Mastering Encryption & Steganography: Lesson 8 - Converting Binary to Text ๐
Discover how to transform binary data into readable text and explore advanced techniques in encryption and steganography in this comprehensive lesson.

Abdallah Alfaham โข ุนุจุฏ ุงููู ุงููุญุงู
201 views โข May 12, 2025

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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.
ุฏูุฑุฉ ูู ุงูุชุดููุฑ ูุงูุชุฎูู - ุงูุฏุฑุณ ุงูุซุงู ู - ู ู ุงูุชุฑู ูุฒ ุงูุซูุงุฆู ุฅูู ุงููุตูุต ุงูุทุจูุนูุฉ
ููุดุชู ู ุตุทูุญ "ุฅุฎูุงุก ุงูู ุนููู ุงุช" ู ู ููู ุชูู ูููุงููุชูู ุชุนููุงู "ุงููุชุงุจุฉ ุงูุฎููุฉ". ููู ูู ูุนูู ุชุถู ูู ุงูุฑุณุงุฆู ุฃู ุงูุจูุงูุงุช ุงูุณุฑูุฉ ูู ู ููุ ู ุซู ุตูุฑุฉุ ุจุทุฑููุฉ ูุตุนุจ ุงูุชุดุงููุง. ูู ูู ุฃู ุชุดู ู ุงูุจูุงูุงุช ุงูู ุฎููุฉ ูุตูุตูุง ูู ููุงุช ุฃู ุญุชู ุตูุฑูุง ุฃุฎุฑู.
ุงุณุชุจุฏุงู ุงูุจุช ุงูุฃูู ุฃูู ูุฉ (LSB)
ุชูุนุฏ ูุฐู ุงูุทุฑููุฉ ู ู ุฃูุซุฑ ุงูุทุฑู ุดููุนูุง ูู ุฅุฎูุงุก ุงูู ุนููู ุงุช ูู ุงูุตูุฑ. ูู ุงูุตูุฑุฉุ ูุชููู ูู ุจูุณู ู ู ุซูุงุซุฉ ู ูููุงุช ููููุฉ: ุงูุฃุญู ุฑ ูุงูุฃุฎุถุฑ ูุงูุฃุฒุฑู (RGB). ููุฎุฒููู ูู ู ููู ูููู ุนุงุฏุฉู ูู 8 ุจุชุงุชุ ุชุชุฑุงูุญ ููู ูุง ุจูู 0 ู255.
ูู ุงุณุชุจุฏุงู ุงูุจุช ุงูุฃูู ุฃูู ูุฉุ ุชูุฎุจุฃ ุงูุจูุงูุงุช ุงูุณุฑูุฉ ูู ุงูุจุช ุงูุฃูู ุฃูู ูุฉ ู ู ููู ุงูุจูุณู. ููุฃู ูุฐุง ุงูุจุช ููู ุซู ุฃุตุบุฑ ุฌุฒุก ู ู ุงูููู ุฉุ ูุฅู ุชุบููุฑู ููุบููุฑ ููู ุงูุจูุณู ุจุดูู ุทููู. ุชูุงุฏ ูุฐู ุงูุชุบููุฑุงุช ุชููู ุบูุฑ ู ุฑุฆูุฉ ููุนูู ุงูุจุดุฑูุฉ.
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.
ุฏูุฑุฉ ูู ุงูุชุดููุฑ ูุงูุชุฎูู - ุงูุฏุฑุณ ุงูุซุงู ู - ู ู ุงูุชุฑู ูุฒ ุงูุซูุงุฆู ุฅูู ุงููุตูุต ุงูุทุจูุนูุฉ
ููุดุชู ู ุตุทูุญ "ุฅุฎูุงุก ุงูู ุนููู ุงุช" ู ู ููู ุชูู ูููุงููุชูู ุชุนููุงู "ุงููุชุงุจุฉ ุงูุฎููุฉ". ููู ูู ูุนูู ุชุถู ูู ุงูุฑุณุงุฆู ุฃู ุงูุจูุงูุงุช ุงูุณุฑูุฉ ูู ู ููุ ู ุซู ุตูุฑุฉุ ุจุทุฑููุฉ ูุตุนุจ ุงูุชุดุงููุง. ูู ูู ุฃู ุชุดู ู ุงูุจูุงูุงุช ุงูู ุฎููุฉ ูุตูุตูุง ูู ููุงุช ุฃู ุญุชู ุตูุฑูุง ุฃุฎุฑู.
ุงุณุชุจุฏุงู ุงูุจุช ุงูุฃูู ุฃูู ูุฉ (LSB)
ุชูุนุฏ ูุฐู ุงูุทุฑููุฉ ู ู ุฃูุซุฑ ุงูุทุฑู ุดููุนูุง ูู ุฅุฎูุงุก ุงูู ุนููู ุงุช ูู ุงูุตูุฑ. ูู ุงูุตูุฑุฉุ ูุชููู ูู ุจูุณู ู ู ุซูุงุซุฉ ู ูููุงุช ููููุฉ: ุงูุฃุญู ุฑ ูุงูุฃุฎุถุฑ ูุงูุฃุฒุฑู (RGB). ููุฎุฒููู ูู ู ููู ูููู ุนุงุฏุฉู ูู 8 ุจุชุงุชุ ุชุชุฑุงูุญ ููู ูุง ุจูู 0 ู255.
ูู ุงุณุชุจุฏุงู ุงูุจุช ุงูุฃูู ุฃูู ูุฉุ ุชูุฎุจุฃ ุงูุจูุงูุงุช ุงูุณุฑูุฉ ูู ุงูุจุช ุงูุฃูู ุฃูู ูุฉ ู ู ููู ุงูุจูุณู. ููุฃู ูุฐุง ุงูุจุช ููู ุซู ุฃุตุบุฑ ุฌุฒุก ู ู ุงูููู ุฉุ ูุฅู ุชุบููุฑู ููุบููุฑ ููู ุงูุจูุณู ุจุดูู ุทููู. ุชูุงุฏ ูุฐู ุงูุชุบููุฑุงุช ุชููู ุบูุฑ ู ุฑุฆูุฉ ููุนูู ุงูุจุดุฑูุฉ.
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May 12, 2025
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