8 * ``.totzdatetime()`` appeared in UTCTime and GeneralizedTime,
9 explicitly setting UTC timezone information.
10 Optional ``dateutils.tz`` library is required for that
16 * Drop Python 2.7 support. No ``six`` dependency anymore
22 * Fix previous release's style breaking in ASN.1 browser.
28 * Append offsets to tree elements in ASN.1 browser for ease of navigation.
34 * Trivial documentation fixes.
40 * Workability under Microsoft Windows OS should be restored: it has
41 different ``mmap`` constants and implementation, preventing
42 ``pyderasn`` importing
48 * **Incompatible** change: explicitly check that only naive datetime
49 objects are used for UTCTime and GeneralizedTime, raise an error
50 otherwise. Previously they silently ignored ``tzinfo``
56 * Strictly check that tag's long encoded form does not contain leading zero
58 * Strictly check that tag's long form is used in expected way for small values
65 * Proper strict alphabet validation of VisibleString
66 * VisibleString and IA5String also have ``allowable_chars`` property
67 * Fixed TeletexString, T61String use ``iso-8859-1`` encoding (instead of
68 ``ascii``), because they are 8-bit encodings
74 * Also print full TLVlen in ASN.1 browser
81 * Fix DEFINED BY pprinting when invoking as __main__ module
82 * Integer has ``tohex()`` for getting hexadecimal representation of its value
83 * ``hexdump()`` (``hexdump -C`` like output) and ``ascii_visualize()``
84 (visualize ASCII printable characters, like in ``hexdump -C``) pretty
85 printing functions appeared
86 * Experimental ASN.1 interactive terminal browser (``--browse`` and
88 You will need `urwid package <http://urwid.org/>`__ to use it
95 * SEQUENCE/SET fully performs default value existence validation in
96 evgen mode, by the cost of DEFAULTed value full decoding. That should
97 not be the problem, as DEFAULTs are relatively small in practice. Now
98 evgen mode has the same DER validation strictness as an ordinary one
105 * Restored workability of some command line options
106 * 2-pass DER encoding mode with very little memory footprint
119 * Fixed invalid behaviour where SET OF allowed multiple objects with the
120 same tag to be successfully decoded
121 * Fixed possibly invalid SET DER encoding where objects were not sorted
122 by tag, but by encoded representation
123 * ``Any`` does not allow empty data value now. Now it checks if it has
125 * ``SetOf`` is not treated as ready, if no value was set and minimum
126 bounds are greater than zero
127 * ``Any`` allows an ordinary ``Obj`` storing, without its forceful
128 encoded representation storage. That is required for CER encoding
129 mode, where we do not know in advance what encoding will be used
130 * ``ObjectIdentifier`` stores values as C unsigned long integer,
131 forbidding storage of huge integers, that must not be a problem in
133 * Initial support for so called ``evgen_mode``: event generation mode,
134 where no in-memory objects storing happens, giving ability to process
135 ASN.1 data without fully parsing it first. ``python -m pyderasn`` has
136 ``--evgen`` mode switcher
137 * Useful ``agg_octet_string`` that is able to streamingly decode string
138 from events of ``evgen_mode``, allowing strings retrieving without
139 copying them to memory first
140 * Initial experimental CER encoding mode, allowing streaming encoding of
141 the data directly to some writeable object
142 * Ability to use mmap-ed memoryviews to skip files loading to memory
143 * Ability to use memoryview as an input for \*Strings. If they are
144 mmap-ed, then you can encode any quantities of data streamingly
145 without copying to memory
151 * Fixed workability under Python 3.5. Previously only 2.7 and 3.6
158 * Python ``int()``'s accepts even more various non-decimal characters
159 than expected. Make validation fully strict in UTCTime and
160 GeneralizedTime, without relying on ``int()``
