quickly determine whether new commercial or high-rise residential buildings, additions, and alterations meet the requirements of the IECC and ASHRAE Standard 90.1, as well as several state-specific codes. Buildipedia. Structural Steel Framing . http://buildipedia.com/knowledgebase/division-05-metals/05-10-00-structural-metal-framing/05-12-00-structural-steel-framing/05-12-00-structural-steel-framing>. Web July, 22, 2009. Accessed april 24,