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openwrt-packages-dist/utils/opensc/patches/0001-OpenPGP-Detect-and-sup...

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From 471b40173b73f213ee72bf05735abf3357658197 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nguy=E1=BB=85n=20H=E1=BB=93ng=20Qu=C3=A2n?=
<ng.hong.quan@gmail.com>
Date: Wed, 20 Feb 2013 11:54:30 +0700
Subject: [PATCH 01/26] OpenPGP: Detect and support Gnuk Token.
http://www.fsij.org/gnuk/
---
src/libopensc/card-openpgp.c | 61 ++++++++++++++++++++++++++++++++++----------
src/libopensc/cards.h | 1 +
src/tools/openpgp-tool.c | 7 ++++-
3 files changed, 55 insertions(+), 14 deletions(-)
diff --git a/src/libopensc/card-openpgp.c b/src/libopensc/card-openpgp.c
index 6774fe1..c785a55 100644
--- a/src/libopensc/card-openpgp.c
+++ b/src/libopensc/card-openpgp.c
@@ -43,6 +43,7 @@
static struct sc_atr_table pgp_atrs[] = {
{ "3b:fa:13:00:ff:81:31:80:45:00:31:c1:73:c0:01:00:00:90:00:b1", NULL, "OpenPGP card v1.0/1.1", SC_CARD_TYPE_OPENPGP_V1, 0, NULL },
{ "3b:da:18:ff:81:b1:fe:75:1f:03:00:31:c5:73:c0:01:40:00:90:00:0c", NULL, "CryptoStick v1.2 (OpenPGP v2.0)", SC_CARD_TYPE_OPENPGP_V2, 0, NULL },
+ { "3b:da:11:ff:81:b1:fe:55:1f:03:00:31:84:73:80:01:80:00:90:00:e4", NULL, "Gnuk v1.0.x (OpenPGP v2.0)", SC_CARD_TYPE_OPENPGP_GNUK, 0, NULL },
{ NULL, NULL, NULL, 0, 0, NULL }
};
@@ -307,6 +308,8 @@ pgp_init(sc_card_t *card)
int r;
struct blob *child = NULL;
+ LOG_FUNC_CALLED(card->ctx);
+
priv = calloc (1, sizeof *priv);
if (!priv)
return SC_ERROR_OUT_OF_MEMORY;
@@ -315,11 +318,11 @@ pgp_init(sc_card_t *card)
card->cla = 0x00;
/* set pointer to correct list of card objects */
- priv->pgp_objects = (card->type == SC_CARD_TYPE_OPENPGP_V2)
+ priv->pgp_objects = (card->type == SC_CARD_TYPE_OPENPGP_V2 || card->type == SC_CARD_TYPE_OPENPGP_GNUK)
? pgp2_objects : pgp1_objects;
/* set detailed card version */
- priv->bcd_version = (card->type == SC_CARD_TYPE_OPENPGP_V2)
+ priv->bcd_version = (card->type == SC_CARD_TYPE_OPENPGP_V2 || card->type == SC_CARD_TYPE_OPENPGP_GNUK)
? OPENPGP_CARD_2_0 : OPENPGP_CARD_1_1;
/* select application "OpenPGP" */
@@ -428,7 +431,8 @@ pgp_get_card_features(sc_card_t *card)
if ((pgp_get_blob(card, blob73, 0x00c0, &blob) >= 0) &&
(blob->data != NULL) && (blob->len > 0)) {
/* in v2.0 bit 0x04 in first byte means "algorithm attributes changeable */
- if ((blob->data[0] & 0x04) && (card->type == SC_CARD_TYPE_OPENPGP_V2))
+ if ((blob->data[0] & 0x04) &&
+ (card->type == SC_CARD_TYPE_OPENPGP_V2 || card->type == SC_CARD_TYPE_OPENPGP_GNUK))
priv->ext_caps |= EXT_CAP_ALG_ATTR_CHANGEABLE;
/* bit 0x08 in first byte means "support for private use DOs" */
if (blob->data[0] & 0x08)
@@ -445,7 +449,8 @@ pgp_get_card_features(sc_card_t *card)
priv->ext_caps |= EXT_CAP_GET_CHALLENGE;
}
/* in v2.0 bit 0x80 in first byte means "support Secure Messaging" */
- if ((blob->data[0] & 0x80) && (card->type == SC_CARD_TYPE_OPENPGP_V2))
+ if ((blob->data[0] & 0x80) &&
+ (card->type == SC_CARD_TYPE_OPENPGP_V2 || card->type == SC_CARD_TYPE_OPENPGP_GNUK))
priv->ext_caps |= EXT_CAP_SM;