166 * UTCTime and GeneralizedTime allowed values to have plus sign in them,
167 passing ``int()`` check successfully. Prohibit that incorrect behaviour
168 * UTCTime and GeneralizedTime BER decoding support
169 * Faster UTCTime and GeneralizedTime decoding, and slightly better
171 * Workability under Cython
172 * Explicitly Check that all ObjectIdentifier arcs are non-negative
178 * ``.copy()`` method removed: ``copy.copy()`` is preferred way to copy
180 * Copies made previously with ``.copy()`` lacked ``.defined`` field,
182 * All objects are friendly to ``pickle`` libraries
183 * PrintableString has ``allow_asterisk`` and ``allow_ampersand``
185 * ``.hexencode()``, ``.hexdecode()`` and ``.hexdecod()`` methods
186 appeared, working with hexadecimal encoded data
192 * Convenient ``.decod()`` method, that raises if tail is not empty
193 * Control characters (like newlines) of text fields in pprinted output
195 * Ability to allow asterisk and ampersand characters
196 (``allow_asterisk``, ``allow_ampersand`` kwargs) in PrintableString,
197 that unfortunately could be met in X.509 certificates
203 * PEP-396 compatible module's ``__version__``
209 * Do not shadow underlying DecodeError during decoding of optional
216 * Forbid any later GNU GPL version autousage (project's licence now is
218 * Fix ``defines_by_path`` context option usage example
224 * Fix fallbacked ``colored()`` function workability,
225 if no ``termcolor`` is installed
231 * Fix empty ``--oids`` workability
237 * Ability to specify multiple OID mappings for pprinted output
238 (``oids`` keyword argument is renamed to ``oid_maps``)
244 * Minor decode speed improvements
245 * Much faster UTCTime/GeneralizedTime decoders
246 * Stricter UTCTime/GeneralizedTime DER encoding check: trailing zeroes
248 * Valid DER encoding of GeneralizedTime with microseconds: no trailing
255 * ObjectIdentifier has ``ber_encoded`` set to True, if non-normalized
257 * Preserve BER-related attributes during ``copy()``
263 * Added `COMPLI <https://github.com/YuryStrozhevsky/asn1-test-suite>`__
264 ASN.1:2008 test suite. PyDERASN passes it (except for REAL values),
265 but it is more strict sometimes and aimed to be compliant with X.690-201508
266 * Check for arc values normalization in ObjectIdentifier.
267 Forbid non-normalized in DER encoding
273 * ``ctx`` parameter can be safely used in .decode() and won't be muted
274 * PP nametuple contains reference to the ASN1Obj itself
275 * ``colonize_hex`` function useful for pretty printing
276 * Integer values are also pretty printed in hexadecimal form
282 * All errors are inherited from ASN1Error class
283 * NumericString/PrintableString has ``allowable_chars`` property holding
284 all allowed characters
290 * Fix NumericString: space is allowed character
291 * Strict PrintableString sanitizing
297 * Removed ``lenindef``, ``ber_encoded`` attributes from the Choice --
298 they must be taken from underlying value, as Choice does not have its
300 * Do not yield extra EOC PP for Any, having indefinite length encoding
301 and containing autodecoded DEFINED BY value
307 * ``bered`` attribute, meaning if object has BER-specific encoding, is
308 renamed to ``ber_encoded``
309 * ``bered`` attribute is replace with property showing if any of
310 underlying values are BER-encoded. If value has length indefinite
311 encoded explicit tag, value, if value contains BER-related encoding,
312 or if it contains other objects that are ``bered``, then it is ``bered``
318 * Default value is checked also for Sets, not for Sequences only
319 * **Incompatible** change: defaulted values in Sequence/Set are always
320 strictly checked, unless ``allow_default_values`` context option is
321 set. ``strict_default_existence`` option disappeared
322 * Strict Set/Set Of's values ordering check
328 * Additional encoding validness check: explicit tag must contain exactly
