Module sync 

Encryption helpers used by the remote command for device-to-device notification relay.

Functions

decrypt_bytes

Decrypt a base64 payload into bytes using the given code.

encrypt_bytes

Encrypt arbitrary bytes with the given code; returns a base64 payload string.

generate_share_code

Generate a random share code like SC-a3f2b1c4d5e6f7a8b9.

pull_share

Pull {base_url, api_key} from the relay for code. api_key is decrypted with the code. Deletes the entry on success.

push_share

Push {base_url, api_key} to the relay under code. base_url is sent plaintext (not sensitive — it’s just an IP/URL). api_key is encrypted with the share code before sending — the relay never sees it.

validate_share_code

Validate that a share code has the expected format.