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47 Commits

Author SHA1 Message Date
Peter Williams
3da4ffc5aa Merge 2018-11-01 21:33:51 +11:00
Denys Smirnov
84284c88ec security: add missing license headers, more documentation 2018-10-08 01:04:56 +03:00
Denys Smirnov
7bd4ba688d core: split crypt filter methods into a separate package 2018-10-08 00:18:18 +03:00
Denys Smirnov
42df346e69 core: split security handlers into a separate package 2018-10-08 00:18:18 +03:00
Denys Smirnov
68d20968d3 core: move encryption dictionary encoder and decoder to it's own type 2018-10-08 00:18:18 +03:00
Denys Smirnov
1c19ba9e96 core: decouple security handlers with different revisions from PdfCrypt 2018-10-08 00:18:18 +03:00
Denys Smirnov
7e9f3dd7e2 core: unexport remaining PdfCrypt methods 2018-10-08 00:18:18 +03:00
Denys Smirnov
fd9b3746de core: unexport remaining PdfCrypt fields 2018-10-08 00:18:18 +03:00
Denys Smirnov
bccaa87cdc core: refactor encryption and decryption types 2018-10-08 00:18:18 +03:00
Denys Smirnov
b5288e7ddc core: change permissions type to a bitmask 2018-10-08 00:18:18 +03:00
Denys Smirnov
ef64bef191 core: permissions field is uint32 according to the spec 2018-10-08 00:18:18 +03:00
Denys Smirnov
418b99b4d8 core: detect old copies of Encrypt dictionary; fix #215 2018-09-29 00:16:57 +03:00
Denys Smirnov
d73bd8d1d2 core: correctly handle encryption of xref streams and trailer fields 2018-09-26 04:54:00 +03:00
Gunnsteinn Hall
6cafab4121 Merge branch 'master' into v3 2018-09-25 23:37:11 +00:00
Denys Smirnov
760f58b954 core: add doc comments for CFMs 2018-09-26 02:16:17 +03:00
Denys Smirnov
4b01f8f6ae update code after merge with master 2018-09-26 01:46:13 +03:00
Denys Smirnov
acd4308d56 Merge branch 'refactor' into v3 
# Conflicts:
#	pdf/core/crypt.go
#	pdf/model/writer.go
 2018-09-26 01:08:19 +03:00
Denys Smirnov
b3c45a550a core: refactor crypt filter selection code 2018-09-26 00:52:05 +03:00
Denys Smirnov
be03592b2a core: move CFM to separate structs that implement a common interface 2018-09-26 00:52:05 +03:00
Denys Smirnov
7b2f6a6aab core: do not decrypt XRef streams and the Encrypt dictionary; fix #205 2018-09-25 01:48:29 +03:00
Denys Smirnov
8450ebcef6 core: use type switch instead of if statements in encode and decode 2018-09-20 02:00:01 +03:00
Denys Smirnov
b7dcbc22de core: fix standard crypt filter name; resolves issues with Adobe Reader 2018-09-19 23:48:50 +03:00
Denys Smirnov
eac1e899dc core: allow to write documents with AES encryption 2018-09-19 06:02:15 +03:00
Denys Smirnov
839f9ea3bc core: fix padding for AESv3 2018-09-19 06:01:29 +03:00
Denys Smirnov
d4b2490ea3 core: implement encryption algorithms 8-10; add tests for alg 8-13 2018-09-19 03:33:59 +03:00
Denys Smirnov
7fb4c91137 core: do not overwrite Perms then validating it 2018-09-19 03:12:49 +03:00
Denys Smirnov
e18e4b502c core: move zero iv allocation to a separate function 2018-09-19 02:44:26 +03:00
Denys Smirnov
1371f91098 core: check metadata encryption flag in alg13 2018-09-19 02:43:32 +03:00
Denys Smirnov
c7cfde7c1f core: move test data, add docs and link to the specification 2018-09-17 17:36:31 +03:00
Denys Smirnov
c08a13c234 core: optimize allocations for hash used in R=6 2018-09-16 17:10:04 +03:00
Denys Smirnov
8f4f1804b0 core: implement decoding of AESv3; resolves #30 2018-09-16 04:13:24 +03:00
Denys Smirnov
6510d0a853 core: algorithms 2a and 13 (decode file key and validate permissions) 2018-09-16 02:48:08 +03:00
Denys Smirnov
b76c8a56c4 core: implement algorithm 11 and 12 (password check for R=5 and R=6) 2018-09-16 00:34:13 +03:00
Gunnsteinn Hall
5b1b9bd504 PdfObjectArray change to struct and receivers added Elements, Get, Set, Len. Fixes to resulting broken code. 2018-07-15 17:52:53 +00:00
Gunnsteinn Hall
14ee80e1fe Preserve and allow output of hexadecimal strings 
Refactored PdfObjectString into a struct with bool flag for hex.  Fixed any code broken by the change.
Unexported non-essential functions for crypto (not used by model).  Can unexport more later or refactor to internal package.
 2018-07-14 02:25:29 +00:00
Gunnsteinn Hall
ad47c116aa Address core golint recommendations in crypt, io 2017-08-03 15:13:40 +00:00
Gunnsteinn Hall
7f83a4ea2f Add bounds check in crypt, parser. Avoid division by zero. 2017-07-23 20:20:05 +00:00
Gunnsteinn Hall
3639b5c279 Add check for ID array length 2017-07-23 12:30:21 +00:00
Gunnsteinn Hall
71807ecfa4 Exposed a reader function to check access rights. Fixed incorrect bit name for AccessPermissions (LimitPrintQuality->FullPrintQuality). Fix in owner password authentication. Closes #51. 2017-07-12 09:48:16 +00:00
Gunnsteinn Hall
10c3be8c95 Change PdfObjectDictionary from map to struct and introduce ordered keys. Syntax change. Fixes all around to accommodate changes. Also fixes in test cases. Closes #56. 2017-07-08 21:04:13 +00:00
Gunnsteinn Hall
d25fa23fb0 Fix issue with unremoved AES decrypted padding bytes #44 2017-04-24 21:36:07 +00:00
Gunnsteinn Hall
90caacec66 Improved crypto handling for encrypt dicts with references 2017-03-29 15:54:50 +00:00
Gunnsteinn Hall
6516adddc4 Cleaning up logging, more debug -> trace log level 2017-03-02 18:06:32 +00:00
Gunnsteinn Hall
a0a9fa6289 Fix for invalid crypto lengths (given in bits rather than bytes) for compatibility 2016-12-02 22:32:13 +00:00
Gunnsteinn Hall
1564f8ab06 Updates and fixes from master merged in 2016-12-02 15:17:19 +00:00
Gunnsteinn Hall
f358b3e26f Refactoring in progress 
Currently compiles with tests, but not fully functional yet.
 2016-09-09 15:02:52 +00:00
Gunnsteinn Hall
19fd98d667 Refactoring into core and model. (in process) 
As the package was growing large, there is a need to clean up.  Testing
to refactor into a core (basic pdf parsing and primitive objects) and a
higher level model package.
 2016-09-08 17:53:45 +00:00