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| Original file line number | Diff line number | Diff line change |
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| @@ -1 +1 @@ | ||
| Version=2.2 | ||
| Version=3.2 |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,22 @@ | ||
| /* | ||
| * This file is part of the Pico OpenPGP distribution (https://github.com/polhenarejos/pico-openpgp). | ||
| * 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 "openpgp.h" | ||
|
|
||
| int cmd_activate_file() { | ||
| return SW_OK(); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| * This file is part of the Pico OpenPGP distribution (https://github.com/polhenarejos/pico-openpgp). | ||
| * 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 "openpgp.h" | ||
| #include "random.h" | ||
|
|
||
| int cmd_challenge() { | ||
| uint8_t *rb = (uint8_t *) random_bytes_get(apdu.ne); | ||
| if (!rb) { | ||
| return SW_WRONG_LENGTH(); | ||
| } | ||
| memcpy(res_APDU, rb, apdu.ne); | ||
| res_APDU_size = apdu.ne; | ||
| return SW_OK(); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| * This file is part of the Pico OpenPGP distribution (https://github.com/polhenarejos/pico-openpgp). | ||
| * 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 "openpgp.h" | ||
| #include "otp.h" | ||
|
|
||
| int cmd_change_pin() { | ||
| if (P1(apdu) != 0x0) { | ||
| return SW_WRONG_P1P2(); | ||
| } | ||
| uint16_t fid = 0x1000 | P2(apdu); | ||
| file_t *pw; | ||
| if (!(pw = search_by_fid(fid, NULL, SPECIFY_EF))) { | ||
| return SW_REFERENCE_NOT_FOUND(); | ||
| } | ||
| uint8_t pin_len = file_get_data(pw)[0]; | ||
| uint16_t r = 0; | ||
| if ((r = load_dek()) != PICOKEY_OK) { | ||
| return SW_EXEC_ERROR(); | ||
| } | ||
|
|
||
| if (otp_key_1) { | ||
| for (int i = 0; i < 32; i++) { | ||
| dek[IV_SIZE + i] ^= otp_key_1[i]; | ||
| } | ||
| } | ||
| r = check_pin(pw, apdu.data, pin_len); | ||
| if (r != 0x9000) { | ||
| return r; | ||
| } | ||
| uint8_t dhash[33]; | ||
| dhash[0] = apdu.nc - pin_len; | ||
| double_hash_pin(apdu.data + pin_len, apdu.nc - pin_len, dhash + 1); | ||
| file_put_data(pw, dhash, sizeof(dhash)); | ||
|
|
||
| file_t *tf = search_by_fid(EF_DEK, NULL, SPECIFY_EF); | ||
| if (!tf) { | ||
| return SW_REFERENCE_NOT_FOUND(); | ||
| } | ||
| uint8_t def[IV_SIZE + 32 + 32 + 32 + 32] = {0}; | ||
| memcpy(def, file_get_data(tf), file_get_size(tf)); | ||
| if (P2(apdu) == 0x81) { | ||
| hash_multi(apdu.data + pin_len, apdu.nc - pin_len, session_pw1); | ||
| memcpy(def + IV_SIZE, dek + IV_SIZE, 32); | ||
| aes_encrypt_cfb_256(session_pw1, def, def + IV_SIZE, 32); | ||
| } | ||
| else if (P2(apdu) == 0x83) { | ||
| hash_multi(apdu.data + pin_len, apdu.nc - pin_len, session_pw3); | ||
| memcpy(def + IV_SIZE + 32 + 32, dek + IV_SIZE, 32); | ||
| aes_encrypt_cfb_256(session_pw3, def, def + IV_SIZE + 32 + 32, 32); | ||
| } | ||
| file_put_data(tf, def, sizeof(def)); | ||
| low_flash_available(); | ||
| return SW_OK(); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| * This file is part of the Pico OpenPGP distribution (https://github.com/polhenarejos/pico-openpgp). | ||
| * 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 "openpgp.h" | ||
| #include "asn1.h" | ||
|
|
||
| int cmd_get_data() { | ||
| if (apdu.nc > 0) { | ||
| return SW_WRONG_LENGTH(); | ||
| } | ||
| uint16_t fid = (P1(apdu) << 8) | P2(apdu); | ||
| file_t *ef; | ||
| if (!(ef = search_by_fid(fid, NULL, SPECIFY_EF))) { | ||
| return SW_REFERENCE_NOT_FOUND(); | ||
| } | ||
| if (!authenticate_action(ef, ACL_OP_READ_SEARCH)) { | ||
| return SW_SECURITY_STATUS_NOT_SATISFIED(); | ||
| } | ||
| if (currentEF && (currentEF->fid & 0x1FF0) == (fid & 0x1FF0)) { //previously selected | ||
| ef = currentEF; | ||
| } | ||
| else { | ||
| select_file(ef); | ||
| } | ||
| if (ef->data) { | ||
| uint16_t fids[] = { 1, fid }; | ||
| uint16_t data_len = parse_do(fids, 1); | ||
| uint8_t *p = NULL; | ||
| uint16_t tg = 0; | ||
| uint16_t tg_len = 0; | ||
| asn1_ctx_t ctxi; | ||
| asn1_ctx_init(res_APDU, data_len, &ctxi); | ||
| if (walk_tlv(&ctxi, &p, &tg, &tg_len, NULL)) { | ||
| uint8_t dec = 2; | ||
| if ((tg & 0x1f) == 0x1f) { | ||
| dec++; | ||
| } | ||
| if ((res_APDU[dec - 1] & 0xF0) == 0x80) { | ||
| dec += (res_APDU[dec - 1] & 0x0F); | ||
| } | ||
| if (tg_len + dec == data_len) { | ||
| memmove(res_APDU, res_APDU + dec, data_len - dec); | ||
| data_len -= dec; | ||
| res_APDU_size -= dec; | ||
| } | ||
| } | ||
| //if (apdu.ne > data_len) | ||
| // apdu.ne = data_len; | ||
| } | ||
| return SW_OK(); | ||
| } | ||
|
|
||
| int cmd_get_next_data() { | ||
| file_t *ef = NULL; | ||
| if (apdu.nc > 0) { | ||
| return SW_WRONG_LENGTH(); | ||
| } | ||
| if (!currentEF) { | ||
| return SW_RECORD_NOT_FOUND(); | ||
| } | ||
| uint16_t fid = (P1(apdu) << 8) | P2(apdu); | ||
| if (!(ef = search_by_fid(fid, NULL, SPECIFY_EF))) { | ||
| return SW_REFERENCE_NOT_FOUND(); | ||
| } | ||
| if (!authenticate_action(ef, ACL_OP_UPDATE_ERASE)) { | ||
| return SW_SECURITY_STATUS_NOT_SATISFIED(); | ||
| } | ||
| if ((currentEF->fid & 0x1FF0) != (fid & 0x1FF0)) { | ||
| return SW_WRONG_P1P2(); | ||
| } | ||
| fid = currentEF->fid + 1; //curentEF contains private DO. so, we select the next one | ||
| if (!(ef = search_by_fid(fid, NULL, SPECIFY_EF))) { | ||
| return SW_REFERENCE_NOT_FOUND(); | ||
| } | ||
| select_file(ef); | ||
| return cmd_get_data(); | ||
| } |
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