From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shelley Vohr <shelley.vohr@gmail.com>
Date: Wed, 23 Oct 2019 12:54:32 -0700
Subject: fix: add RSA-PSS keygen functions

This adds support for missing RSA_PSS key generation functions.
Refs https://github.com/nodejs/node/pull/26960.

Upstreamed at https://boringssl-review.googlesource.com/c/boringssl/+/38524.

diff --git a/include/openssl/evp.h b/include/openssl/evp.h
index fe6c8b6adb3ec1259f1d66d7b77da3577cbaf2dc..d15cbdc394fbd0944314375115e38380462d17f4 100644
--- a/include/openssl/evp.h
+++ b/include/openssl/evp.h
@@ -723,6 +723,18 @@ OPENSSL_EXPORT int EVP_PKEY_CTX_set_rsa_padding(EVP_PKEY_CTX *ctx, int padding);
 OPENSSL_EXPORT int EVP_PKEY_CTX_get_rsa_padding(EVP_PKEY_CTX *ctx,
                                                 int *out_padding);
 
+// EVP_PKEY_CTX_set_rsa_pss_keygen_md() always returns 0.
+OPENSSL_EXPORT int EVP_PKEY_CTX_set_rsa_pss_keygen_md(EVP_PKEY_CTX *ctx,
+                                                      const EVP_MD *md);
+
+// EVP_PKEY_CTX_set_rsa_pss_keygen_saltlen() always returns 0.
+OPENSSL_EXPORT int EVP_PKEY_CTX_set_rsa_pss_keygen_saltlen(EVP_PKEY_CTX *ctx,
+                                                           int salt_len);
+
+// EVP_PKEY_CTX_set_rsa_pss_keygen_mgf1_md() always returns 0.
+OPENSSL_EXPORT int EVP_PKEY_CTX_set_rsa_pss_keygen_mgf1_md(EVP_PKEY_CTX *ctx,
+                                                           const EVP_MD *md);
+
 // EVP_PKEY_CTX_set_rsa_pss_saltlen sets the length of the salt in a PSS-padded
 // signature. A value of -1 cause the salt to be the same length as the digest
 // in the signature. A value of -2 causes the salt to be the maximum length