To enable ECDSA host-key algorithms for Tectia Client, do the following:
In the Tectia Connections Configuration GUI, go to General > Default Connection > Server and clear the Use factory defaults check box.
Move ecdsa-sha2-nistp256, ecdsa-sha2-nistp384 and ecdsa-sha2-nistp521 to the Enabled Hostkey Algorithms list.
Figure 2.3. Enabling elliptic curve host-key algorithms for Tectia Client
Once you have enabled the ECDSA host-key algorithms, you can change the order of the list using the red up and down arrow buttons. Tectia Client reads the list in the top-down order.
To enable ECDSA host keys for X.509, repeat the process described above but select the algorithms named x509v3-ecdsa-sha2-*.
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