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Showing 18 of 18 results by KeepingScore
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Topic
Board Project Development
Re: Large Bitcoin Collider Thread 2.0
by
KeepingScore
on 19/10/2017, 19:33:14 UTC
Solution to the VM's "loadable library and perl binaries are mismatched" bug when you run "./collider/LBC -x" is to run "cpan -r" and let it update everything.
Post
Topic
Board Project Development
Re: Large Bitcoin Collider Thread 2.0
by
KeepingScore
on 13/10/2017, 09:50:53 UTC
No downloads available on site?
Post
Topic
Board Digital goods
Original Sales Leads Lists (for Cold Contact)
by
KeepingScore
on 04/10/2017, 18:56:47 UTC
3,014 California Attorney Leads (Name, Phone #, Website, Years in Practice, Practice Area & Skills)
Price: .009 BTC BTC

https://satoshibox.com/a2e5cki2cvy5m37wnt6egc57

286 New Hampshire Attorney Leads (Name, Phone #, Website, Years in Practice, Practice Area & Skills)
Price: .003 BTC BTC

https://satoshibox.com/fibfyo2eekg4xnyc7dn7hxyz

4,185 Virginia Attorney Leads (Name, Phone #, Website, Years in Practice, Practice Area & Skills)
Price: .012 BTC BTC

https://satoshibox.com/r5syauiy522vgbaod8gpofkj

280,000 Older (50+) Texans Demographic List - Phone, Address, Age, DOB, Ethnic Background, Gender and Religion
Price: .84 BTC BTC

https://satoshibox.com/k4nmnfbgw8crxvoirkqttm3v

I also accept requests for industries and demographics for custom lists, and offers for the list sales to be exclusive.


Please note:

All files are in excel format (XLS) unless otherwise specified.

Bitcoin, Ethereum, Litecoin, Bitcoin Cash, Monero, Dash and Dogecoin Accepted on Satoshibox

More to come.

Vouch copies available for Trusted, Long-Term BCT users.

Affiliate sales set to 70% Me / 30% Affiliate.

Post
Topic
Board Collectibles
Re: [Auction] BTCC 1K Bitcoin Poker Chip
by
KeepingScore
on 01/10/2017, 06:06:05 UTC
.014
Post
Topic
Board Development & Technical Discussion
Re: Security question about shared wallet seeds (Bitcoin & Ethereum)
by
KeepingScore
on 17/07/2017, 08:15:46 UTC
Unrelated to the functions as in not used, yes, but equal in strength is equal in strength. Again, I'm not talking decryption of public->private keys being a be-all solution to cracking wallets, but the level of strength is near or at the same levels, regardless of the protocols used. If you want to talk about ECDSA and cracking chains, let's talk hardwallets, going back to the original topic at hand.
You are completely misreading what OP asked about. What OP asked was:

So, is there any added risk when one hardware wallet is used to access multiple different cryptocurrency wallets? For instance, is it possible that the Ethereum blockchain data could at some point be broken to obtain private keys/seeds and using this information also access the Bitcoin wallet, or vice versa?

He asked if there was any added risk with using the same hardware wallet on multiple coins. What you are talking about is risk that already exists with hardware wallets, BIP 39, ECDSA, etc. The only added risk comes from the blockchains used by the various coins, and the blockchain has nothing to do with your keys.

Sorry, this is what I get for browsing bitcointalk right before bed. Oh well, hopefully someone gets a laugh out of it, or at least a chuckle.
Post
Topic
Board Development & Technical Discussion
Re: Security question about shared wallet seeds (Bitcoin & Ethereum)
by
KeepingScore
on 15/07/2017, 22:21:50 UTC
If someone breaks SHA-256 they'll be able to break SHA-512 in short order, relatively speaking. The orders of magnitude beyond what's being done right now say it's so. All avenues for modern cracking point to quantum state side channel attacks being the most likely candidates. Deriving a means of bypassing locks isn't what I'm referring to. And since hardware wallets rely on ECDSA for the most part (512 bits in some cases, re: BIP39), breaking SHA-256 definitely does have bearing. Standard cryptographic models aren't going allow it to be broken, but novel ones will. The fact that entropic quantum entanglement and the entanglement measure is an NP-Complete measurement means that no one's been able to look at it, except in novel effects-related efforts. I'm currently looking at electromigration as a candidate for bearing said data as it's related directly to quantum discord. Call it irrelevant if you like, but the security-level for bitcoin is based upon standard models, not taking into account measures that are outside of the boundaries. We've seen that bitcoin blocks can be falsely generated with the initial genesis block, and derive from there. Yes, that's a straw man for now, but that fact doesn't negate the weak foundations. Again, call that irrelevant or also un-prove-able. If I had a working model I'd be sitting in Maui. So, "pics or it didn't happen" all you want, I'll just leave this here so someday when it occurs I can refer back to it.
I never said that SHA512 is unrelated to SHA256 nor did I claim that SHA-2 functions won't be broken in the future. What I said is that these hash functions are unrelated to private keys. Can you explain how you would get private keys from public keys if SHA-2 were broken? What data in the blockchain, other than public keys, private key for a public key? What data related to hashes in the blockchain can get you the private key to a public key?

