trezor-firmware/protob/storage.proto

/*
	Structure of Storage area of TREZOR

	Author: Marek Palatinus <slush@satoshilabs.com>

	Version: 0.1
*/

import "types.proto";

message Storage {
	required uint32 version = 1;
	optional HDNodeType node = 2;
	optional bytes mnemonic = 3 [(binary) = true];
	optional bool passphrase_protection = 4;	// whether node_serialized or mnemonic are encrypted (protected by passphrase)
	optional uint32 pin_failed_attempts = 5;
	optional bytes pin = 6;
	optional bytes language = 7;
	optional bytes label = 8 [(binary) = true];
}

message Session {
	optional bytes passphrase = 1 [(binary) = true];
	optional HDNodeType node = 2;
}