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mukul975
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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
60 lines
1.5 KiB
Markdown
60 lines
1.5 KiB
Markdown
# API Reference: Analyzing TLS Certificate Transparency Logs
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## pycrtsh
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```python
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from pycrtsh import Crtsh
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c = Crtsh()
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# Search certificates by domain
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certs = c.search("example.com") # exact match
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certs = c.search("%.example.com") # wildcard subdomains
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# Get certificate details by ID
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details = c.get(cert_id, type="id")
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details = c.get(sha1_hash, type="sha1")
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details = c.get(sha256_hash, type="sha256")
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```
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## crt.sh REST API (Direct)
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```python
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import requests
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# JSON output
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resp = requests.get("https://crt.sh/?q=%.example.com&output=json")
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records = resp.json()
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# Fields: id, issuer_ca_id, issuer_name, common_name,
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# name_value, not_before, not_after, serial_number
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```
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## certstream (Real-Time CT Monitoring)
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```python
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import certstream
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def callback(message, context):
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if message["message_type"] == "certificate_update":
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all_domains = message["data"]["leaf_cert"]["all_domains"]
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print(all_domains)
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certstream.listen_for_events(callback, url="wss://certstream.calidog.io/")
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```
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## Key Certificate Fields
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| Field | Description |
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|-------|-------------|
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| `common_name` | Primary domain on certificate |
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| `name_value` | SAN (Subject Alternative Names) |
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| `issuer_name` | Certificate Authority |
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| `not_before` | Issuance date |
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| `not_after` | Expiration date |
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### References
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- pycrtsh: https://pypi.org/project/pycrtsh/
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- crt.sh: https://crt.sh/
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- certstream: https://certstream.calidog.io/
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- CT RFC 6962: https://datatracker.ietf.org/doc/html/rfc6962
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