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Topic: Not a alt-coin, but better. Alt-communications (Read 1812 times)

hero member
Activity: 518
Merit: 500
Manateeeeeeees
February 28, 2013, 08:18:32 PM
#25
They announced a new feature yesterday: broadcast addresses:

Quote
Bitmessage 0.2.6 is available. It is a non-critical release with new features:
--  Pseudo-mailing-lists --
When you right-click one of your addresses, you will see a new option: 'Special address behavior...'. There, you may enable the pseudo-mailing-list feature. When enabled, the address will behave as if it is a mailing list: all messages send there will be broadcast out for anyone to see. Users must subscribe to the address to receive the broadcast just like normal. Note that there is no actual mailing list. A user who sets up the pseudo-mailing-list would advertise it by saying something like, "Here is the Newtown Cycling group's new subscription address: BM-abcefghASDFqwerasdfdfQWr. Do subscribe to it and send any status updates to that address for everyone to read! Remember to sign your messages with your name!"
There currently is no user management interface for the pseudo-mailing-lists but you can use the Blacklist/Whitelist to limit the users who may participate.

-- Portable Mode --
Available in the settings, this mode moves the config files to the same directory where Bitmessage is running. This makes it easy to run the client from USB drives and take your messages and keys with you, or to use Truecrypt, or both.

Thanks everyone!
Atheros

https://bitmessage.org/
https://github.com/Bitmessage/PyBitmessage

I made one for this thread.  Subscribe to it: BM-BcLrmwzaeGhJncHC14oq2p4X9pB7d3Ts
I'll try to send out an update there shortly...
legendary
Activity: 882
Merit: 1001
I'm going to send everyone who posted an address in this thread a message. You better reply!

Here's mine: BM-oqi13JFqrJYGPsSRAoFJEGD6vStmRFCuG
sr. member
Activity: 252
Merit: 250
I'll give it a try, why not.

BM-BcJfZ82sHqW75YYBydFb868yAp1WGh3v
staff
Activity: 4242
Merit: 8672
I noticed that when you send a message the CPU maxes to 100% for about 2.5 minutes.  I assume this is the lengthy ECC crypto algorithm running.
Uh. No. ECC is quite fast. It's the proof of work. As mentioned above, this system uses proof of work to rate limit message publication.
hero member
Activity: 518
Merit: 500
Manateeeeeeees
https://ppcexchange.bitparking.com/main

Just noticed they broadcast via bitmessage... here's the address you can subscribe to:

BM-BbgTgGa6LX3yYqwJSwdwrzysvfWjM2u6
legendary
Activity: 916
Merit: 1003
I noticed that when you send a message the CPU maxes to 100% for about 2.5 minutes.  I assume this is the lengthy ECC crypto algorithm running.
Surely this could be offloaded to a GPU using OpenCL.
hero member
Activity: 518
Merit: 500
Manateeeeeeees
BM-BcZTQaxiogFfL67s4AEHapDJjEa9R9Lr

I just sent everyone who posted above a message.  Hit me back if you got it!
legendary
Activity: 1078
Merit: 1005
A lot of the decisions in it seemed weird and unfortunate to me— E.g. it uses ginormous RSA keys instead of compact compressed ECC pubkeys.  It uses addresses which are key hashes, when it actually needs a pubkeys to communicate— so the elegant and strongly secure broadcast medium is compromised by having to have an interactive/online key exchange the first time you send someone a message why not make the address be a pubkey?— it wouldn't even be any longer.
Some of this has changed, for example ECC is now used. The initial key exchange is still there unfortunately.
staff
Activity: 4242
Merit: 8672
A lot of the decisions in it seemed weird and unfortunate to me— E.g. it uses ginormous RSA keys instead of compact compressed ECC pubkeys.  It uses addresses which are key hashes, when it actually needs a pubkeys to communicate— so the elegant and strongly secure broadcast medium is compromised by having to have an interactive/online key exchange the first time you send someone a message why not make the address be a pubkey?— it wouldn't even be any longer.

When it was first announced I exchanged some messages with some people on #bitcoin-dev, but since it wouldn't work with my tiling window manager I didn't continue to use it. Smiley
sr. member
Activity: 258
Merit: 250
You can trust me, I have an avatar
Very cool  Cool

BM-BcZJ1gsbDGgjccyDmgbBNjMQA6iEc4Zm

I sent a few messages out but no replies yet. Feel free to send.
legendary
Activity: 916
Merit: 1003
Woohoo.  My address is BM-ooqMp3Pzg4b4nhrsJ69rGfYBvMi6Qfwft

Hit me up, yo.
legendary
Activity: 1611
Merit: 1001
bump for an awesome idea

i'd like to see this used more!

BM-Bcbnfga5rzxsWyjnSfmLHPYJffNUFGNC
sr. member
Activity: 462
Merit: 250
What benefit do miners receive for running the network since there is no currency?
There are no miners. A proof of work is done by the sender when a message is sent.

Which proof of work algorithm?

Quote from: Altheros
The POW currently used is just like Bitcoin's POW except that the difficulty doesn't adjust based on the number of people sending messages, only the size of the individual message. I can give you more specific details if you would like them. I would like to change to a GPU resistant algorithm and am currently researching Sergio_Demian_Lerner's MAVEPAY  POW algorithm and scrypt. I would happily look into other suggestions as well.

The Bitmessage system doesn't have an equivalent system to Bitcoin's blocks. After the POW is completed, message are sent and received within seconds.

https://bitmessage.org/forum/index.php/topic,865.msg892.html#msg892
legendary
Activity: 2492
Merit: 1473
LEALANA Bitcoin Grim Reaper
What benefit do miners receive for running the network since there is no currency?
There are no miners. A proof of work is done by the sender when a message is sent.

Which proof of work algorithm?
legendary
Activity: 1078
Merit: 1005
What benefit do miners receive for running the network since there is no currency?
There are no miners. A proof of work is done by the sender when a message is sent.
legendary
Activity: 1078
Merit: 1005
IRC discussion going on in EFNet in #bitmessage if anyone's interested. There's also a reddit /r/bitmessage.
sr. member
Activity: 462
Merit: 250
Well, my node is up and running to give this a go.. anyone is free to send me a message to try it out.

BM-BbkHMfwKznBbHFBGtrx92cMc5cyvdzzT
legendary
Activity: 1204
Merit: 1002
RUM AND CARROTS: A PIRATE LIFE FOR ME
this is really cool.

What benefit do miners receive for running the network since there is no currency?

I guess none- but maybe down the line someone can create a client that looks like "email"- like "whatsapp" or something like that. Although to be honest- I can't imagine how this would scale. It says it would keep messages for just 2 days or something like that, but if it were email thats hundreds of millions of messages.
legendary
Activity: 1484
Merit: 1026
In Cryptocoins I Trust
this is really cool.

What benefit do miners receive for running the network since there is no currency?
legendary
Activity: 1611
Merit: 1001
this is awesome! i've been hoping something like this would be made for a long time!

is it possible to 51% attack something like this?
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