[catapult] - Copy Telemetry's gsutilz over to third_party.

third_party/gsutil/third_party/pyasn1-modules/pyasn1_modules/rfc5208.py

Index: third_party/gsutil/third_party/pyasn1-modules/pyasn1_modules/rfc5208.py
diff --git a/third_party/gsutil/third_party/pyasn1-modules/pyasn1_modules/rfc5208.py b/third_party/gsutil/third_party/pyasn1-modules/pyasn1_modules/rfc5208.py
new file mode 100644
index 0000000000000000000000000000000000000000..d1d2c16911bcc2ab97b7d611f4d3c1967fceb0ee
--- /dev/null
+++ b/third_party/gsutil/third_party/pyasn1-modules/pyasn1_modules/rfc5208.py
@@ -0,0 +1,39 @@
+#
+# 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)))
+    )