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87 lines
3.2 KiB
87 lines
3.2 KiB
From 0cd2a488d86006bb2740a4e73e7a0d859e1bf33c Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Nguy=E1=BB=85n=20H=E1=BB=93ng=20Qu=C3=A2n?=
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<ng.hong.quan@gmail.com>
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Date: Sun, 13 Jul 2014 17:37:59 +0800
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Subject: [PATCH 22/26] OpenPGP: Use directly binary array of APDUs for ERASE
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command.
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I used a string presentation before and it needed an extra conversion step.
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---
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src/libopensc/card-openpgp.c | 47 +++++++++++++++++++++++---------------------
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1 file changed, 25 insertions(+), 22 deletions(-)
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diff --git a/src/libopensc/card-openpgp.c b/src/libopensc/card-openpgp.c
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index ae40940..724fe73 100644
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--- a/src/libopensc/card-openpgp.c
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+++ b/src/libopensc/card-openpgp.c
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@@ -2347,24 +2347,27 @@ out:
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static int pgp_erase_card(sc_card_t *card)
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{
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sc_context_t *ctx = card->ctx;
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- u8 *apdustring[10] = {
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- "00:20:00:81:08:40:40:40:40:40:40:40:40",
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- "00:20:00:81:08:40:40:40:40:40:40:40:40",
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- "00:20:00:81:08:40:40:40:40:40:40:40:40",
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- "00:20:00:81:08:40:40:40:40:40:40:40:40",
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- "00:20:00:83:08:40:40:40:40:40:40:40:40",
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- "00:20:00:83:08:40:40:40:40:40:40:40:40",
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- "00:20:00:83:08:40:40:40:40:40:40:40:40",
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- "00:20:00:83:08:40:40:40:40:40:40:40:40",
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- "00:e6:00:00",
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- "00:44:00:00"
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+ /* Special series of commands to erase OpenPGP card,
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+ * according to https://www.crypto-stick.com/en/faq
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+ * (How to reset a Crypto Stick? question).
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+ * Gnuk is known not to support this feature. */
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+ u8 apdu_binaries[10][13] = {
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+ {0, 0x20, 0, 0x81, 0x08, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40},
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+ {0, 0x20, 0, 0x81, 0x08, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40},
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+ {0, 0x20, 0, 0x81, 0x08, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40},
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+ {0, 0x20, 0, 0x81, 0x08, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40},
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+ {0, 0x20, 0, 0x83, 0x08, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40},
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+ {0, 0x20, 0, 0x83, 0x08, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40},
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+ {0, 0x20, 0, 0x83, 0x08, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40},
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+ {0, 0x20, 0, 0x83, 0x08, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40},
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+ {0, 0xe6, 0, 0},
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+ {0, 0x44, 0, 0}
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};
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+ u8 apdu_lens[10] = {13, 13, 13, 13, 13, 13, 13, 13, 4, 4};
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u8 buf[SC_MAX_APDU_BUFFER_SIZE];
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u8 rbuf[SC_MAX_APDU_BUFFER_SIZE];
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sc_apdu_t apdu;
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- size_t len0;
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- int commandsnum = 10;
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- int i, r;
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+ int i, l, r;
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LOG_FUNC_CALLED(ctx);
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@@ -2376,17 +2379,17 @@ static int pgp_erase_card(sc_card_t *card)
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sc_log(ctx, "Card is OpenPGP v2. Erase card.");
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/* Iterate over 10 commands above */
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- for (i = 0; i < commandsnum; i++) {
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- /* Convert the string to binary array */
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- len0 = sizeof(buf);
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- sc_hex_to_bin(apdustring[i], buf, &len0);
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- printf("Sending: ");
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- for (r = 0; r < len0; r++)
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- printf("%02X ", buf[r]);
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+ for (i = 0; i < sizeof(apdu_lens); i++) {
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+ /* Length of the binary array of the current command */
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+ l = apdu_lens[i];
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+ /* Print the command to console */
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+ printf("Sending %d: ", i);
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+ for (r = 0; r < l; r++)
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+ printf("%02X ", apdu_binaries[i][r]);
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printf("\n");
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/* Build APDU from binary array */
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- r = sc_bytes2apdu(card->ctx, buf, len0, &apdu);
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+ r = sc_bytes2apdu(card->ctx, apdu_binaries[i], l, &apdu);
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if (r) {
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sc_log(ctx, "Failed to build APDU");
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LOG_FUNC_RETURN(ctx, SC_ERROR_INTERNAL);
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--
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2.1.3
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