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Gruppenkauf "cointerra TerraMiner IV" - 100Th/s - Lieferung bis 15.01.2014 Biete
Genauere specs zu den ASICs von Cointerra habe ich hier gepostet: https://bitcoi…
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n/a | thanke | September 25, 2013, 06:46:28 AM |
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CoinTerra Demonstrates Working FPGA. Releases Additional ASIC Chip Details. Hardware
We have recently released a new video demonstrating a working FGPA, as well as a…
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n/a | thanke | September 25, 2013, 05:49:45 AM |
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Cointerra Deutschland Mining (Deutsch)
Hmmm kommt mir komisch vor. Schon klar das die nicht so bekannt sind in D. Wir l…
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n/a | thanke | September 25, 2013, 03:28:07 AM |
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Cointerra Deutschland Mining (Deutsch)
Hallo deutsche Mining-community.Es hat den Anschein, als sei Cointerra in Deutsc…
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n/a | thanke | September 24, 2013, 08:22:10 AM |
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[Sold] KNCminer day-1 Jupiter Computer hardware
Sold.I have a Jupiter miner for sale that ships on day 1 of KNC's shipping queue…
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n/a | thanke | July 23, 2013, 08:36:04 AM |
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Best-practice for savings account (non-hardware wallet) Development & Technical Discussion
Similar threads found here:https://bitcointalk.org/index.php?topic=163763.0https…
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n/a | thanke | July 17, 2013, 02:48:56 AM |
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[ANNOUNCE] Micro-payment channels implementation now in bitcoinj Development & Technical Discussion
If the protocol breaks (is interrupted) after the server has signed and returned…
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n/a | thanke | July 11, 2013, 07:48:18 AM |
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[ANNOUNCE] Micro-payment channels implementation now in bitcoinj Development & Technical Discussion
If the protocol breaks (is interrupted) after the server has signed and returned…
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n/a | thanke | July 11, 2013, 07:45:46 AM |
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[ANNOUNCE] Micro-payment channels implementation now in bitcoinj Development & Technical Discussion
If the protocol breaks (is interrupted) after the server has signed and returned…
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n/a | thanke | July 10, 2013, 04:11:32 PM |
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Auction for KNCminer pre-order #265, 10x Jupiter 1-500 Auctions
I have a pre-order for 10x Jupiter from the 1-500 batch for sale:if you do sell…
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n/a | thanke | June 09, 2013, 11:32:45 PM |
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Auction for KNCminer pre-order #265, 10x Jupiter 1-500 Auctions
Ended. Offer removed.
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n/a | thanke | June 10, 2013, 01:13:55 AM |
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[Not for sale anymore] KNCminer pre-order Digital goods
offer removed.
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n/a | thanke | June 09, 2013, 04:42:15 PM |
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[WTS] KNCminer pre-order 10x 1-500 Jupiter Digital goods
Still available as of now.
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n/a | thanke | June 09, 2013, 11:22:23 PM |
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Deterministic wallets Development & Technical Discussion
If we have P_i=HMAC(I_L,P)*G+P they can't do that. Did you mean P_i=HMAC(HMAC(se…
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n/a | thanke | May 13, 2013, 11:00:35 AM |
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Deterministic wallets Development & Technical Discussion
1. Can we reserve more than one bit of the number i for different kind of deriva…
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n/a | thanke | May 13, 2013, 05:29:24 AM |
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Deterministic wallets Development & Technical Discussion
How does it depend on the choice of hash function?I guess this is something pure…
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n/a | thanke | May 12, 2013, 11:36:42 AM |
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Deterministic wallets Development & Technical Discussion
You can prove that you know c_par such that both (I_L,I_R)=hash(c_par, K_par, i)…
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n/a | thanke | May 12, 2013, 10:55:20 AM |
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Deterministic wallets Development & Technical Discussion
BTW, there has not been a compelling argument for making I_L in type-2 depend on…
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n/a | thanke | May 12, 2013, 08:05:05 AM |
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Deterministic wallets Development & Technical Discussion
Btw, it is my intention with Armory to do exactly what you just said is out of s…
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n/a | thanke | May 12, 2013, 04:26:29 AM |
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Deterministic wallets Development & Technical Discussion
- get the basescript with GetCScript(id)Where does the CScript from if you don't…
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n/a | thanke | May 11, 2013, 12:44:39 PM |
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Deterministic wallets Development & Technical Discussion
I imagined constructing multisig addresses of a set of (potentially completely i…
