libbeidlibopensc2-dev 3.5.2.dfsg-10ubuntu3 / usr / include / beid / opensc / pkcs15.h

/*
 * pkcs15.h: OpenSC PKCS#15 header file
 *
 * Copyright (C) 2001, 2002  Juha Yrjölä <juha.yrjola@iki.fi>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef _OPENSC_PKCS15_H
#define _OPENSC_PKCS15_H

#ifdef  __cplusplus
extern "C" {
#endif

#include <opensc/opensc.h>

#define SC_PKCS15_CACHE_DIR		".eid"

#define SC_PKCS15_PIN_MAGIC		0x31415926
#define SC_PKCS15_MAX_PINS		2
#define SC_PKCS15_MAX_PRKEYS		2
#define SC_PKCS15_MAX_PUBKEYS		2
#define SC_PKCS15_MAX_LABEL_SIZE	255
#define SC_PKCS15_MAX_ID_SIZE		255
#define SC_PKCS15_MAX_DFS		4
#define SC_PKCS15_MAX_CERTS		4	/* Total certificates */

struct sc_pkcs15_id {
	u8 value[SC_PKCS15_MAX_ID_SIZE];
	size_t len;
};
typedef struct sc_pkcs15_id sc_pkcs15_id_t;

#define SC_PKCS15_CO_FLAG_PRIVATE	0x00000001
#define SC_PKCS15_CO_FLAG_MODIFIABLE	0x00000002
#define SC_PKCS15_CO_FLAG_OBJECT_SEEN	0x80000000 /* for PKCS #11 module */

#define SC_PKCS15_PIN_FLAG_CASE_SENSITIVE		0x0001
#define SC_PKCS15_PIN_FLAG_LOCAL			0x0002
#define SC_PKCS15_PIN_FLAG_CHANGE_DISABLED		0x0004
#define SC_PKCS15_PIN_FLAG_UNBLOCK_DISABLED		0x0008
#define SC_PKCS15_PIN_FLAG_INITIALIZED			0x0010
#define SC_PKCS15_PIN_FLAG_NEEDS_PADDING		0x0020
#define SC_PKCS15_PIN_FLAG_UNBLOCKING_PIN		0x0040
#define SC_PKCS15_PIN_FLAG_SO_PIN			0x0080
#define SC_PKCS15_PIN_FLAG_DISABLE_ALLOW		0x0100
#define SC_PKCS15_PIN_FLAG_INTEGRITY_PROTECTED		0x0200
#define SC_PKCS15_PIN_FLAG_CONFIDENTIALITY_PROTECTED	0x0400
#define SC_PKCS15_PIN_FLAG_EXCHANGE_REF_DATA		0x0800

#define SC_PKCS15_PIN_TYPE_BCD				0
#define SC_PKCS15_PIN_TYPE_ASCII_NUMERIC		1
#define SC_PKCS15_PIN_TYPE_UTF8				2
#define SC_PKCS15_PIN_TYPE_HALFNIBBLE_BCD		3
#define SC_PKCS15_PIN_TYPE_ISO9564_1			4

struct sc_pkcs15_pin_info {
	struct sc_pkcs15_id auth_id;
	int reference;
	int flags, type;
	size_t min_length, stored_length, max_length;
	u8 pad_char;
	struct sc_path path;
	int tries_left;

	unsigned int magic;
};
typedef struct sc_pkcs15_pin_info sc_pkcs15_pin_info_t;

#define SC_PKCS15_ALGO_OP_COMPUTE_CHECKSUM	0x01
#define SC_PKCS15_ALGO_OP_COMPUTE_SIGNATURE	0x02
#define SC_PKCS15_ALGO_OP_VERIFY_CHECKSUM	0x04
#define SC_PKCS15_ALGO_OP_VERIFY_SIGNATURE	0x08
#define SC_PKCS15_ALGO_OP_ENCIPHER		0x10
#define SC_PKCS15_ALGO_OP_DECIPHER		0x20
#define SC_PKCS15_ALGO_OP_HASH			0x40
#define SC_PKCS15_ALGO_OP_GENERATE_KEY		0x80

struct sc_pkcs15_algorithm_info {
	int reference;
	int algorithm, supported_operations;
};

