void lisk_sign_message(const HDNode *node, const LiskSignMessage *msg,
LiskMessageSignature *resp) {
layoutSignMessage(msg->message.bytes, msg->message.size);
if (!protectButton(ButtonRequestType_ButtonRequest_ProtectCall, false)) {
fsm_sendFailure(FailureType_Failure_ActionCancelled, NULL);
layoutHome();
return;
}
layoutProgressSwipe(_("Signing"), 0);
uint8_t signature[64];
uint8_t hash[32];
lisk_message_hash(msg->message.bytes, msg->message.size, hash);
ed25519_sign(hash, 32, node->private_key, &node->public_key[1], signature);
memcpy(resp->signature.bytes, signature, sizeof(signature));
memcpy(resp->public_key.bytes, &node->public_key[1], 32);
resp->has_signature = true;
resp->signature.size = 64;
resp->has_public_key = true;
resp->public_key.size = 32;
}
void fsm_msgSignMessage(SignMessage *msg)
{
RESP_INIT(MessageSignature);
layoutSignMessage(msg->message.bytes, msg->message.size);
if (!protectButton(ButtonRequestType_ButtonRequest_ProtectCall, false)) {
fsm_sendFailure(FailureType_Failure_ActionCancelled, "Sign message cancelled");
layoutHome();
return;
}
if (!protectPin(true)) {
layoutHome();
return;
}
const CoinType *coin = fsm_getCoin(msg->coin_name);
if (!coin) return;
const HDNode *node = fsm_getDerivedNode(msg->address_n, msg->address_n_count);
if (!node) return;
layoutProgressSwipe("Signing", 0);
if (cryptoMessageSign(msg->message.bytes, msg->message.size, node->private_key, resp->signature.bytes) == 0) {
resp->has_address = true;
uint8_t addr_raw[21];
ecdsa_get_address_raw(node->public_key, coin->address_type, addr_raw);
base58_encode_check(addr_raw, 21, resp->address, sizeof(resp->address));
resp->has_signature = true;
resp->signature.size = 65;
msg_write(MessageType_MessageType_MessageSignature, resp);
} else {
fsm_sendFailure(FailureType_Failure_Other, "Error signing message");
}
layoutHome();
}
void fsm_msgSignMessage(SignMessage *msg)
{
RESP_INIT(MessageSignature);
layoutSignMessage(msg->message.bytes, msg->message.size);
if (!protectButton(ButtonRequestType_ButtonRequest_ProtectCall, false)) {
fsm_sendFailure(FailureType_Failure_ActionCancelled, "Sign message cancelled");
layoutHome();
return;
}
if (!protectPin(true)) {
layoutHome();
return;
}
HDNode *node = fsm_getRootNode();
if (!node) return;
const CoinType *coin = coinByName(msg->coin_name);
if (!coin) {
fsm_sendFailure(FailureType_Failure_Other, "Invalid coin name");
layoutHome();
return;
}
fsm_deriveKey(node, msg->address_n, msg->address_n_count);
ecdsa_get_address(node->public_key, coin->address_type, resp->address);
layoutProgressSwipe("Signing", 0, 0);
if (transactionMessageSign(msg->message.bytes, msg->message.size, node->private_key, resp->address, resp->signature.bytes)) {
resp->has_address = true;
resp->has_signature = true;
resp->signature.size = 65;
msg_write(MessageType_MessageType_MessageSignature, resp);
} else {
fsm_sendFailure(FailureType_Failure_Other, "Error signing message");
}
layoutHome();
}
