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Changes:
Revision 0.1.9, released 28-09-2015
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- Wheel distribution format now supported.
- Extensions added to text files, CVS attic flushed.
- Fix to make uninitilaized pyasn1 objects failing properly on hash().
- Fix to ObjectIdentifier initialization from unicode string.
- Fix to CER/DER Boolean decoder - fail on non single-octet payload.
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Problems found locating distfiles:
Package f-prot-antivirus6-fs-bin: missing distfile fp-NetBSD.x86.32-fs-6.2.3.tar.gz
Package f-prot-antivirus6-ws-bin: missing distfile fp-NetBSD.x86.32-ws-6.2.3.tar.gz
Package libidea: missing distfile libidea-0.8.2b.tar.gz
Package openssh: missing distfile openssh-7.1p1-hpn-20150822.diff.bz2
Package uvscan: missing distfile vlp4510e.tar.Z
Otherwise, existing SHA1 digests verified and found to be the same on
the machine holding the existing distfiles (morden). All existing
SHA1 digests retained for now as an audit trail.
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Revision 0.1.8
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- ObjectIdentifier codec fixed to work properly with arc 0 and arc 2 values.
- Explicit limit on ObjectIdentifier arc value size removed.
- Unicode initializer support added to OctetString type and derivatives.
- New prettyPrintType() abstract method implemented to base pyasn1 types
to facilitate encoding errors analisys.
- The __str__() method implemented to Tag, TagSet and TagMap classes to
ease encoding errors troubleshooting.
easing encoding errors
- Fix to SEQUENCE and SET types to give them their private componentTypes
collection (which is a NamedTypes object) so that they won't collide in
a MT execution environment.
- Missing T61String,ISO646String character types and ObjectDescriptor useful
type added.
- Distribute is gone, switched to setuptools completely.
- Missing NamedValues.__repr__() added.
- The base.NoValue() class, that indicates uninitialized ASN.1 object,
made public.
- The base.NoValue() class instances now support __repr__() what makes
possible to perform repr() on uninitialized pyasn1 types objects.
- When comparing ASN.1 types, by-tag and/or by-constraints matching
can now be performed with the isSuperTypeOf()/isSameTypeWith() optional
flags.
- Constructed types now verify their consistency by invoking
isSameTypeWith(matchTags=True, matchConstraints=False) and
isSuperTypeOf(matchTags=False, matchConstraints=True) for each of their
components rather than isSuperTypeOf() as it used to be. Constriants check
could be enforced to isSameTypeWith() with the strictConstraints=True
constructed classes attribute.
- Constructed types can now be initialized with new .setComponents() method
which accepts both var-args and keyword-args. Default repr() modified to
reflect this change.
- NamedTypes() and NamedValues() made comparable.
- Test coverage extended to cover pyasn1 types __repr__() function.
- The abs(Integer()) & abs(Real()) operation now returns respective pyasn1
type, not a Python type.
- More Python magic methods implementations added to Integer & Real classes
(e.g. __pos__, __neg__, __round__, __floor__, __ceil__, __trunc__)
- The Integer.__invert__ Python magic method implemented.
- The OctetString.__int__() and .__float__() magic methods implemented.
- Handle the case of null writer at Debug printer.
- BitString encoder/decoder performance improved.
- Built-in debugging is now based on Python logging module.
- Fix to NamedType.__repr__() to work properly.
- Fixes to __repr__() implementation of many built-in ASN.1 types to take into
account all of their initializers such as tagSet, subtypeSpec etc.
- String typed float initializer to REAL type now supported.
- Float typed mantissa initializer to REAL type for base 2 added.
- Encoding bases 8 and 16 support for REAL type binary encoder added.
- More strict CER/DER encoders added for GeneralizedTime and UTCTime types.
- Asn1Item.hasValue() added to easily distinguish initalized ASN.1 objects
from uninitialized ones (e.g. pure types).
- Fix to REAL type binary decoder to handle different bases and scale factor.
- Fix to TagSet.repr() to include [obsolete] baseTag information.
- Fix to broken REAL type decoding handling.
