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
Go to: https://vskey-vn.eis.utoronto.ca/openvpn/unified/ auth required
Fill out your VSS username.
Click on “Send”
Install the OpenVPN profile as usual.
If feasible, please use OpenVPN client version 2.5.x.
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