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The code below to illustrates the problem. The code produces two different hex strings:
300c06082a831a8c9a6e01023000 300a06082a831a8c9a6e0102
I believe that the first one is correct! The empty SEQUENCE should not be omitted in this situation.
#!/usr/bin/env python from pyasn1.codec.der.decoder import decode as der_decode from pyasn1.codec.der.encoder import encode as der_encode from pyasn1.type import univ, namedtype from pyasn1_modules import rfc5280 import binascii oid = univ.ObjectIdentifier((1, 2, 410, 200046, 1, 2)) class PadAlgo(univ.Choice): componentType = namedtype.NamedTypes( namedtype.NamedType('specifiedPadAlgo', univ.OctetString()), namedtype.NamedType('generalPadAlgo', univ.ObjectIdentifier()) ) pad_algo_1 = PadAlgo() pad_algo_1['specifiedPadAlgo'] = univ.OctetString(hexValue='01') class CbcParameters(univ.Sequence): componentType = namedtype.NamedTypes( namedtype.DefaultedNamedType('m', univ.Integer().subtype(value=1)), namedtype.DefaultedNamedType('padAlgo', pad_algo_1) ) algorithmIdentifierMapUpdate = { oid: CbcParameters(), } rfc5280.algorithmIdentifierMap.update(algorithmIdentifierMapUpdate) param = CbcParameters() param['m'] = 1 param['padAlgo'] = pad_algo_1 AlgoId = rfc5280.AlgorithmIdentifier() AlgoId['algorithm'] = oid AlgoId['parameters'] = der_encode(param) substrate = der_encode(AlgoId) print(binascii.hexlify(substrate)) asn1Object, rest = der_decode(substrate, asn1Spec=rfc5280.AlgorithmIdentifier(), decodeOpenTypes=True) substrate = der_encode(asn1Object) print(binascii.hexlify(substrate))
The text was updated successfully, but these errors were encountered:
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The code below to illustrates the problem. The code produces two different hex strings:
300c06082a831a8c9a6e01023000
300a06082a831a8c9a6e0102
I believe that the first one is correct! The empty SEQUENCE should not be omitted in this situation.
The text was updated successfully, but these errors were encountered: