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mukul975 27c6414ca5 Add folder anatomy (scripts/agent.py + references/api-reference.md) for 648 cybersecurity skills

Complete skill folder anatomy across all cybersecurity skills:
- scripts/agent.py: 80-150 line Python agents using real libraries (impacket,
  boto3, azure-mgmt-*, kubernetes, pefile, yara, scapy, shodan, stix2, etc.)
- references/api-reference.md: real API documentation with method signatures
- LICENSE: MIT license for all skill folders

2026-03-10 21:02:12 +01:00

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API Reference: Ed25519 Digital Signature Agent

Dependencies

Library	Version	Purpose
cryptography	>=41.0	Ed25519 key generation, signing, verification

CLI Usage

# Generate keypair
python scripts/agent.py --generate-keys --output-dir /keys/

# Sign a file
python scripts/agent.py --sign release.tar.gz --private-key /keys/ed25519_private.pem

# Verify files
python scripts/agent.py --verify release.tar.gz --public-key /keys/ed25519_public.pem

Functions

`generate_keypair(output_dir, key_name) -> dict`

Ed25519PrivateKey.generate(), serializes with private_bytes(PEM, PKCS8, NoEncryption) and public_bytes(PEM, SubjectPublicKeyInfo).

`sign_message(private_key_path, message) -> dict`

Loads key via load_pem_private_key(), calls key.sign(message). Returns base64 and hex signature.

`sign_file(private_key_path, file_path) -> dict`

Signs file contents, writes .ed25519.sig JSON containing signature, hash, timestamp.

`verify_message(public_key_path, message, signature_b64) -> dict`

Calls key.verify(signature, message). Catches InvalidSignature.

`verify_file(public_key_path, file_path, sig_path) -> dict`

Verifies file against .ed25519.sig JSON, checks hash match.

cryptography API

Method	Purpose
`Ed25519PrivateKey.generate()`	Generate 32-byte private key
`private_key.sign(data)`	Create 64-byte signature
`public_key.verify(signature, data)`	Verify signature
`load_pem_private_key(data, password)`	Load PEM key

Output Schema

{
  "verifications": [{"file": "release.tar.gz", "valid": true}],
  "valid": 3, "invalid": 0
}

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