Simple Crypto
This environment is part of the mpe environments. Please read that page first for general information.
| Name | Value |
|---|---|
| Actions | Discrete/Continuous |
| Agents | 2 |
| Parallel API | Yes |
| Manual Control | No |
| Action Shape | (4) |
| Action Values | Discrete(4)/Box(0.0, 1.0, (4)) |
| Observation Shape | (4),(8) |
| Observation Values | (-inf,inf) |
| Import | from pettingzoo.mpe import simple_crypto_v2 |
| Agents | agents= [eve_0, bob_0, alice_0] |
| State Shape | (20,) |
| State Values | (-inf,inf) |
Agent Environment Cycle
Simple Crypto
In this environment, there are 2 good agents (Alice and Bob) and 1 adversary (Eve). Alice must sent a private 1 bit message to Bob over a public channel. Alice and Bob are rewarded +2 if Bob reconstructs the message, but are rewarded -2 if Eve reconstruct the message (that adds to 0 if both teams reconstruct the bit). Eve is rewarded -2 based if it cannot reconstruct the signal, zero if it can. Alice and Bob have a private key (randomly generated at beginning of each episode) which they must learn to use to encrypt the message.
Alice observation space: [message, private_key]
Bob observation space: [private_key, alices_comm]
Eve observation space: [alices_comm]
Alice action space: [say_0, say_1, say_2, say_3]
Bob action space: [say_0, say_1, say_2, say_3]
Eve action space: [say_0, say_1, say_2, say_3]
For Bob and Eve, their communication is checked to be the 1 bit of information that Alice is trying to convey.
Arguments
simple_crypto_v2.env(max_cycles=25, continuous_actions=False)
max_cycles: number of frames (a step for each agent) until game terminates
continuous_actions: Whether agent action spaces are discrete(default) or continuous