/* A large integer, big endian notation */
struct sc_pkcs15_bignum {
	u8 *		data;
	size_t		len;
};
typedef struct sc_pkcs15_bignum sc_pkcs15_bignum_t;

struct sc_pkcs15_der {
	u8 *		value;
	size_t		len;
};
typedef struct sc_pkcs15_der sc_pkcs15_der_t;

struct sc_pkcs15_pubkey_rsa {
	sc_pkcs15_bignum_t modulus;
	sc_pkcs15_bignum_t exponent;
};

struct sc_pkcs15_prkey_rsa {
	/* public components */
	sc_pkcs15_bignum_t modulus;
	sc_pkcs15_bignum_t exponent;

	/* private components */
	sc_pkcs15_bignum_t d;
	sc_pkcs15_bignum_t p;
	sc_pkcs15_bignum_t q;

	/* optional CRT elements */
	sc_pkcs15_bignum_t iqmp;
	sc_pkcs15_bignum_t dmp1;
	sc_pkcs15_bignum_t dmq1;
};

struct sc_pkcs15_pubkey_dsa {
	sc_pkcs15_bignum_t pub;
	sc_pkcs15_bignum_t p;
	sc_pkcs15_bignum_t q;
	sc_pkcs15_bignum_t g;
};

struct sc_pkcs15_prkey_dsa {
	/* public components */
	sc_pkcs15_bignum_t pub;
	sc_pkcs15_bignum_t p;
	sc_pkcs15_bignum_t q;
	sc_pkcs15_bignum_t g;

	/* private key */
	sc_pkcs15_bignum_t priv;
};

struct sc_pkcs15_pubkey {
	int algorithm;

	/* Decoded key */
	union {
		struct sc_pkcs15_pubkey_rsa rsa;
		struct sc_pkcs15_pubkey_dsa dsa;
	} u;

	/* DER encoded raw key */
	sc_pkcs15_der_t data;
};
typedef struct sc_pkcs15_pubkey sc_pkcs15_pubkey_t;

struct sc_pkcs15_prkey {
	int algorithm;
	union {
		struct sc_pkcs15_prkey_rsa rsa;
		struct sc_pkcs15_prkey_dsa dsa;
	} u;
};
typedef struct sc_pkcs15_prkey sc_pkcs15_prkey_t;

/* Enveloped objects can be used to provide additional
 * protection to non-native private keys */
struct sc_pkcs15_enveloped_data {
	/* recipient info */
	sc_pkcs15_id_t id;		/* key ID */
	struct sc_algorithm_id ke_alg;	/* key-encryption algo */
	u8 *key;			/* encrypted key */
	size_t key_len;
	struct sc_algorithm_id ce_alg;	/* content-encryption algo */
	u8 *content;			/* encrypted content */
	size_t content_len;
};

struct sc_pkcs15_cert {
	int version;
	u8 *serial;
	size_t serial_len;
	u8 *issuer;
	size_t issuer_len;
	u8 *subject;
	size_t subject_len;
	u8 *crl;
	size_t crl_len;

	struct sc_pkcs15_pubkey key;
	u8 *data;	/* DER encoded raw cert */
	size_t data_len;
};
typedef struct sc_pkcs15_cert sc_pkcs15_cert_t;

struct sc_pkcs15_cert_info {
	struct sc_pkcs15_id id;	/* correlates to private key id */
	int authority;		/* boolean */
	/* identifiers [2] SEQUENCE OF CredentialIdentifier{{KeyIdentifiers}} */
	struct sc_path path;
};
typedef struct sc_pkcs15_cert_info sc_pkcs15_cert_info_t;

struct sc_pkcs15_data {
	u8 *data;	/* DER encoded raw data object */
	size_t data_len;
};
typedef struct sc_pkcs15_data sc_pkcs15_data_t;

struct sc_pkcs15_data_info {
	/* FIXME: there is no pkcs15 ID in DataType */
	struct sc_pkcs15_id id;

	/* Identify the application:
	 * either or both may be set */
	char app_label[SC_PKCS15_MAX_LABEL_SIZE];
	struct sc_object_id app_oid;

	struct sc_path path;
};
typedef struct sc_pkcs15_data_info sc_pkcs15_data_info_t;