Getting the private key from a public key requires breaking ECDSA, not SHA-2. Even if you got a private key, you can't get the master private key or any other private keys in an HD wallet unless you also have the chaincode, but the chaincode is never put on the blockchain.

Unrelated to the functions as in not used, yes, but equal in strength is equal in strength. Again, I'm not talking decryption of public->private keys being a be-all solution to cracking wallets, but the level of strength is near or at the same levels, regardless of the protocols used. If you want to talk about ECDSA and cracking chains, let's talk hardwallets, going back to the original topic at hand. It's just as hard as SHA-256 and SHA-512 respectively in ECDSA. If SHA-XX2 were broken, the equality in entropy when using BIP 39 12x and 24x word wallet is therefore breakable as they're the same level of hardness, and would generate the master key and all subkeys for the hardware wallet, and mnemonic wallets. Deterministic wallets are a failure.

As for brute force and similar cracking methods, reducing the amount of space needed to be searched to find a viable wallet is the aim of either attacks. It needn't be an attack against an individual wallet. If security precautions are taken to upgrade bitcoin further in the future, only legacy wallets will have this issue. So long as you're relying on low bit-length codes, in either SHA-XX2 or ECDSA they'll be broken. Next Generation Encryption methods aren't extended at the moment because people see no need. Collisions against cracked private keys shorten the space yet again, yielding a limited space to search for chaincodes. Analysis of transactions narrows this further. People like to quote the "heat death of the universe" as in "hell will freeze over before that" but the reality is that shortening spaces in each case will lead to successful attacks unless the chaincode, too, is extended. And even then, human fallacy comes into play.
Post
Topic
Board Development & Technical Discussion
Re: Security question about shared wallet seeds (Bitcoin & Ethereum)
by
KeepingScore
on 15/07/2017, 20:47:54 UTC
While I tentatively agree with what you've said, I'll add that if someone breaks SHA-256 or SHA-512 anytime soon, all three.
No, breaking (by break I assume you mean a pre-image attack) SHA256 or SHA512 will not effect your private keys at all. SHA256 is not used in anything related to key derivation. SHA512 is used in key derivation, but you don't actually know the SHA512 hash unless you have a private key from the wallet, and even then, you only know half of the hash, not the full hash, so you can't find the preimage which would be the parent private key. These hash functions really are not involved in hardware wallets at all.

If someone breaks SHA-256 they'll be able to break SHA-512 in short order, relatively speaking. The orders of magnitude beyond what's being done right now say it's so. All avenues for modern cracking point to quantum state side channel attacks being the most likely candidates. Deriving a means of bypassing locks isn't what I'm referring to. And since hardware wallets rely on ECDSA for the most part (512 bits in some cases, re: BIP39), breaking SHA-256 definitely does have bearing. Standard cryptographic models aren't going allow it to be broken, but novel ones will. The fact that entropic quantum entanglement and the entanglement measure is an NP-Complete measurement means that no one's been able to look at it, except in novel effects-related efforts. I'm currently looking at electromigration as a candidate for bearing said data as it's related directly to quantum discord. Call it irrelevant if you like, but the security-level for bitcoin is based upon standard models, not taking into account measures that are outside of the boundaries. We've seen that bitcoin blocks can be falsely generated with the initial genesis block, and derive from there. Yes, that's a straw man for now, but that fact doesn't negate the weak foundations. Again, call that irrelevant or also un-prove-able. If I had a working model I'd be sitting in Maui. So, "pics or it didn't happen" all you want, I'll just leave this here so someday when it occurs I can refer back to it.
Post
Topic
Board Development & Technical Discussion
Re: Security question about shared wallet seeds (Bitcoin & Ethereum)
by
KeepingScore
on 09/07/2017, 22:36:55 UTC
The blockchain has nothing to do with your public and private keys. Hardware wallets really only deal with ECDSA public and private key pairs. The blockchain data and anything about the blockchain will not effect the security of your keys. The only thing that can expose your private keys is a vulnerability in ECDSA itself and your own stupidity.

While I tentatively agree with what you've said, I'll add that if someone breaks SHA-256 or SHA-512 anytime soon, all three. Supposedly we'll see attacks against hardware wallets this year at Defcon or Blackhat. I'd buy a Nano S anyway, but I would keep it in my safety deposit box or safe, or in a highly secure location because it's going to be physical attacks. Someone might've come up with ways to crack mnemonics faster but that's always been an issue for brainwallets and always will be, whether 3, 6, 12, or 24 words. I do like the plausible deniability feature of the Nano S, but it may be pointless if a great attack method comes out at one of the hacking conventions this year.

