How Can I embed the length of my secret message in the special bytes of the cover image

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Abduellah Elbakoush
Abduellah Elbakoush 2021-11-30
回答： yanqi liu 2021-12-1
How Can I embed the length of my secret message in the special bytes of the cover image
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DGM
DGM 2021-11-30
If you need to do low-level editing of the file, you can use fopen() fseek(), fread(), etc.
In order to have a more specific answer than that, you'll need a more specific question. What is the file format? Where exactly are you trying to cram metadata? How much metadata is there?

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yanqi liu
yanqi liu 2021-12-1
yes，sir，may be use base64 to encode message，and use lsb method to embed the string into image matrix

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