The problem of processing Linux under Subversion attempt to connect to the self-built VISUALSVN server "Key usage violation in certificate have been detected" error

Under Linux, using Subversion to try to link to the SVN library set up by VISUALSVN server, the following error may be reported,

Svn:options of ' Https://server.domain.local/svn/repo ': SSL handshake Failed:ssl Error:
Key usage violation in certificate have been detected. (https://server.domain.local)

Google this issue, found this in VISUALSVN's official website has a description, detailed information, please refer to https://www.visualsvn.com/support/topic/00056/.

The reason for this problem is that

Experience the issue if both of the following conditions are met:

• VISUALSVN Server has a self-signed certificate applied and
• Subversion client is built against the GNUTLS library.

VISUALSVN Official website has the following instructions,

GNUTLS Library is a alternative to OpenSSL. Most Subversion clients for Windows is built against OpenSSL and is not affected by this issue. While some Subversion packages (available mostly on linux-based operating systems such as Ubuntu and Debian) is built Aga Inst GnuTLS and is affected.

The way to solve the problem is to

Self-signed certificate please follow the instruction to generate a cerificate without specifying ' Ke Y Usage ' extension:

1. ADD the following registry value to the Windows registry:

   • For 32-bit system:

     [Hkey_local_machine\software\visualsvn\visualsvn Server] "creategnutlscompatiblecertificate" =dword:00000001      

   • For 64-bit system:

     [Hkey_local_machine\software\wow6432node\visualsvn\visualsvn Server] "creategnutlscompatiblecertificate" =dword:0 0000001      

2. Start visualsvn Server Manager.
3. Go to Action | Properties | Certificate.
4. Click Change certificate ... and follow the wizard instructions to generate a new self-signed certificate.

The certificate would be generated without the ' Key Usage ' extension and would be compatible both with GnuTLS and OpenSSL.

The problem of processing Linux under Subversion attempt to connect to the self-built VISUALSVN server "Key usage violation in certificate have been detected" error