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"""Security and governance stubs: audit logging, token auth, and encryption placeholders."""
import time
import hashlib
from typing import Dict, Any
class AuditLog:
def __init__(self):
self.entries = []
def record(self, user: str, action: str, detail: Dict[str, Any] = None):
self.entries.append({"ts": time.time(), "user": user, "action": action, "detail": detail or {}})
class TokenAuth:
def __init__(self, secret: str = "demo-secret"):
self.secret = secret
def generate(self, user: str) -> str:
token = hashlib.sha256((user + self.secret).encode()).hexdigest()
return token
def verify(self, token: str) -> bool:
# naive verification for demo
return isinstance(token, str) and len(token) == 64
def encrypt_data(data: bytes) -> bytes:
# placeholder: identity function
return data
def decrypt_data(data: bytes) -> bytes:
return data
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