1 files changed, 52 insertions, 0 deletions
diff --git a/third_party/python/pyasn1_modules/pyasn1_modules/rfc5083.py b/third_party/python/pyasn1_modules/pyasn1_modules/rfc5083.py
new file mode 100644
index 0000000000..26ef550c47
--- /dev/null
+++ b/third_party/python/pyasn1_modules/pyasn1_modules/rfc5083.py
@@ -0,0 +1,52 @@
+# This file is being contributed to of pyasn1-modules software.
+#
+# Created by Russ Housley without assistance from the asn1ate tool.
+# Modified by Russ Housley to add a map for use with opentypes and
+#   simplify the code for the object identifier assignment.
+#
+# Copyright (c) 2018, 2019 Vigil Security, LLC
+# License: http://snmplabs.com/pyasn1/license.html
+#
+#  Authenticated-Enveloped-Data for the Cryptographic Message Syntax (CMS)
+#
+# ASN.1 source from:
+# https://www.rfc-editor.org/rfc/rfc5083.txt
+
+from pyasn1.type import namedtype
+from pyasn1.type import tag
+from pyasn1.type import univ
+
+from pyasn1_modules import rfc5652
+
+MAX = float('inf')
+
+
+# CMS Authenticated-Enveloped-Data Content Type
+
+id_ct_authEnvelopedData = univ.ObjectIdentifier('1.2.840.113549.1.9.16.1.23')
+
+class AuthEnvelopedData(univ.Sequence):
+    pass
+
+AuthEnvelopedData.componentType = namedtype.NamedTypes(
+    namedtype.NamedType('version', rfc5652.CMSVersion()),
+    namedtype.OptionalNamedType('originatorInfo', rfc5652.OriginatorInfo().subtype(
+        implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0))),
+    namedtype.NamedType('recipientInfos', rfc5652.RecipientInfos()),
+    namedtype.NamedType('authEncryptedContentInfo', rfc5652.EncryptedContentInfo()),
+    namedtype.OptionalNamedType('authAttrs', rfc5652.AuthAttributes().subtype(
+        implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 1))),
+    namedtype.NamedType('mac', rfc5652.MessageAuthenticationCode()),
+    namedtype.OptionalNamedType('unauthAttrs', rfc5652.UnauthAttributes().subtype(
+        implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 2)))
+)
+
+
+# Map of Content Type OIDs to Content Types is added to the
+# ones that are in rfc5652.py
+
+_cmsContentTypesMapUpdate = {
+    id_ct_authEnvelopedData: AuthEnvelopedData(),
+}
+
+rfc5652.cmsContentTypesMap.update(_cmsContentTypesMapUpdate)