+234 813 0686 500
+234 809 3423 853
info@grossarchive.com
+234 813 0686 500
info@grossarchive.com

DESIGN AND IMPLEMENTATION OF COMPUTER SECURITY: DATA ENCRYPTION, DECRYPTION AND KEY HASH ALGORITHMS

  • Type: Project
  • Department: Computer Science
  • Project ID: CPU0376
  • Price: ₦3,000 ($20)
  • Chapters: 5 Chapters
  • Pages: 65 Pages
  • Format: Microsoft Word
  • Views: 619

For more Info, call us on
+234 8130 686 500
or
+234 8093 423 853
CHAPTER ONE
1.0   INTRODUCTION
In the past, security was simply a matter of locking the door or storing files in a locked filing cabinet or safe. Today, paper is no longer the only medium of choice for housing information. Files are stored in computer databases as well as file cabinets. Hard drives and floppy disks hold many of our secret information. In the physical world, security is a fairly simple concept. If the locks on your house’s doors and windows are so strong that a thief cannot break in to steal your belongings, the house is secure. For further protection against intruders breaking through the locks, you might have security alarms. Similarly, if someone tries to fraudulently withdraw money from your bank account but the teller asks for identification and does not trust the thief’s story, your money is secure. When you sign a contract with another person, the signatures are the legal driving force that impels both parties to honor their word.
In the digital world, security works in a similar way. One concept is privacy, meaning that no one can break into files to read your sensitive data (such as medical records) or steal money (by, for example, obtaining credit card numbers or online brokerage accounts information). Privacy is the lock on the door. Another concept, data integrity, refers to a mechanism that tells us when something has been altered. That’s the alarm. By applying the practice of authentication, we can verify identities. That’s comparable to the ID required to withdraw money from a bank account (or conduct a transaction with an online broker). And finally, non repudiation is a legal driving force that impels people to honor their word.
As the Internet becomes a more pervasive part of daily life, the need for e-security becomes even more critical. Any organization engaged in online activity must assess and manage the e-security risks associated with this activity. Effective use of cryptographic techniques is at the core of many of these risk-management strategies. The most important security tool is cryptography.
1.1     BACKGROUND OF THE STUDY
Before the modern era, cryptography was concerned solely with message confidentiality (i.e., encryption) — conversion of messages from a comprehensible form into an incomprehensible one, and back again at the other end, rendering it unreadable by interceptors or eavesdroppers without secret knowledge (namely, the key needed for decryption of that message). In recent decades, the field has expanded beyond confidentiality concerns to include techniques for message integrity checking, sender/receiver identity authentication, digital signatures, interactive proofs, and secure computation, amongst others.
Encryption attempts to ensure secrecy in communications, such as those of spies, military leaders, and diplomats, but it have also had religious applications. Steganography (i.e., hiding even the existence of a message so as to keep it confidential) was also first developed in ancient times. An early example, from Herodotus, concealed a message – a tattoo on a slave's shaved head - under the regrown hair. More modern examples of steganography include the use of invisible ink, microdots, and digital watermarks to conceal information.
1.2     STATEMENT OF THE PROBLEM
The problem is security. The password method used in almost all commercial operating systems is probably not very strong against a sophisticated or unsophisticated attacker.
The choice of data encryption comes next in the minds of those that want reduction of unauthorized access on confidential files or data. Security provided by the computer operating systems come with a preset super user account and password. The super user may have a password to control network functionality, another to conduct or access nightly backups, create accounts, and so on. For a cracker, logging on to a system as the super user is possibly the best way to collect data or do damage. If the super user has not changed an operating system’s preprogrammed passwords, the network is vulnerable to attack. Most crackers know these passwords, and their first attempt to break into a network is simply to try them. If an attacker cannot log on as the super user, the next best thing might be to figure out the user name and password of a regular user. It is used to be standard practice in most Universities and colleges, and in some commercial companies, to assign every student or employee an account with user name and initial password – the password being the user name. Everyone was instructed to log on and change the password, but often, hackers and crackers logged on before legitimate users had a chance.
DESIGN AND IMPLEMENTATION OF COMPUTER SECURITY: DATA ENCRYPTION, DECRYPTION AND KEY HASH ALGORITHMS
For more Info, call us on
+234 8130 686 500
or
+234 8093 423 853

