Sign Up

Have an account? Sign In Now

Sign In

Forgot Password?

Don't have account, Sign Up Here

Forgot Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

Have an account? Sign In Now

You must login to ask a question.

Forgot Password?

Need An Account, Sign Up Here

Please briefly explain why you feel this question should be reported.

Please briefly explain why you feel this answer should be reported.

Please briefly explain why you feel this user should be reported.

Sign InSign Up

Abstract Classes

Abstract Classes Logo Abstract Classes Logo
Search
Ask A Question

Mobile menu

Close
Ask a Question
  • Home
  • Polls
  • Add group
  • Buy Points
  • Questions
  • Pending questions
  • Notifications
    • sonali10 has voted up your question.September 24, 2024 at 2:47 pm
    • Abstract Classes has answered your question.September 20, 2024 at 2:13 pm
    • The administrator approved your question.September 20, 2024 at 2:11 pm
    • banu has voted up your question.August 20, 2024 at 3:29 pm
    • banu has voted down your question.August 20, 2024 at 3:29 pm
    • Show all notifications.
  • Messages
  • User Questions
  • Asked Questions
  • Answers
  • Best Answers
Home/ Questions/Q 34492
Next
In Process
Himanshu Kulshreshtha
Himanshu KulshreshthaElite Author
Asked: March 23, 20242024-03-23T14:06:30+05:30 2024-03-23T14:06:30+05:30In: Cyber Law

What do you mean by Encryption? Describe RSA algorithm with examples.

What do you mean by Encryption? Describe RSA algorithm with examples.

MIR-011
  • 0
  • 11
  • 63
  • 0
  • 0
Share
  • Facebook

    1 Answer

    • Voted
    • Oldest
    • Recent
    1. Himanshu Kulshreshtha Elite Author
      2024-03-23T14:07:23+05:30Added an answer on March 23, 2024 at 2:07 pm

      Encryption is a process of converting plaintext or readable data into ciphertext or unintelligible form using cryptographic algorithms and keys. The purpose of encryption is to protect sensitive information, such as personal data, financial transactions, and communications, from unauthorized access, interception, and tampering by unauthorized parties. Encryption ensures confidentiality, integrity, and privacy of data by rendering it unreadable to anyone without the corresponding decryption key.

      One of the most widely used encryption algorithms is the RSA algorithm, named after its inventors, Ron Rivest, Adi Shamir, and Leonard Adleman. RSA is an asymmetric encryption algorithm, meaning it uses two different keys for encryption and decryption: a public key and a private key.

      Here's how the RSA algorithm works:

      1. Key Generation:

        • Choose two large prime numbers, p and q.
        • Calculate their product, n = p * q.
        • Calculate Euler's totient function, φ(n) = (p-1) * (q-1).
        • Choose a public exponent, e, such that 1 < e < φ(n) and gcd(e, φ(n)) = 1 (e and φ(n) are coprime).
        • Calculate the private exponent, d, such that (d * e) ≡ 1 (mod φ(n)).
        • The public key is (n, e), and the private key is (n, d).
      2. Encryption:

        • Sender Alice encrypts plaintext message M using Bob's public key (n, e) to produce ciphertext C.
        • Ciphertext C is computed as: C = M^e mod n.
      3. Decryption:

        • Receiver Bob decrypts the ciphertext C using his private key (n, d) to obtain the original plaintext message M.
        • Plaintext message M is computed as: M = C^d mod n.

      Example of RSA Algorithm:

      Let's demonstrate the RSA algorithm with smaller numbers for illustration purposes.

      1. Key Generation:

        • Choose two prime numbers: p = 11, q = 17.
        • Compute n = p q = 11 17 = 187.
        • Compute φ(n) = (p-1) (q-1) = (11-1) (17-1) = 160.
        • Choose public exponent e = 7 (e is relatively prime to φ(n)).
        • Compute private exponent d such that (d * e) ≡ 1 (mod 160). For e = 7, d = 23.
        • Public key (n, e) = (187, 7), Private key (n, d) = (187, 23).
      2. Encryption:

        • Sender Alice wants to send message M = 88 to Bob.
        • Encrypt M using Bob's public key: C = 88^7 mod 187 = 11.
      3. Decryption:

        • Receiver Bob receives ciphertext C = 11.
        • Decrypt C using Bob's private key: M = 11^23 mod 187 = 88.

