In RTC 5.0.2: Is the source code added in Jazz source control is encrypted?
One answer
So during transfer the data - all data - is encrypted due to HTTPS, but in the database it is not encrypted.
Comments
As I said, the change is compressed usually. Just because you can not see/understand the data does not mean it is encrypted. Look at any compressed file and try to figure what the data is.
Again, there is no encryption done by the application, prior to storing the data in the database. There are no mechanisms to do encryption for scm data in the application either as far as I am aware.
The logs are stored in the file system, it is your admin's duty to make them accessible only to the users that should be able to. If you want to send the logs somewhere, you would have to come up with a custom solution to do it.
The application uses plain a plain JDBC connection to the database. If your DB Vendor JDBC driver uses TLS1.2 fine. The database should be very close to your application server. So I am not sure why you want the additional performance impact due to encryption.