Anthropic-Cybersecurity-Skills/skills/performing-ssl-tls-security-assessment/references/api-reference.md

API Reference: Performing SSL/TLS Security Assessment

sslyze Python API

from sslyze import Scanner, ServerScanRequest, ServerNetworkLocation

location = ServerNetworkLocation(hostname="example.com", port=443)
request = ServerScanRequest(server_location=location)
scanner = Scanner()
scanner.queue_scans([request])

for result in scanner.get_results():
    scan = result.scan_result
    # Access individual scan command results
    tls12 = scan.tls_1_2_cipher_suites
    cert = scan.certificate_info
    heartbleed = scan.heartbleed

Install: pip install sslyze

Scan Command Attributes

Attribute	Check
ssl_2_0_cipher_suites	SSLv2 support (must be disabled)
ssl_3_0_cipher_suites	SSLv3 support (must be disabled)
tls_1_0_cipher_suites	TLS 1.0 (deprecated)
tls_1_1_cipher_suites	TLS 1.1 (deprecated)
tls_1_2_cipher_suites	TLS 1.2 (current)
tls_1_3_cipher_suites	TLS 1.3 (recommended)
certificate_info	Certificate chain validation
heartbleed	CVE-2014-0160 Heartbleed
robot	ROBOT RSA oracle attack
openssl_ccs_injection	CVE-2014-0224
session_renegotiation	Client-initiated renego

Weak Cipher Suite Keywords

Keyword	Risk	Description
RC4	High	Broken stream cipher
DES / 3DES	High	Weak block cipher
NULL	Critical	No encryption
EXPORT	Critical	Weak export-grade cipher
anon	Critical	No authentication

sslyze CLI

sslyze example.com --regular
sslyze example.com --certinfo --tlsv1_2 --heartbleed --robot
sslyze example.com --json_out results.json

References

• sslyze GitHub: https://github.com/nabla-c0d3/sslyze
• sslyze Docs: https://nabla-c0d3.github.io/sslyze/documentation/
• sslyze PyPI: https://pypi.org/project/sslyze/
• Mozilla TLS Config: https://wiki.mozilla.org/Security/Server_Side_TLS