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P2PTradeX: P2P Trading between cryptocurrencies Development & Technical Discussion
such as the race conditionNo, that's why it's called "atomic", either both parti…
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n/a | iddo | June 23, 2013, 08:01:00 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 | iddo | May 12, 2013, 11:19:35 AM |
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blind symmetric commitment for stronger byzantine voting resilience Development & Technical Discussion
Going back to the commit definition (symmetric version, with defense against ins…
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n/a | iddo | May 23, 2013, 07:50:32 AM |
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blind symmetric commitment for stronger byzantine voting resilience Development & Technical Discussion
Also the committed coin cant be locked by someone malicious who knows the public…
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n/a | iddo | May 21, 2013, 06:34:06 AM |
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Alt chains and atomic transfers Development & Technical Discussion
The worst A can do is defect and refuse to unlock the coins he sent B, until he…
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n/a | iddo | May 21, 2013, 10:36:50 AM |
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blind symmetric commitment for stronger byzantine voting resilience Development & Technical Discussion
For simplicity, if we set aside compatibility with Bitcoin and consider designin…
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n/a | iddo | May 17, 2013, 02:00:23 PM |
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future concept: simple way to update blockchain Development & Technical Discussion
Excellent idea, I nominate you to be a leading member of the central committee t…
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n/a | iddo | May 17, 2013, 01:37:10 PM |
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blind symmetric commitment for stronger byzantine voting resilience Development & Technical Discussion
Hello Adam,The plan is actually to move in the opposite direction soon (link), b…
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n/a | iddo | May 16, 2013, 07:08:47 PM |
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blind symmetric commitment for stronger byzantine voting resilience Development & Technical Discussion
You said here that the network won't allow Alice to double-spend because when Al…
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n/a | iddo | May 16, 2013, 11:58:11 AM |
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blind symmetric commitment for stronger byzantine voting resilience Development & Technical Discussion
Suppose Alice has some (e.g. tainted) coins and she wishes to buy a product from…
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n/a | iddo | May 15, 2013, 09:37:40 PM |
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blind symmetric commitment for stronger byzantine voting resilience Development & Technical Discussion
Suppose Alice has some (e.g. tainted) coins and she wishes to buy a product from…
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n/a | iddo | May 15, 2013, 08:28:51 PM |
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blind symmetric commitment for stronger byzantine voting resilience Development & Technical Discussion
Suppose Alice has some (e.g. tainted) coins and she wishes to buy a product from…
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n/a | iddo | May 15, 2013, 07:33:06 PM |
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blind symmetric commitment for stronger byzantine voting resilience Development & Technical Discussion
Suppose Alice has some (e.g. tainted) coins and she wishes to buy a product from…
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n/a | iddo | May 15, 2013, 05:36:47 PM |
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blind symmetric commitment for stronger byzantine voting resilience Development & Technical Discussion
Why wouldn't the big miners cartel still be able to impose their greedy/maliciou…
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n/a | iddo | May 15, 2013, 03:12:10 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 | iddo | May 13, 2013, 07:49:49 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 | iddo | May 12, 2013, 01:54:21 PM |
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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 | iddo | May 12, 2013, 09:40:32 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 | iddo | May 12, 2013, 08:51:04 AM |
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Deterministic wallets Development & Technical Discussion
If you consider hierarchies of multisig addresses this turns into an argument wh…
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n/a | iddo | May 10, 2013, 08:59:28 PM |
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Concerns regarding deterministic wallet Development & Technical Discussion
Would be nice if the wallet had a user defined seed size.Yes it would be nice, w…
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n/a | iddo | May 10, 2013, 01:38:34 PM |
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Deterministic wallets Development & Technical Discussion
The reason for specifying that I_L >= n isn't allowed is indeed to guarantee uni…
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n/a | iddo | May 09, 2013, 01:14:57 PM |
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Deterministic wallets Development & Technical Discussion
I still agree with thanke that for type-1 derivation it makes slightly more sens…
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n/a | iddo | May 08, 2013, 04:28:46 PM |
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Deterministic wallets Development & Technical Discussion
It is generally discouraged to receive more than one payment to the same address…
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n/a | iddo | May 08, 2013, 04:27:22 PM |
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Deterministic wallets Development & Technical Discussion
