Steganogram

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A steganogram (short stegogram ) denotes a medium which now contains a message through the use of steganography .

Investigating whether a potential carrier medium is a steganogram is rarely easy. There are already methods in steganography which make recognizability more difficult to the extent that it is not possible to prove without considerable effort that steganography has been applied to a medium.

The steganogram can be designed in ciphers or codes in a text itself, in its decorations, in parts, illustrations or individual words; The steganogram is woven in using various methods to mask the existence of meaning or message (e.g. simply using invisible ink , such as lemon juice, which only becomes visible when heated). Normal text can also be specially marked; this used to be z. B. by pinpricks, microdots or superscript letters common. As a rule, a steganogram can only be deciphered by the initiated, as the recipient of the secret message should at least know the beginning and end of the text passage in question, as well as the type of obfuscation, which can also consist of combinations of the methods described.