Analyses of Steganography Methods
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Samarkand branch of TUIT
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The current state and development of information systems and technologies requires information security, therefore, in this paper, the methods of steganography are considered and a new classification is given. Steganography is a method that is based on hiding or embedding additional information in digital objects, while causing some distortion of these objects. In this case, an image, audio, video, network packets and other types of data formats can be used as objects or a container. There have been a lot of posts lately in the field of hiding information in a text container. To implement the secret, steganographic techniques rely on redundant information about the covering medium used or properties that the human perceptual system cannot discern. Since text documents are widely used in organizations, using a text document as the storage medium may be the preferred choice in such an environment with little redundant information. Therefore, the choice of using a text document as an information carrier is the most difficult, since it contains less redundant information. In this article, we present the result of the analysis of steganography methods based on text documents. At the same time, comments are given to some methods for understanding the approach of the authors. The result of this work is presented in the form of classifications of existing methods into three classes. In addition, it can be noted that the given methods are accompanied by the generally accepted names of these methods. Thus, the proposed classification scheme is practical and effective for understanding message hiding methods.
Steganografiya usullari bevosita axborotlarni yshirishga yoki raqamli obyektlarga qo‘shimcha ma’lumotlarni kiritishga qaratilgan. Ushbu jarayonda obyektda qisman o‘zgarishlar yuzaga keladi. Bu erda obyekt yoki konteyner sifatida audio, video, tarmoq paketlari kabi raqamli formatlar qo‘llaniladi. Oxirgi yillarda matnli konteynerlarda axborotlarni yashirishga bag‘ishlangan maqolalar ko‘p uchramoqda. Steganografiya usullari bevosita konteynerda mavjud xossalarni o‘zgartirish orqali maxfiy ma’lumotlarni yashirishga harakat qiladi va sodir bo‘ladigan o‘zgarishlarni inson kuzata olmaydi. Tashkilotlarda matnli hujjatlarning keng qo‘llanilishi bevosita ularni konteyner sifatida qabul qilishga asos bo‘lib xizmat qiladi, ammo ularda katta hajmdagi ma’lumotlarni joylashtirish qiyin. Shu bois, matnli hujjatlarda ma’lumotlarni yashirish algoritmlarini ishlab chiqish murakkab masala. Ushbu maqolada matnli steganografiya usullarining tahliliy natijalari keltirilgan. Mualliflarning yondashuvini tushuntirish maqsadida ba’zi-bir usullarning mazmuni izohlab berilgan. Olingan natijalar mavjud usullarning 3 ta sinfga ajratilgan tasnifi sifatida keltirilgan. Shu bilan birga usullarning qabul qilingan nomlanishi saqlab qolingan. Shunday qilib, taklif etilgan xabarlarni yshirish usullarining tasniflash sxemasi amaliy jihatdan sodda va tushunish uchun samarali hisoblanadi.
Steganografiya usullari bevosita axborotlarni yshirishga yoki raqamli obyektlarga qo‘shimcha ma’lumotlarni kiritishga qaratilgan. Ushbu jarayonda obyektda qisman o‘zgarishlar yuzaga keladi. Bu erda obyekt yoki konteyner sifatida audio, video, tarmoq paketlari kabi raqamli formatlar qo‘llaniladi. Oxirgi yillarda matnli konteynerlarda axborotlarni yashirishga bag‘ishlangan maqolalar ko‘p uchramoqda. Steganografiya usullari bevosita konteynerda mavjud xossalarni o‘zgartirish orqali maxfiy ma’lumotlarni yashirishga harakat qiladi va sodir bo‘ladigan o‘zgarishlarni inson kuzata olmaydi. Tashkilotlarda matnli hujjatlarning keng qo‘llanilishi bevosita ularni konteyner sifatida qabul qilishga asos bo‘lib xizmat qiladi, ammo ularda katta hajmdagi ma’lumotlarni joylashtirish qiyin. Shu bois, matnli hujjatlarda ma’lumotlarni yashirish algoritmlarini ishlab chiqish murakkab masala. Ushbu maqolada matnli steganografiya usullarining tahliliy natijalari keltirilgan. Mualliflarning yondashuvini tushuntirish maqsadida ba’zi-bir usullarning mazmuni izohlab berilgan. Olingan natijalar mavjud usullarning 3 ta sinfga ajratilgan tasnifi sifatida keltirilgan. Shu bilan birga usullarning qabul qilingan nomlanishi saqlab qolingan. Shunday qilib, taklif etilgan xabarlarni yshirish usullarining tasniflash sxemasi amaliy jihatdan sodda va tushunish uchun samarali hisoblanadi.
Keywords
information hiding, steganography, text steganography, classification, ma’lumotlarni yashirish, steganografiya, matnli steganografiya, tasnif