1 Revision 0.1.7 2 -------------- 3 4 - License updated to vanilla BSD 2-Clause to ease package use 5 (http://opensource.org/licenses/BSD-2-Clause). 6 - Test suite made discoverable by unittest/unittest2 discovery feature. 7 - Fix to decoder working on indefinite length substrate -- end-of-octets 8 marker is now detected by both tag and value. Otherwise zero values may 9 interfere with end-of-octets marker. 10 - Fix to decoder to fail in cases where tagFormat indicates inappropriate 11 format for the type (e.g. BOOLEAN is always PRIMITIVE, SET is always 12 CONSTRUCTED and OCTET STRING is either of the two) 13 - Fix to REAL type encoder to force primitive encoding form encoding. 14 - Fix to CHOICE decoder to handle explicitly tagged, indefinite length 15 mode encoding 16 - Fix to REAL type decoder to handle negative REAL values correctly. Test 17 case added. 18 19 Revision 0.1.6 20 -------------- 21 22 - The compact (valueless) way of encoding zero INTEGERs introduced in 23 0.1.5 seems to fail miserably as the world is filled with broken 24 BER decoders. So we had to back off the *encoder* for a while. 25 There's still the IntegerEncoder.supportCompactZero flag which 26 enables compact encoding form whenever it evaluates to True. 27 - Report package version on debugging code initialization. 28 29 Revision 0.1.5 30 -------------- 31 32 - Documentation updated and split into chapters to better match 33 web-site contents. 34 - Make prettyPrint() working for non-initialized pyasn1 data objects. It 35 used to throw an exception. 36 - Fix to encoder to produce empty-payload INTEGER values for zeros 37 - Fix to decoder to support empty-payload INTEGER and REAL values 38 - Fix to unit test suites imports to be able to run each from 39 their current directory 40 41 Revision 0.1.4 42 -------------- 43 44 - Built-in codec debugging facility added 45 - Added some more checks to ObjectIdentifier BER encoder catching 46 posible 2^8 overflow condition by two leading sub-OIDs 47 - Implementations overriding the AbstractDecoder.valueDecoder method 48 changed to return the rest of substrate behind the item being processed 49 rather than the unprocessed substrate within the item (which is usually 50 empty). 51 - Decoder's recursiveFlag feature generalized as a user callback function 52 which is passed an uninitialized object recovered from substrate and 53 its uninterpreted payload. 54 - Catch inappropriate substrate type passed to decoder. 55 - Expose tagMap/typeMap/Decoder objects at DER decoder to uniform API. 56 - Obsolete __init__.MajorVersionId replaced with __init__.__version__ 57 which is now in-sync with distutils. 58 - Package classifiers updated. 59 - The __init__.py's made non-empty (rumors are that they may be optimized 60 out by package managers). 61 - Bail out gracefully whenever Python version is older than 2.4. 62 - Fix to Real codec exponent encoding (should be in 2's complement form), 63 some more test cases added. 64 - Fix in Boolean truth testing built-in methods 65 - Fix to substrate underrun error handling at ObjectIdentifier BER decoder 66 - Fix to BER Boolean decoder that allows other pre-computed 67 values besides 0 and 1 68 - Fix to leading 0x80 octet handling in DER/CER/DER ObjectIdentifier decoder. 69 See http://www.cosic.esat.kuleuven.be/publications/article-1432.pdf 70 71 Revision 0.1.3 72 -------------- 73 74 - Include class name into asn1 value constraint violation exception. 75 - Fix to OctetString.prettyOut() method that looses leading zero when 76 building hex string. 77 78 Revision 0.1.2 79 -------------- 80 81 - Fix to __long__() to actually return longs on py2k 82 - Fix to OctetString.__str__() workings of a non-initialized object. 83 - Fix to quote initializer of OctetString.__repr__() 84 - Minor fix towards ObjectIdentifier.prettyIn() reliability 85 - ObjectIdentifier.