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Diffstat (limited to 'scd/card-dinsig.c')
| -rw-r--r-- | scd/card-dinsig.c | 256 |
1 files changed, 0 insertions, 256 deletions
diff --git a/scd/card-dinsig.c b/scd/card-dinsig.c deleted file mode 100644 index 161d5dbfc..000000000 --- a/scd/card-dinsig.c +++ /dev/null @@ -1,256 +0,0 @@ -/* card-dinsig.c - German signature law (DINSIG) functions - * Copyright (C) 2002 Free Software Foundation, Inc. - * - * This file is part of GnuPG. - * - * GnuPG 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; either version 2 of the License, or - * (at your option) any later version. - * - * GnuPG 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, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA - */ - -/* The German signature law and its bylaw (SigG and SigV) is currently - used with an interface specification described in DIN V 66291-1. - The AID to be used is: 'D27600006601'. - - The file IDs for certificates utilize the generic format: - Cxyz - C being the hex digit 'C' (12). - x being the service indicator: - '0' := SigG conform digital signature. - '1' := entity authentication. - '2' := key encipherment. - '3' := data encipherment. - '4' := key agreement. - other values are reserved for future use. - y being the security environment number using '0' for cards - not supporting a SE number. - z being the certificate type: - '0' := C.CH (base certificate of ard holder) or C.ICC. - '1' .. '7' := C.CH (business or professional certificate - of card holder. - '8' .. 'D' := C.CA (certificate of a CA issue by the Root-CA). - 'E' := C.RCA (self certified certificate of the Root-CA). - 'F' := reserved. - - The file IDs used by default are: - '1F00' EF.SSD (security service descriptor). [o,o] - '2F02' EF.GDO (global data objects) [m,m] - 'A000' EF.PROT (signature log). Cyclic file with 20 records of 53 byte. - Read and update after user authentication. [o,o] - 'B000' EF.PK.RCA.DS (public keys of Root-CA). Size is 512b or size - of keys. [m (unless a 'C00E' is present),m] - 'B001' EF.PK.CA.DS (public keys of CAs). Size is 512b or size - of keys. [o,o] - 'C00n' EF.C.CH.DS (digital signature certificate of card holder) - with n := 0 .. 7. Size is 2k or size of cert. Read and - update allowed after user authentication. [m,m] - 'C00m' EF.C.CA.DS (digital signature certificate of CA) - with m := 8 .. E. Size is 1k or size of cert. Read always - allowed, update after uder authentication. [o,o] - 'C100' EF.C.ICC.AUT (AUT certificate of ICC) [o,m] - 'C108' EF.C.CA.AUT (AUT certificate of CA) [o,m] - 'D000' EF.DM (display message) [-,m] - - The letters in brackets indicate optional or mandatory files: The - first for card terminals under full control and the second for - "business" card terminals. - - FIXME: Needs a lot more explanation. - -*/ - - -#include <config.h> -#include <errno.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <time.h> - -#include <opensc/pkcs15.h> -#include <ksba.h> - -#include "scdaemon.h" -#include "card-common.h" - -static int dinsig_read_cert (CARD card, const char *certidstr, - unsigned char **cert, size_t *ncert); - - - -/* See card.c for interface description. Frankly we don't do any real - enumeration but just check whether the well know files are - available. */ -static int -dinsig_enum_keypairs (CARD card, int idx, - unsigned char *keygrip, char **keyid) -{ - int rc; - unsigned char *buf; - size_t buflen; - KsbaError krc; - KsbaCert cert; - - /* fixme: We should locate the application via the EF(DIR) and not - assume a Netkey card */ - if (!idx) - rc = dinsig_read_cert (card, "DINSIG-DF01.C000", &buf, &buflen); - else if (idx == 1) - rc = dinsig_read_cert (card, "DINSIG-DF01.C200", &buf, &buflen); - else - rc = -1; - if (rc) - return rc; - - cert = ksba_cert_new (); - if (!cert) - { - xfree (buf); - return GNUPG_Out_Of_Core; - } - - krc = ksba_cert_init_from_mem (cert, buf, buflen); - xfree (buf); - if (krc) - { - log_error ("failed to parse the certificate at idx %d: %s\n", - idx, ksba_strerror (krc)); - ksba_cert_release (cert); - return GNUPG_Card_Error; - } - if (card_help_get_keygrip (cert, keygrip)) - { - log_error ("failed to calculate the keygrip at index %d\n", idx); - ksba_cert_release (cert); - return GNUPG_Card_Error; - } - ksba_cert_release (cert); - - /* return the iD */ - if (keyid) - { - *keyid = xtrymalloc (17); - if (!*keyid) - return GNUPG_Out_Of_Core; - if (!idx) - strcpy (*keyid, "DINSIG-DF01.C000"); - else - strcpy (*keyid, "DINSIG-DF01.C200"); - } - - return 0; -} - - - -/* See card.c for interface description */ -static int -dinsig_read_cert (CARD card, const char *certidstr, - unsigned char **cert, size_t *ncert) -{ - int rc; - struct sc_path path; - struct sc_file *file; - unsigned char *buf; - int buflen; - - if (!strcmp (certidstr, "DINSIG-DF01.C000")) - sc_format_path ("3F00DF01C000", &path); - else if (!strcmp (certidstr, "DINSIG-DF01.C200")) - sc_format_path ("3F00DF01C200", &path); - else - return GNUPG_Invalid_Id; - - rc = sc_select_file (card->scard, &path, &file); - if (rc) - { - log_error ("sc_select_file failed: %s\n", sc_strerror (rc)); - return map_sc_err (rc); - } - if (file->type != SC_FILE_TYPE_WORKING_EF - || file->ef_structure != SC_FILE_EF_TRANSPARENT) - { - log_error ("wrong type or structure of certificate EF\n"); - sc_file_free (file); - return GNUPG_Card_Error; - } - if (file->size < 20) /* check against a somewhat arbitrary length */ - { - log_error ("certificate EF too short\n"); - sc_file_free (file); - return GNUPG_Card_Error; - } - buf = xtrymalloc (file->size); - if (!buf) - { - sc_file_free (file); - return GNUPG_Out_Of_Core; - } - - rc = sc_read_binary (card->scard, 0, buf, file->size, 0); - if (rc >= 0 && rc != file->size) - { - log_error ("short read on certificate EF\n"); - sc_file_free (file); - xfree (buf); - return GNUPG_Card_Error; - } - sc_file_free (file); - if (rc < 0) - { - log_error ("error reading certificate EF: %s\n", sc_strerror (rc)); - xfree (buf); - return map_sc_err (rc); - } - buflen = rc; - - /* The object is not a plain certificate but wrapped into id-at - userCertificate - fixme: we should check the specs and decided - whether libksba should support it */ - if (buflen > 9 && buf[0] == 0x30 && buf[4] == 6 && buf[5] == 3 - && buf[6] == 0x55 && buf[7] == 4 && buf[8] == 0x24) - { - /* We have to strip the padding. Although this is a good idea - anyway, we have to do it due to a KSBA problem; KSBA does not - work correct when the buffer is larger than the ASN.1 - structure and the certificates here are padded with FF. So - as a workaround we look at the outer structure to get the - size of the entire thing and adjust the buflen. We can only - do this when there is a 2 byte length field */ - size_t seqlen; - if (buf[1] == 0x82) - { - seqlen = ((buf[2] << 8) | buf[3]) + 4; - if (seqlen < buflen) - buflen = seqlen; - } - memmove (buf, buf+9, buflen-9); - buflen -= 9; - } - - *cert = buf; - *ncert = buflen; - return 0; -} - - - - -/* Bind our operations to the card */ -void -card_dinsig_bind (CARD card) -{ - card->fnc.enum_keypairs = dinsig_enum_keypairs; - card->fnc.read_cert = dinsig_read_cert; - -} |