#define SC_PKCS15_PRKEY_USAGE_ENCRYPT		0x01
#define SC_PKCS15_PRKEY_USAGE_DECRYPT		0x02
#define SC_PKCS15_PRKEY_USAGE_SIGN		0x04
#define SC_PKCS15_PRKEY_USAGE_SIGNRECOVER	0x08
#define SC_PKCS15_PRKEY_USAGE_WRAP		0x10
#define SC_PKCS15_PRKEY_USAGE_UNWRAP		0x20
#define SC_PKCS15_PRKEY_USAGE_VERIFY		0x40
#define SC_PKCS15_PRKEY_USAGE_VERIFYRECOVER	0x80
#define SC_PKCS15_PRKEY_USAGE_DERIVE		0x100
#define SC_PKCS15_PRKEY_USAGE_NONREPUDIATION	0x200

#define SC_PKCS15_PRKEY_ACCESS_SENSITIVE	0x01
#define SC_PKCS15_PRKEY_ACCESS_EXTRACTABLE	0x02
#define SC_PKCS15_PRKEY_ACCESS_ALWAYSSENSITIVE	0x04
#define SC_PKCS15_PRKEY_ACCESS_NEVEREXTRACTABLE	0x08
#define SC_PKCS15_PRKEY_ACCESS_LOCAL		0x10

struct sc_pkcs15_prkey_info {
	struct sc_pkcs15_id id;	/* correlates to public certificate id */
	unsigned int usage, access_flags;
	int native, key_reference;
	size_t modulus_length;

	struct sc_path path;
};
typedef struct sc_pkcs15_prkey_info sc_pkcs15_prkey_info_t;

struct sc_pkcs15_pubkey_info {
	struct sc_pkcs15_id id;	/* correlates to private key id */
	unsigned int usage, access_flags;
	int native, key_reference;
	int modulus_length;

	struct sc_path path;
};
typedef struct sc_pkcs15_pubkey_info sc_pkcs15_pubkey_info_t;

#define SC_PKCS15_TYPE_CLASS_MASK		0xF00

#define SC_PKCS15_TYPE_PRKEY			0x100
#define SC_PKCS15_TYPE_PRKEY_RSA		0x101
#define SC_PKCS15_TYPE_PRKEY_DSA		0x102

#define SC_PKCS15_TYPE_PUBKEY			0x200
#define SC_PKCS15_TYPE_PUBKEY_RSA		0x201
#define SC_PKCS15_TYPE_PUBKEY_DSA		0x202

#define SC_PKCS15_TYPE_CERT			0x400
#define SC_PKCS15_TYPE_CERT_X509		0x401
#define SC_PKCS15_TYPE_CERT_SPKI		0x402

#define SC_PKCS15_TYPE_DATA_OBJECT		0x500
#define SC_PKCS15_TYPE_AUTH			0x600
#define SC_PKCS15_TYPE_AUTH_PIN			0x601

struct sc_pkcs15_object {
	int type;
	/* CommonObjectAttributes */
	char label[SC_PKCS15_MAX_LABEL_SIZE];	/* zero terminated */
	int flags;
	struct sc_pkcs15_id auth_id;

	int user_consent;

	/* Object type specific data */
	void *data;

	struct sc_pkcs15_df *df; /* can be NULL, if object is 'floating' */
	struct sc_pkcs15_object *next, *prev; /* used only internally */
	
	struct sc_pkcs15_der der;
};
typedef struct sc_pkcs15_object sc_pkcs15_object_t;

/* PKCS #15 DF types */
#define SC_PKCS15_PRKDF			0
#define SC_PKCS15_PUKDF			1
#define SC_PKCS15_PUKDF_TRUSTED		2
#define SC_PKCS15_SKDF			3
#define SC_PKCS15_CDF			4
#define SC_PKCS15_CDF_TRUSTED		5
#define SC_PKCS15_CDF_USEFUL		6
#define SC_PKCS15_DODF			7
#define SC_PKCS15_AODF			8
#define SC_PKCS15_DF_TYPE_COUNT		9

struct sc_pkcs15_df {
	struct sc_file *file;

	struct sc_path path;
	int record_length, type;
	int enumerated;

	struct sc_pkcs15_df *next, *prev;
};

#define SC_PKCS15_CARD_MAGIC		0x10203040

#define FILE_PART_LEN    16

typedef struct sc_pkcs15_card {
	sc_card_t *card;
	char *label;
	/* fields from TokenInfo: */
	int version;
	char *serial_number, *manufacturer_id;
	struct sc_pkcs15_algorithm_info alg_info[1];

	/* From the belpic EF(TokenInfo) */
	int graphicalversion;
	int persoversion;
	int persointerfaceversion;

	unsigned long flags;

