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scd:openpgp: Fix workaround for Yubikey heuristics.
* scd/app-openpgp.c (parse_algorithm_attribute): Handle the case of firmware 5.4, too. -- Cherry-picked master commit of: f34b9147eb3070bce80d53febaa564164cd6c977 GnuPG-bug-id: 6070 Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
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@ -5252,15 +5252,28 @@ parse_algorithm_attribute (app_t app, int keyno)
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app->app_local->keyattr[keyno].ecc.flags = 0;
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app->app_local->keyattr[keyno].ecc.flags = 0;
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if (APP_CARD(app)->cardtype == CARDTYPE_YUBIKEY
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if (APP_CARD(app)->cardtype == CARDTYPE_YUBIKEY)
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|| buffer[buflen-1] == 0x00 || buffer[buflen-1] == 0xff)
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{
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{ /* Found "pubkey required"-byte for private key template. */
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/* Yubikey implementations vary.
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oidlen--;
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* Firmware version 5.2 returns "pubkey required"-byte with
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if (buffer[buflen-1] == 0xff)
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* 0x00, but after removal and second time insertion, it
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app->app_local->keyattr[keyno].ecc.flags |= ECC_FLAG_PUBKEY;
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* returns bogus value there.
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* Firmware version 5.4 returns none.
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*/
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curve = ecc_curve (buffer + 1, oidlen);
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if (!curve)
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curve = ecc_curve (buffer + 1, oidlen - 1);
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}
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else
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{
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if (buffer[buflen-1] == 0x00 || buffer[buflen-1] == 0xff)
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{ /* Found "pubkey required"-byte for private key template. */
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oidlen--;
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if (buffer[buflen-1] == 0xff)
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app->app_local->keyattr[keyno].ecc.flags |= ECC_FLAG_PUBKEY;
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}
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curve = ecc_curve (buffer + 1, oidlen);
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}
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}
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curve = ecc_curve (buffer + 1, oidlen);
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if (!curve)
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if (!curve)
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{
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{
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