- Fix to BitString and OctetString decoders dealing with constructed
encoding -- it used to be possible to embed other types in substrate.
- Fix to end-of-octest sentinel handling:
* require strict two-zeros sentinel encoding
* recognize EOO sentinel only when explicitly requested by caller
of the decoder via allowEoo=True parameter (warning: API change)
- DER codec hardened not to tolerate indefinite length encoding/decoding.
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Revision 0.1.7
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- License updated to vanilla BSD 2-Clause to ease package use
(http://opensource.org/licenses/BSD-2-Clause).
- Test suite made discoverable by unittest/unittest2 discovery feature.
- Fix to decoder working on indefinite length substrate -- end-of-octets
marker is now detected by both tag and value. Otherwise zero values may
interfere with end-of-octets marker.
- Fix to decoder to fail in cases where tagFormat indicates inappropriate
format for the type (e.g. BOOLEAN is always PRIMITIVE, SET is always
CONSTRUCTED and OCTET STRING is either of the two)
- Fix to REAL type encoder to force primitive encoding form encoding.
- Fix to CHOICE decoder to handle explicitly tagged, indefinite length
mode encoding
- Fix to REAL type decoder to handle negative REAL values correctly. Test
case added.
Revision 0.1.6
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- The compact (valueless) way of encoding zero INTEGERs introduced in
0.1.5 seems to fail miserably as the world is filled with broken
BER decoders. So we had to back off the *encoder* for a while.
There's still the IntegerEncoder.supportCompactZero flag which
enables compact encoding form whenever it evaluates to True.
- Report package version on debugging code initialization.
Revision 0.1.5
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- Documentation updated and split into chapters to better match
web-site contents.
- Make prettyPrint() working for non-initialized pyasn1 data objects. It
used to throw an exception.
- Fix to encoder to produce empty-payload INTEGER values for zeros
- Fix to decoder to support empty-payload INTEGER and REAL values
- Fix to unit test suites imports to be able to run each from
their current directory
Revision 0.1.4
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- Built-in codec debugging facility added
- Added some more checks to ObjectIdentifier BER encoder catching
posible 2^8 overflow condition by two leading sub-OIDs
- Implementations overriding the AbstractDecoder.valueDecoder method
changed to return the rest of substrate behind the item being processed
rather than the unprocessed substrate within the item (which is usually
empty).
- Decoder's recursiveFlag feature generalized as a user callback function
which is passed an uninitialized object recovered from substrate and
its uninterpreted payload.
- Catch inappropriate substrate type passed to decoder.
- Expose tagMap/typeMap/Decoder objects at DER decoder to uniform API.
- Obsolete __init__.MajorVersionId replaced with __init__.__version__
which is now in-sync with distutils.
- Package classifiers updated.
- The __init__.py's made non-empty (rumors are that they may be optimized
out by package managers).
- Bail out gracefully whenever Python version is older than 2.4.
- Fix to Real codec exponent encoding (should be in 2's complement form),
some more test cases added.
- Fix in Boolean truth testing built-in methods
- Fix to substrate underrun error handling at ObjectIdentifier BER decoder
- Fix to BER Boolean decoder that allows other pre-computed
values besides 0 and 1
- Fix to leading 0x80 octet handling in DER/CER/DER ObjectIdentifier decoder.
See http://www.cosic.esat.kuleuven.be/publications/article-1432.pdf
Revision 0.1.3
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- Include class name into asn1 value constraint violation exception.
- Fix to OctetString.prettyOut() method that looses leading zero when
building hex string.
Revision 0.1.2
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- Fix to __long__() to actually return longs on py2k
- Fix to OctetString.__str__() workings of a non-initialized object.
- Fix to quote initializer of OctetString.__repr__()
- Minor fix towards ObjectIdentifier.prettyIn() reliability
- ObjectIdentifier.__str__() is aliased to prettyPrint()
- Exlicit repr() calls replaced with '%r'
Revision 0.1.1
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- Hex/bin string initializer to OctetString object reworked
(in a backward-incompatible manner)
- Fixed float() infinity compatibility issue (affects 2.5 and earlier)
- Fixed a bug/typo at Boolean CER encoder.