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n/a | thanke | May 10, 2013, 09:46:27 AM |
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Deterministic wallets Development & Technical Discussion
I found an argument why the multiplier I_L in K_i := I_L *Kpar (or k_i := I_L*G…
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n/a | thanke | May 10, 2013, 07:09:38 AM |
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Deterministic wallets Development & Technical Discussion
About type-2.Here is a strong argument that re-using chaincodes across different…
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n/a | thanke | May 10, 2013, 07:56:22 AM |
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Deterministic wallets Development & Technical Discussion
True, the order of G is 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E…
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n/a | thanke | May 08, 2013, 06:24:50 AM |
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Deterministic wallets Development & Technical Discussion
3. Isn't it cleaner for type-1 if k_i is the direct output of a HMAC?Yes, it see…
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n/a | thanke | May 08, 2013, 05:11:24 AM |
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Deterministic wallets Development & Technical Discussion
Edit3: I mentioned in post #123 that we possibly do gain more security when the…
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n/a | thanke | May 08, 2013, 02:57:35 AM |
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Deterministic wallets Development & Technical Discussion
Edit2: You're hiding the output size of the HMAC there, it should be 512 bits, a…
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n/a | thanke | May 06, 2013, 03:56:01 AM |
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Deterministic wallets Development & Technical Discussion
[..] it's difficult to keep track of all the posts in this long thread:)Right ,…
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n/a | thanke | May 05, 2013, 12:14:07 PM |
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Deterministic wallets Development & Technical Discussion
I've updated the specification to use addition instead of multiplication, but no…
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n/a | thanke | May 05, 2013, 04:13:48 AM |
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Deterministic wallets Development & Technical Discussion
There can be reasonable scenarios where A and B know each other well, so A would…
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n/a | thanke | April 30, 2013, 07:49:23 AM |
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Deterministic wallets Development & Technical Discussion
Another general question: do we have any use cases for mixed trees? Should we ev…
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n/a | thanke | April 30, 2013, 03:50:12 AM |
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Deterministic wallets Development & Technical Discussion
A property that (seemingly) hasn't been discussed is the provability of the link…
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n/a | thanke | April 30, 2013, 01:42:57 AM |
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Deterministic wallets Development & Technical Discussion
There may be a different reason why you would want to use a "double-hash". The p…
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n/a | thanke | April 29, 2013, 01:07:53 AM |
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Deterministic wallets Development & Technical Discussion
IMHO having type-1 subaccounts in BIP32 is a great feature that enhances the sec…
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n/a | thanke | April 28, 2013, 11:46:15 AM |
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Deterministic wallets Development & Technical Discussion
thanke: regarding your scheme and use case where the chaincodes and keys are unl…
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n/a | thanke | April 28, 2013, 11:40:07 AM |
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Deterministic wallets Development & Technical Discussion
Are you asking if I agree with a) the modification of the public derivation is i…
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n/a | thanke | April 26, 2013, 02:37:06 AM |
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Deterministic wallets Development & Technical Discussion
(2) whether leakage of one particular privkey (e.g. the attacker received one pu…
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n/a | thanke | April 25, 2013, 04:22:03 PM |
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Deterministic wallets Development & Technical Discussion
Are you asking if I agree with a) the modification of the public derivation is i…
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n/a | thanke | April 25, 2013, 03:41:06 PM |
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Deterministic wallets Development & Technical Discussion
If you agree with me regarding this property, then wouldn't you also agree that…
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n/a | thanke | April 25, 2013, 03:58:01 PM |
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Deterministic wallets Development & Technical Discussion
thanke: the two properties that we were discussing are:(1) deriving the chaincod…
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n/a | thanke | April 25, 2013, 11:45:23 AM |
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Deterministic wallets Development & Technical Discussion
Nice overview about the dependencies. thanks.A general question: do we expect th…
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n/a | thanke | April 25, 2013, 03:55:29 AM |
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Deterministic wallets Development & Technical Discussion
About the two derivation types: We don't really need two cases of derivation in…
