SSL/TLS Traffic Analysis

Encrypted traffic presents unique challenges:

Analysis Without Decryption:

Certificate analysis
JA3/JA3S fingerprinting
Traffic patterns
Timing analysis
Destination reputation

Decryption Methods:

Private key access
Man-in-the-middle proxies
Session key extraction
Perfect Forward Secrecy limitations

TLS Fingerprinting Example:

# JA3 fingerprint generation
import hashlib
def generate_ja3(tls_version, ciphers, extensions, curves, formats):
    ja3_string = f"{tls_version},{ciphers},{extensions},{curves},{formats}"
    return hashlib.md5(ja3_string.encode()).hexdigest()