pyderasn 4.3

Python ASN.1 DER/BER codec with abstract structures

PyDERASN – ASN.1 DER/BER library for Python

I’m going to build my own ASN.1 library with slots and blobs! (C) PyDERASN’s author

• BER/CER/DER decoding, DER encoding
• Basic ASN.1 data types (X.208): BOOLEAN, INTEGER, BIT STRING, OCTET STRING, NULL, OBJECT IDENTIFIER, ENUMERATED, all strings, UTCTime, GeneralizedTime, CHOICE, ANY, SEQUENCE (OF), SET (OF)
• Size constraints checking
• Working with sequences as high level data objects with ability to (un)marshall them
• Python 2.7/3.5/3.6 compatibility
• Automatic decoding of DEFINED BY fields
• Ability to know exact decoded objects offset and lengths in the binary
• Pretty printer and command-line decoder, that could conveniently replace utilities like either dumpasn1 or openssl asn1parse
• __slots__ friendliness

pyderasn is free software: see the file COPYING.LESSER for copying conditions.

PyDERASN home page is: http://pyderasn.cypherpunks.ru/

Please send questions, bug reports and patches to https://lists.cypherpunks.ru/mailman/listinfo/pyderasn-devel mailing list. Announcements also go to this mailing list.

Development Git source code repository currently is located here: https://git.cypherpunks.ru/cgit.cgi/pyderasn.git/