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n/a | thanke | April 24, 2013, 04:59:23 AM |
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Deterministic wallets Development & Technical Discussion
I still don't see how exactly it could be that "A creates a new K'par" and follo…
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n/a | thanke | April 24, 2013, 04:05:55 AM |
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Best-practice for savings account (non-hardware wallet) Development & Technical Discussion
Do we have any best-practices handling savings accounts (without hardware wallet…
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n/a | thanke | April 23, 2013, 05:23:57 AM |
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Deterministic wallets Development & Technical Discussion
Scenario is this: Server A is holding (K_par,c_par). Server B is being set-up in…
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n/a | thanke | April 23, 2013, 01:33:10 AM |
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Deterministic wallets Development & Technical Discussion
Scenario is this: Server A is holding (K_par,c_par). Server B is being set-up in…
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n/a | thanke | April 22, 2013, 08:59:53 AM |
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Deterministic wallets Development & Technical Discussion
I expect additive and multiplicative derivation to be equivalent in all "theoret…
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n/a | thanke | April 22, 2013, 09:15:00 AM |
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Deterministic wallets Development & Technical Discussion
Now a BIP32 specific question:Why are the child chaincodes derived from both the…
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n/a | thanke | April 17, 2013, 06:49:20 AM |
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Deterministic wallets Development & Technical Discussion
This makes me wonder whether it's still worth changing, though the implementatio…
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n/a | thanke | April 22, 2013, 07:45:50 AM |
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Deterministic wallets Development & Technical Discussion
I'm not sure that I understood your use case, could you please explain the exact…
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n/a | thanke | April 22, 2013, 06:26:56 AM |
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Deterministic wallets Development & Technical Discussion
Sure. I assume the attacker can only observe the blockchain. For any transaction…
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n/a | thanke | April 22, 2013, 05:25:39 AM |
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Protecting merchants from compromised webservers Development & Technical Discussion
Good point, any 128 bit hash is indeed enough to authenticate the root public ke…
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n/a | thanke | April 19, 2013, 05:30:31 PM |
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Deterministic wallets Development & Technical Discussion
The proposal would be: k_i = k_par + I_LK_i = K_par + I_L*G[ ... ]It is not less…
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n/a | thanke | April 22, 2013, 03:09:24 AM |
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Reminder: zero-conf is not safe; $500USD reward posted for replace-by-fee patch Development & Technical Discussion
Isn't replace-by-fee incompatible with miners grouping transactions and evaluati…
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n/a | thanke | April 19, 2013, 03:33:08 AM |
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Deterministic wallets Development & Technical Discussion
Maybe I'm overlooking something and should read the code.. but how does modifyin…
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n/a | thanke | April 17, 2013, 12:50:35 PM |
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Deterministic wallets Development & Technical Discussion
It doesn't complicate implementation because I consider it a trivial change. It…
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n/a | thanke | April 17, 2013, 09:42:41 AM |
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Deterministic wallets Development & Technical Discussion
Countering the above cited comment: what do we gain by having ci depend on Kpar?…
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n/a | thanke | April 17, 2013, 09:05:18 AM |
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Deterministic wallets Development & Technical Discussion
Regarding using addition instead of multiplication: we switched to multiplicatio…
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n/a | thanke | April 17, 2013, 04:06:19 AM |
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[ANNOUNCE] Electrum - Lightweight Bitcoin Client Electrum
version 1.7.2 is outIs there another source for the md5sums besides electrum.org…
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n/a | thanke | April 08, 2013, 10:11:14 AM |
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[ANNOUNCE] Electrum - Lightweight Bitcoin Client Electrum
version 1.7.2 is outIs there another source for the md5sums besides electrum.org…
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n/a | thanke | April 08, 2013, 09:41:24 AM |
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How a floating blocksize limit inevitably leads towards centralization Development & Technical Discussion
What was the talk about "O(n^2) scaling problems" about? I fail to see this is r…
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n/a | thanke | February 20, 2013, 02:04:46 AM |
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Can i borrow some testnet coins? Bitcoin Technical Support
sooooo... i'm connected to testnet with Blockexplorer.com as a node, I've mined…
