mirror of https://github.com/tp4a/teleport
36 lines
1.1 KiB
Python
36 lines
1.1 KiB
Python
'''ASN.1 definitions.
|
|
|
|
Not all ASN.1-handling code use these definitions, but when it does, they should be here.
|
|
'''
|
|
|
|
from pyasn1.type import univ, namedtype, tag
|
|
|
|
class PubKeyHeader(univ.Sequence):
|
|
componentType = namedtype.NamedTypes(
|
|
namedtype.NamedType('oid', univ.ObjectIdentifier()),
|
|
namedtype.NamedType('parameters', univ.Null()),
|
|
)
|
|
|
|
class OpenSSLPubKey(univ.Sequence):
|
|
componentType = namedtype.NamedTypes(
|
|
namedtype.NamedType('header', PubKeyHeader()),
|
|
|
|
# This little hack (the implicit tag) allows us to get a Bit String as Octet String
|
|
namedtype.NamedType('key', univ.OctetString().subtype(
|
|
implicitTag=tag.Tag(tagClass=0, tagFormat=0, tagId=3))),
|
|
)
|
|
|
|
|
|
class AsnPubKey(univ.Sequence):
|
|
'''ASN.1 contents of DER encoded public key:
|
|
|
|
RSAPublicKey ::= SEQUENCE {
|
|
modulus INTEGER, -- n
|
|
publicExponent INTEGER, -- e
|
|
'''
|
|
|
|
componentType = namedtype.NamedTypes(
|
|
namedtype.NamedType('modulus', univ.Integer()),
|
|
namedtype.NamedType('publicExponent', univ.Integer()),
|
|
)
|