75 lines
3.1 KiB
C
75 lines
3.1 KiB
C
#ifndef MUPDF_PDF_CRYPT_H
|
|
#define MUPDF_PDF_CRYPT_H
|
|
|
|
enum
|
|
{
|
|
PDF_ENCRYPT_KEEP,
|
|
PDF_ENCRYPT_NONE,
|
|
PDF_ENCRYPT_RC4_40,
|
|
PDF_ENCRYPT_RC4_128,
|
|
PDF_ENCRYPT_AES_128,
|
|
PDF_ENCRYPT_AES_256,
|
|
PDF_ENCRYPT_UNKNOWN
|
|
};
|
|
|
|
pdf_crypt *pdf_new_crypt(fz_context *ctx, pdf_obj *enc, pdf_obj *id);
|
|
pdf_crypt *pdf_new_encrypt(fz_context *ctx, const char *opwd_utf8, const char *upwd_utf8, pdf_obj *id, int permissions, int algorithm);
|
|
void pdf_drop_crypt(fz_context *ctx, pdf_crypt *crypt);
|
|
|
|
void pdf_crypt_obj(fz_context *ctx, pdf_crypt *crypt, pdf_obj *obj, int num, int gen);
|
|
void pdf_crypt_buffer(fz_context *ctx, pdf_crypt *crypt, fz_buffer *buf, int num, int gen);
|
|
fz_stream *pdf_open_crypt(fz_context *ctx, fz_stream *chain, pdf_crypt *crypt, int num, int gen);
|
|
fz_stream *pdf_open_crypt_with_filter(fz_context *ctx, fz_stream *chain, pdf_crypt *crypt, pdf_obj *name, int num, int gen);
|
|
|
|
int pdf_crypt_version(fz_context *ctx, pdf_crypt *crypt);
|
|
int pdf_crypt_revision(fz_context *ctx, pdf_crypt *crypt);
|
|
char *pdf_crypt_method(fz_context *ctx, pdf_crypt *crypt);
|
|
int pdf_crypt_length(fz_context *ctx, pdf_crypt *crypt);
|
|
int pdf_crypt_permissions(fz_context *ctx, pdf_crypt *crypt);
|
|
int pdf_crypt_encrypt_metadata(fz_context *ctx, pdf_crypt *crypt);
|
|
unsigned char *pdf_crypt_owner_password(fz_context *ctx, pdf_crypt *crypt);
|
|
unsigned char *pdf_crypt_user_password(fz_context *ctx, pdf_crypt *crypt);
|
|
unsigned char *pdf_crypt_owner_encryption(fz_context *ctx, pdf_crypt *crypt);
|
|
unsigned char *pdf_crypt_user_encryption(fz_context *ctx, pdf_crypt *crypt);
|
|
unsigned char *pdf_crypt_permissions_encryption(fz_context *ctx, pdf_crypt *crypt);
|
|
unsigned char *pdf_crypt_key(fz_context *ctx, pdf_crypt *crypt);
|
|
|
|
void pdf_print_crypt(fz_context *ctx, fz_output *out, pdf_crypt *crypt);
|
|
|
|
void pdf_write_digest(fz_context *ctx, fz_output *out, pdf_obj *byte_range, int digest_offset, int digest_length, pdf_pkcs7_signer *signer);
|
|
|
|
/*
|
|
User access permissions from PDF reference.
|
|
*/
|
|
enum
|
|
{
|
|
PDF_PERM_PRINT = 1 << 2,
|
|
PDF_PERM_MODIFY = 1 << 3,
|
|
PDF_PERM_COPY = 1 << 4,
|
|
PDF_PERM_ANNOTATE = 1 << 5,
|
|
PDF_PERM_FORM = 1 << 8,
|
|
PDF_PERM_ACCESSIBILITY = 1 << 9, /* deprecated in pdf 2.0 (this permission is always granted) */
|
|
PDF_PERM_ASSEMBLE = 1 << 10,
|
|
PDF_PERM_PRINT_HQ = 1 << 11,
|
|
};
|
|
|
|
int pdf_document_permissions(fz_context *ctx, pdf_document *doc);
|
|
|
|
int pdf_signature_byte_range(fz_context *ctx, pdf_document *doc, pdf_obj *signature, fz_range *byte_range);
|
|
|
|
fz_stream *pdf_signature_hash_bytes(fz_context *ctx, pdf_document *doc, pdf_obj *signature);
|
|
|
|
int pdf_signature_incremental_change_since_signing(fz_context *ctx, pdf_document *doc, pdf_obj *signature);
|
|
|
|
int pdf_signature_contents(fz_context *ctx, pdf_document *doc, pdf_obj *signature, char **contents);
|
|
|
|
void pdf_sign_signature(fz_context *ctx, pdf_document *doc, pdf_widget *widget, pdf_pkcs7_signer *signer);
|
|
|
|
void pdf_clear_signature(fz_context *ctx, pdf_document *doc, pdf_widget *widget);
|
|
|
|
void pdf_encrypt_data(fz_context *ctx, pdf_crypt *crypt, int num, int gen, void (*fmt_str_out)(fz_context *, void *, const unsigned char *, int), void *arg, const unsigned char *s, int n);
|
|
|
|
int pdf_encrypted_len(fz_context *ctx, pdf_crypt *crypt, int num, int gen, int len);
|
|
|
|
#endif
|