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n/a | thanke | January 10, 2013, 04:03:37 AM |
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Best way to make user proof that he owns address? Development & Technical Discussion
The way to do this without signatures is a Diffie-Hellman key exchange (look up…
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n/a | thanke | January 02, 2013, 05:01:26 PM |
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Standardizing Bitcoin Terminology Development & Technical Discussion
Another aspect when talking about properties of "wallets": what about distinguis…
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n/a | thanke | December 31, 2012, 11:44:34 AM |
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Protecting merchants from compromised webservers Development & Technical Discussion
I'm liking the hack the more I think about it, too. Encoding a compressed public…
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n/a | thanke | December 25, 2012, 06:10:18 PM |
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Protecting merchants from compromised webservers Development & Technical Discussion
I'm liking the hack the more I think about it, too. Encoding a compressed public…
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n/a | thanke | December 24, 2012, 07:32:13 PM |
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[PROPOSAL] Untrackable addresses Development & Technical Discussion
Cool idea!However, if someone sends money twice from the same normal address to…
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n/a | thanke | December 20, 2012, 03:42:27 PM |
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[PROPOSAL] Secure Payment Protocol Development & Technical Discussion
We would like to propose a payment protocol with a lot of interesting features:H…
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n/a | thanke | December 12, 2012, 04:55:10 PM |
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Protecting merchants from compromised webservers Development & Technical Discussion
CAs will issue you multi-domain certificates for not a WHOLE lot more than a sin…
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n/a | thanke | December 20, 2012, 02:31:31 PM |
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[PROPOSAL] Secure Payment Protocol Development & Technical Discussion
But with DNSSEC, that is no longer the case, because the credentials you need to…
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n/a | thanke | December 20, 2012, 02:20:59 PM |
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Deterministic wallets Development & Technical Discussion
I don't really see what you mean by "to combine them into a pair, if they may ge…
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n/a | thanke | December 20, 2012, 01:39:47 PM |
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[PROPOSAL] Secure Payment Protocol Development & Technical Discussion
But one of the things I've been thinking about for post-1.0 payment protocol spe…
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n/a | thanke | December 17, 2012, 05:12:52 AM |
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[PROPOSAL] Secure Payment Protocol Development & Technical Discussion
Merchants register an alias 'amazon' first in the blockchainIs that what namecoi…
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n/a | thanke | December 16, 2012, 04:02:04 AM |
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[PROPOSAL] Secure Payment Protocol Development & Technical Discussion
Then again, maybe not-- DNSSEC/DANE might make the CAs obsolete.What if you want…
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n/a | thanke | December 16, 2012, 03:56:08 AM |
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BIP 38 Discussion Thread - Passphrase-Protected Private Key Format Development & Technical Discussion
I think I have come to the conclusion that a brand new intermediate code per add…
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n/a | thanke | December 14, 2012, 12:43:02 PM |
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[PROPOSAL] Secure Payment Protocol Development & Technical Discussion
Then we could indeed put a base ECDSA key into the new cert type.Not only a base…
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n/a | thanke | December 13, 2012, 12:58:28 PM |
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[PROPOSAL] Secure Payment Protocol Development & Technical Discussion
Thanks for sharing the insight how the decisions made so far about the payment p…
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n/a | thanke | December 14, 2012, 12:23:02 PM |
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[PROPOSAL] Secure Payment Protocol Development & Technical Discussion
I'm confused. Are you arguing against the usage of X.509 certs or not?So far, ne…
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n/a | thanke | December 14, 2012, 05:13:58 AM |
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Protecting merchants from compromised webservers Development & Technical Discussion
The availability of such solutions should be strongly considered. Great idea, a…
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n/a | thanke | December 14, 2012, 04:21:01 AM |
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[PROPOSAL] Secure Payment Protocol Development & Technical Discussion
I like the idea of the "bill" (aka contract aka "PaymentRequest") determining th…
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n/a | thanke | December 13, 2012, 12:43:59 PM |
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[PROPOSAL] Secure Payment Protocol Development & Technical Discussion
My primary thought having scan read it is that your system is a lot more complex…
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n/a | thanke | December 13, 2012, 12:23:58 PM |
