Mastering Encryption & Steganography: Lesson 8 - Converting Binary to Text ๐Ÿ”

Discover how to transform binary data into readable text and explore advanced techniques in encryption and steganography in this comprehensive lesson.

Mastering Encryption & Steganography: Lesson 8 - Converting Binary to Text ๐Ÿ”
Mastering Encryption & Steganography: Lesson 8 - Converting Binary to Text ๐Ÿ”

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Course in Encryption and Steganography - lesson 8 - From Binary to Text

Steganography is derived from Greek words that mean "hidden writing." It's the art and science of embedding secret messages or data into a file, such as an image, in a way that is not easily detectable. The hidden data can include text, files, or even other images.

Least Significant Bit (LSB) Substitution
This is one of the most common methods used in image steganography. In an image, each pixel is made up of three color components: Red, Green, and Blue (RGB). Each color component is typically stored in 8 bits, with values ranging from 0 to 255.

In LSB substitution, secret data is hidden in the least significant bit of the pixel values. Since this bit represents the smallest part of the value, altering it minimally changes the pixel's color. To the human eye, these changes are almost invisible.

ุฏูˆุฑุฉ ููŠ ุงู„ุชุดููŠุฑ ูˆุงู„ุชุฎููŠ - ุงู„ุฏุฑุณ ุงู„ุซุงู…ู† - ู…ู† ุงู„ุชุฑู…ูŠุฒ ุงู„ุซู†ุงุฆูŠ ุฅู„ู‰ ุงู„ู†ุตูˆุต ุงู„ุทุจูŠุนูŠุฉ

ูŠูุดุชู‚ ู…ุตุทู„ุญ "ุฅุฎูุงุก ุงู„ู…ุนู„ูˆู…ุงุช" ู…ู† ูƒู„ู…ุชูŠู† ูŠูˆู†ุงู†ูŠุชูŠู† ุชุนู†ูŠุงู† "ุงู„ูƒุชุงุจุฉ ุงู„ุฎููŠุฉ". ูˆู‡ูˆ ูู† ูˆุนู„ู… ุชุถู…ูŠู† ุงู„ุฑุณุงุฆู„ ุฃูˆ ุงู„ุจูŠุงู†ุงุช ุงู„ุณุฑูŠุฉ ููŠ ู…ู„ูุŒ ู…ุซู„ ุตูˆุฑุฉุŒ ุจุทุฑูŠู‚ุฉ ูŠุตุนุจ ุงูƒุชุดุงูู‡ุง. ูŠู…ูƒู† ุฃู† ุชุดู…ู„ ุงู„ุจูŠุงู†ุงุช ุงู„ู…ุฎููŠุฉ ู†ุตูˆุตู‹ุง ูˆู…ู„ูุงุช ุฃูˆ ุญุชู‰ ุตูˆุฑู‹ุง ุฃุฎุฑู‰.

ุงุณุชุจุฏุงู„ ุงู„ุจุช ุงู„ุฃู‚ู„ ุฃู‡ู…ูŠุฉ (LSB)

ุชูุนุฏ ู‡ุฐู‡ ุงู„ุทุฑูŠู‚ุฉ ู…ู† ุฃูƒุซุฑ ุงู„ุทุฑู‚ ุดูŠูˆุนู‹ุง ููŠ ุฅุฎูุงุก ุงู„ู…ุนู„ูˆู…ุงุช ููŠ ุงู„ุตูˆุฑ. ููŠ ุงู„ุตูˆุฑุฉุŒ ูŠุชูƒูˆู† ูƒู„ ุจูƒุณู„ ู…ู† ุซู„ุงุซุฉ ู…ูƒูˆู†ุงุช ู„ูˆู†ูŠุฉ: ุงู„ุฃุญู…ุฑ ูˆุงู„ุฃุฎุถุฑ ูˆุงู„ุฃุฒุฑู‚ (RGB). ูŠูุฎุฒูŽู‘ู† ูƒู„ ู…ูƒูˆู† ู„ูˆู†ูŠ ุนุงุฏุฉู‹ ููŠ 8 ุจุชุงุชุŒ ุชุชุฑุงูˆุญ ู‚ูŠู…ู‡ุง ุจูŠู† 0 ูˆ255.

ููŠ ุงุณุชุจุฏุงู„ ุงู„ุจุช ุงู„ุฃู‚ู„ ุฃู‡ู…ูŠุฉุŒ ุชูุฎุจุฃ ุงู„ุจูŠุงู†ุงุช ุงู„ุณุฑูŠุฉ ููŠ ุงู„ุจุช ุงู„ุฃู‚ู„ ุฃู‡ู…ูŠุฉ ู…ู† ู‚ูŠู… ุงู„ุจูƒุณู„. ูˆู„ุฃู† ู‡ุฐุง ุงู„ุจุช ูŠูู…ุซู„ ุฃุตุบุฑ ุฌุฒุก ู…ู† ุงู„ู‚ูŠู…ุฉุŒ ูุฅู† ุชุบูŠูŠุฑู‡ ูŠูุบูŠู‘ุฑ ู„ูˆู† ุงู„ุจูƒุณู„ ุจุดูƒู„ ุทููŠู. ุชูƒุงุฏ ู‡ุฐู‡ ุงู„ุชุบูŠูŠุฑุงุช ุชูƒูˆู† ุบูŠุฑ ู…ุฑุฆูŠุฉ ู„ู„ุนูŠู† ุงู„ุจุดุฑูŠุฉ.

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201

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6:47

Published

May 12, 2025

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