address review comments
diff --git a/docs/x509/reference.rst b/docs/x509/reference.rst
index 930c7f9..d86ebbe 100644
--- a/docs/x509/reference.rst
+++ b/docs/x509/reference.rst
@@ -1176,14 +1176,19 @@
ASN.1 bit string. This is the first recommendation in :rfc:`5280`
section 4.2.1.2.
- :param certificate: The issuing :class:`~cryptography.x509.Certificate`.
+ :param public_key: One of
+ :class:`~cryptography.hazmat.primitives.asymmetric.rsa.RSAPublicKey`
+ ,
+ :class:`~cryptography.hazmat.primitives.asymmetric.dsa.DSAPublicKey`
+ , or
+ :class:`~cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePublicKey`.
.. doctest::
>>> from cryptography import x509
>>> from cryptography.hazmat.backends import default_backend
- >>> cert = x509.load_pem_x509_certificate(pem_data, default_backend())
- >>> x509.AuthorityKeyIdentifier.from_issuer_public_key(cert.public_key())
+ >>> issuer_cert = x509.load_pem_x509_certificate(pem_data, default_backend())
+ >>> x509.AuthorityKeyIdentifier.from_issuer_public_key(issuer_cert.public_key())
<AuthorityKeyIdentifier(key_identifier='X\x01\x84$\x1b\xbc+R\x94J=\xa5\x10r\x14Q\xf5\xaf:\xc9', authority_cert_issuer=None, authority_cert_serial_number=None)>
.. class:: SubjectKeyIdentifier
@@ -1228,9 +1233,9 @@
>>> from cryptography import x509
>>> from cryptography.hazmat.backends import default_backend
- >>> cert = x509.load_pem_x509_certificate(pem_data, default_backend())
- >>> x509.SubjectKeyIdentifier.from_public_key(cert.public_key())
- <SubjectKeyIdentifier(digest='X\x01\x84$\x1b\xbc+R\x94J=\xa5\x10r\x14Q\xf5\xaf:\xc9')>
+ >>> csr = x509.load_pem_x509_csr(pem_req_data, default_backend())
+ >>> x509.SubjectKeyIdentifier.from_public_key(csr.public_key())
+ <SubjectKeyIdentifier(digest='\xdb\xaa\xf0\x06\x11\xdbD\xfe\xbf\x93\x03\x8av\x88WP7\xa6\x91\xf7')>
.. class:: SubjectAlternativeName