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BIP 38 Discussion Thread - Passphrase-Protected Private Key Format Development & Technical Discussion
Shouldn't reusing the intermediate_code be forbidden?If intermediate_code is reu…
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n/a | thanke | December 12, 2012, 10:58:04 AM |
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BIP 38 Discussion Thread - Passphrase-Protected Private Key Format Development & Technical Discussion
Satoshi has essentially described it as a cheap measure of protection against we…
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n/a | thanke | December 11, 2012, 02:01:41 PM |
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BIP 38 Discussion Thread - Passphrase-Protected Private Key Format Development & Technical Discussion
Shouldn't reusing the intermediate_code be forbidden?If intermediate_code is reu…
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n/a | thanke | December 11, 2012, 04:03:46 PM |
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BIP 38 Discussion Thread - Passphrase-Protected Private Key Format Development & Technical Discussion
I don't know why we use double-hash. Recommended reading: Practical Cryptography…
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n/a | thanke | December 11, 2012, 01:54:03 PM |
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BIP 38 Discussion Thread - Passphrase-Protected Private Key Format Development & Technical Discussion
What is the purpose of AES encryption in the second method (EC multiply mode)?Yo…
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n/a | thanke | December 11, 2012, 11:48:08 AM |
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BIP 38 Discussion Thread - Passphrase-Protected Private Key Format Development & Technical Discussion
What is the purpose of AES encryption in the second method (EC multiply mode)?Yo…
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n/a | thanke | December 10, 2012, 03:54:14 PM |
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BIP 38 Discussion Thread - Passphrase-Protected Private Key Format Development & Technical Discussion
EC addition has a security flaw but it only affects a very specific use case and…
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n/a | thanke | December 09, 2012, 02:43:55 AM |
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BIP 38 Discussion Thread - Passphrase-Protected Private Key Format Development & Technical Discussion
What is the purpose of AES encryption in the second method (EC multiply mode)?Yo…
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n/a | thanke | December 09, 2012, 02:39:33 AM |
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Deterministic wallets Development & Technical Discussion
Now a BIP32 specific question:Why are the child chaincodes derived from both the…
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n/a | thanke | December 06, 2012, 02:41:56 PM |
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You think you don't need to trust blockchain.info ? Think again Service Discussion
Why does blockchain's mywallet use a JS wallet and a browser plugin to verify it…
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n/a | thanke | December 06, 2012, 02:53:03 PM |
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Deterministic wallets Development & Technical Discussion
As far as key hierarchies go, do we have any significant application for it yet?…
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n/a | thanke | December 06, 2012, 09:55:15 AM |
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Deterministic wallets Development & Technical Discussion
Here are my questions for BIP32:Assuming all chain codes are known, if private k…
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n/a | thanke | December 06, 2012, 06:25:09 AM |
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Deterministic wallets Development & Technical Discussion
Type-1 deterministic wallets seem to be a more suitable default.I think that the…
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n/a | thanke | December 06, 2012, 04:51:10 AM |
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Deterministic wallets Development & Technical Discussion
Conclusion: In a scenario where derived secret keys are handed over to subbranch…
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n/a | thanke | December 06, 2012, 02:56:48 AM |
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Idea for Highly Secure Paper Wallet - Using Split Keys Development & Technical Discussion
Either system could be compromised in any way and as long as the same person/gro…
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n/a | thanke | October 11, 2012, 01:30:57 PM |
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Deterministic wallets and sharing private keys Beginners & Help
One way to allow key import that would have a convenient side effect: encourage…
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n/a | thanke | October 04, 2012, 04:38:49 AM |
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Deterministic wallets and sharing private keys Beginners & Help
As now clarified:the latter. people should not transfer value by communicating a…
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n/a | thanke | October 03, 2012, 07:33:05 AM |
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Deterministic wallets and sharing private keys Beginners & Help
Correct. Well, to be precise, you also need the seed S (besides the master publi…
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n/a | thanke | October 03, 2012, 08:53:46 AM |
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Deterministic wallets and sharing private keys Beginners & Help
That's just it... ideally, the key I redeemed would be a paper wallet that exis…
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n/a | thanke | October 03, 2012, 08:30:42 AM |
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