	/* Belpic: last 16 bytes of the ID signature file (3F00/DF01/4032) */
	unsigned char cache_key[FILE_PART_LEN];
	int cache_key_read;

	sc_file_t *file_app;
	sc_file_t *file_tokeninfo, *file_odf;

	struct sc_pkcs15_df *df_list;
	struct sc_pkcs15_object *obj_list;
	int record_lengths[SC_PKCS15_DF_TYPE_COUNT];

	struct sc_pkcs15_card_opts {
		int use_cache;
	} opts;

	unsigned int magic;
} sc_pkcs15_card_t;

#define SC_PKCS15_CARD_FLAG_READONLY		0x01
#define SC_PKCS15_CARD_FLAG_LOGIN_REQUIRED	0x02
#define SC_PKCS15_CARD_FLAG_PRN_GENERATION	0x04
#define SC_PKCS15_CARD_FLAG_EID_COMPLIANT	0x08

/* sc_pkcs15_bind:  Binds a card object to a PKCS #15 card object
 * and initializes a new PKCS #15 card object.  Will return
 * SC_ERROR_PKCS15_APP_NOT_FOUND, if the card hasn't got a
 * valid PKCS #15 file structure. */
int sc_pkcs15_bind(struct sc_card *card,
		   struct sc_pkcs15_card **pkcs15_card);
/* sc_pkcs15_unbind:  Releases a PKCS #15 card object, and frees any
 * memory allocations done on the card object. */
int sc_pkcs15_unbind(struct sc_pkcs15_card *card);

int sc_pkcs15_get_objects(struct sc_pkcs15_card *card, int type,
			  struct sc_pkcs15_object **ret, int ret_count);
int sc_pkcs15_get_objects_cond(struct sc_pkcs15_card *card, int type,
			       int (* func)(struct sc_pkcs15_object *, void *),
			       void *func_arg,
			       struct sc_pkcs15_object **ret, int ret_count);

struct sc_pkcs15_card * sc_pkcs15_card_new(void);
void sc_pkcs15_card_free(struct sc_pkcs15_card *p15card);

void sc_pkcs15_print_card(const struct sc_pkcs15_card *card);

int sc_pkcs15_decipher(struct sc_pkcs15_card *p15card,
		       const struct sc_pkcs15_object *prkey_obj,
		       unsigned long flags,
		       const u8 *in, size_t inlen, u8 *out, size_t outlen);

int sc_pkcs15_compute_signature(struct sc_pkcs15_card *p15card,
				const struct sc_pkcs15_object *prkey_obj,
				unsigned long alg_flags, const u8 *in,
				size_t inlen, u8 *out, size_t outlen);

int sc_pkcs15_read_pubkey(struct sc_pkcs15_card *card,
			const struct sc_pkcs15_object *obj,
			struct sc_pkcs15_pubkey **out);
int sc_pkcs15_decode_pubkey_rsa(struct sc_context *ctx,
	       		struct sc_pkcs15_pubkey_rsa *pubkey,
			const u8 *, size_t);
int sc_pkcs15_encode_pubkey_rsa(struct sc_context *,
			struct sc_pkcs15_pubkey_rsa *, u8 **, size_t *);
int sc_pkcs15_decode_pubkey_dsa(struct sc_context *ctx,
	       		struct sc_pkcs15_pubkey_dsa *pubkey,
			const u8 *, size_t);
int sc_pkcs15_encode_pubkey_dsa(struct sc_context *,
			struct sc_pkcs15_pubkey_dsa *, u8 **, size_t *);
int sc_pkcs15_decode_pubkey(struct sc_context *,
	       		struct sc_pkcs15_pubkey *, const u8 *, size_t);
int sc_pkcs15_encode_pubkey(struct sc_context *,
			struct sc_pkcs15_pubkey *, u8 **, size_t *);
void sc_pkcs15_erase_pubkey(struct sc_pkcs15_pubkey *pubkey);
void sc_pkcs15_free_pubkey(struct sc_pkcs15_pubkey *pubkey);

int sc_pkcs15_read_prkey(struct sc_pkcs15_card *card,
			const struct sc_pkcs15_object *obj,
			const char *passphrase,
			struct sc_pkcs15_prkey **out);
int sc_pkcs15_decode_prkey(struct sc_context *,
			struct sc_pkcs15_prkey *,
			const u8 *, size_t);
int sc_pkcs15_encode_prkey(struct sc_context *,
			struct sc_pkcs15_prkey *,
			u8 **, size_t *);
void sc_pkcs15_erase_prkey(struct sc_pkcs15_prkey *prkey);
void sc_pkcs15_free_prkey(struct sc_pkcs15_prkey *prkey);