- Major overhawl for Python 2.4 -- 3.2 compatibility:
+ get rid of old-style types
+ drop string module usage
+ switch to rich comparation
+ drop explicit long integer type use
+ map()/filter() replaced with list comprehension
+ apply() replaced with */**args
+ switched to use 'key' sort() callback function
+ support both __nonzero__() and __bool__() methods
+ modified not to use py3k-incompatible exception syntax
+ getslice() operator fully replaced with getitem()
+ dictionary operations made 2K/3K compatible
+ base type for encoding substrate and OctetString-based types
is now 'bytes' when running py3k and 'str' otherwise
+ OctetString and derivatives now unicode compliant.
+ OctetString now supports two python-neutral getters: asOcts() & asInts()
+ print OctetString content in hex whenever it is not printable otherwise
+ in test suite, implicit relative import replaced with the absolute one
+ in test suite, string constants replaced with numerics
Revision 0.0.13
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- Fix to base10 normalization function that loops on univ.Real(0)
Revision 0.0.13b
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- ASN.1 Real type is now supported properly.
- Objects of Constructed types now support __setitem__()
- Set/Sequence objects can now be addressed by their field names (string index)
and position (integer index).
- Typo fix to ber.SetDecoder code that prevented guided decoding operation.
- Fix to explicitly tagged items decoding support.
- Fix to OctetString.prettyPrint() to better handle non-printable content.
- Fix to repr() workings of Choice objects.
Revision 0.0.13a
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- Major codec re-design.
- Documentation significantly improved.
- ASN.1 Any type is now supported.
- All example ASN.1 modules moved to separate pyasn1-modules package.
- Fix to initial sub-OID overflow condition detection an encoder.
- BitString initialization value verification improved.
- The Set/Sequence.getNameByPosition() method implemented.
- Fix to proper behaviour of PermittedAlphabetConstraint object.
- Fix to improper Boolean substrate handling at CER/DER decoders.
- Changes towards performance improvement:
+ all dict.has_key() & dict.get() invocations replaced with modern syntax
(this breaks compatibility with Python 2.1 and older).
+ tag and tagset caches introduced to decoder
+ decoder code improved to prevent unnecessary pyasn1 objects creation
+ allow disabling components verification when setting components to
structured types, this is used by decoder whilst running in guided mode.
+ BER decoder for integer values now looks up a small set of pre-computed
substrate values to save on decoding.
+ a few pre-computed values configured to ObjectIdentifier BER encoder.
+ ChoiceDecoder split-off SequenceOf one to save on unnecessary checks.
+ replace slow hasattr()/getattr() calls with isinstance() introspection.
+ track the number of initialized components of Constructed types to save
on default/optional components initialization.
+ added a shortcut ObjectIdentifier.asTuple() to be used instead of
__getitem__() in hotspots.
+ use Tag.asTuple() and pure integers at tag encoder.
+ introduce and use in decoder the baseTagSet attribute of the built-in
ASN.1 types.
Revision 0.0.12a
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- The individual tag/length/value processing methods of
encoder.AbstractItemEncoder renamed (leading underscore stripped)
to promote overloading in cases where partial substrate processing
is required.
- The ocsp.py, ldap.py example scripts added.
- Fix to univ.ObjectIdentifier input value handler to disallow negative
sub-IDs.
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Changes since 0.0.8a:
- Decoder can now treat values of unknown types as opaque OctetString.
- Fix to Set/SetOf type decoder to handle uninitialized scalar SetOf
components correctly.
- API versioning mechanics retired (pyasn1.v1 -> pyasn1) what makes
it possible to zip-import pyasn1 sources (used by egg and py2exe).
- Allow any non-zero values in Boolean type BER decoder, as it's in
accordnance with the standard.
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on some platforms that lacked shared library support in the past. The
list hasn't been maintained at all and the gain is very limited, so just
get rid of it.
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ASN1-encoded files (DER, BER, PER, etc.) in Python. ASN1 is the Abstract
Syntax Notation version 1, as defined by the International Telecommunication
Union (ITU).
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