79ab165b95
New files: - LICENSE (MIT) - Required legal file - CHANGELOG.md - Version history following Keep a Changelog - CONTRIBUTING.md - Contributor guidelines - CODE_OF_CONDUCT.md - Community standards - .github/ISSUE_TEMPLATE/ - Bug report and feature request forms - .github/PULL_REQUEST_TEMPLATE.md - PR checklist - src/stegasoo/py.typed - PEP 561 type hint marker - examples/ - Usage examples (basic, file embedding, channel keys) Updated: - README.md - Added CI status badges 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
73 lines
2.2 KiB
Python
73 lines
2.2 KiB
Python
#!/usr/bin/env python3
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"""
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Channel Keys Example
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Channel keys allow you to create private communication channels.
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Only people with the same channel key can decode messages.
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"""
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from pathlib import Path
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import stegasoo
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from stegasoo.channel import generate_channel_key, get_channel_fingerprint
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def main():
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# Generate a channel key for your group
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channel_key = generate_channel_key()
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fingerprint = get_channel_fingerprint(channel_key)
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print("=== Channel Key Generated ===")
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print(f"Key: {channel_key}")
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print(f"Fingerprint: {fingerprint}")
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print("\nShare this key securely with your group members!")
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print("-" * 40)
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# Load images
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reference_photo = Path("my_secret_photo.png").read_bytes()
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carrier_image = Path("carrier.png").read_bytes()
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# Encode with channel key
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print("\nEncoding message with channel key...")
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result = stegasoo.encode(
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message="Secret group message!",
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reference_photo=reference_photo,
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carrier_image=carrier_image,
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passphrase="correct horse battery staple",
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pin="123456",
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channel_key=channel_key, # Add the channel key
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)
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stego_data = result.stego_image
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print(f"Encoded successfully!")
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# Decode with correct channel key
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print("\nDecoding with correct channel key...")
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decoded = stegasoo.decode(
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stego_image=stego_data,
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reference_photo=reference_photo,
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passphrase="correct horse battery staple",
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pin="123456",
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channel_key=channel_key, # Same channel key
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)
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print(f"Message: {decoded.message}")
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# Try to decode with wrong channel key
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print("\nTrying to decode with wrong channel key...")
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wrong_key = generate_channel_key()
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try:
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stegasoo.decode(
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stego_image=stego_data,
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reference_photo=reference_photo,
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passphrase="correct horse battery staple",
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pin="123456",
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channel_key=wrong_key, # Different channel key
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)
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print("ERROR: Should have failed!")
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except (stegasoo.DecryptionError, stegasoo.ExtractionError):
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print("Correctly rejected - wrong channel key!")
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if __name__ == "__main__":
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main()
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