network plugin: Talk about “HMAC-SHA-256” in the documentation and error messages.

diff --git a/src/collectd.conf.pod b/src/collectd.conf.pod
index 581da28..b335488 100644 (file)
--- a/src/collectd.conf.pod
+++ b/src/collectd.conf.pod
@@ -1596,10 +1596,12 @@ B<E<lt>ListenE<gt>> blocks:
 
 Set the security you require for network communication. When the security level
 has been set to B<Encrypt>, data sent over the network will be encrypted using
-I<AES-256> and only encrypted data will be accepted when receiving. When set to
-B<Sign>, transmitted data is signed using I<SHA-256> and only signed and
-encrypted data is accepted when receiving. When set to B<None>, data is sent
-without any security and all data is accepted when receiving.
+I<AES-256> and only encrypted data will be accepted when receiving. The
+integrity of encrypted packets is ensures using I<SHA-1>. When set to B<Sign>,
+transmitted data is signed using the I<HMAC-SHA-256> message authentication
+code and only signed and encrypted data is accepted when receiving. When set to
+B<None>, data is sent without any security and all data is accepted when
+receiving.
 
 This feature is only available if the I<network> plugin was linked with
 I<libgcrypt>.

diff --git a/src/network.c b/src/network.c
index 920b891..ca63e96 100644 (file)
--- a/src/network.c
+++ b/src/network.c
@@ -761,7 +761,7 @@ static int parse_part_sign_sha256 (sockent_t *se, /* {{{ */
   err = gcry_md_open (&hd, GCRY_MD_SHA256, GCRY_MD_FLAG_HMAC);
   if (err != 0)
   {
-    ERROR ("network plugin: Creating HMAC object failed: %s",
+    ERROR ("network plugin: Creating HMAC-SHA-256 object failed: %s",
         gcry_strerror (err));
     return (-1);
   }
@@ -1030,7 +1030,7 @@ static int parse_packet (receive_list_entry_t *rle) /* {{{ */
                        status = parse_part_sign_sha256 (se, &buffer, &buffer_len);
                        if (status < 0)
                        {
-                               ERROR ("network plugin: Verifying SHA-256 "
+                               ERROR ("network plugin: Verifying HMAC-SHA-256 "
                                                "signature failed "
                                                "with status %i.", status);
                                break;
@@ -1038,7 +1038,7 @@ static int parse_packet (receive_list_entry_t *rle) /* {{{ */
                        else if (status > 0)
                        {
                                ERROR ("network plugin: Ignoring packet with "
-                                               "invalid SHA-256 signature.");
+                                               "invalid HMAC-SHA-256 signature.");
                                break;
                        }
                        else