__str__() is aliased to prettyPrint() 86 - Exlicit repr() calls replaced with '%r' 87 88 Revision 0.1.1 89 -------------- 90 91 - Hex/bin string initializer to OctetString object reworked 92 (in a backward-incompatible manner) 93 - Fixed float() infinity compatibility issue (affects 2.5 and earlier) 94 - Fixed a bug/typo at Boolean CER encoder. 95 - Major overhawl for Python 2.4 -- 3.2 compatibility: 96 + get rid of old-style types 97 + drop string module usage 98 + switch to rich comparation 99 + drop explicit long integer type use 100 + map()/filter() replaced with list comprehension 101 + apply() replaced with */**args 102 + switched to use 'key' sort() callback function 103 + support both __nonzero__() and __bool__() methods 104 + modified not to use py3k-incompatible exception syntax 105 + getslice() operator fully replaced with getitem() 106 + dictionary operations made 2K/3K compatible 107 + base type for encoding substrate and OctetString-based types 108 is now 'bytes' when running py3k and 'str' otherwise 109 + OctetString and derivatives now unicode compliant. 110 + OctetString now supports two python-neutral getters: asOcts() & asInts() 111 + print OctetString content in hex whenever it is not printable otherwise 112 + in test suite, implicit relative import replaced with the absolute one 113 + in test suite, string constants replaced with numerics 114 115 Revision 0.0.13 116 --------------- 117 118 - Fix to base10 normalization function that loops on univ.Real(0) 119 120 Revision 0.0.13b 121 ---------------- 122 123 - ASN.1 Real type is now supported properly. 124 - Objects of Constructed types now support __setitem__() 125 - Set/Sequence objects can now be addressed by their field names (string index) 126 and position (integer index). 127 - Typo fix to ber.SetDecoder code that prevented guided decoding operation. 128 - Fix to explicitly tagged items decoding support. 129 - Fix to OctetString.prettyPrint() to better handle non-printable content. 130 - Fix to repr() workings of Choice objects. 131 132 Revision 0.0.13a 133 ---------------- 134 135 - Major codec re-design. 136 - Documentation significantly improved. 137 - ASN.1 Any type is now supported. 138 - All example ASN.1 modules moved to separate pyasn1-modules package. 139 - Fix to initial sub-OID overflow condition detection an encoder. 140 - BitString initialization value verification improved. 141 - The Set/Sequence.getNameByPosition() method implemented. 142 - Fix to proper behaviour of PermittedAlphabetConstraint object. 143 - Fix to improper Boolean substrate handling at CER/DER decoders. 144 - Changes towards performance improvement: 145 + all dict.has_key() & dict.get() invocations replaced with modern syntax 146 (this breaks compatibility with Python 2.1 and older). 147 + tag and tagset caches introduced to decoder 148 + decoder code improved to prevent unnecessary pyasn1 objects creation 149 + allow disabling components verification when setting components to 150 structured types, this is used by decoder whilst running in guided mode. 151 + BER decoder for integer values now looks up a small set of pre-computed 152 substrate values to save on decoding. 153 + a few pre-computed values configured to ObjectIdentifier BER encoder. 154 + ChoiceDecoder split-off SequenceOf one to save on unnecessary checks. 155 + replace slow hasattr()/getattr() calls with isinstance() introspection. 156 + track the number of initialized components of Constructed types to save 157 on default/optional components initialization. 158 + added a shortcut ObjectIdentifier.asTuple() to be used instead of 159 __getitem__() in hotspots. 160 + use Tag.asTuple() and pure integers at tag encoder. 161 + introduce and use in decoder the baseTagSet attribute of the built-in 162 ASN.1 types. 163 164 Revision 0.0.12a 165 ---------------- 166 167 - The individual tag/length/value processing methods of 168 encoder.AbstractItemEncoder renamed (leading underscore stripped) 169 to promote overloading in cases where partial substrate processing 170 is required. 171 - The ocsp.py, ldap.py example scripts added. 