From 9af45c4cf052e3a6059a3004082f9ee3d2b3b2bf 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: Fri, 12 Apr 2013 15:33:31 +0700
Subject: [PATCH 15/26] OpenPGP: Delete key as file, for Gnuk.
---
src/libopensc/card-openpgp.c | 51 +++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 50 insertions(+), 1 deletion(-)
diff --git a/src/libopensc/card-openpgp.c b/src/libopensc/card-openpgp.c
index 7a77a71..4d0500d 100644
--- a/src/libopensc/card-openpgp.c
+++ b/src/libopensc/card-openpgp.c
@@ -2435,6 +2435,44 @@ static int pgp_card_ctl(sc_card_t *card, unsigned long cmd, void *ptr)
LOG_FUNC_RETURN(card->ctx, SC_ERROR_NOT_SUPPORTED);
}
+
+/* Internal: Delete key */
+static int
+gnuk_delete_key(sc_card_t *card, u8 key_id)
+{
+ sc_context_t *ctx = card->ctx;
+ int r = SC_SUCCESS;
+ u8 *data = NULL;
+
+ LOG_FUNC_CALLED(ctx);
+
+ /* Delete fingerprint */
+ sc_log(ctx, "Delete fingerprints");
+ r = pgp_put_data(card, 0xC6 + key_id, NULL, 0);
+ LOG_TEST_RET(ctx, r, "Failed to delete fingerprints");
+ /* Delete creation time */
+ sc_log(ctx, "Delete creation time");
+ r = pgp_put_data(card, 0xCD + key_id, NULL, 0);
+ LOG_TEST_RET(ctx, r, "Failed to delete creation time");
+
+ /* Rewrite Extended Header List */
+ sc_log(ctx, "Rewrite Extended Header List");
+
+ if (key_id == 1)
+ data = "\x4D\x02\xB6";
+ else if (key_id == 2)
+ data = "\x4D\x02\xB8";
+ else if (key_id == 3)
+ data = "\x4D\x02\xA4";
+ else
+ LOG_FUNC_RETURN(ctx, SC_ERROR_INVALID_ARGUMENTS);
+
+ r = pgp_put_data(card, 0x4D, data, strlen(data) + 1);
+
+ LOG_FUNC_RETURN(ctx, r);
+}
+
+
/* ABI: DELETE FILE */
static int
pgp_delete_file(sc_card_t *card, const sc_path_t *path)
@@ -2442,6 +2480,7 @@ pgp_delete_file(sc_card_t *card, const sc_path_t *path)
struct pgp_priv_data *priv = DRVDATA(card);
struct blob *blob;
sc_file_t *file;
+ u8 key_id;
int r;
LOG_FUNC_CALLED(card->ctx);
@@ -2457,10 +2496,20 @@ pgp_delete_file(sc_card_t *card, const sc_path_t *path)
if (blob == priv->mf)
LOG_FUNC_RETURN(card->ctx, SC_ERROR_NOT_SUPPORTED);
- if (file->id == 0xB601 || file->id == 0xB801 || file->id == 0xA401) {
+ if (card->type != SC_CARD_TYPE_OPENPGP_GNUK &&
+ (file->id == 0xB601 || file->id == 0xB801 || file->id == 0xA401)) {
/* These tags are just symbolic. We don't really delete it. */
r = SC_SUCCESS;
}
+ else if (card->type == SC_CARD_TYPE_OPENPGP_GNUK && file->id == 0xB601) {
+ r = gnuk_delete_key(card, 1);
+ }
+ else if (card->type == SC_CARD_TYPE_OPENPGP_GNUK && file->id == 0xB801) {
+ r = gnuk_delete_key(card, 2);
+ }
+ else if (card->type == SC_CARD_TYPE_OPENPGP_GNUK && file->id == 0xA401) {
+ r = gnuk_delete_key(card, 3);
+ }
else {
/* call pgp_put_data() with zero-sized NULL-buffer to zap the DO contents */
r = pgp_put_data(card, file->id, NULL, 0);
--
2.1.3