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Adding authenticatorSelection 0x0B support.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos 2022-09-27 12:24:22 +02:00
parent d4b7bfd6cc
commit 0ec563c8de
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GPG Key ID: C0095B7870A4CCD3
5 changed files with 42 additions and 6 deletions
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1
CMakeLists.txt
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@ -60,6 +60,7 @@ target_sources(pico_fido PUBLIC
${CMAKE_CURRENT_LIST_DIR}/src/fido/cbor_client_pin.c
${CMAKE_CURRENT_LIST_DIR}/src/fido/credential.c
${CMAKE_CURRENT_LIST_DIR}/src/fido/cbor_get_assertion.c
${CMAKE_CURRENT_LIST_DIR}/src/fido/cbor_authenticator_selection.c
)
set(HSM_DRIVER "hid")
include(pico-hsm-sdk/pico_hsm_sdk_import.cmake)

11
src/fido/cbor.c
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@ -27,6 +27,15 @@
const bool _btrue = true, _bfalse = false;
extern int cbor_process(const uint8_t *data, size_t len);
int cbor_reset();
int cbor_get_info();
int cbor_make_credential(const uint8_t *data, size_t len);
int cbor_client_pin(const uint8_t *data, size_t len);
int cbor_get_assertion(const uint8_t *data, size_t len, bool next);
int cbor_get_next_assertion(const uint8_t *data, size_t len);
int cbor_authenticator_selection();
const uint8_t aaguid[16] = {0x89, 0xFB, 0x94, 0xB7, 0x06, 0xC9, 0x36, 0x73, 0x9B, 0x7E, 0x30, 0x52, 0x6D, 0x96, 0x81, 0x45}; // First 16 bytes of SHA256("Pico FIDO2")
const uint8_t *cbor_data = NULL;
@ -48,6 +57,8 @@ int cbor_parse(const uint8_t *data, size_t len) {
return cbor_get_assertion(data + 1, len - 1, false);
else if (data[0] == CTAP_GET_NEXT_ASSERTION)
return cbor_get_next_assertion(data + 1, len - 1);
else if (data[0] == CTAP_AUTHENTICATOR_SEL)
return cbor_authenticator_selection();
return CTAP2_ERR_INVALID_CBOR;
}

28
src/fido/cbor_authenticator_selection.c Normal file
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@ -0,0 +1,28 @@
/*
* This file is part of the Pico FIDO distribution (https://github.com/polhenarejos/pico-fido).
* Copyright (c) 2022 Pol Henarejos.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "ctap2_cbor.h"
#include "fido.h"
#include "ctap.h"
#include "bsp/board.h"
int cbor_authenticator_selection() {
if (wait_button_pressed() == true)
return CTAP2_ERR_USER_ACTION_TIMEOUT;
return CTAP2_OK;
}

2
src/fido/cbor_get_assertion.c
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@ -29,6 +29,8 @@
#include "credential.h"
#include <math.h>
int cbor_get_assertion(const uint8_t *data, size_t len, bool next);
bool residentx = false;
Credential credsx[MAX_CREDENTIAL_COUNT_IN_LIST] = {0};
uint8_t credentialCounter = 1;

6
src/fido/ctap2_cbor.h
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@ -26,12 +26,6 @@
extern uint8_t *driver_prepare_response();
extern void driver_exec_finished(size_t size_next);
extern int cbor_process(const uint8_t *data, size_t len);
extern int cbor_reset();
extern int cbor_get_info();
extern int cbor_make_credential(const uint8_t *data, size_t len);
extern int cbor_client_pin(const uint8_t *data, size_t len);
extern int cbor_get_assertion(const uint8_t *data, size_t len, bool next);
extern int cbor_get_next_assertion(const uint8_t *data, size_t len);
extern const uint8_t aaguid[16];
extern const bool _btrue, _bfalse;