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Answer the following questions. What is the purpose of steganography?
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What is the purpose of steganography?
How is steganography related to cryptography?
What was the early use of steganography?
What is carrier?
How can you define steganography medium?
What is the application of steganography nowadays?
7. Mark the following statements “true” or “false”. Correct the false statements.
1. Steganography is the art of hiding the existence of secret communication.
2. Steganography got its name several millennia back.
3. Steganography is related to cryptography.
4. Carrier is a special medium where the secret message is put.
5. Jargon codes use special phrases with the meaning that is not understood by malicious users.
6. Technical steganography changes the way the carrier text looks by adding extra spaces or using different flourishes.
7. Digital watermarking is one of the modern steganography techniques.
8. Cue codes are a subclass of grille ciphers.
9. A visual semagram modifies the appearance of the carrier text.
10. Null cipher is a kind of linguistic steganography.
Vocabulary tasks
Remember word combinations containing the following terms and translate them.
Steganography, cipher, code, medium, message, communication.
Make the word combinations
| 1. digital | a) communication |
| 2. size-reduction | b) code |
| 3. covert | c) application |
| 4. open | d) fraud |
| 5. nefarious | e) text |
| 6. nonobvious | f) watermarking |
| 7. cue | g) a message |
| 8. convey | h) method |
| 9. carrier | i) code |
| 10. financial | j) way |
Complete the text using the terms and word combinations given below.
Apparent message, covered, illegal, a transport layer, the visible lines, suspicion.
The word " Steganography " is of Greek origin and means " … or hidden writing". Its ancient origins can be traced back to 440 BC. Generally, a steganographic message will appear to be something else: a picture, an article, a shopping list, or some other message. This … is the covertext. For instance, a message may be hidden by using invisible ink between … of innocuous documents.
The advantage of steganography over cryptography alone is that messages do not attract attention to themselves, to messengers, or to recipients. An unhidden coded message, no matter how unbreakable it is, will arouse … and may in itself be incriminating, as in countries where encryption is ….
Steganography used in electronic communication includes steganographic coding inside of …, such as an MP3 file, or a protocol, such as UDP.
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