int sc_pkcs15_read_data_object(struct sc_pkcs15_card *p15card,
			       const struct sc_pkcs15_data_info *info,
			       struct sc_pkcs15_data **data_object_out);
int sc_pkcs15_find_data_object_by_id(struct sc_pkcs15_card *p15card,
				     const struct sc_pkcs15_id *id,
				     struct sc_pkcs15_object **out);
void sc_pkcs15_free_data_object(struct sc_pkcs15_data *data_object);

int sc_pkcs15_read_certificate(struct sc_pkcs15_card *card,
			       const struct sc_pkcs15_cert_info *info,
			       struct sc_pkcs15_cert **cert);
void sc_pkcs15_free_certificate(struct sc_pkcs15_cert *cert);
int sc_pkcs15_find_cert_by_id(struct sc_pkcs15_card *card,
			      const struct sc_pkcs15_id *id,
			      struct sc_pkcs15_object **out);
/* sc_pkcs15_create_cdf:  Creates a new certificate DF on a card pointed
 * by <card>.  Information about the file, such as the file ID, is read
 * from <file>.  <certs> has to be NULL-terminated. */
int sc_pkcs15_create_cdf(struct sc_pkcs15_card *card,
			 struct sc_file *file,
			 const struct sc_pkcs15_cert_info **certs);
int sc_pkcs15_create(struct sc_pkcs15_card *p15card, struct sc_card *card);

int sc_pkcs15_find_prkey_by_id(struct sc_pkcs15_card *card,
			       const struct sc_pkcs15_id *id,
			       struct sc_pkcs15_object **out);
int sc_pkcs15_find_prkey_by_id_usage(struct sc_pkcs15_card *card,
			       const struct sc_pkcs15_id *id,
			       unsigned int usage,
			       struct sc_pkcs15_object **out);
int sc_pkcs15_find_pubkey_by_id(struct sc_pkcs15_card *card,
			       const struct sc_pkcs15_id *id,
			       struct sc_pkcs15_object **out);

int sc_pkcs15_verify_pin(struct sc_pkcs15_card *card,
			 struct sc_pkcs15_pin_info *pin,
			 const u8 *pincode, size_t pinlen);
int sc_pkcs15_change_pin(struct sc_pkcs15_card *card,
			 struct sc_pkcs15_pin_info *pin,
			 const u8 *oldpincode, size_t oldpinlen,
			 const u8 *newpincode, size_t newpinlen);
int sc_pkcs15_unblock_pin(struct sc_pkcs15_card *card,
			 struct sc_pkcs15_pin_info *pin,
			 const u8 *puk, size_t puklen,
			 const u8 *newpin, size_t newpinlen);
int sc_pkcs15_find_pin_by_auth_id(struct sc_pkcs15_card *card,
				  const struct sc_pkcs15_id *id,
				  struct sc_pkcs15_object **out);
int sc_pkcs15_find_pin_by_reference(struct sc_pkcs15_card *card,
				    int reference,
				    struct sc_pkcs15_object **out);
int sc_pkcs15_find_so_pin(struct sc_pkcs15_card *card,
			struct sc_pkcs15_object **out);

int sc_pkcs15_encode_dir(struct sc_context *ctx,
			struct sc_pkcs15_card *card,
			u8 **buf, size_t *buflen);
int sc_pkcs15_encode_tokeninfo(struct sc_context *ctx,
			struct sc_pkcs15_card *card,
			u8 **buf, size_t *buflen);
int sc_pkcs15_encode_odf(struct sc_context *ctx,
			struct sc_pkcs15_card *card,
			u8 **buf, size_t *buflen);
int sc_pkcs15_encode_df(struct sc_context *ctx,
			struct sc_pkcs15_card *p15card,
			struct sc_pkcs15_df *df,
			u8 **buf, size_t *bufsize);
int sc_pkcs15_encode_cdf_entry(struct sc_context *ctx,
			const struct sc_pkcs15_object *obj, u8 **buf,
			size_t *bufsize);
int sc_pkcs15_encode_prkdf_entry(struct sc_context *ctx,
			const struct sc_pkcs15_object *obj, u8 **buf,
			size_t *bufsize);
int sc_pkcs15_encode_pukdf_entry(struct sc_context *ctx,
			const struct sc_pkcs15_object *obj, u8 **buf,
			size_t *bufsize);
int sc_pkcs15_encode_dodf_entry(struct sc_context *ctx,
			const struct sc_pkcs15_object *obj, u8 **buf,
			size_t *bufsize);
int sc_pkcs15_encode_aodf_entry(struct sc_context *ctx,
			const struct sc_pkcs15_object *obj, u8 **buf,
			size_t *bufsize);

