2. What are some of the possible defenses?
write them all down on good old paper. or sae them on anything that is not electronical. |
|
|
|
it just looks wrong! try to disable hebrew, or something. |
|
|
|
VIA has an SHA-2 like the ones on HD cards?
Maybe the miners are not aware of that...
Is more...I think is possible... On the discussion about the FPGA miner use the function for verifying anyways.
it has been tested, but it did not give a goo Mhash/s |
|
|
|
is can AFAIK only do sha-1, and we need sha-2. but i does not think in any way it would help much some VIA processors haves sha-2 engines, but they don't gives much Mhash |
|
|
|
just did think that you should know  |
|
|
|
do really don't understand it do you?
of course, they are stored as hashes. but when you need to proof that you know the plain text, YOU NEED TO SEND THE PLAINTEXT. and the attacker can just capture it, and retransmit a transaction that send your coin to him.
unless you understand this, please don't say more.
instead of say such unpolite things, i try to solve this "misunderstanding" you think i have... So i ask the same in another way, how does it work that the Private key in the wallet.dat is not send in plaintext? (or is this wrong and the privatekey is actually send in Plaintext??) Just answer this if you know. the private key is not send in plaintext, this is your misunderstading. bitcoin uses public-key-cryptography. the algoritm used is called ECDSA. (look it up on wikipedia). the private key is used for signing the transaction. and this sign can be verifyed be using a public. this is how it works: your client generates a private and public key pair. by taking a hash of the public key, you get a bitcoin address. you gives your address to someone, and tell him to pay. he sends you the transaction by saying: "only the person who can proof that he has the corresponding privatekey, to this address, can spend this x bitcoins", this is signed by his privatekey(s) your client sees this and knows that you now haves x bitcoins more. when your client wants to spend it, it broadcasts the public key, along with a signing from the private key, that proofs that your client knows the private key. your client therefor NEVER broadcasts your private key, only proof that you have it. and an attaker can not, intercept and change the transaction, without making the transaction invalid. want to read more: http://en.wikipedia.org/wiki/Public-key_cryptographyi will be glad to explain more to you. but dont try to change anything without trying to understand first, it makes me angry! |
|
|
|
|
do really don't understand it do you?
of course, they are stored as hashes. but when you need to proof that you know the plain text, YOU NEED TO SEND THE PLAINTEXT. and the attacker can just capture it, and retransmit a transaction that send your coin to him.
unless you understand this, please don't say more.
|
|
|
|
The first rule of Bitcoin is: You don't change the protocol
The second rule of Bitcoin is: You don't change the protocol
The third rule is: If you are new to Bitcoin, you have to think of ways the protocol should be changed... Which is why I suspect there will probably be a bitcoin2 one day with a migration path to transfer bitcoin1's into it. Bitcoin is really in beta still. It's a very neat design with a number of checks and balances built into it but it's really only starting to be tested properly in the last couple of months. Both the code and rules of the system need to withstand a lot of external factors that it won't face until the economy gets bigger and many which may never be predicted before they happen. This will inevitably highlight weaknesses in the design that can be rectified by tweaking it. You can't realistically keep tweaking the current bitcoin, it will undermine confidence if the rules keep changing. So the best solution is to eventually come up with a bitcoin2 standard and migrate. Leave the existing bitcoin in place and people can migrate as they see fit. Market forces will determine whether btc 1 or 2 will prevail and then the loser will die out completely. As it becomes clear that bitcoin2 is going to become the standard bitcoin1 value will start to drop and motivate people to migrate. I find it very suspicious that all BTC addresses currently start with a 1. That makes me think that there will be a "2". no it just likely that is the address format. like a "1" for ECDSA, and "2" for RSA, 3 for new unknown scheme. using RSA instead of ECDSA, will not break bitcoin, or fork the chain. just giving people more flexibly |
|
|
|
I know that Wallet encyption comes maybe, my focus is on the TAN system.
Like i wrote it should be possible in the same way like the Bitcoin-network saves
the valid transactions.
So why not just store valid TANs via hashs (encrypted, not plain) in the network too?
(when they are plaintext, everybody just harvest them :-), they must be
encrypted)
There are two problems associated with this approach: 1. Storage space is limited in the block chain as it is mirrored on all clients. If you're allowing random clients save their TAN in the network, it could be easily spammed. So you would have to introduce a fee for saving TAN hashes in the network, similar to the transaction fee. 2. Online banking TANs with their 6 numbers have a very small search space which is only secure because your bank locks your account after 3 or so wrong entries. This is not possible in Bitcoin because you can brute force the public TAN hashes offline. Thus, the TANs must be impractically long like 30 characters or so. and if they are 30chars long, we are back to the beginning. @X68N: do you really think we are stupider then you? |
|
|
|
Thanks for the first answer on this .
I know that Wallet encyption comes maybe, my focus is on the TAN system.
Like i wrote it should be possible in the same way like the Bitcoin-network saves
the valid transactions.
So why not just store valid TANs via hashs (encrypted, not plain) in the network too?
(when they are plaintext, everybody just harvest them :-), they must be
encrypted)
The interaction with the Network, could be done the first Time the wallet is created,
or with the help of a second communication channel.
(the Network generates the TANs and send them to a predefined emailadress so,
the TAN can printed out by another PC so the risk can be lowered)
I think that this would be a great soloution.
you really don't know how it works, right? as soon as you broadcast your TAN codes to the network, anyone else could take it and use your money. scenario: Node A, is your node. Node A knows Node B-Z, which you don't know anything about. Node B-Z was placed by an attacker, they are cancer nodes, they does not rebroadcast your transaction, instead they capture your TAN codes and gives them to the attacker. this sucks. you don't know any thing about this, and therefor you can only be protected from by publickey-cryptography. |
|
|
|
lardy, can we put a stamp on you also have to come back if you are wrong? How about 6 months to a year, if Bitcoin is booming, you come and apologize.
+1 |
|
|
|
the light over this: root is a administrative user, and should not be used, unless the powers of being root is necessary. it is really very simple to make another user: but in this case a cant see why you cant use root. but don't do it anyway |
|
|
|
Everyone loves to make money. If bitcoin continues to rise in value, more shops will want to cash in on the trend and start to adopt bitcoins. As more shops take bitcoins, more will follow leading to a positive spiral.
and more people will not buy, cause tomorrow they value has just doubled. |
|
|
|
FUD, the price has droped more and recovred.  |
|
|
|
ITS A SCAM!
There's a shocker!! bitcoinbuiler will be sat there laughing at how you fell for the simplest of pyramid schemes. i did not fell for it. but it smells so fucking bad of SCAM. |
|
|
|
and by you sponsoring it you are part of the immorality?
i am christian so i have to admit it sometimes i have trouble sleeping at night.
its a simple thing: Money(btc, usd, eur, ...) will be used do buy/finance illegal stuff. and btw. there is no terrorism, they are all just freedom fighters.  and drug related crimes, would not exist if drugs was legal. how often do you see alcohol/coffee related crimes? i think that drugs should be legal, and governments should stop having a war against it, and they should focus more on drug addicts. |
|
|
|
Absolutely awesome! Any news on the progress? yes! i am working on designing it. we will have a beta working in a week or two. |
|
|
|
|
graet idea!
but bitcoin is still too young, and its is still testing/beta software.
wait maybe 2-5 years then it would be the biggest thing, but right now it could be more like a major FAIL!
|
|
|
|
I have had a hard time claiming my account but I reached out to MagicalTux on freenode and he took care of it right then. Thank you MagicalTux for your quick response.
+1 he did the same thing for me |
|
|
|
|
Show Posts
