Published Jul 30, 2024

Certificate verify failed error when connecting to the ITS Private Cloud VPN (VSS VPN)

 Problem

VPN connection is unsuccessful with error certificate verify failed.

VERIFY ERROR: depth=0, error=CA signature digest algorithm too weak: C=CA, ST=ON, L=Toronto, O=VSS-HIG-EIS-UToronto, CN=VGW, emailAddress=ovpn-contact@eis.utoronto.ca, serial=1 OpenSSL: error:0A000086:SSL routines::certificate verify failed TLS_ERROR: BIO read tls_read_plaintext error TLS Error: TLS object -> incoming plaintext read error TLS Error: TLS handshake failed SIGUSR1[soft,tls-error] received, process restarting

 Solution

Make sure that you have fetched the Unified VPN profile

  1. Go to: https://vskey-vn.eis.utoronto.ca/openvpn/unified/ auth required

  2. Fill out your VSS username.

  3. Click on “Send”

  4. Install the OpenVPN profile as usual.

 

If feasible, please use OpenVPN client version 2.5.x.

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