Share This
  • Type: Project
  • Department: Computer Science
  • Project ID: CPU0376
  • Price: ₦3,000 ($20)
  • Chapters: 5 Chapters
  • Pages: 65 Pages
  • Format: Microsoft Word
  • Views: 619
Payment Instruction
Bank payment for Nigerians, Make a payment of ₦ 3,000 to

Bank GTBANK
gtbank
Account Name Obiaks Business Venture
Account Number 0211074565

Bitcoin: Make a payment of 0.0003 to

Bitcoin(Btc)

btc wallet
Copy to clipboard Copy text

500
Leave a comment...

    Details

    Type Project
    Department Computer Science
    Project ID CPU0376
    Price ₦3,000 ($20)
    Chapters 5 Chapters
    No of Pages 65 Pages
    Format Microsoft Word

    Related Works

    CHAPTER ONE 1.0   INTRODUCTION In the past, security was simply a matter of locking the door or storing files in a locked filing cabinet or safe. Today, paper is no longer the only medium of choice for housing information. Files are stored in computer databases as well as file cabinets. Hard drives and floppy disks hold many of our secret... Continue Reading
    CHAPTER ONE 1.0        INTRODUCTION In the past, security was simply a matter of locking the door or storing files in a locked filing cabinet or safe. Today, paper is no longer the only medium of choice for housing information. Files are stored in computer databases as well as file cabinets. Hard drives and floppy disks hold many of our... Continue Reading
    CHAPTER ONE INTRODUCTION 1.O    BACKGROUND OF THE STUDY The ongoing dilemma of digital age is balancing convenience against security. Security is a system safeguards for protecting information technology against disasters, system failure, and an unauthorized access that can result in... Continue Reading
    DESIGN AND IMPLEMENTATION COMPUTERIZED DATA ENCRYPTION SYSTEM TABLE OF CONTENT Cover page Title page Approval page Dedication Acknowledgment Table of content Abstract CHAPTER ONE 1.0 Introduction 1.1 Background of the research 1.2 Statement of research problem 1.3 Objectives of the study 1.4 Significance of the study 1.5 Scope of the study 1.6... Continue Reading
    ABSTRACT Encryption/decryption is especially important in wireless communications. This is because wireless circuits are easier to tap than their hard-wired counterparts. Nevertheless, encryption/decryption is a good idea when carrying out any kind of sensitive transaction, such as a credit-card purchase online, or the discussion of a company... Continue Reading
    CHAPTER ONE 1.0. Introduction Due to increasing use of computers, security of digital information is most important issue. An Intruder is an unwanted person who reads and changes the information while transmission occurs. This activity of intruder is called intrusion attack. To avoid such attack data may be encrypted to some formats that is... Continue Reading
    ABSTRACT Having discovered the importance of computers in al ranks and aspects of life, computer system is applicable to almost all human activities and has been employed to automats most activities especially in areas were management data is of outmost importance. Due to unauthorized access to data in database, repose disclosure or modification... Continue Reading
    A CASE STUDY OF LEECON FINANCE AND INVESTMENT LTD ABSTRACT Having discovered the importance of computers in al ranks and aspects of life, computer system is applicable to almost all human activities and has been employed to automats most activities especially in areas were management... Continue Reading
    ABSTRACT Having discovered the importance of computers in al ranks and aspects of life, computer system is applicable to almost all human activities and has been employed to automats most activities especially in areas were management data is of outmost importance. Due to unauthorized access to data in database, repose disclosure or modification... Continue Reading
    Call Us
    Get this work
    whatsappWhatsApp Us