Post your videos!

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LMD
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Re: Post your videos!

by LMD » Post

Well, a four digit code means 10k combinations, which in turn means it's vulnerable to a brute force attack.
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sorcerykid
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Re: Post your videos!

by sorcerykid » Post

To instigate a brute-force attack would require bypassing the automated security controls. By design, the safe is disabled for ten seconds after each incorrect entry, so that would be remarkably inefficient.

Moreover, the 4-digit access code is only used to generate the public key. The private key is a 64-bit hash derived from a password set by the administrator. So even downloading a copy of the map would involve two-factor authentication. With a 64-bit private key in addition to a 4 digit access code, that means 21.4 trillion possible combinations. If someone really has that much time on their hands to hack a virtual safe in a 3d game, I think there are much bigger security concerns at play.

sofar
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Re: Post your videos!

by sofar » Post

sorcerykid wrote:Last year one of my more vigilant players made me aware that it is possible for anyone to inspect locked chests on servers with only basic CSM knowledge. This means that confidential information in written books are vulnerable to intrusion.

So I ended up developing a mod that offers block-chain encryption of metadata for itemstacks (in particular books), in addition to encrypted node inventories with pass-code access via a new "Digital Safe" node. The safe is particularly suited for players that want the extra peace of mind that nobody -- not even moderators with protection_bypass privilege -- can snoop through their personal belongings.
Very interesting! Do you have the code somewhere so people can verify that this offers the security benefits you claim? Also, in your video you state that this uses pub/private key pairs (makes total sense, that's what I would likely use if I'd design something like this), but that isn't the same as "block-chain" encryption (i.e. perfect forward signing/secrecy, which doesn't seem logical, but, enlighten me? I'm no blockchain expert at all).

sofar
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Re: Post your videos!

by sofar » Post

sofar wrote: Very interesting! Do you have the code somewhere so people can verify that this offers the security benefits you claim? Also, in your video you state that this uses pub/private key pairs (makes total sense, that's what I would likely use if I'd design something like this), but that isn't the same as "block-chain" encryption (i.e. perfect forward signing/secrecy, which doesn't seem logical, but, enlighten me? I'm no blockchain expert at all).
NVM, I found your bitbucket and the code.

This is really neat, but, the player has no way to verify that the server mod is the exact code that you posted. An evil server operator could just replace your code with a version that does no encryption at all, and then moderators could gain access to the data.

Without a CSM where the user controls the actual encryption, this isn't really giving the user much security.

However, it is a killer way to grant other players access to a safe and share them. I didn't check if other players that know the code can change the combination, but, that's not a big deal as that's how combination-only safes work usually. Even a key mechanism has it's flaws as players can give away keys to untrusted 3rd parties. Part of the game ;)

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Hybrid Dog
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Re: Post your videos!

by Hybrid Dog » Post

sofar wrote:Without a CSM where the user controls the actual encryption, this isn't really giving the user much security.

However, it is a killer way to grant other players access to a safe and share them. I didn't check if other players that know the code can change the combination, but, that's not a big deal as that's how combination-only safes work usually. Even a key mechanism has it's flaws as players can give away keys to untrusted 3rd parties. Part of the game ;)
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te‮tonnac ‭l‮renwo rev‭l key‮res eh‭s and‮t dna ,‭ pa‮rehto ‭ssw‮hc‭ord‮ae ‭s ‮ot
‮ .‭r‮rey‭e‮alp‭a‮ re‭d‮ht‭ t‮o e‭h‮ht setan‭e‮os‭m ex‮repmi ‭c‮yll‭ep‮ufss‭t‮ec‭ when ‮cus‭h‮ ehs/e

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sofar
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Re: Post your videos!

by sofar » Post

Hybrid Dog wrote: It‮dl‭ would‮uoc‭ b‮ s‭e‮re‭ ‮yal‭n‮p eht neht ;n‭ic‮oit‭e‮py‭ ‮rcne ‭t‮gsm‭o ‮/ MSC‭hav‮ e
te‮tonnac ‭l‮renwo rev‭l key‮res eh‭s and‮t dna ,‭ pa‮rehto ‭ssw‮hc‭ord‮ae ‭s ‮ot
‮ .‭r‮rey‭e‮alp‭a‮ re‭d‮ht‭ t‮o e‭h‮ht setan‭e‮os‭m ex‮repmi ‭c‮yll‭ep‮ufss‭t‮ec‭ when ‮cus‭h‮ ehs/e[/quote
And if the players had shared keys before hand, even that would fail.

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Extex
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Re: Post your videos!

by Extex » Post

Video Image
Sry but it requires a download to view
If anybody wants to record a video I'd be very happy
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Player of PK, RIP. Creator of the light_tool and motorbike mods. Working on another mod which should be coming soon!

Pokecat
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Re: Post your videos!

by Pokecat » Post

Been awhile, had to start over though. But it might be better that way.

https://youtu.be/saIm99HZOK0

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aristotle
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Re: Post your videos!

by aristotle » Post

If anyone is ready to attend a couple of creative classes on stairs and slabs...

HERE is my 1st attempt to provide a tutorial to the community.

I hope that it might be helpful to newbies and that experienced builders might reconsider a quite underrated mod such as Multinode Gates. Addi as well! ;)
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Mod Techage: In-game manuals (DE/EN) with construction plans

by joe7575 » Post

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https://youtu.be/YE8dF0HHQiE

The in-game manual is based on MD files that are also available on GitHub
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Sent from my Commodore 64. Some of my Mods: Tech Age, TechPack, Hyperloop, Tower Crane, Lumberjack, Iron Age, Minecart, Signs Bot.