172 - Fix to univ.ObjectIdentifier input value handler to disallow negative 173 sub-IDs. 174 175 Revision 0.0.11a 176 ---------------- 177 178 - Decoder can now treat values of unknown types as opaque OctetString. 179 - Fix to Set/SetOf type decoder to handle uninitialized scalar SetOf 180 components correctly. 181 182 Revision 0.0.10a 183 ---------------- 184 185 - API versioning mechanics retired (pyasn1.v1 -> pyasn1) what makes 186 it possible to zip-import pyasn1 sources (used by egg and py2exe). 187 188 Revision 0.0.9a 189 --------------- 190 191 - Allow any non-zero values in Boolean type BER decoder, as it's in 192 accordnance with the standard. 193 194 Revision 0.0.8a 195 --------------- 196 197 - Integer.__index__() now supported (for Python 2.5+). 198 - Fix to empty value encoding in BitString encoder, test case added. 199 - Fix to SequenceOf decoder that prevents it skipping possible Choice 200 typed inner component. 201 - Choice.getName() method added for getting currently set component 202 name. 203 - OctetsString.prettyPrint() does a single str() against its value 204 eliminating an extra quotes. 205 206 Revision 0.0.7a 207 --------------- 208 209 - Large tags (>31) now supported by codecs. 210 - Fix to encoder to properly handle explicitly tagged untagged items. 211 - All possible value lengths (up to 256^126) now supported by encoders. 212 - Fix to Tag class constructor to prevent negative IDs. 213 214 Revision 0.0.6a 215 --------------- 216 217 - Make use of setuptools. 218 - Constraints derivation verification (isSuperTypeOf()/isSubTypeOf()) fixed. 219 - Fix to constraints comparation logic -- can't cmp() hash values as it 220 may cause false positives due to hash conflicts. 221 222 Revision 0.0.5a 223 --------------- 224 225 - Integer BER codec reworked fixing negative values encoding bug. 226 - clone() and subtype() methods of Constructed ASN.1 classes now 227 accept optional cloneValueFlag flag which controls original value 228 inheritance. The default is *not* to inherit original value for 229 performance reasons (this may affect backward compatibility). 230 Performance penalty may be huge on deeply nested Constructed objects 231 re-creation. 232 - Base ASN.1 types (pyasn1.type.univ.*) do not have default values 233 anymore. They remain uninitialized acting as ASN.1 types. In 234 this model, initialized ASN.1 types represent either types with 235 default value installed or a type instance. 236 - Decoders' prototypes are now class instances rather than classes. 237 This is to simplify initial value installation to decoder's 238 prototype value. 239 - Bugfix to BitString BER decoder (trailing bits not regarded). 240 - Bugfix to Constraints use as mapping keys. 241 - Bugfix to Integer & BitString clone() methods 242 - Bugix to the way to distinguish Set from SetOf at CER/DER SetOfEncoder 243 - Adjustments to make it running on Python 1.5. 244 - In tests, substrate constants converted from hex escaped literals into 245 octals to overcome indefinite hex width issue occuring in young Python. 246 - Minor performance optimization of TagSet.isSuperTagSetOf() method 247 - examples/sshkey.py added 248 249 Revision 0.0.4a 250 --------------- 251 252 * Asn1ItemBase.prettyPrinter() -> *.prettyPrint() 253 254 Revision 0.0.3a 255 --------------- 256 257 * Simple ASN1 objects now hash to their Python value and don't 258 depend upon tag/constraints/etc. 259 * prettyIn & prettyOut methods of SimplleAsn1Object become public 260 * many syntax fixes 261 262 Revision 0.0.2a 263 --------------- 264 265 * ConstraintsIntersection.isSuperTypeOf() and 266 ConstraintsIntersection.hasConstraint() implemented 267 * Bugfix to NamedValues initialization code 268 * +/- operators added to NamedValues objects 269 * Integer.__abs__() & Integer.subtype() added 270 * ObjectIdentifier.prettyOut() fixes 271 * Allow subclass components at SequenceAndSetBase 272 * AbstractConstraint.__cmp__() dropped 273 * error.Asn1Error replaced with error.PyAsn1Error 274 275 Revision 0.0.1a 276 --------------- 277 278 * Initial public alpha release 279