Since n = 2^256 - 2^32 - 2^9 - 2^8 - 2^7 - 2^6 - 2^4 - 1 the case I_L >= n occu…
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n/a | iddo | May 08, 2013, 05:15:40 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 | iddo | May 08, 2013, 04:08:01 AM |
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Alt chains and atomic transfers Development & Technical Discussion
Quote5) To avoid extortion, we can use nlocktime (similarly to how it's used in…
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n/a | iddo | May 07, 2013, 09:09:23 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 | iddo | May 07, 2013, 07:44:50 AM |
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Alt chains and atomic transfers Development & Technical Discussion
I'm not completely sure whether I understood your objective here, and I also did…
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n/a | iddo | May 07, 2013, 05:23:49 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 | iddo | May 05, 2013, 04:33:44 PM |
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Deterministic wallets Development & Technical Discussion
Is there a use case to allow updating keys without updating chain codes, that's…
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n/a | iddo | May 05, 2013, 11:13:56 AM |
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Deterministic wallets Development & Technical Discussion
QuoteDoesn't it break type-1 derivations?Of course, type-1 would be left at (I_L…
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n/a | iddo | May 05, 2013, 12:27:14 PM |
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Deterministic wallets Development & Technical Discussion
2. Additive vs multiplicative: I don't know what your status is regarding consta…
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n/a | iddo | May 05, 2013, 11:45:07 AM |
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Deterministic wallets Development & Technical Discussion
Wouldn't it just be simpler to add the base point incrementally? Why not just st…
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n/a | iddo | May 04, 2013, 12:41:43 AM |
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Deterministic wallets Development & Technical Discussion
Hello Pieter,Is there a use case to allow updating keys without updating chain c…
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n/a | iddo | May 03, 2013, 01:05:27 PM |
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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 | iddo | April 30, 2013, 09:41:10 AM |
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Deterministic wallets Development & Technical Discussion
I am not convinced that we need a public derivation after a secret one. You are…
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n/a | iddo | April 30, 2013, 05:03:20 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 | iddo | April 29, 2013, 03:28:22 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 | iddo | April 28, 2013, 02:12:49 PM |
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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 | iddo | April 28, 2013, 12:55:51 PM |
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Deterministic wallets Development & Technical Discussion
No, solving K_i=x*K_par for x is the discrete log problem.Oops, you're right, ap…
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n/a | iddo | April 28, 2013, 12:40:00 PM |
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Deterministic Wallets and ECDSA Development & Technical Discussion
Also, careful implementations design their generation functions so that even if…
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n/a | iddo | April 28, 2013, 10:17:02 AM |
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Deterministic Wallets and ECDSA Development & Technical Discussion
My understanding is that if either k or dA are NOT truly random an attack could…
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n/a | iddo | April 28, 2013, 09:31:55 AM |
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Deterministic Wallets and ECDSA Development & Technical Discussion
Also, careful implementations design their generation functions so that even if…
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n/a | iddo | April 28, 2013, 09:42:48 AM |
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Deterministic wallets Development & Technical Discussion
@iddo: have a look at https://bitcointalk.org/index.php?topic=102349.0This is ev…
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n/a | iddo | April 28, 2013, 05:34:29 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 | iddo | April 27, 2013, 06:10:19 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 | iddo | April 26, 2013, 08:21:06 PM |
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23-04-2013 Ron Paul slams stability of U.S. dollar and Bitcoin in pro-gold rant Press
I created a public response to Dr. Paul. Here it is. I would be really happy i…
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n/a | iddo | April 26, 2013, 10:06:02 AM |
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NVC giveaway !!! Trade it, use it, enjoy it. Only 2nd after BTC by price Altcoin Discussion
4JxxqiEiQFebV6SoPJdTkBNaLYVdPx2NaYthanks
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n/a | iddo | April 26, 2013, 10:04:58 AM |
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Deterministic wallets Development & Technical Discussion
(one of the chaincodes can replace the privkey as in #180, so it would still be…
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n/a | iddo | April 26, 2013, 03:51:06 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 | iddo | April 26, 2013, 03:43:08 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 | iddo | April 25, 2013, 04:50:00 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 | iddo | April 25, 2013, 01:16:51 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 | iddo | April 25, 2013, 06:03:38 AM |
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Deterministic wallets Development & Technical Discussion
thanke, let's see if I understand correctly the outlining dependencies when we c…
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n/a | iddo | April 24, 2013, 02:32:11 PM |
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Deterministic wallets Development & Technical Discussion
@iddo: have a look at https://bitcointalk.org/index.php?topic=102349.0Nice. If I…
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n/a | iddo | April 24, 2013, 04:46:09 AM |
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Deterministic wallets Development & Technical Discussion
Another issue that's external to BIP32, but related to users shooting themselves…
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n/a | iddo | April 23, 2013, 02:20:21 PM |
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Deterministic wallets Development & Technical Discussion
thanke, the only reason to unlink the chaincodes from the keys is to avoid the s…
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n/a | iddo | April 23, 2013, 06:43:41 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 | iddo | April 23, 2013, 05:26:55 AM |
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Deterministic wallets Development & Technical Discussion
This isn't exactly a use case, true. It is just something that is possible if I…
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n/a | iddo | April 23, 2013, 04:48:43 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 | iddo | April 22, 2013, 03:11:38 PM |
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Deterministic wallets Development & Technical Discussion
Where does the 2^32 figure come from? The proposal does not require consecutive…
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n/a | iddo | April 22, 2013, 08:51:41 AM |
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Deterministic wallets Development & Technical Discussion
I still believe that for the default wallet layout (subaccounts at level 1 and l…
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n/a | iddo | April 22, 2013, 08:27:19 AM |
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Deterministic wallets Development & Technical Discussion
Seems to me that additive vs multiplicative derivation is not the point. Instead…
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n/a | iddo | April 22, 2013, 08:13:30 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 | iddo | April 22, 2013, 07:53:09 AM |
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Deterministic wallets Development & Technical Discussion
I suggest to set and serialize maximum i for each extended key. Such serialized…
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n/a | iddo | April 22, 2013, 07:25:24 AM |
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Deterministic wallets Development & Technical Discussion
With the additive variant, don't you get I_L*G from parent and a child pubkeys,…
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n/a | iddo | April 22, 2013, 05:36:09 AM |
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Deterministic wallets Development & Technical Discussion
I suggest to set and serialize maximum i for each extended key. Such serialized…
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n/a | iddo | April 22, 2013, 02:59:21 AM |
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Deterministic wallets Development & Technical Discussion
I'm still hoping to hear some explanation on why the multiplicative variant is a…
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n/a | iddo | April 21, 2013, 05:55:22 PM |
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Deterministic wallets Development & Technical Discussion
Hello all,I've made some changes to BIP32 to deal with the issue of revealing a…
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n/a | iddo | April 21, 2013, 04:30:56 PM |
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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 | iddo | April 21, 2013, 05:10:09 PM |
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Deterministic wallets Development & Technical Discussion
I suggest to set and serialize maximum i for each extended key. Such serialized…
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n/a | iddo | April 21, 2013, 05:04:28 PM |
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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 | iddo | April 21, 2013, 04:44:41 PM |
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[5.5TH/s] Ozcoin Pooled Mining |DGM 1%|PoT 2%|PPS 3%|Stratum+VarDiff port 80 Pools
I'm going to explain this like you where 5 years old:I, my son, his children, wi…
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n/a | iddo | April 19, 2013, 09:14:25 AM |
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[5.5TH/s] Ozcoin Pooled Mining |DGM 1%|PoT 2%|PPS 3%|Stratum+VarDiff port 80 Pools
I'm going to explain this like you where 5 years old:I, my son, his children, wi…
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n/a | iddo | April 19, 2013, 08:55:50 AM |
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Litecoiners: Idea to make Litecoin importance skyrocket in Bitcoin ecosystem Altcoin Discussion
1. Add a new requirement to the Litecoin chain such that a valid Litecoin block…
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n/a | iddo | April 14, 2013, 04:59:28 PM |
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MC2: A democratic cryptocurrency based on a hybrid PoW/PoS system Altcoin Discussion
(2) The requirement of at least some coins (very large amounts as the chain matu…
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n/a | iddo | April 10, 2013, 08:41:44 AM |
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Deterministic wallets Development & Technical Discussion
An alternative might be to change the scheme so that the main trunk of a determi…
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n/a | iddo | April 01, 2013, 08:09:32 AM |
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Deterministic wallets Development & Technical Discussion
Part of what I wrote above is nonsense I think, regarding the supposed "disadvan…
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n/a | iddo | February 02, 2013, 06:03:41 AM |
