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/*
This is dvipdfmx, an eXtended version of dvipdfm by Mark A. Wicks.
Copyright (C) 2002-2020 by Jin-Hwan Cho and Shunsaku Hirata,
the dvipdfmx project team.
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, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#ifndef _PDFENCRYPT_H_
#define _PDFENCRYPT_H_
#include "pdfobj.h"
#include "pdfdoc.h"
#define MAX_PWD_LEN 127
typedef struct pdf_sec pdf_sec;
extern pdf_sec *pdf_enc_init (const unsigned char *id,
int keybits, uint32_t permission,
const char *opasswd, const char *upasswd,
int use_aes, int encrypt_metadata);
extern void pdf_enc_close (pdf_sec **p_sec);
extern void pdf_enc_set_label (pdf_sec *p_sec, unsigned label);
extern void pdf_enc_set_generation (pdf_sec *p_sec, unsigned generation);
extern void pdf_encrypt_data (pdf_sec *p_sec, const unsigned char *plain, size_t plain_len,
unsigned char **cipher, size_t *cipher_len);
extern pdf_obj *pdf_enc_get_encrypt_dict (pdf_sec *p_sec);
extern pdf_obj *pdf_enc_get_extension_dict (pdf_sec *p_sec);
#endif /* _PDFENCRYPT_H_ */
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