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diff --git a/deps/openssl/openssl/doc/man3/EVP_PKEY_CTX_set_rsa_pss_keygen_md.pod b/deps/openssl/openssl/doc/man3/EVP_PKEY_CTX_set_rsa_pss_keygen_md.pod
new file mode 100644
index 0000000000..7578278a6c
--- /dev/null
+++ b/deps/openssl/openssl/doc/man3/EVP_PKEY_CTX_set_rsa_pss_keygen_md.pod
@@ -0,0 +1,94 @@
+=pod
+
+=head1 NAME
+
+EVP_PKEY_CTX_set_rsa_pss_keygen_md,
+EVP_PKEY_CTX_set_rsa_pss_keygen_mgf1_md,
+EVP_PKEY_CTX_set_rsa_pss_keygen_saltlen
+- EVP_PKEY RSA-PSS algorithm support functions
+
+=head1 SYNOPSIS
+
+ #include <openssl/rsa.h>
+
+ int EVP_PKEY_CTX_set_rsa_pss_keygen_md(EVP_PKEY_CTX *pctx,
+                                        const EVP_MD *md);
+ int EVP_PKEY_CTX_set_rsa_pss_keygen_mgf1_md(EVP_PKEY_CTX *pctx,
+                                             const EVP_MD *md);
+ int EVP_PKEY_CTX_set_rsa_pss_keygen_saltlen(EVP_PKEY_CTX *pctx,
+                                             int saltlen);
+
+=head1 DESCRIPTION
+
+These are the functions that implement L<RSA-PSS(7)>.
+
+=head2 Signing and Verification
+
+The macro EVP_PKEY_CTX_set_rsa_padding() is supported but an error is
+returned if an attempt is made to set the padding mode to anything other
+than B<PSS>. It is otherwise similar to the B<RSA> version.
+
+The EVP_PKEY_CTX_set_rsa_pss_saltlen() macro is used to set the salt length.
+If the key has usage restrictions then an error is returned if an attempt is
+made to set the salt length below the minimum value. It is otherwise similar
+to the B<RSA> operation except detection of the salt length (using
+RSA_PSS_SALTLEN_AUTO) is not supported for verification if the key has
+usage restrictions.
+
+The EVP_PKEY_CTX_set_signature_md() and EVP_PKEY_CTX_set_rsa_mgf1_md() macros
+are used to set the digest and MGF1 algorithms respectively. If the key has
+usage restrictions then an error is returned if an attempt is made to set the
+digest to anything other than the restricted value. Otherwise these are
+similar to the B<RSA> versions.
+
+=head2 Key Generation
+
+As with RSA key generation the EVP_PKEY_CTX_set_rsa_keygen_bits()
+and EVP_PKEY_CTX_set_rsa_keygen_pubexp() macros are supported for RSA-PSS:
+they have exactly the same meaning as for the RSA algorithm.
+
+Optional parameter restrictions can be specified when generating a PSS key.
+If any restrictions are set (using the macros described below) then B<all>
+parameters are restricted. For example, setting a minimum salt length also
+restricts the digest and MGF1 algorithms. If any restrictions are in place
+then they are reflected in the corresponding parameters of the public key
+when (for example) a certificate request is signed.
+
+EVP_PKEY_CTX_set_rsa_pss_keygen_md() restricts the digest algorithm the
+generated key can use to B<md>.
+
+EVP_PKEY_CTX_set_rsa_pss_keygen_mgf1_md() restricts the MGF1 algorithm the
+generated key can use to B<md>.
+
+EVP_PKEY_CTX_set_rsa_pss_keygen_saltlen() restricts the minimum salt length
+to B<saltlen>.
+
+=head1 NOTES
+
+A context for the B<RSA-PSS> algorithm can be obtained by calling:
+
+ EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_RSA_PSS, NULL);
+
+=head1 RETURN VALUES
+
+All these functions return 1 for success and 0 or a negative value for failure.
+In particular a return value of -2 indicates the operation is not supported by
+the public key algorithm.
+
+=head1 SEE ALSO
+
+L<RSA-PSS(7)>,
+L<EVP_PKEY_CTX_new(3)>,
+L<EVP_PKEY_CTX_ctrl_str(3)>,
+L<EVP_PKEY_derive(3)>
+
+=head1 COPYRIGHT
+
+Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the OpenSSL license (the "License").  You may not use
+this file except in compliance with the License.  You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut