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#
# PKCS#8 syntax
#
# ASN.1 source from:
# http://tools.ietf.org/html/rfc5208
#
# Sample captures could be obtained with "openssl pkcs8 -topk8" command
#
from pyasn1.type import tag, namedtype, namedval, univ, constraint
from pyasn1_modules.rfc2459 import *
from pyasn1_modules import rfc2251
class KeyEncryptionAlgorithms(AlgorithmIdentifier): pass
class PrivateKeyAlgorithms(AlgorithmIdentifier): pass
class EncryptedData(univ.OctetString): pass
class EncryptedPrivateKeyInfo(univ.Sequence):
componentType = namedtype.NamedTypes(
namedtype.NamedType('encryptionAlgorithm', AlgorithmIdentifier()),
namedtype.NamedType('encryptedData', EncryptedData())
)
class PrivateKey(univ.OctetString): pass
class Attributes(univ.SetOf):
componentType = rfc2251.Attribute()
class Version(univ.Integer):
namedValues = namedval.NamedValues(('v1', 0), ('v2', 1))
class PrivateKeyInfo(univ.Sequence):
componentType = namedtype.NamedTypes(
namedtype.NamedType('version', Version()),
namedtype.NamedType('privateKeyAlgorithm', AlgorithmIdentifier()),
namedtype.NamedType('privateKey', PrivateKey()),
namedtype.OptionalNamedType('attributes', Attributes().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0)))
)
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