/* This is dvipdfmx, an eXtended version of dvipdfm by Mark A. Wicks. Copyright (C) 2007-2018 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 "tectonic_bridge_core.h" #include #include "dpx-pdfdoc.h" #include "dpx-pdfobj.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_ */