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Deterministic wallets Development & Technical Discussion
Assuming all chain codes are known, if private key m/i/j is known, :3. are every…
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n/a | iddo | March 30, 2013, 05:42:33 PM |
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1 Free LTC For You Altcoin Discussion
LR1c6QnbfcVzLnfcjhETfQn84wQFapY8w9
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n/a | iddo | March 20, 2013, 06:29:01 AM |
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A successful DOUBLE SPEND US$10000 against OKPAY this morning. Bitcoin Discussion
A serious solution is simply for several major stakeholders to publish signed en…
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n/a | iddo | March 12, 2013, 03:09:01 PM |
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BIP32 (Hierarchical Deterministic Wallets) code available in Java Development & Technical Discussion
I want to stress that BIP32 isn't final yet, so please don't release code that i…
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n/a | iddo | March 01, 2013, 06:48:36 AM |
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Litecoin needs a community based improvement proposal system Altcoin Discussion
Hello tacotime,The main change to Litecoin that coblee, pooler, and I discussed…
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n/a | iddo | March 01, 2013, 02:23:19 AM |
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My ideal cryptocurrency Altcoin Discussion
Second it needs to solve or at the very least significantly improve the 51% vuln…
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n/a | iddo | February 28, 2013, 05:30:54 AM |
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Should bitcoin move to SHA-3 ? Development & Technical Discussion
Miners vote on the ordering of transactions, _thats it_. The rest of the rules a…
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n/a | iddo | February 25, 2013, 11:53:44 AM |
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Proof of Activity Proposal Development & Technical Discussion
Another idea: the lucky stakeholder who creates the block is allowed to also inc…
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n/a | iddo | February 22, 2013, 03:17:28 PM |
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Ripple Giveaway! Altcoin Discussion
rEcGbUF3ck7B5iLHkBWXbAiyCeyeWNoGRb
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n/a | iddo | February 22, 2013, 05:04:18 AM |
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Hard-forking Bitcoin to SHA-3 from SHA-2 Development & Technical Discussion
Would it be hard to switch Bitcoin over to SHA-3? How would it be done?If it tur…
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n/a | iddo | February 21, 2013, 05:23:44 AM |
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Proof of Activity Proposal Development & Technical Discussion
I didn't ignore that fact, I used the terminology "active stake" to refer to sta…
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n/a | iddo | February 11, 2013, 08:26:00 AM |
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Proof of Activity Proposal Development & Technical Discussion
About reviving lost coins: cunicula said that one of the features of voluntary P…
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n/a | iddo | February 02, 2013, 05:39:38 AM |
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Proof of Activity Proposal Development & Technical Discussion
Let me specify the best PoA protocol that cunicula and I came up with so far, be…
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n/a | iddo | January 06, 2013, 07:39:02 AM |
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Deterministic wallets Development & Technical Discussion
I think that there's some confusion here, type-2 should always be more secure th…
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n/a | iddo | February 01, 2013, 10:53:00 AM |
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Proof of Activity Proposal Development & Technical Discussion
cunicula, when you're back, please take a look in particular at post #157, and k…
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n/a | iddo | February 01, 2013, 12:08:15 PM |
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Proof of Activity Proposal Development & Technical Discussion
Your analysis ignores the fact that some of stakeholders won't be online/active.…
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n/a | iddo | January 06, 2013, 09:17:20 AM |
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Proof of Activity Proposal Development & Technical Discussion
Two ideas:1) We could try to introduce competition between miners and stakeholde…
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n/a | iddo | December 19, 2012, 11:03:19 AM |
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Proof of Proof - an alternative to proof of ___ systems Development & Technical Discussion
Standard disclaimer first: I am often wrong.But I've got a nagging feeling that…
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n/a | iddo | December 19, 2012, 11:42:05 AM |
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Proof of Activity Proposal Development & Technical Discussion
I don't think you have to worry about people providing voluntary signatures only…
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n/a | iddo | December 08, 2012, 07:33:18 AM |
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Market-Based Solution to the Decentralization vs. Speed Trade-off Altcoin Discussion
cunicula, in case you missed it, please respond to (the first part) of post #8 w…
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n/a | iddo | December 08, 2012, 07:41:50 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 | iddo | December 06, 2012, 04:20:56 AM |
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Proof of Activity Proposal Development & Technical Discussion
Yes, they could definitely do that. I'm not worried about it for the following r…
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n/a | iddo | December 01, 2012, 02:30:39 PM |
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