if ((priv->bcd_version >= OPENPGP_CARD_2_0) && (blob->len >= 10)) {
@@ -1057,12 +1062,18 @@ static int
pgp_get_pubkey(sc_card_t *card, unsigned int tag, u8 *buf, size_t buf_len)
{
sc_apdu_t apdu;
+ u8 apdu_case = SC_APDU_CASE_4;
u8 idbuf[2];
int r;
sc_log(card->ctx, "called, tag=%04x\n", tag);
- sc_format_apdu(card, &apdu, SC_APDU_CASE_4, 0x47, 0x81, 0);
+ /* With Gnuk token, force to use short APDU */
+ if (card->type == SC_CARD_TYPE_OPENPGP_GNUK) {
+ apdu_case = SC_APDU_CASE_4_SHORT;
+ }
+
+ sc_format_apdu(card, &apdu, apdu_case, 0x47, 0x81, 0);
apdu.lc = 2;
apdu.data = ushort2bebytes(idbuf, tag);
apdu.datalen = 2;
@@ -1154,6 +1165,7 @@ pgp_put_data(sc_card_t *card, unsigned int tag, const u8 *buf, size_t buf_len)
u8 ins = 0xDA;
u8 p1 = tag >> 8;
u8 p2 = tag & 0xFF;
+ u8 apdu_case = SC_APDU_CASE_3;
int r;
LOG_FUNC_CALLED(card->ctx);
@@ -1195,13 +1207,17 @@ pgp_put_data(sc_card_t *card, unsigned int tag, const u8 *buf, size_t buf_len)
/* Build APDU */
if (buf != NULL && buf_len > 0) {
- sc_format_apdu(card, &apdu, SC_APDU_CASE_3, ins, p1, p2);
+ /* Force short APDU for Gnuk */
+ if (card->type == SC_CARD_TYPE_OPENPGP_GNUK) {
+ apdu_case = SC_APDU_CASE_3_SHORT;
+ }
+ sc_format_apdu(card, &apdu, apdu_case, ins, p1, p2);
/* if card/reader does not support extended APDUs, but chaining, then set it */
if (((card->caps & SC_CARD_CAP_APDU_EXT) == 0) && (priv->ext_caps & EXT_CAP_CHAINING))
apdu.flags |= SC_APDU_FLAGS_CHAINING;
- apdu.data = buf;
+ apdu.data = (u8 *)buf;
apdu.datalen = buf_len;
apdu.lc = buf_len;
}
@@ -1328,6 +1344,7 @@ pgp_compute_signature(sc_card_t *card, const u8 *data,
struct pgp_priv_data *priv = DRVDATA(card);
sc_security_env_t *env = &priv->sec_env;
sc_apdu_t apdu;
+ u8 apdu_case = SC_APDU_CASE_4;
int r;
LOG_FUNC_CALLED(card->ctx);
@@ -1336,14 +1353,19 @@ pgp_compute_signature(sc_card_t *card, const u8 *data,
LOG_TEST_RET(card->ctx, SC_ERROR_INVALID_ARGUMENTS,
"invalid operation");
+ /* Force short APDU for Gnuk Token */
+ if (card->type == SC_CARD_TYPE_OPENPGP_GNUK) {
+ apdu_case = SC_APDU_CASE_4_SHORT;
+ }
+
switch (env->key_ref[0]) {
case 0x00: /* signature key */
/* PSO SIGNATURE */
- sc_format_apdu(card, &apdu, SC_APDU_CASE_4, 0x2A, 0x9E, 0x9A);
+ sc_format_apdu(card, &apdu, apdu_case, 0x2A, 0x9E, 0x9A);
break;
case 0x02: /* authentication key */
/* INTERNAL AUTHENTICATE */
- sc_format_apdu(card, &apdu, SC_APDU_CASE_4, 0x88, 0, 0);
+ sc_format_apdu(card, &apdu, apdu_case, 0x88, 0, 0);
break;
case 0x01:
default:
@@ -1352,7 +1374,7 @@ pgp_compute_signature(sc_card_t *card, const u8 *data,
}
apdu.lc = data_len;
- apdu.data = data;
+ apdu.data = (u8 *)data;
apdu.datalen = data_len;
apdu.le = ((outlen >= 256) && !(card->caps & SC_CARD_CAP_APDU_EXT)) ? 256 : outlen;
apdu.resp = out;
@@ -1376,6 +1398,7 @@ pgp_decipher(sc_card_t *card, const u8 *in, size_t inlen,
struct pgp_priv_data *priv = DRVDATA(card);
sc_security_env_t *env = &priv->sec_env;
sc_apdu_t apdu;
+ u8 apdu_case = SC_APDU_CASE_4;
u8 *temp = NULL;
int r;
@@ -1400,7 +1423,7 @@ pgp_decipher(sc_card_t *card, const u8 *in, size_t inlen,
case 0x01: /* Decryption key */