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Walker
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Re: Post your videos!

by Walker » Post

I have now 208 videos in my German-Creative-Server-LetsPlay series ( in German )
> https://www.youtube.com/playlist?list=P ... TjuG0DHzwi

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jas
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Re: Post your videos!

by jas » Post

dark piano [29:25]
Image

Code: Select all

--wtfpl

play = {}

local rand = math.random
local step = 1
local players = {}
local internal_sounds = {}
local nodes = {}
local heartbeat = {ebb = 1, flow = -1}

local function sound_scrape()
	for k, v in pairs(nodes) do
		if v.sounds then
			for _, vv in pairs(v.sounds) do
				local n = vv.name
				if n ~= "" then
					if not internal_sounds[n] then
						internal_sounds[n] = 1
					end
				end
			end
		end
	end
end

play.sounds = {
	"play_c3h",
	"play_c3h",
	"play_c8l",
	"play_c8l",
}

local aplay = function(sound, spt)
	minetest.sound_play(sound, {
		pos = spt.pos,
		pitch = spt.pitch,
		gain = spt.gain,
	}, true)
end

play.play = function(sound, pos)
	-- find intensity values (affecting pitch and gain, mostly,
	-- as well as grains) in player setup
	local pitch = rand() / 3
	-- if pitch and/or gain is low enough
	local gain = rand() / 12
	-- extend duration of step/silence
	local f = function(x)
		return x + rand(-3, 3)
	end
	local ppos = vector.apply(pos, f)
	local spt = {
		pos = ppos,
		pitch = pitch,
		gain = gain,
	}
	aplay(sound, spt)
end

play.start = function(name)
	players[name].switched_on = true
end

play.stop = function(name)
	players[name].switched_on = false
end

local rplay = function(name, param)
	local player = minetest.get_player_by_name(name)
	local pos = player:get_pos()
	local sound = play.sounds[rand(#play.sounds)]
	local label = "Playing " .. sound
	play.play(sound, pos)
	if param == "internal" then
		for sound2, v in pairs(internal_sounds) do
			if rand() < 0.2 then
				label = label .. " + " .. sound2
				play.play(sound2, pos)
			end
		end
	end
	return true, label
end

local delay = 0

minetest.register_globalstep(function(dtime)
	--print(heartbeat.ebb, heartbeat.flow, delay)
	if heartbeat.ebb >= -1 then
		heartbeat.ebb = heartbeat.ebb - dtime / 2 / #players
		return
	end
	heartbeat.ebb = -1
	if heartbeat.flow <= 1 then
		heartbeat.flow = heartbeat.flow + dtime / 2 / #players
		return
	end
	heartbeat.ebb = -1
	if delay < rand(3, 6) then
		delay = delay + dtime * rand(12)
		return
	end
	delay = 0
	local r
	local rplayers = minetest.get_connected_players()
	for _, v in pairs(rplayers) do
		local name = v:get_player_name()
		if minetest.get_player_by_name(name) then
			if players[name].switched_on then
				_, r = rplay(name, "internal")
			end
		end
	end
end)

minetest.register_chatcommand("play", {
	description = "Play a sound",
	params = "[internal]",
	func = rplay,
})

minetest.register_chatcommand("ambient", {
	params = "on|off",
	func = function(name, param)
		local player = minetest.get_player_by_name(name)
		local meta = player:get_meta()
		if param == "off" or param == "false" then
			meta:set_string("ambient", "")
			players[name].switched_on = false
		elseif param == "on" or param == "true" then
			meta:set_string("ambient", "switched_on")
			players[name].switched_on = true
		end
		return true, tostring(players[name].switched_on)
	end,
})

minetest.register_on_mods_loaded(function()
	nodes = minetest.registered_nodes
	--sound_scrape()
end)

minetest.register_on_joinplayer(function(player)
	local switched_on = player:get_meta():get_string("ambient") == "switched_on"
	players[player:get_player_name()] = {switched_on = switched_on}
end)

minetest.register_on_leaveplayer(function(player)
	players[player:get_player_name()] = nil
end)
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jas
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Re: Post your videos!

by jas » Post

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Re: Post your videos!

by jas » Post

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Re: Post your videos!

by jas » Post


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jas
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Re: Post your videos!

by jas » Post


minetestgamer
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Re: Post your videos!

by minetestgamer » Post

my rollercoaster lol
sorry for lagginess
https://www.youtube.com/watch?v=1DNfxB76XKg

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apercy
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Re: Post your videos!

by apercy » Post


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aristotle
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Re: Post your videos!

by aristotle » Post

apercy wrote:
Sun May 17, 2020 02:08
Karttest development progress

https://www.youtube.com/watch?v=n3HyB8S ... e=youtu.be
Yay! It looks good! Really good! :D
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jas
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Re: Post your videos!

by jas » Post

tnt and lava! and antifire

Later I uploaded: https://www.youtube.com/watch?v=J6AWPferrz8 "Way Talkie Waypoints" is a two min video showing this feature.

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jas
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Re: Post your videos!

by jas » Post

Longplay III 31:31

I was going to test the video quality, but ended up playing for thirty minutes instead.

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jas
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Re: Post your videos!

by jas » Post


Chrysolite Azalea
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Re: Post your videos!

by Chrysolite Azalea » Post

Finally found some Mese ore in my mine.

https://open.tube/videos/watch/f9ca7004 ... 635b143b09

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Phoenixflo44
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Re: Post your videos!

by Phoenixflo44 » Post

I am currently rebuilding the Phoenix Hotel for the Karsthafen map, this time without any problems, I am taking on the whole new construction, this is the first part

Phoenix Hotel | Part 1
+ Spoiler

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Oil_boi
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Re: Post your videos!

by Oil_boi » Post

Well okay, this is me absolutely amazed by a circuit I created in my game:

https://youtu.be/8tLXGoIJ9tk
I like to make mods :D
I also made a patreon!

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