Questions tagged [pyasn1]
42 questions
4
votes
2 answers
Installing scrapy on mac - pyasn1 distribution not found
I have installed scrapy on my mac (OS El Capital, 10.11.4), there does not seem to be any compatibilty problem between scrapy and my python version (2.7.11) but when I try to start a project with scrapy startproject tutorial I get following error…
vincisson
- 43
- 1
- 5
4
votes
1 answer
Decode using ASN.1 where substrate contains some opaque data
I would like to use pyasn1 to decode some data, part of which is opaque. That is, part of the data contained in the ASN.1-defined structure may or may not be ASN.1 decode-able, and I need to parse the preamble to find out how to decode it.
Based on…
neirbowj
- 635
- 5
- 17
3
votes
3 answers
ERROR:SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063
I am presently working with ASN 1 Decoder.I will be getting a Hex decimal code from producer and i will be collecting it in consumer.
Then after i will be converting the hex code to RDD and then pass the hex value RDD to another function with in…
Rahul
- 243
- 2
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- 17
3
votes
1 answer
Pyasn1 how do decoder.decode works?
I have this little part of code:
from pyasn1.type import univ
from pyasn1.codec.ber import decoder
decoder.decode(binary_file.read(5))
my binary_file variable it's a particular binary file encoded (CDR)
if i try to decode the readed part it gives…
Aldin Selimbasic
- 29
- 1
- 5
3
votes
1 answer
Where is my interpretation of ASN1 der wrong?
Here is what my structure looks like:
SET OF
SEQUENCE:
INTEGER: XX
INTEGER: YY
My encoding looks like this:
11 08 10 06 02 01 XX 02 01 YY
11 08 -- SET OF
10 06 -- SEQUENCE
However, when I decode with openssl, I don't see…
ExceptionHandler
- 213
- 1
- 8
- 24
2
votes
0 answers
Decoding ASN1 encoded "Subject Key Identifier" with weird length
Im trying to decode a field called Subject Key Identifier (RFC 5820), which was contained within a CMS certificate (RFC 6488). I have for most of the previous "work" successfully used pyasn1 and pyasn1_modules to decode ASN1 structures. However i…
shinypants
- 31
- 1
2
votes
2 answers
pyasn1 vs indefinite-length structures
Is it a bug that pyasn1 cannot parse unaided (without defining a new type) the indefinite-length constructed data described in the code snippet below, or is my example not valid BER-encoded ASN.1?
If pyasn1 can't handle this without help, is there…
PythonAteMyHamster
- 176
- 1
- 11
1
vote
1 answer
tag-incompatible: How to add a SET OF to a SEQUENCE in pyasn1?
I have successfully used pyasn1 to encode most of my data, but am having trouble adding a SetOf construction to a sequence. Here is a schema that represents the structure:
TroubleAddingSetOf
DEFINITIONS IMPLICIT TAGS ::=
BEGIN
TopType ::= CHOICE
{
…
Nick Urbanik
- 31
- 4
1
vote
1 answer
How do I remove CT extensions from an x.509 certificate in Python?
I'm working on a Python script in which I need to determine if a precertificate and leaf certificate match.
To do this, I need to compare the TBS cert of the precert and leaf cert, after removing the SCT(1.3.6.1.4.1.11129.2.4.2) and Precert…
Tugzrida
- 491
- 2
- 6
- 17
1
vote
0 answers
How do I remove a field from a ASN.1 structure (pyasn1)?
Basically, I'm looking for something like this:
from pyasn1.codec.ber import decoder as ber_decoder
from pyasn1.codec.ber import encoder as ber_encoder
x, _ = ber_decoder.decode(data)
x.remove(2) # remove the second field
result =…
Volker
- 200
- 1
- 9
1
vote
0 answers
The equivalent of pyasn decoder.decode in Powershell
I have an array of bytes that is der encoded, I need to decode these bytes into asn1 object using Powershell or by accessing a C# library from powershell. In python there is a module built to do this process called pyasn1.
I tried using the C# class…
Henry
- 23
- 2
1
vote
1 answer
How to set default values in a SEQUENCE OF object
I'm starting to use the pyasn1 library and I have a question on how to set default values in a SEQUENCE OF object. My ASN1 structure is the following:
Asn1Def DEFINITIONS AUTOMATIC TAGS ::=
BEGIN
CasinoPlayer ::= SEQUENCE
{ …
zecky
- 31
- 3
1
vote
1 answer
Filling values through a file such as excel
Following Python class i created using pyasn and I like to see the feasiblity of passing the value through a file rather than the way of creating an object and passing the values for the members through the object.types of value which are string and…
Awin
- 91
- 1
- 8
1
vote
1 answer
Python script running via shell but not working via supervisord
The error that I'm facing is:
File "/usr/local/lib/python3.5/dist-packages/oauth2client/crypt.py", line 23, in
from oauth2client import _pure_python_crypt
File…
Phil
- 2,859
- 5
- 20
- 21
1
vote
1 answer
How to parse Object Class from ASN1 grammar to use in pyasn1?
I need to use GSM MAP ASN.1, but there is one Information Object Classes (or here) in that specification and I don't know how to parse this grammar to use in pyasn1 lib.
Is there some way (or workaround) to parse it?
Here is the case (Taken from…
Fabiano
- 377
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