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/**
* @file
* Misc PGP helper routines
*
* @authors
* Copyright (C) 2017 Pietro Cerutti <gahr@gahr.ch>
* Copyright (C) 2017-2024 Richard Russon <rich@flatcap.org>
*
* @copyright
* This program 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.
*
* This program 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef MUTT_NCRYPT_PGPLIB_H
#define MUTT_NCRYPT_PGPLIB_H
#include <stdbool.h>
#include <time.h>
#include "mutt/lib.h"
#include "lib.h"
/**
* struct PgpUid - PGP User ID
*/
struct PgpUid
{
char *addr;
short trust;
int flags;
struct PgpKeyInfo *parent; ///< Parent key
struct PgpUid *next; ///< Linked list
};
ARRAY_HEAD(PgpUidArray, struct PgpUid *);
/**
* struct PgpKeyInfo - Information about a PGP key
*/
struct PgpKeyInfo
{
char *keyid;
char *fingerprint;
struct PgpUid *address;
KeyFlags flags;
short keylen;
time_t gen_time;
int numalg;
const char *algorithm;
struct PgpKeyInfo *parent;
struct PgpKeyInfo *next;
};
/**
* ExpandoDataPgpKey - Expando UIDs for PGP Keys
*
* @sa ED_PGP_KEY, ExpandoDomain
*/
enum ExpandoDataPgpKey
{
ED_PGK_DATE = 1, ///< PgpKeyInfo.gen_time
ED_PGK_KEY_ALGORITHM, ///< PgpKeyInfo.algorithm
ED_PGK_KEY_CAPABILITIES, ///< PgpKeyInfo.flags, pgp_key_abilities()
ED_PGK_KEY_FINGERPRINT, ///< PgpKeyInfo.fingerprint
ED_PGK_KEY_FLAGS, ///< PgpKeyInfo.kflags, pgp_flags()
ED_PGK_KEY_ID, ///< PgpKeyInfo, pgp_this_keyid()
ED_PGK_KEY_LENGTH, ///< PgpKeyInfo.keylen
ED_PGK_PKEY_ALGORITHM, ///< pgp_principal_key(), PgpKeyInfo.algorithm
ED_PGK_PKEY_CAPABILITIES, ///< pgp_principal_key(), PgpKeyInfo.flags, pgp_key_abilities()
ED_PGK_PKEY_FINGERPRINT, ///< pgp_principal_key(), PgpKeyInfo.fingerprint
ED_PGK_PKEY_FLAGS, ///< pgp_principal_key(), PgpKeyInfo.kflags, pgp_flags()
ED_PGK_PKEY_ID, ///< pgp_principal_key(), PgpKeyInfo, pgp_this_keyid()
ED_PGK_PKEY_LENGTH, ///< pgp_principal_key(), PgpKeyInfo.keylen
ED_PGK_PROTOCOL, ///< PgpKeyInfo
};
const char *pgp_pkalgbytype(unsigned char type);
struct PgpUid *pgp_copy_uids(struct PgpUid *up, struct PgpKeyInfo *parent);
bool pgp_canencrypt(unsigned char type);
bool pgp_cansign(unsigned char type);
void pgp_key_free(struct PgpKeyInfo **kpp);
struct PgpKeyInfo *pgp_remove_key(struct PgpKeyInfo **klist, struct PgpKeyInfo *key);
struct PgpKeyInfo *pgp_keyinfo_new(void);
#endif /* MUTT_NCRYPT_PGPLIB_H */
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