To enhance network security, Chen, Horng, & Yang (2008) postulate the use of public key cryptography. While there is a growing use of public key cryptography, there is still a shortcoming identified with the use of public key cryptography in the LAN and WAN environment. Since the public key is being kept in a public file, it is possible for an active intruder to forge the contents of the public key and use it to get access onto the data kept within the network system. To overcome the shortcoming identified with the public key cryptography, the private key cryptography is proposed because it has continued to gain recognition in the WAN and LAN security environment.
"The public key is normally used for encrypting messages and is publicly known while the private key is used for decrypting messages and is kept secret. However for generating ? digital signature, the private key is used to sign ? message that can be verified by the corresponding public key" (Murthy & Sudheendra 2008 P. 690).
With the importance of the private key, the security of the private key is important because there could be an unauthorized access to data, if the private key is compromised. The shortcoming of a private key is its large size because it may not be possible for a user to remember the private key each time it is required. Moreover, a sophisticated network attacker could exploit the password-based encryption. To address the shortcoming, the authors propose the use of a biometric security system to enhance the security of cryptographically strong key system. The benefit of a novel biometric-based technique is that a user does not need to "regenerates the private key by using his password, fingerprint and information stored in ? smart card." (Murthy & Sudheendra 2008 P. 690).
Based on the review of the previous work, the study provides the rationale of the project and analysis to arrive at deliverables.
1.3: Project Rationale
The rationale behind the project is to enhance the quality of service delivered by the Oak Creek Healthcare. Based on the project implementation, the company also aims to implement the cost effective and error free healthcare service using the latest technology. The company also aims to achieve better accuracy and higher productivity as well as breaking the distance between patients and physicians using tale-consultancy. Typically, Oak Creek Healthcare attempts to improve its efficiency through the Electronic Health Record (EHR) to store patient information and automated medical records.
More rational behind the project is as follows:
Use of Clinical Decision Support System (CDSS) to provide physician and nurses real time support for diagnosis of patients and treatment.
Electronic materials management (EMM) to track and manage the company inventory medical supply similar to the enterprises resources planning.
Reducing medication errors, which may lead to adverse drug events.
Assist the company to decrease dosage errors
Prescription of drugs more precisely with improved accuracy
Promoting patient safety and reducing medical errors
Implementing wireless systems to improve the communication system within the organization. (Medipac, 2004).
More rationale behind the project is as follows:
Enhancement of competitive market advantages for Oak Creek Healthcare.
A State-of-the-art operating centers at Fairfax and Miami and Fairfax.
Best and latest network support within the organization.
Database system to store company records and patient information.
High speed network connectivity across Fairfax and Miami.
VoIP at Fairfax and Miami sites for unparallel communication.
Scalable Local Area Network at Fairfax and Miami center.
Flawless WAN interfaces to connect Fairfax and Miami center
Secured internet and extranet connections for the two centers.
1.4: Systems Analysis
The major objective that makes Oak Creek Healthcare to implement the new project is that the previous network system could not satisfy the company growth. Hostlinks telecommunication provides system design for Oak Creek Healthcare in accordance with the design methodology, and the Hostlink makes use of Private IP to sustain WAN connectivity for the company. The WAN makes use of provisioned router and a Cisco 7204 to support multimedia as well as maintaining future system development. The Cisco 7204 consists of 4-slot that allows Oak Creek to support multiple protocol as well as connecting LAN across WAN interface.
The WAN design consists of 155 Mbit/s OC-3 circuit being provisioned by the Hostlinks telecommunication to enhance network connection of:
Fairfax Virginia Data Center
Miami Florida Data Center
The Ethernet Gigabit is used to establish LAN connection because of its superior scalability, manageability, its affordability...
Our semester plans gives you unlimited, unrestricted access to our entire library of resources —writing tools, guides, example essays, tutorials, class notes, and more.
Get Started Now