[pve-devel] [PATCH common 1/2] certificate: add subroutine that checks if cert and key match

[Max Carrara <m.carrara@proxmox.com>]

This is done here in order to allow other packages to make use of
this subroutine.

Signed-off-by: Max Carrara <m.carrara@proxmox.com>
---
 src/PVE/Certificate.pm | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/src/PVE/Certificate.pm b/src/PVE/Certificate.pm
index 31a7722..5ec1c6b 100644
--- a/src/PVE/Certificate.pm
+++ b/src/PVE/Certificate.pm
@@ -228,6 +228,32 @@ sub get_certificate_fingerprint {
     return $fp;
 }
 
+sub certificate_matches_key {
+    my ($cert_path, $key_path) = @_;
+
+    die "No certificate path given!\n" if !$cert_path;
+    die "No certificate key path given!\n" if !$key_path;
+
+    die "Certificate at '$cert_path' does not exist!\n" if ! -e $cert_path;
+    die "Certificate key '$key_path' does not exist!\n" if ! -e $key_path;
+
+    my $ctx = Net::SSLeay::CTX_new()
+	or $ssl_die->(
+	    "failed to create SSL context in order to verify private key\n"
+	);
+
+    Net::SSLeay::set_cert_and_key($ctx, $cert_path, $key_path);
+
+    my $result = Net::SSLeay::CTX_check_private_key($ctx);
+
+    $ssl_warn->("Failed to validate private key and certificate\n")
+	if !$result;
+
+    Net::SSLeay::CTX_free($ctx);
+
+    return $result;
+}
+
 sub get_certificate_info {
     my ($cert_path) = @_;
 
-- 
2.30.2