329 one object inside. Throw DecodeError otherwise
330 * ``allow_expl_oob`` context and command-line options allow skipping of
337 * DecodeError's decode paths are separated with ``:``, instead of ``.``,
338 because of colliding with dots in OIDs
339 * Ability to print element decode paths with ``--print-decode-path``
340 command line option (and corresponding keyword argument)
341 * Ability to print tree's branch specified with ``--decode-path-only``
347 * Fix possible uncaught TypeError in Py2 with zero bytes inside the value
348 * Fix SequenceOf/SetOf raising BoundsError instead of DecodeError
354 * Fix uncaught UTCTime/GeneralizedTime decode error when dealing with
355 non ASCII-encoded values
361 * Fix long-standing bug with explicitly tagged objects inside the
362 Choice. If Choice had explicitly tagged value, then its ``.tlvlen``
363 reports the size without taking value's explicit tag in advance
364 * Add ``.fulllen`` and ``.fulloffset`` properties for all objects
370 * SEQUENCE's values are printed with field's name. Previously there was
371 the following output::
373 AlgorithmIdentifier SEQUENCE[OBJECT IDENTIFIER 1.3.14.3.2.26, [UNIV 5] ANY 0500 OPTIONAL]
377 AlgorithmIdentifier SEQUENCE[algorithm: OBJECT IDENTIFIER 1.3.14.3.2.26; parameters: [UNIV 5] ANY 0500 OPTIONAL]
378 * Fixed EOC (Unicode character) repr printing issues under Python2
384 BER's EOC is explicitly shown during pprinting. Following notation::
386 15-2 [0,0,1576]-4 . content: [0] EXPLICIT [UNIV 16] ANY
390 15-2∞ [0,0,1576]∞ . content: [0] EXPLICIT [UNIV 16] ANY
392 1587 [1,1, 0] . content: BER EOC
393 1589 [1,1, 0] . content: EXPLICIT BER EOC
399 * BER decoding support
400 * BitString's ''H notation support
401 * ``termcolor`` package is included in the tarball
407 * Ability to set values during Sequence initialization
413 * Fix TagMismatch exception completeness during Choice and Set decoding.
414 Previously we will loose offset and decode_path information about
415 concrete TagMismatched entity
421 * Strict NumericString's value sanitation
422 * Invalid encoding in string types will raise ``DecodeError`` exception,
423 instead of ``Unicode*Error``
424 * Fixed DecodePathDefBy workability with Python 2.x
430 * Fix nasty BitString decoding bug: it could fail when data follows
431 encoded BitString value. There weren't any problems when BitString is
432 at the end of Sequence
438 * Slightly corrected colours, now visible on white background
444 * Fix bug related to DecodeError showing with DecodePathDefBy entities
445 * Respect ``NO_COLOR`` environment variable
451 * :py:func:`pyderasn.decode_path_defby` is replaced with
452 :py:class:`pyderasn.DecodePathDefBy`
453 * Ability to turn colourized terminal output by calling
454 ``pprint(..., with_colours=True)``. You will need
455 `termcolor package <https://pypi.org/project/termcolor/>`__
461 * Fixed invalid offset calculation when dealing with DEFINED BY objects
468 * BIT STRINGs can also be :ref:`DEFINED BY <definedby>`
469 * Decoding process can be governed with optional :ref:`ctx <ctx>`
470 keyword argument to ``decode()`` method
471 * :ref:`defines_by_path <defines_by_path_ctx>` option is now
472 :ref:`decode context <ctx>` option, not a keyword argument
473 * Ability to do ``strict validation``
474 of defaulted values met in sequence, raising an exception
480 Ability to skip specified number of bytes (``--skip``) in command line
487 * Generic decoder's schema and pretty printer
488 (:py:func:`pyderasn.generic_decoder`) can be used in libraries
489 * Ability to specify :ref:`defines_by_path <defines_by_path_ctx>`
490 during command line invocation
496 Ability to automatically decode :ref:`DEFINED BY <definedby>` fields
503 Removed ``__lt__``/``__eq__`` from base class, as pylint likes it.
509 Full rich comparison operators added.
516 Trivial README addition.