/usr/include/libotr/privkey-t.h is in libotr2-dev 3.2.0-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 | /*
 *  Off-the-Record Messaging library
 *  Copyright (C) 2004-2008  Ian Goldberg, Chris Alexander, Nikita Borisov
 *                           <otr@cypherpunks.ca>
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of version 2.1 of the GNU Lesser General
 *  Public License as published by the Free Software Foundation.
 *
 *  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 __PRIVKEY_T_H__
#define __PRIVKEY_T_H__
#include <gcrypt.h>
typedef struct s_OtrlPrivKey {
    struct s_OtrlPrivKey *next;
    struct s_OtrlPrivKey **tous;
    char *accountname;
    char *protocol;
    unsigned short pubkey_type;
    gcry_sexp_t privkey;
    unsigned char *pubkey_data;
    size_t pubkey_datalen;
} OtrlPrivKey;
#define OTRL_PUBKEY_TYPE_DSA 0x0000
#endif
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