What does bad record Mac mean in OpenSSL?

What does bad record Mac mean in OpenSSL?

“Bad Record MAC” basically means that the incoming data is bad for some reason. e.g. packet corruption. Since your mentioned “multithread”, the number one cause I’ve seen for Bad Record MAC” is the misuse of the OpenSSL library in a multithreaded context. OpenSSL does not support a SSL handle being used in at the same time from multi-threads.

Is there an issue with OpenLDAP + OpenSSL?

We met an issue about openldap + openssl. when a multithread client (30 threads) did connect to OPENLDAP server, the server side has “Bad Record MAC” error at TLS handshake randomly.

How to get bad record MAC in Java?

Our Java app receives a packet with probably bad_record_mac after a couple of minutes of proper communication with C-based OpenSSL side, then Java socket closes the connection. Full Java stack trace is as follows: …some internal code…

Why does my Mac say bad record Mac?

“Bad record MAC” is a common error that occurs as a result of a multitude of different problems. The problem could be on either side of the communications: client or server. Do you have any logs from the OpenSSL side of the comms?

When does SSL send a bad record Mac alert?

In the SSL/TLS handshake, the first encrypted message sent by any party is the Finished handshake message which precedes the application data. When the crypto went wrong, this will show up at that point, with the bad_record_mac alert.

Why do I get SSL alert [ ” write ” ]?

I am getting SSL: alert [“write\\: fatal : bad record mac from the OPENSSL logs during the handshake and Client is not sending the Application data and its creating the handshake again and again. What could be the issue please anybody help me in this?

How to turn off scan SSL on Mac?

Method 1: Disable HTTPS Inspection from Third-party Antivirus Settings 1 Open BitDefender and then go to Features. 2 Choose Web Protection and then choose SETTINGS. 3 Switch the toggle to turn the Scan SSL feature off.