Analyzing the size of the hidden information After confirming MP3Stego encoder, the size of the hidden information can be determined by calculating the changes of block length’ variance, because the variance changes obviously between the mp3 data with or without information-hiding. Let x denote the block length, and ∑x denote the summation of n blocks … Continue reading
A new method to detect MP3Stego When encoding a MP3 file, the frame length is in byte according to the bit stream format, but at the time of quantization and encoding, the Main Data is a bit stream. So when data is packed to frames, it may produce 1 to 7 padding bits to satisfy … Continue reading
MP3Stego’s Information-hiding method was the research result of the Fraunhofer-IIS Institute. The MP3 audio encoding process is shown in Figure 1. The important parts that carry out the MP3 encoding are the two loops. The inner loop is a quantization and encoding loop. If the bits produced by quantization and encoding exceed the available max_length … Continue reading
MP3Stego was developed by Cambridge University for the purpose of hiding information in MP3s. While being a purely academic exercise I am sure, its source code and binaries are available online, and have been used as the basis of a lot of steganographic programs. As MP3 is the most commonly distributed music format, using the … Continue reading
How to Hide data (Steganography) into MP3 file – mp3stego Steganography is the art and science of writing hidden messages in such a way that no one, apart from the sender and intended recipient, suspects the existence of the message, a form of security through obscurity MP3Stego will hide information in MP3 files during the … Continue reading
If you read my article on using MITM attacks on Tor you might be wondering about practical purposes other than stealing passwords and personal information. The fact is that I have no interest whatsoever in targeting specific people. I do what I do for 2 reason, I find the synergy and flow of data sexy, … Continue reading
Tor is wonderful tool to ensure your privacy on the Internet. Tor prevents somebody watching your Internet connection from learning what sites you visit, and it prevents the sites you visit from learning your physical location. Tor achieves this by bouncing through other Tor users via an anonymous and encrypted interchange. In short a series … Continue reading