      Thus, Bob successfully decrypts the ciphertext to obtain the original plaintext message, which is 88.

      In summary, the RSA algorithm provides a secure method for encryption and decryption, leveraging the mathematical properties of prime numbers and modular arithmetic to protect sensitive data and ensure secure communication over insecure channels.

      • 0
      • Share
        Share
        • Share onFacebook
        • Share on Twitter
        • Share on LinkedIn
        • Share on WhatsApp

    Related Questions

    • What is Phishing? Why it is mostly used in banking sector?
    • Analyse the concept of privacy as a fundamental Human Right.
    • Discuss the various measures to protect Minors in India from Internet crimes.
    • Explain in brief Data Protection laws in US, UK and India.
    • What are the major security challenges in Cyberspace? Discuss
    • Explain Network Interference.
    • Explain Business Process Outsourcing.
    • Explain Internet Crimes against minors.

    Sidebar

    Ask A Question

    Stats

    • Questions 21k
    • Answers 21k
    • Popular
    • Tags
    • Pushkar Kumar

      Bachelor of Science (Honours) Anthropology (BSCANH) | IGNOU

      • 0 Comments
    • Pushkar Kumar

      Bachelor of Arts (BAM) | IGNOU

      • 0 Comments
    • Pushkar Kumar

      Bachelor of Science (BSCM) | IGNOU

      • 0 Comments
    • Pushkar Kumar

      Bachelor of Arts(Economics) (BAFEC) | IGNOU

      • 0 Comments
    • Pushkar Kumar

      Bachelor of Arts(English) (BAFEG) | IGNOU

      • 0 Comments
    Academic Writing Academic Writing Help BEGS-183 BEGS-183 Solved Assignment Critical Reading Critical Reading Techniques Family & Lineage Generational Conflict Historical Fiction Hybridity & Culture IGNOU Solved Assignments IGNOU Study Guides IGNOU Writing and Study Skills Loss & Displacement Magical Realism Narrative Experimentation Nationalism & Memory Partition Trauma Postcolonial Identity Research Methods Research Skills Study Skills Writing Skills

    Users

    Arindom Roy

    Arindom Roy

    • 102 Questions
    • 104 Answers
    Manish Kumar

    Manish Kumar

    • 49 Questions
    • 48 Answers
    Pushkar Kumar

    Pushkar Kumar

    • 57 Questions
    • 56 Answers
    Gaurav

    Gaurav

    • 535 Questions
    • 534 Answers
    Bhulu Aich

    Bhulu Aich

    • 2 Questions
    • 0 Answers
    Exclusive Author
    Ramakant Sharma

    Ramakant Sharma

    • 8k Questions
    • 7k Answers
    Ink Innovator
    Himanshu Kulshreshtha

    Himanshu Kulshreshtha

    • 10k Questions
    • 11k Answers
    Elite Author
    N.K. Sharma

    N.K. Sharma

    • 930 Questions
    • 2 Answers

    Explore

    • Home
    • Polls
    • Add group
    • Buy Points
    • Questions
    • Pending questions
    • Notifications
      • sonali10 has voted up your question.September 24, 2024 at 2:47 pm
      • Abstract Classes has answered your question.September 20, 2024 at 2:13 pm
      • The administrator approved your question.September 20, 2024 at 2:11 pm
      • banu has voted up your question.August 20, 2024 at 3:29 pm
      • banu has voted down your question.August 20, 2024 at 3:29 pm
      • Show all notifications.
    • Messages
    • User Questions
    • Asked Questions
    • Answers
    • Best Answers

    Footer

    Abstract Classes

    Abstract Classes

    Abstract Classes is a dynamic educational platform designed to foster a community of inquiry and learning. As a dedicated social questions & answers engine, we aim to establish a thriving network where students can connect with experts and peers to exchange knowledge, solve problems, and enhance their understanding on a wide range of subjects.

    About Us

    • Meet Our Team
    • Contact Us
    • About Us

    Legal Terms

    • Privacy Policy
    • Community Guidelines
    • Terms of Service
    • FAQ (Frequently Asked Questions)

    © Abstract Classes. All rights reserved.