"""
Layer 2: Secure Communication & Encryption

Provides secure messaging framework with quantum hash signatures,
encryption, and tamper-evident message envelopes.
"""

from qalron.layer2.message_envelope import MessageEnvelope as OldEnvelope
from qalron.layer2.envelope import MessageEnvelope  # New tamper-proof version
from qalron.layer2.crypto import CryptoEngine
from qalron.layer2.entropy import EntropyManager

__all__ = [
    "MessageEnvelope",
    "OldEnvelope",
    "CryptoEngine",
    "EntropyManager",
]
