Since 1.0.8 there is support for importing CA, KEY and CERT blobs in OVPN configuration files. For tls-auth this support is missing. Tls-auth is used as an extra prevention of DoS on the VPN server where the client, in addition to a valid key also needs to have a shared secret key.

Importing tls-auth works fine if it points to a file with the key-direction behind it, e.g.:

    tls-auth foo_ta.key 1

This does not work however for blob and separate key-direction. For example, the relevant configuration for tls-auth in my OVPN file is this:

--- cut ----

key-direction 1
<tls-auth>
#
# 2048 bit OpenVPN static key
#
-----BEGIN OpenVPN Static key V1-----
7ce58ca59201223f5751dda9f6a418d8
b2319fc6d7b3d3e7aeca6ed5a1119500
1b70029b47fedecbdebb5634557a0772
857499c0b187dd846a64e6fe23d1089c
36edca6e284c8893ded7b1857c49ef07
26962cf17b0e95e1aff62a0faca83715
7e595f47e7a332c34007ade7fc3c90aa
9ee4efa2d2059509b620e236410735b3
8b9f0be82db5ddf5c21b278c5c28d873
f4522c97bdca764b393a267d1251c43c
c22ff200ae1a73388d8a1d72fbc30272
09fd9dffa5af0f02d2b03f7bc2ef9582
6567baa786b971d0ce918aba7ed38c13
9101b995a5b26b7904c1d3a3afb2638e
894f565dc0fefb30408361fe4eadd0f8
a3cdf6b9bee73c736e12ecd2ef2ce3f9
-----END OpenVPN Static key V1-----
</tls-auth>

---- cut ----