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-rw-r--r--docs/hazmat/primitives/asymmetric/serialization.rst19
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diff --git a/docs/hazmat/primitives/asymmetric/serialization.rst b/docs/hazmat/primitives/asymmetric/serialization.rst
index 4a2aedc9..dd532b51 100644
--- a/docs/hazmat/primitives/asymmetric/serialization.rst
+++ b/docs/hazmat/primitives/asymmetric/serialization.rst
@@ -309,6 +309,25 @@ Serialization Formats
encryption. Choose this unless you have explicit legacy compatibility
requirements.
+.. class:: PublicFormat
+
+ .. versionadded:: 0.8
+
+ An enumeration for public key formats. Used with the ``public_bytes``
+ method available on
+ :class:`~cryptography.hazmat.primitives.asymmetric.rsa.RSAPublicKeyWithSerialization`.
+
+ .. attribute:: SubjectPublicKeyInfo
+
+ This is the typical public key format. It consists of an algorithm
+ identifier and the public key as a bit string. Choose this unless
+ you have specific needs.
+
+ .. attribute:: PKCS1
+
+ Just the public key elements (without the algorithm identifier). This
+ format is occasionally used by various systems.
+
Serialization Encodings
~~~~~~~~~~~~~~~~~~~~~~~