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    International Journal of Innovative Science and Research Technology
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    Cyber attacks are increasing day by day . So network security (to prevent the data from getting theft) is a must. There are various ways to prevent the data from getting stolen and Cryptography is one of them.Cryptography is a way of storing and transmitting the data in a particular form so that only those for whom it is intended can read it and process it.In this paper we will learn about Cryptography, its goals , how it helps in preventing cyber attacks

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    Cyber attacks are increasing day by day . So network security (to prevent the data from getting theft) is a must. There are various ways to prevent the data from getting stolen and Cryptography is one of them.Cryptography is a way of storing and transmitting the data in a particular form so that only those for whom it is intended can read it and process it.In this paper we will learn about Cryptography, its goals , how it helps in preventing cyber attacks

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    904 views2 pages

    Research Paper On Cyber Security & Cryptography

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    International Journal of Innovative Science and Research Technology
    Cyber attacks are increasing day by day . So network security (to prevent the data from getting theft) is a must. There are various ways to prevent the data from getting stolen and Cryptography is one of them.Cryptography is a way of storing and transmitting the data in a particular form so that only those for whom it is intended can read it and process it.In this paper we will learn about Cryptography, its goals , how it helps in preventing cyber attacks

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    Volume 4, Issue 3, March – 2019 International Journal of Innovative Science and Research Technology

    ISSN No:-2456-2165

    Research Paper on Cyber Security & Cryptography


    Divya Chanana
    Assistant Professor (SGTBIM&IT)
    Department of Mathematics
    GGSIPU

    Abstract:- Cyber attacks are increasing day by day . So II. COMPONENTS OF CRYPTOGRAPHIC SYSTEM
    network security (to prevent the data from getting
    theft) is a must. There are various ways to prevent the Components of Cryptographic system are as follows:
    data from getting stolen and Cryptography is one of
    them.Cryptography is a way of storing and A. Plain Text: The confidential data that should be
    transmitting the data in a particular form so that only secured while transmission is referred as plain text.
    those for whom it is intended can read it and process B. Cipher Text: The transformed plain texts that cannot be
    it.In this paper we will learn about Cryptography, its understand without applying encryption algorithm and
    goals , how it helps in preventing cyber attacks . encryption key over the plain text.
    C. Encryption Algorithm: It is a mathematical process
    I. INTRODUCTION which is used to convert plain text into cipher text using
    some encryption key.
    Cyber Security refers to the techniques of protecting D. Decryption Algorithm: This is the reverse process of
    computers, networks, programs and data from encryption algorithm. To produce the original text we
    unauthorized access or attacks that are aimed for use cipher text and encryption algorithm.
    exploitation. Cryptography is about Mathematical E. Encryption key: The value which is applied within
    functions and can be applied to technical solutions for encryption algorithm to get the cipher text from the
    increasing cyber security. Transforming the confidential plain text is called the encryption key. To make the
    data in a coding form and then transmitting it so that only cryptographic system successful safeguarding of
    authorized users can work on it is known as Cryptography. encryption key is important. The value of encryption
    Cryptography is originated from Greek word “crypto” key is known to both sender and receiver or only to the
    means hidden and “graphy” means writing, so sender
    cryptography means hidden or secret writing. F. Decryption key: To get the plain text back from the
    ciphertext decryption key is applied within the
    decryption algorithm. The value of decryption key is
    known only to the receiver.

    Fig 1: Cryptographic System

    IJISRT19MA85 www.ijisrt.com 14
    Volume 4, Issue 3, March – 2019 International Journal of Innovative Science and Research Technology
    ISSN No:-2456-2165
    III. HOW CRYPTOGRAPHY WORKS A. Confidentiality: Cryptography ensures confidentiality
    through hiding a message and protects confidential data
    Cryptography requires two steps: encryption and from unauthorized access.
    decryption. The encryption process uses a cipher in order B. Access control: Only authorized users can access to
    to encrypt plain text and turn it into cipher text. On the protect confidential data etc. Access would be possible
    other hand, Decryption uses the same cipher to convert the for those individual that had access to the correct
    cipher text back into plain text. cryptographic keys.
    C. Authentication: Before the interaction with the
    Example, if you want to encrypt a simple message, cryptographic system the process of verifying the
    “Hello”. sender and the receiver is termed as authentication.
    So our plain text is “Hello”. D. Data Integrity: It ensures that the received message has
    not been changed from its original form in any way.
    We can now apply one of the simplest forms of The data may get modified by an unauthorized user
    encryption Known as shift cipher. With this cipher, we intentionally or accidentally. Integrity makes sure that
    simply shift each letter with a shift of suppose three letters the data is intact or not since it was last created,
    transmitted or stored by an authorized user.
    E. Non-Repudiation: It is a mechanism used to prove that
    sender really sent this message and the message was
    received by that specific party, so that the recipient
    cannot claim of not receiving the message.

    V. TECHNIQUES OF CYBER SECURITY

    The following technologies can be used to reduce


    network attacks:
    A. Authentication: All the received data must be
    authenticated if it is sent by the trusted sender or not
    B. Antivirus: On a regular period of time we should install
    and update antivirus software in our system.
    C. Firewalls: The inward and outward traffic of any
    Fig 2 system can be tracked using this software. This
    software also helps in informing the user about any
    Meaning that: unpermitted access and usage.
    A is shifted to D D. Access Controls: Each user must have their particular
    B is shifted to E username and password to avoid unauthorized access.
    C is shifted to F E. Cryptography: The technique of encoding the plain text
    D is shifted to G into cipher text to avoid the confidential data from
    E is shifted to H getting stolen before transmitting it over channel is
    F is shifted to I cryptography.
    G is shifted to J
    H is shifted to K VI. CONCLUSION
    And so on.
    In this paper we have seen how cryptography make
    By applying this cipher, our plain text “Hello” gets sure that the original data is not manipulated during any
    converted into cipher text “Khoor” transmission. We also discussed about its goals. Network
    security can be prevented using various techniques like
    Now, to the untrained eye “Khoor” means nothing Cryptography, Firewalls, access controls and
    like “hello”. However one with the knowledge of Shift steganography etc. So to safeguard our confidential
    cipher could easily decrypt this message. information we can say Cryptography is a must.

    IV. GOALS OF CRYPTOGRAPHIC SYSTEM REFERENCES

    Many attacks are possible over any ongoing [1]. Anu and Divya Shree, “ A Review on Cryptography,
    communication within a network like Security threats, Attacks and Cyber Security” , International Journal of
    Unauthorized access, Data capturing, Virus infection etc. Advanced Research in Computer Science.
    To prevent attacks( Security threats , unauthorized [2]. Sarita Kumari, “A Research Paper on Cryptography
    access,Virus infection )every encryption system must have Encryption and Compression Techniques,
    some features that helps in secure transmission of any data. International Journal of Engineering and Computer
    The main such goals are listed as follows: Science.
    [3]. https://thebestvpn.com

    IJISRT19MA85 www.ijisrt.com 15

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