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+## Covert Communications Challenge Solution Overview
+
+### Initial Analysis
+Participants received a `.png` image and a `.wav` audio file. Initial examination of the `.wav` file's spectrogram revealed no secrets, but it was suggested to treat the audio as SSTV (Slow Scan Television) noise, leading to the discovery of another image.
+
+### Decoding the SSTV Image
+Using an SSTV decoding tool, the participants converted the audio file into an image that contained a ZIP archive named `secret.zip`, which was password-protected.
+
+### Extracting the ZIP Archive
+The password `mogambro` (found within the challenge context or possibly within the provided images) was used to unlock the ZIP archive, revealing two `.pkl` files: `enc_data.pkl` and `tempo.pkl`.
+
+### Deciphering the Message
+The challenge hinted at using Huffman coding and histogram analysis to decode the hidden message. The participants deduced that the `.png` image contained the encrypted message using steganography, specifically histogram shifting and Huffman coding.
+
+### Using External Resources
+A GitHub repository ([TejveerSingh13/Image-Steganography](https://github.com/TejveerSingh13/Image-Steganography)) was found that matched the challenge's requirements. This repository demonstrated how to use Huffman coding and histogram shifting for steganography.
+
+### Decoding the Final Message
+By applying the techniques from the GitHub repository to the provided image, the hidden message encoded in the image was successfully extracted.
+
+The final flag was: `bitsctf{s73g4n06r4phy_15_n07_45_345y_45_17_533m5}`.