Steganography: Difference between revisions
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There are many different types of Steganography. However, they all share the same goal of hiding the presence of some particular piece of data. | There are many different types of Steganography. However, they all share the same goal of hiding the presence of some particular piece of data. | ||
===Micro Dots=== | ===Micro Dots=== | ||
Micro dots are used to shrink the physical size of a document or image. This technique was used heavily during World War I and World War II. A person wanting to send data secretly to another person would need to use something called a Micro Dot Camera to take a picture of thing they want to send. Once they have the picture the Micro Dot would then either be applied to a document and mailed or just attached to a carrier pigeon. Of course you would want to make sure the document has some information on it that someone could easily read, otherwise they might suspect you are trying to hide something from them. | Micro dots are used to shrink the physical size of a document or image. This technique was used heavily during World War I and World War II. A person wanting to send data secretly to another person would need to use something called a Micro Dot Camera to take a picture of thing they want to send. Once they have the picture the Micro Dot would then either be applied to a document and mailed or just attached to a carrier pigeon. Of course you would want to make sure the document has some information on it that someone could easily read, otherwise they might suspect you are trying to hide something from them. Sizes of the various types of Micro Dots differ due to the wide variety of applications. Currently, they are being sprayed onto laptops and car parts to try and stop reselling of the equipment. | ||
===Null Ciphers=== | ===Null Ciphers=== | ||
Revision as of 16:12, 9 December 2010
What is Steganography
Steganography is defined by Merriam-Webster as the art or practice of concealing a message, image, or file.
Different Types of Steganography
There are many different types of Steganography. However, they all share the same goal of hiding the presence of some particular piece of data.
Micro Dots
Micro dots are used to shrink the physical size of a document or image. This technique was used heavily during World War I and World War II. A person wanting to send data secretly to another person would need to use something called a Micro Dot Camera to take a picture of thing they want to send. Once they have the picture the Micro Dot would then either be applied to a document and mailed or just attached to a carrier pigeon. Of course you would want to make sure the document has some information on it that someone could easily read, otherwise they might suspect you are trying to hide something from them. Sizes of the various types of Micro Dots differ due to the wide variety of applications. Currently, they are being sprayed onto laptops and car parts to try and stop reselling of the equipment.