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https://github.com/trezor/trezor-firmware.git
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Added support for known appid.
This commit is contained in:
Jochen Hoenicke
parent
b3bfc64d2f
commit
5c13e78deb
@ -32,10 +32,12 @@
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#include "nist256p1.h"
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#include "rng.h"
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#include "hmac.h"
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#include "util.h"
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#include "u2f/u2f.h"
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#include "u2f/u2f_hid.h"
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#include "u2f/u2f_keys.h"
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#include "u2f_knownapps.h"
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#include "u2f.h"
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#define MIN(a, b) (((a) < (b)) ? (a) : (b))
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@ -96,31 +98,12 @@ uint8_t buttonState(void)
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return 0;
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}
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void int2hex(uint8_t *dst, const uint32_t i)
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{
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dst[0] = '0' + ((i >> 28) & 0x0F);
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dst[1] = '0' + ((i >> 24) & 0x0F);
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dst[2] = '0' + ((i >> 20) & 0x0F);
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dst[3] = '0' + ((i >> 16) & 0x0F);
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dst[4] = '0' + ((i >> 12) & 0x0F);
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dst[5] = '0' + ((i >> 8) & 0x0F);
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dst[6] = '0' + ((i >> 4) & 0x0F);
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dst[7] = '0' + (i & 0x0F);
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dst[8] = '\0';
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int t = 0;
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for (; t < 8; t++) {
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if (dst[t] > '9')
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dst[t] += 7; // 'A'-'9'+1
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}
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}
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char *debugInt(const uint32_t i)
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{
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static uint8_t n = 0;
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static uint8_t id[8][9];
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int2hex(id[n], i);
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debugLog(0, "", (const char *)id[n]);
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static char id[8][9];
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uint32hex(i, id[n]);
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debugLog(0, "", id[n]);
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char *ret = (char *)id[n];
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n = (n + 1) % 8;
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return ret;
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@ -426,6 +409,21 @@ void u2f_version(const APDU *a)
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send_u2f_msg(version_response, sizeof(version_response));
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}
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static const char *getReadableAppId(const uint8_t appid[32]) {
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unsigned int i;
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static char buf[6+2+6+1];
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for (i = 0; i < sizeof(u2f_well_known)/sizeof(U2FWellKnown); i++) {
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if (memcmp(appid, u2f_well_known[i].appid, 32) == 0)
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return u2f_well_known[i].appname;
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}
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data2hex(appid, 3, &buf[0]);
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buf[6] = buf[7] = '.';
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data2hex(appid+(sizeof(appid)-3), 3, &buf[8]);
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return buf;
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}
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const HDNode *getDerivedNode(uint32_t *address_n, size_t address_n_count)
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{
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static HDNode node;
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@ -529,7 +527,8 @@ void u2f_register(const APDU *a)
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send_u2f_error(U2F_SW_CONDITIONS_NOT_SATISFIED);
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buttonUpdate(); // Clear button state
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layoutDialog(DIALOG_ICON_QUESTION, "Cancel", "Register",
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NULL, "Register U2F", "security key", "", "", "", NULL);
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NULL, "Register U2F", "security key",
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"", getReadableAppId(req->appId), "", NULL);
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dialog_timeout = U2F_TIMEOUT;
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last_req_state = REG;
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return;
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@ -661,7 +660,8 @@ void u2f_authenticate(const APDU *a)
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send_u2f_error(U2F_SW_CONDITIONS_NOT_SATISFIED);
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buttonUpdate(); // Clear button state
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layoutDialog(DIALOG_ICON_QUESTION, "Cancel", "Authenticate", NULL,
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"Authenticate U2F", "security key", "", "", "", NULL);
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"Authenticate U2F", "security key",
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"", getReadableAppId(req->appId), "", NULL);
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dialog_timeout = U2F_TIMEOUT;
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last_req_state = AUTH;
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return;
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57
firmware/u2f_knownapps.h
Normal file
57
firmware/u2f_knownapps.h
Normal file
@ -0,0 +1,57 @@
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/*
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* This file is part of the TREZOR project.
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*
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* Copyright (C) 2016 Jochen Hoenicke <hoenicke@gmail.com>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __U2F_KNOWNAPPS_H_INCLUDED__
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#define __U2F_KNOWNAPPS_H_INCLUDED__
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#include <stdint.h>
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typedef struct {
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uint8_t appid[32];
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const char *appname;
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} U2FWellKnown;
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static const U2FWellKnown u2f_well_known[3] = {
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{
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// didn't feel like tracing that one yet
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{ 0xa5,0x46,0x72,0xb2,0x22,0xc4,0xcf,0x95,
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0xe1,0x51,0xed,0x8d,0x4d,0x3c,0x76,0x7a,
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0x6c,0xc3,0x49,0x43,0x59,0x43,0x79,0x4e,
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0x88,0x4f,0x3d,0x02,0x3a,0x82,0x29,0xfd },
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"Google"
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},
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{
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// https://github.com/u2f/trusted_facets
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{ 0x70,0x61,0x7d,0xfe,0xd0,0x65,0x86,0x3a,
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0xf4,0x7c,0x15,0x55,0x6c,0x91,0x79,0x88,
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0x80,0x82,0x8c,0xc4,0x07,0xfd,0xf7,0x0a,
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0xe8,0x50,0x11,0x56,0x94,0x65,0xa0,0x75 },
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"Github"
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},
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{
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// https://www.dropbox.com/u2f-app-id.json
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{ 0xc5,0x0f,0x8a,0x7b,0x70,0x8e,0x92,0xf8,
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0x2e,0x7a,0x50,0xe2,0xbd,0xc5,0x5d,0x8f,
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0xd9,0x1a,0x22,0xfe,0x6b,0x29,0xc0,0xcd,
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0xf7,0x80,0x55,0x30,0x84,0x2a,0xf5,0x81 },
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"Dropbox"
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}
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};
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#endif // U2F_KNOWNAPPS_INCLUDED
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