int sc_pkcs15_parse_df(struct sc_pkcs15_card *p15card,
		       struct sc_pkcs15_df *df);
int sc_pkcs15_read_df(struct sc_pkcs15_card *p15card,
		      struct sc_pkcs15_df *df);
int sc_pkcs15_decode_cdf_entry(struct sc_pkcs15_card *p15card,
			       struct sc_pkcs15_object *obj,
			       const u8 **buf, size_t *bufsize);
int sc_pkcs15_decode_dodf_entry(struct sc_pkcs15_card *p15card,
			       struct sc_pkcs15_object *obj,
			       const u8 **buf, size_t *bufsize);
int sc_pkcs15_decode_aodf_entry(struct sc_pkcs15_card *p15card,
			        struct sc_pkcs15_object *obj,
			        const u8 **buf, size_t *bufsize);
int sc_pkcs15_decode_prkdf_entry(struct sc_pkcs15_card *p15card,
				 struct sc_pkcs15_object *obj,
				 const u8 **buf, size_t *bufsize);
int sc_pkcs15_decode_pukdf_entry(struct sc_pkcs15_card *p15card,
				 struct sc_pkcs15_object *obj,
				 const u8 **buf, size_t *bufsize);

int sc_pkcs15_decode_enveloped_data(struct sc_context *ctx,
				    struct sc_pkcs15_enveloped_data *result,
				    const u8 *buf, size_t buflen);
int sc_pkcs15_encode_enveloped_data(struct sc_context *ctx,
				    struct sc_pkcs15_enveloped_data *data,
				    u8 **buf, size_t *buflen);

int sc_pkcs15_add_object(struct sc_pkcs15_card *p15card,
			 struct sc_pkcs15_object *obj);
void sc_pkcs15_remove_object(struct sc_pkcs15_card *p15card,
			     struct sc_pkcs15_object *obj);
int sc_pkcs15_add_df(struct sc_pkcs15_card *p15card,
		     int type, const sc_path_t *path,
		     const struct sc_file *file);
void sc_pkcs15_remove_df(struct sc_pkcs15_card *p15card,
			 struct sc_pkcs15_df *df);

/* File content wrapping */
int sc_pkcs15_wrap_data(struct sc_context *ctx,
			const char *passphrase,
			const u8 *in, size_t in_len,
			u8 **out, size_t *out_len);
int sc_pkcs15_unwrap_data(struct sc_context *ctx,
			  const char *passphrase,
			  const u8 *in, size_t in_len,
			  u8 **out, size_t *out_len);

/* Generic file i/o */
int sc_pkcs15_read_file(struct sc_pkcs15_card *p15card,
			const struct sc_path *path,
			u8 **buf, size_t *buflen,
			struct sc_file **file_out);
/* Idem but with data buffer already allocated */
int sc_pkcs15_read_file2(struct sc_pkcs15_card *p15card,
			const struct sc_path *path,
			u8 *buf, size_t *buflen,
			struct sc_file **file_out);

/* Caching functions */
#define ACTION_CACHE     1
int sc_pkcs15_read_cached_file(struct sc_pkcs15_card *p15card,
                               const struct sc_path *path, int *action,
                               u8 **buf, size_t *bufsize);
int sc_pkcs15_cache_file(struct sc_pkcs15_card *p15card,
			 const struct sc_path *path,
			 const u8 *buf, size_t bufsize);
int sc_pkcs15_cache_clear(struct sc_pkcs15_card *p15card);

/* PKCS #15 ID handling functions */
int sc_pkcs15_compare_id(const struct sc_pkcs15_id *id1,
			 const struct sc_pkcs15_id *id2);
void sc_pkcs15_print_id(const struct sc_pkcs15_id *id);
void sc_pkcs15_format_id(const char *id_in, struct sc_pkcs15_id *id_out);
int sc_pkcs15_hex_string_to_id(const char *in, struct sc_pkcs15_id *out);

#ifdef  __cplusplus
}
#endif

#endif