To flesh it out for him, nothing is stored on your hardware wallet that isn't corresponded with in the blockchain. Your wallet isn't holding your money, it's more like a key to your safety deposit box. You personally can be held hostage for it, and it may be that this year proves that it's physically vulnerable itself. I like the Ledger Nano S over the current alternatives, but if you're looking for long-term cold storage I'd buy more than one and have some very secret hiding place that only the Executor of your Last Will and Testament will have access to.
Post
Topic
Board Collectibles
Re: Selling Gemstone Lot
by
KeepingScore
on 07/07/2017, 13:01:29 UTC
bump, $550 OBO
Post
Topic
Board Computer hardware
WTS Oculus Rift, Touch, XBox Controller, 2x Sensors w/ Wall or Ceiling Mounts
by
KeepingScore
on 07/07/2017, 10:35:37 UTC
Like the title says, selling an Oculus Rift in good condition (light screen scratching, not noticeable during use), well cared for.
With it will be Touch Controllers, the XBox One controller it came with, plus two sensors and their wall / ceiling mounts.

$450 in BTC or LTC, shipped.

Photos to come.

Escrow required.
Post
Topic
Board Collectibles
Re: Selling Gemstone Lot
by
KeepingScore
on 04/07/2017, 14:12:18 UTC
What is approximate value of all of this?

>>A 4 ct topaz can be $10 or $50. It varies from stone to stone and where you source them. If each of the 36 storage and display jars runs $15 to $50 retail on eBay then around $700 to $1,000 at a conservative wholesale estimate, plus the stones not in jars. Good gemstones are more about cut, quality and presentation than a strict carat weight to value. It sounds absurd, but the same goes for diamonds as well. Most of these are good quality gems, though the majority of the emeralds and rubies are B grade gems (cloudy but still valuable, pretty and useful) with some exceptions. Even being B grade gems, the black jar of emeralds I'd price at $75+.

Do you have weights/sizes and amounts of each type of gem?

>>A rough estimate overall is in the hundreds of carats. If I had a refractometer, polariscope and GIA manual I could do the IDs, but that's time and money I don't have. I have the knowledge to do basic identification.

I bought these all while running a coin and jewelry shop as part of my profession, in lots and individually.

https://www.gemselect.com/calibrated-size/calibrated-size-chart.php helps for gem size to weight estimates -- each gem jar is 1 1/8"which is 38 mm which puts the largest blue topazes at around 8 carats each which run around $13 to $17 a piece on eBay.

If there's more interest I'll weigh them out by type and take close up photos with my DSLR rather than my Nexus 6P's camera.

How much would shipping be within US?
>>I'll ship for free, it'll be less than $15 to anywhere in the US.
Post
Topic
Board Collectibles
Selling Gemstone Lot
by
KeepingScore
on 04/07/2017, 13:36:01 UTC
Sold.
Post
Topic
Board Goods
Re: [WTB] Cross & Parker Writing Instruments / Pens
by
KeepingScore
on 04/07/2017, 06:58:23 UTC
Let's start with the majority of the Parkers, including many vintage, some still in clear case, box or cardboard-backer package
Some of then pens are a more expensive type, some are collectibles for novelty and untouched in boxes, while still others are loose. Gotta love their tape measures, too. Smiley



Parker

http://imgur.com/a/QUkm6

Other

http://imgur.com/a/iNj4c


Please excuse the mess if any showed in the photos, I'd been working 70 hours per week until this week, and took the photos on an aged whiteboard covered in printer paper. Smiley
Post
Topic
Board Beginners & Help
Re: Introduce yourself :)
by
KeepingScore
on 15/06/2011, 00:30:19 UTC
No, I am Batman.
Post
Topic
Board Beginners & Help
Re: Android Exchange Prices Apps
by
KeepingScore
on 15/06/2011, 00:29:56 UTC
thanks!
Post
Topic
Board Beginners & Help
Re: btc mining w/ Nvidia
by
KeepingScore
on 15/06/2011, 00:29:30 UTC
My advice is that if you're going to use a ramdisk, rent some hardware like a bi-quad Xeon with dual SSD, then make the ramdisk on that. I've done it under proxmox and while it's not as fast as straight-up OS -> ramdisk, VM OS -> ramdisk gives you a lot more versatility than just a normal setup. OVH is good for hardware like that.
Post
Topic
Board Beginners & Help
Re: The Most Cost Effective Mining Rig?
by
KeepingScore
on 15/06/2011, 00:27:35 UTC
nice!
Post
Topic
Board Beginners & Help
Hiya
by
KeepingScore
on 15/06/2011, 00:26:35 UTC
Hi folks, just wanted to say hello and that I'll be around for awhile. I've been a lurker up until this point and I've been following bitcoin for quite awhile.

Cheers!