Câu 135: GCIA: GIAC Certified Intrusion Analyst

Victor wants to send an encrypted message to his friend. He is using certain steganography technique to accomplish this task. He takes a cover object and changes it accordingly to hide information. This secret information is recovered only when the algorithm compares the changed cover with the original cover. Which of the following Steganography methods is Victor using to accomplish the task?

1. A. The distortion technique — đáp án hiện tại
2. B. The spread spectrum technique
3. C. The cover generation technique
4. D. The substitution technique