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Source Code Embeds/Extracts encrypted string in .PNG - PowerShell

dEEpEst

dEEpEst

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Embed a string (AES-encrypted and Base64-encoded) into the last IDAT chunk of a PNG and later extract and decrypt it to recover the original text.

Embeds encrypted string in .PNG file​

Syntax
Code: 
# A secret text to embed
$secret = "This is top secret data..."
# Call the function
Embed-EncryptedStringInPNG -CoverPNG "C:\temp\cover.png" -StringData $secret -Passphrase "S0meStr0ngPass!" -OutputPNG "C:\temp\steg.png"

Script


Extracts encrypted string from .PNG file​


Syntax
Code: 
$decryptedText = Extract-EncryptedStringFromPNG -StegoPNG "steg.png" -Passphrase "S0meStr0ngPass!"

Script
 
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