case 0x02: /* authentication key */
/* PSO DECIPHER */
- sc_format_apdu(card, &apdu, SC_APDU_CASE_4, 0x2A, 0x80, 0x86);
+ sc_format_apdu(card, &apdu, apdu_case, 0x2A, 0x80, 0x86);
break;
case 0x00: /* signature key */
default:
@@ -1409,8 +1432,13 @@ pgp_decipher(sc_card_t *card, const u8 *in, size_t inlen,
"invalid key reference");
}
+ /* Gnuk only supports short APDU, so we need to use command chaining */
+ if (card->type == SC_CARD_TYPE_OPENPGP_GNUK) {
+ apdu.flags |= SC_APDU_FLAGS_CHAINING;
+ }
+
apdu.lc = inlen;
- apdu.data = in;
+ apdu.data = (u8 *)in;
apdu.datalen = inlen;
apdu.le = ((outlen >= 256) && !(card->caps & SC_CARD_CAP_APDU_EXT)) ? 256 : outlen;
apdu.resp = out;
@@ -1794,6 +1822,11 @@ static int pgp_gen_key(sc_card_t *card, sc_cardctl_openpgp_keygen_info_t *key_in
LOG_FUNC_RETURN(card->ctx, SC_ERROR_INVALID_ARGUMENTS);
}
+ if (card->type == SC_CARD_TYPE_OPENPGP_GNUK && key_info->modulus_len != 2048) {
+ sc_log(card->ctx, "Gnuk does not support other key length than 2048.");
+ LOG_FUNC_RETURN(card->ctx, SC_ERROR_INVALID_ARGUMENTS);
+ }
+
/* Set attributes for new-generated key */
r = pgp_update_new_algo_attr(card, key_info);
LOG_TEST_RET(card->ctx, r, "Cannot set attributes for new-generated key");
@@ -1801,7 +1834,9 @@ static int pgp_gen_key(sc_card_t *card, sc_cardctl_openpgp_keygen_info_t *key_in
/* Test whether we will need extended APDU. 1900 is an
* arbitrary modulus length which for sure fits into a short APDU.
* This idea is borrowed from GnuPG code. */
- if (card->caps & SC_CARD_CAP_APDU_EXT && key_info->modulus_len > 1900) {
+ if (card->caps & SC_CARD_CAP_APDU_EXT
+ && key_info->modulus_len > 1900
+ && card->type != SC_CARD_TYPE_OPENPGP_GNUK) {
/* We won't store to apdu variable yet, because it will be reset in
* sc_format_apdu() */
apdu_le = card->max_recv_size;
diff --git a/src/libopensc/cards.h b/src/libopensc/cards.h
index 7be6667..a3f3634 100644
--- a/src/libopensc/cards.h
+++ b/src/libopensc/cards.h
@@ -105,6 +105,7 @@ enum {
SC_CARD_TYPE_OPENPGP_BASE = 9000,
SC_CARD_TYPE_OPENPGP_V1,
SC_CARD_TYPE_OPENPGP_V2,
+ SC_CARD_TYPE_OPENPGP_GNUK,
/* jcop driver */
SC_CARD_TYPE_JCOP_BASE = 10000,
diff --git a/src/tools/openpgp-tool.c b/src/tools/openpgp-tool.c
index f42e6d6..a24a395 100644
--- a/src/tools/openpgp-tool.c
+++ b/src/tools/openpgp-tool.c
@@ -33,6 +33,7 @@
#include "libopensc/cards.h"
#include "libopensc/cardctl.h"
#include "libopensc/errors.h"
+#include "libopensc/log.h"
#include "util.h"
#include "libopensc/log.h"
@@ -396,6 +397,8 @@ int do_genkey(sc_card_t *card, u8 key_id, unsigned int key_len)
sc_path_t path;
sc_file_t *file;
+ LOG_FUNC_CALLED(card->ctx);
+
if (key_id < 1 || key_id > 3) {
printf("Unknown key ID %d.\n", key_id);
return 1;
@@ -487,8 +490,10 @@ int main(int argc, char **argv)
/* check card type */
if ((card->type != SC_CARD_TYPE_OPENPGP_V1) &&
- (card->type != SC_CARD_TYPE_OPENPGP_V2)) {
+ (card->type != SC_CARD_TYPE_OPENPGP_V2) &&
+ (card->type != SC_CARD_TYPE_OPENPGP_GNUK)) {
util_error("not an OpenPGP card");
+ sc_log(card->ctx, "Card type %X", card->type);
exit_status = EXIT_FAILURE;
goto out;
}
--
2.1.3