Hi all,

Since Wireguard will replace VPN in the future, can the ootb kernel configuration be modified to enable the option "Config_Crypto_Blkcipher".  See the error below:

Found kernel source directory:
{{ * /usr/src/linux}}
{{ * Found sources for kernel version:}}
{{ * 5.10.26_p1-debian-sources}}
{{ * Checking for suitable kernel configuration options...}}
{{ * CONFIG_CRYPTO_BLKCIPHER: is not set when it should be.}}
{{ * Please check to make sure these options are set correctly.}}
{{ * Failure to do so may cause unexpected problems.}}
{{ * Once you have satisfied these options, please try merging}}
{{ * this package again.}}
{{ * ERROR: net-vpn/wireguard-0.0.20190601::net-kit failed (setup phase):}}
{{ * Incorrect kernel configuration options}}
{{ * }}
{{ * Call stack:}}
{{ * ebuild.sh, line 93: Called pkg_setup}}
{{ * wireguard-0.0.20190601.ebuild, line 46: Called linux-mod_pkg_setup}}
{{ * linux-mod.eclass, line 586: Called linux-info_pkg_setup}}
{{ * linux-info.eclass, line 962: Called check_extra_config}}
{{ * linux-info.eclass, line 854: Called die}}
{{ * The specific snippet of code:}}
{{ * die "Incorrect kernel configuration options"}}

Assuming the Gentoo documentation is accurate, it should be only necessary to enable

CONFIG_WIREGUARD in the current Debian Sources config.