Which of the following statements is/are correct?

A) Cryptography is for translation; Steganography is for dictation

B) Cryptography is for masking message content; Steganography is for dictation

C) Cryptography is for masking message content; Steganography is for hiding the existence of the message itself 

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  1. A and B
  2. B
  3. B and C
  4. C

Answer (Detailed Solution Below)

Option 4 : C
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Detailed Solution

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The correct answer is Cryptography is for masking message content; Steganography is for hiding the existence of the message itself.

Key Points

  • Cryptography involves techniques used to secure communication in the presence of third parties by transforming the message into an unreadable format, known as encryption.
  • The primary goal of cryptography is to ensure confidentiality, integrity, authenticity, and non-repudiation of the message.
  • Steganography is the practice of concealing a message, image, or file within another message, image, or file so that the presence of the hidden message is not detected.
  • The main purpose of steganography is to hide the existence of the communication, rather than the content itself.
  • Both cryptography and steganography are used for information security, but they serve different purposes.

 Additional Information

  • Option A: Cryptography is for translation; Steganography is for dictation
    • This statement is incorrect. Cryptography is not about translation but about securing message content through techniques like encryption.
    • Steganography is not about dictation but about concealing the existence of messages.
  • Option B: Cryptography is for masking message content; Steganography is for dictation
    • This statement is partially correct but incorrect regarding steganography. While cryptography does mask the message content, steganography is not related to dictation but to hiding the existence of the message.
  • Option C: Cryptography is for masking message content; Steganography is for hiding the existence of the message itself
    • This statement is correct.
    • Cryptography focuses on transforming the message so that it is unreadable without the proper decryption key.
    • Steganography aims to make the message itself undetectable by embedding it within another medium.
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