This is supported since strongswan 5.7.2 and is a good alternative to Curve25519 because Curve448 is almost equally secure but performs faster.
https://en.wikipedia.org/wiki/Curve448
This is enabled by default although we do not expect many other implementations to be able to support this.
Signed-off-by: Michael Tremer michael.tremer@ipfire.org --- html/cgi-bin/vpnmain.cgi | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-)
diff --git a/html/cgi-bin/vpnmain.cgi b/html/cgi-bin/vpnmain.cgi index 750b69b1d..1cd7cb84b 100644 --- a/html/cgi-bin/vpnmain.cgi +++ b/html/cgi-bin/vpnmain.cgi @@ -2000,11 +2000,11 @@ END #use default advanced value $cgiparams{'IKE_ENCRYPTION'} = 'chacha20poly1305|aes256gcm128|aes256gcm96|aes256gcm64|aes256|aes192gcm128|aes192gcm96|aes192gcm64|aes192|aes128gcm128|aes128gcm96|aes128gcm64|aes128'; #[18]; $cgiparams{'IKE_INTEGRITY'} = 'sha2_512|sha2_256'; #[19]; - $cgiparams{'IKE_GROUPTYPE'} = 'curve25519|4096|3072|2048'; #[20]; + $cgiparams{'IKE_GROUPTYPE'} = 'curve25519|curve448|4096|3072|2048'; #[20]; $cgiparams{'IKE_LIFETIME'} = '3'; #[16]; $cgiparams{'ESP_ENCRYPTION'} = 'chacha20poly1305|aes256gcm128|aes256gcm96|aes256gcm64|aes256|aes192gcm128|aes192gcm96|aes192gcm64|aes192|aes128gcm128|aes128gcm96|aes128gcm64|aes128'; #[21]; $cgiparams{'ESP_INTEGRITY'} = 'sha2_512|sha2_256'; #[22]; - $cgiparams{'ESP_GROUPTYPE'} = 'curve25519|4096|3072|2048'; #[23]; + $cgiparams{'ESP_GROUPTYPE'} = 'curve25519|curve448|4096|3072|2048'; #[23]; $cgiparams{'ESP_KEYLIFE'} = '1'; #[17]; $cgiparams{'COMPRESSION'} = 'off'; #[13]; $cgiparams{'ONLY_PROPOSED'} = 'on'; #[24]; @@ -2368,7 +2368,7 @@ if(($cgiparams{'ACTION'} eq $Lang::tr{'advanced'}) || goto ADVANCED_ERROR; } foreach my $val (@temp) { - if ($val !~ /^(curve25519|e521|e384|e256|e224|e192|e512bp|e384bp|e256bp|e224bp|768|1024|1536|2048|3072|4096|6144|8192)$/) { + if ($val !~ /^(curve25519|curve448|e521|e384|e256|e224|e192|e512bp|e384bp|e256bp|e224bp|768|1024|1536|2048|3072|4096|6144|8192)$/) { $errormessage = $Lang::tr{'invalid input'}; goto ADVANCED_ERROR; } @@ -2409,7 +2409,7 @@ if(($cgiparams{'ACTION'} eq $Lang::tr{'advanced'}) || goto ADVANCED_ERROR; } foreach my $val (@temp) { - if ($val !~ /^(curve25519|e521|e384|e256|e224|e192|e512bp|e384bp|e256bp|e224bp|768|1024|1536|2048|3072|4096|6144|8192|none)$/) { + if ($val !~ /^(curve25519|curve448|e521|e384|e256|e224|e192|e512bp|e384bp|e256bp|e224bp|768|1024|1536|2048|3072|4096|6144|8192|none)$/) { $errormessage = $Lang::tr{'invalid input'}; goto ADVANCED_ERROR; } @@ -2549,6 +2549,7 @@ if(($cgiparams{'ACTION'} eq $Lang::tr{'advanced'}) || @temp = split('|', $cgiparams{'IKE_INTEGRITY'}); foreach my $key (@temp) {$checked{'IKE_INTEGRITY'}{$key} = "selected='selected'"; } $checked{'IKE_GROUPTYPE'}{'curve25519'} = ''; + $checked{'IKE_GROUPTYPE'}{'curve448'} = ''; $checked{'IKE_GROUPTYPE'}{'768'} = ''; $checked{'IKE_GROUPTYPE'}{'1024'} = ''; $checked{'IKE_GROUPTYPE'}{'1536'} = ''; @@ -2588,6 +2589,7 @@ if(($cgiparams{'ACTION'} eq $Lang::tr{'advanced'}) || @temp = split('|', $cgiparams{'ESP_INTEGRITY'}); foreach my $key (@temp) {$checked{'ESP_INTEGRITY'}{$key} = "selected='selected'"; } $checked{'ESP_GROUPTYPE'}{'curve25519'} = ''; + $checked{'ESP_GROUPTYPE'}{'curve448'} = ''; $checked{'ESP_GROUPTYPE'}{'768'} = ''; $checked{'ESP_GROUPTYPE'}{'1024'} = ''; $checked{'ESP_GROUPTYPE'}{'1536'} = ''; @@ -2752,6 +2754,7 @@ if(($cgiparams{'ACTION'} eq $Lang::tr{'advanced'}) || <td class='boldbase'> <select name='IKE_GROUPTYPE' multiple='multiple' size='6' style='width: 100%'> <option value='curve25519' $checked{'IKE_GROUPTYPE'}{'curve25519'}>Curve 25519 (256 bit)</option> + <option value='curve448' $checked{'IKE_GROUPTYPE'}{'curve448'}>Curve 448 (224 bit)</option> <option value='e521' $checked{'IKE_GROUPTYPE'}{'e521'}>ECP-521 (NIST)</option> <option value='e512bp' $checked{'IKE_GROUPTYPE'}{'e512bp'}>ECP-512 (Brainpool)</option> <option value='e384' $checked{'IKE_GROUPTYPE'}{'e384'}>ECP-384 (NIST)</option> @@ -2774,6 +2777,7 @@ if(($cgiparams{'ACTION'} eq $Lang::tr{'advanced'}) || <td class='boldbase'> <select name='ESP_GROUPTYPE' multiple='multiple' size='6' style='width: 100%'> <option value='curve25519' $checked{'ESP_GROUPTYPE'}{'curve25519'}>Curve 25519 (256 bit)</option> + <option value='curve448' $checked{'ESP_GROUPTYPE'}{'curve448'}>Curve 448 (224 bit)</option> <option value='e521' $checked{'ESP_GROUPTYPE'}{'e521'}>ECP-521 (NIST)</option> <option value='e512bp' $checked{'ESP_GROUPTYPE'}{'e512bp'}>ECP-512 (Brainpool)</option> <option value='e384' $checked{'ESP_GROUPTYPE'}{'e384'}>ECP-384 (NIST)</option> @@ -3325,7 +3329,7 @@ sub make_algos($$$$$) {
if ($grp =~ m/^e(.*)$/) { push(@algo, "ecp$1"); - } elsif ($grp =~ m/curve25519/) { + } elsif ($grp =~ m/curve(25519|448)/) { push(@algo, "$grp"); } else { push(@algo, "modp$grp"); @@ -3342,7 +3346,7 @@ sub make_algos($$$$$) { # noop } elsif ($grp =~ m/^e(.*)$/) { push(@algo, "ecp$1"); - } elsif ($grp =~ m/curve25519/) { + } elsif ($grp =~ m/curve(25519|448)/) { push(@algo, "$grp"); } else { push(@algo, "modp$grp");