110 lines
3.6 KiB
C
110 lines
3.6 KiB
C
#include "shared_context.h"
|
|
#include "utils.h"
|
|
#include "ui_callbacks.h"
|
|
|
|
unsigned int io_seproxyhal_touch_tx_ok(const bagl_element_t *e) {
|
|
uint8_t privateKeyData[32];
|
|
uint8_t signature[100];
|
|
uint8_t signatureLength;
|
|
cx_ecfp_private_key_t privateKey;
|
|
uint32_t tx = 0;
|
|
uint32_t v = u32_from_BE(tmpContent.txContent.v, tmpContent.txContent.vLength, true);
|
|
io_seproxyhal_io_heartbeat();
|
|
os_perso_derive_node_bip32(CX_CURVE_256K1,
|
|
tmpCtx.transactionContext.bip32Path,
|
|
tmpCtx.transactionContext.pathLength,
|
|
privateKeyData,
|
|
NULL);
|
|
cx_ecfp_init_private_key(CX_CURVE_256K1, privateKeyData, 32, &privateKey);
|
|
explicit_bzero(privateKeyData, sizeof(privateKeyData));
|
|
unsigned int info = 0;
|
|
io_seproxyhal_io_heartbeat();
|
|
signatureLength = cx_ecdsa_sign(&privateKey,
|
|
CX_RND_RFC6979 | CX_LAST,
|
|
CX_SHA256,
|
|
tmpCtx.transactionContext.hash,
|
|
sizeof(tmpCtx.transactionContext.hash),
|
|
signature,
|
|
sizeof(signature),
|
|
&info);
|
|
explicit_bzero(&privateKey, sizeof(privateKey));
|
|
// Parity is present in the sequence tag in the legacy API
|
|
if (tmpContent.txContent.vLength == 0) {
|
|
// Legacy API
|
|
G_io_apdu_buffer[0] = 27;
|
|
} else {
|
|
// New API
|
|
// Note that this is wrong for a large v, but the client can always recover
|
|
G_io_apdu_buffer[0] = (v * 2) + 35;
|
|
}
|
|
if (info & CX_ECCINFO_PARITY_ODD) {
|
|
G_io_apdu_buffer[0]++;
|
|
}
|
|
if (info & CX_ECCINFO_xGTn) {
|
|
G_io_apdu_buffer[0] += 2;
|
|
}
|
|
format_signature_out(signature);
|
|
tx = 65;
|
|
G_io_apdu_buffer[tx++] = 0x90;
|
|
G_io_apdu_buffer[tx++] = 0x00;
|
|
// Send back the response, do not restart the event loop
|
|
io_exchange(CHANNEL_APDU | IO_RETURN_AFTER_TX, tx);
|
|
if (called_from_swap) {
|
|
os_sched_exit(0);
|
|
}
|
|
reset_app_context();
|
|
// Display back the original UX
|
|
ui_idle();
|
|
return 0; // do not redraw the widget
|
|
}
|
|
|
|
unsigned int io_seproxyhal_touch_tx_cancel(const bagl_element_t *e) {
|
|
reset_app_context();
|
|
G_io_apdu_buffer[0] = 0x69;
|
|
G_io_apdu_buffer[1] = 0x85;
|
|
// Send back the response, do not restart the event loop
|
|
io_exchange(CHANNEL_APDU | IO_RETURN_AFTER_TX, 2);
|
|
// Display back the original UX
|
|
ui_idle();
|
|
return 0; // do not redraw the widget
|
|
}
|
|
|
|
unsigned int io_seproxyhal_touch_data_ok(const bagl_element_t *e) {
|
|
parserStatus_e txResult = USTREAM_FINISHED;
|
|
txResult = continueTx(&txContext);
|
|
switch (txResult) {
|
|
case USTREAM_SUSPENDED:
|
|
break;
|
|
case USTREAM_FINISHED:
|
|
break;
|
|
case USTREAM_PROCESSING:
|
|
io_seproxyhal_send_status(0x9000);
|
|
ui_idle();
|
|
break;
|
|
case USTREAM_FAULT:
|
|
reset_app_context();
|
|
io_seproxyhal_send_status(0x6A80);
|
|
ui_idle();
|
|
break;
|
|
default:
|
|
PRINTF("Unexpected parser status\n");
|
|
reset_app_context();
|
|
io_seproxyhal_send_status(0x6A80);
|
|
ui_idle();
|
|
}
|
|
|
|
if (txResult == USTREAM_FINISHED) {
|
|
finalizeParsing(false);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
unsigned int io_seproxyhal_touch_data_cancel(const bagl_element_t *e) {
|
|
reset_app_context();
|
|
io_seproxyhal_send_status(0x6985);
|
|
// Display back the original UX
|
|
ui_idle();
|
|
return 0; // do not redraw the widget
|
|
}
|